Transmitter based on large cabin liquid level sensing

Abstract

The invention discloses a transmitter based on large cabin liquid level sensing, and relates to the technical field of transmitters. The device comprises a lower flange, an upper flange is fixed above the lower flange, six fixing blocks are arranged between the lower flange and the upper flange, and fastening assemblies corresponding to the six fixing blocks are arranged on the edge of the lower flange and the edge of the upper flange. Through the arrangement of the lower flange and the upper flange, a pressure guide cavity completely isolated from the outside is formed in the transmitter, the sealing reliability of the transmitter can be ensured by utilizing the two layers of sealants, when parts in the lower flange or the upper flange are damaged, the parts can be disassembled in time for partial replacement, the purchase cost and the repair cost are greatly saved, and the production efficiency is improved. In addition, the filter screen is arranged below the pressure guide hole, and the blocked filter screen can be cleaned in time by using the push plate and the cleaning rod, so that the situation that an unknown object blocks the pressure guide hole or collides with the pressure sensitive element through the pressure guide hole to trigger an error signal is greatly reduced, and the accuracy is further improved.

Description

Technical Field

[0001] The invention belongs to the field of transmitters, and in particular, relates to a transmitter based on large-scale cabin liquid level sensing. Background Art

[0002] Some of the existing ship's cabins are used to transport liquid cargoes. If they pass the calibration, they can be used as measuring containers. By measuring the liquid level, temperature, and medium density in the cargo hold, and then looking up the corresponding tank capacity table, the volume and weight (mass) of the medium loaded are calculated for trade transfer. However, when the ship's cabin is transporting liquids, a transmitter is required to measure its liquid level.

[0003] A Chinese patent with publication number CN103292856A discloses a method for automatically calibrating the capacity of an irregular ship cabin, which is characterized in that: a pressure water source passes through a water supply pipeline through a pressure reducing and stabilizing valve, and after reducing and stabilizing the pressure, the pressure is measured by a flow meter, and then the temperature is measured by a first temperature transmitter, and then the water flows into the irregular ship cabin; the water pressure at the outlet of the pressure reducing and stabilizing valve is detected by a pressure transmitter; the liquid level in the irregular cabin is measured in real time by a liquid level meter; the liquid temperature in the irregular cabin is measured in real time by a second temperature transmitter; the control system obtains the volume of the ship cabin corresponding to the liquid level according to the flow data measured by the flow meter and the liquid level height measured by the liquid level meter, and performs volume correction according to the temperature difference between the first and second temperature transmitters.

[0004] Existing transmitters usually connect the underwater sensor part and the above-water power supply and output part through a special cable. Generally, the cable and the sensor part are inseparable. When replacing and maintaining the sensor part, the cable part must be removed together. In the case that the cable is too long, the value of the cable itself will exceed the transmitter itself. If the transmitter fails and needs to be repaired, it will cause very high maintenance costs. In addition, when the transmitter is in use, it is inevitable that it will encounter impurities or other objects in the water, which can easily cause blockage or collision of the lower end of the transmitter, thereby affecting the accuracy of the transmitter. In addition, existing split transmitters are usually installed and fixed with multiple screws, and tools are required to be used to disassemble and assemble them one by one, which makes subsequent replacement more troublesome.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a transmitter based on large-scale cabin liquid level sensing, thereby solving the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A transmitter based on large-scale cabin liquid level sensing, comprising: a lower flange, an upper flange is fixed above the lower flange, six fixing blocks are installed between the lower flange and the upper flange, fastening components corresponding to the six fixing blocks are installed at the edges of the lower flange and the upper flange, a cable is installed in the middle of the upper end of the upper flange, a high temperature resistant waterproof connector is installed in the middle of the lower end of the upper flange, the lower end of the high temperature resistant waterproof connector is threadedly connected to the middle of the upper end of the lower flange, the upper part of the upper flange and the upper part of the lower flange are filled with sealant, an air duct is installed at the upper end of the lower flange, a polymer plug is installed at the upper end of the air duct, a pressure sensitive element is installed at the lower part of the lower flange, high temperature resistant silicone wires are fixed between the upper end of the high temperature resistant waterproof connector and the cable, and between the lower end of the high temperature resistant waterproof connector and the pressure sensitive element, and a pressure lead hole corresponding to the pressure sensitive element is opened in the middle of the lower end of the lower flange;

[0009] The filter screen is threadedly connected to the peripheral side of the lower end of the lower flange, and a push plate is slidably matched on one side of the lower end of the lower flange. A plurality of cleaning rods corresponding to the filter screen are fixed on one side of the push plate.

[0010] Optionally, a groove is provided at the lower edge of the lower flange, a micro motor is fixed at the top of the groove, a screw is fixed at the output end of the micro motor, and the middle of one end of the push plate is matched with the circumferential thread of the screw. By using the micro motor to drive the screw to rotate, the push plate and the cleaning rod are driven to move toward the side close to the filter screen, so that the cleaning rod can clean the debris blocked at the filter screen.

[0011] Optionally, a sealing gasket corresponding to the micro motor is installed in the groove, and the filter screen is located on the outside of the push plate, and the filter screen and the push plate correspond to the pressure-inducing hole. The sealing gasket is used to seal the micro motor and waterproof, and the filter screen can be used to protect the pressure-inducing hole, effectively preventing debris from clogging the pressure-inducing hole, so as to better measure the liquid level.

[0012] Optionally, the fastening assembly includes a slot provided on the peripheral side of the fixed block, two grooves provided inside the edges of the lower flange and the upper flange, a plurality of blocks elastically fitted in the slot, a circular ring plate threadedly fitted in the slot, and elastic bumps fixed to the relatively outer sides of the lower flange and the upper flange, respectively. The slot corresponds to the block, and the upper side of the slot and the lower side of the block are both inclined surfaces. A spring is fixed between one side of the inner wall of the slot and the block, and one end of the circular ring plate located in the slot is an inclined arc surface, which corresponds to one end of the outer side of the block, and the elastic bumps correspond to the outer side of the circular ring plate. By rotating the circular ring plate, multiple blocks can be squeezed to form a clamping and fastening relationship with the slot, thereby realizing the simultaneous installation and fixation of multiple fixed blocks, improving overall convenience, reducing the trouble of installing fixed blocks one by one, and using the elastic bumps to fix the adjusted circular ring plate again, further ensuring the stability when the lower flange and the upper flange are connected.

[0013] Optionally, a clamping screw is installed between the upper end of the upper flange and the peripheral side of the cable, and a fluororubber rectangular pad and a metal gasket are installed between the inner side of the upper side of the upper flange and the peripheral side of the cable. By using the clamping screw, the fluororubber rectangular pad and the metal gasket, the upper flange and the cable are sealed and fixed, thereby improving the waterproof sealing performance.

[0014] Optionally, a first sealing ring and a second sealing ring are installed on the inner side of the connection between the lower flange and the upper flange, a third sealing ring is installed at the plug-in place of the high temperature resistant waterproof plug-in connector, and a tightening nut is installed at the plug-in place of the high temperature resistant waterproof plug-in connector. By using the third sealing ring to seal the plug-in place of the high temperature resistant waterproof plug-in connector, the waterproof sealing performance is improved, and by using the tightening nut, the connection reliability of the high temperature resistant waterproof plug-in connector after plugging can be improved.

[0015] Optionally, one sealant is located between the upper part of the upper flange and the peripheral side of the cable, and the other sealant is located between the upper part of the lower flange and the plug of the high temperature resistant waterproof connector and the peripheral side of the air guide tube. The overall sealing can be further improved by using the sealant.

[0016] Optionally, a fourth sealing ring is installed between the peripheral side of the pressure sensitive element and the middle part of the lower end of the lower flange. By using the fourth sealing ring, the sealing between the pressure sensitive element and the lower flange can be achieved to prevent water from entering the lower flange.

[0017] Optionally, the high temperature resistant and waterproof connector is located between the pressure sensitive element and the cable. By utilizing the pressure sensitive element, the output signal can be transmitted via the high temperature resistant silicone wire.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0019] 1. By setting the lower flange and upper flange, a pressure-conducting cavity completely isolated from the outside is formed inside the transmitter. The pluggable connector inside the pressure-conducting cavity can transmit signals. At the same time, the pressure-conducting cavity ensures the passage between the transmitter and the atmosphere, and the two layers of sealant provided can ensure its sealing reliability. The use of this sealing form ensures that the seal in the gas-conducting cavity is not damaged even if the cable sheath is slightly damaged during use, thereby improving the reliability of the transmitter product. When the components in the lower flange or the upper flange are damaged, they can be disassembled and partially replaced in time, which greatly saves the procurement cost and rework cost.

[0020] 2. By setting a filter under the pressure-inducing hole and using a push plate and a cleaning rod to clean the blocked filter in time, the occurrence of unknown objects blocking the pressure-inducing hole or hitting the pressure-sensitive element through the pressure-inducing hole and triggering an error signal is greatly reduced, further improving its accuracy. The upper flange and the lower flange can be quickly disassembled and assembled by using the set fixing blocks and fastening components, reducing the trouble of disassembly and assembly by screwing the screws one by one, thereby improving overall convenience.

[0021] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] In the figure:

[0024] Figure 1 It is the schematic diagram of the transmitter structure;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the transmitter;

[0026] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0027] Figure 4 for Figure 2 Schematic diagram of the structure at B in the middle;

[0028] Figure 5 This is a schematic diagram of the high temperature resistant silicone wire structure;

[0029] Figure 6 It is a schematic diagram of the upper flange structure;

[0030] Figure 7 Schematic diagram of the airway structure.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] Lower flange 1, first sealing ring 2, second sealing ring 3, third sealing ring 4, upper flange 5, high temperature resistant waterproof connector 6, high temperature resistant silicone wire 7, fluororubber rectangular pad 8, metal gasket 9, clamping screw 10, cable 11, polymer plug 12, air guide tube 121, fixing block 13, circular ring plate 14, sealant 15, pressure sensitive element 16, fourth sealing ring 17, pressure-inducing hole 18, filter 19, push plate 20, cleaning rod 21, groove 22, micro motor 23, screw 24, channel 25, slot 26, block 27, spring 28, elastic collision bead 29.

[0033] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] See also Figure 1-7 As shown, in this embodiment, a transmitter based on large-scale cabin liquid level sensing is provided, including a lower flange 1, an upper flange 5 is fixed above the lower flange 1, six fixing blocks 13 are installed between the lower flange 1 and the upper flange 5, and fastening components corresponding to the six fixing blocks 13 are installed at the edges of the lower flange 1 and the upper flange 5. A cable 11 is installed in the middle of the upper end of the upper flange 5, and a high-temperature resistant waterproof connector 6 is installed in the middle of the lower end of the upper flange 5. The lower end of the high-temperature resistant waterproof connector 6 is threadedly connected to the middle of the upper end of the lower flange 1, and the upper part of the upper flange 5 and the upper part of the lower flange 1 are both The lower flange 1 is filled with sealant 15, an air duct 121 is installed at the upper end of the lower flange 1, a polymer plug 12 is installed at the upper end of the air duct 121, and the air inside the lower flange 1 is connected to the atmosphere inside the upper flange 5 through the air duct 121 and the polymer plug 12. A pressure sensitive element 16 is installed at the lower part of the lower flange 1, and a high-temperature resistant silicone wire 7 is fixed between the upper end of the high-temperature resistant waterproof connector 6 and the cable 11, and between the lower end of the high-temperature resistant waterproof connector 6 and the pressure sensitive element 16. A pressure-inducing hole 18 corresponding to the pressure sensitive element 16 is opened in the middle of the lower end of the lower flange 1;

[0036] A filter screen 19 is threadedly connected to the circumferential side of the lower end of the lower flange 1 , and a push plate 20 is slidably fitted on one side of the lower end of the lower flange 1 . A plurality of cleaning rods 21 corresponding to the filter screen 19 are fixed on one side of the push plate 20 .

[0037] The application of one aspect of this embodiment is as follows: first, the pressure sensitive element 16 is installed at the lower end of the lower flange 1 corresponding to the pressure-introducing hole 18, and then the high-temperature resistant waterproof connector 6 and the air guide tube 121 are installed at the upper end of the lower flange 1 through the thread and the third sealing ring 4, and the tightening nut, and the pressure sensitive element 16 is connected to the high-temperature resistant waterproof connector 6, and then the polymer plug 12 is installed at the upper end of the air guide tube 121. At this time, the cable 11 is installed at the upper end of the upper flange 5 through the clamping screw 10 and the fluororubber rectangular pad 8 and the metal washer 9, and the upper end of the high-temperature resistant waterproof connector 6 is connected to the cable through the high-temperature resistant silicone wire 7. 11 is connected, and the lower flange 1 and the upper flange 5 are connected and installed. During installation, the contact surface of the lower flange 1 and the upper flange 5 is provided with a first sealing ring 2 and a second sealing ring 3, and then the interior of the upper flange 5 and the connection between the lower flange 1 and the plug part of the high-temperature waterproof connector 6 are filled with sealant 15. After the installation is completed, the transmitter is placed inside the cabin. When the water in the cabin transmits the real-time pressure to the pressure sensitive element 16 through the pressure-inducing hole 18, the output signal of the pressure sensitive element 16 is transmitted to the high-temperature waterproof connector 6 through the high-temperature silicone wire 7, and then transmitted to the cable 11 output through the high-temperature silicone wire 7. It should be noted that all electrical equipment involved in this application can be powered by batteries or external power supplies.

[0038] like Figure 3-4 As shown, in this embodiment, a groove 22 is provided at the lower edge of the lower flange 1, a micro motor 23 is fixed at the top of the groove 22, a screw 24 is fixed at the output end of the micro motor 23, and the middle of one end of the push plate 20 is threadedly matched with the circumferential side of the screw 24. A sealing gasket corresponding to the micro motor 23 is installed in the groove 22, and the filter screen 19 is located outside the push plate 20, and the filter screen 19 and the push plate 20 are both corresponding to the pressure-inducing hole 18. The micro motor 23 is started, so that the output end of the micro motor 23 drives the screw 24 to rotate, and then the screw 24 is threadedly matched with the middle of one end of the push plate 20, thereby driving the push plate 20 and the cleaning rod 21 to move toward the side close to the filter screen 19, so that the cleaning rod 21 extends out of the hollow part of the filter screen 19, cleans the blocked debris, effectively reduces the blockage, and protects the pressure sensitive element 16 at the same time. Among them, the micro motor 23 can be controlled by an external controller.

[0039] like Figure 2-3As shown, in this embodiment, the fastening assembly includes a slot 26 opened on the peripheral side of the fixing block 13, two grooves 25 opened inside the edges of the lower flange 1 and the upper flange 5, a plurality of blocks 27 elastically fitted in the slot 25, a circular ring plate 14 threadedly fitted in the slot 25, and elastic beads 29 fixed to the relatively outer sides of the lower flange 1 and the upper flange 5, respectively. The slot 26 corresponds to the block 27, and the upper side of the slot 26 and the lower side of the block 27 are both inclined surfaces. A spring 28 is fixed between one side of the inner wall of the slot 25 and the block 27. One end of the circular ring plate 14 located in the slot 25 is an inclined arc surface, which corresponds to one end of the outer side of the block 27, and the elastic beads 29 correspond to the outer side of the circular ring plate 14. The plurality of fixing blocks 13 are respectively installed from top to bottom to the middle of the edges of the lower flange 1 and the upper flange 5, at which time the block 27 is aligned with the slot 26, and then the two annular plates 14 are manually rotated so that the annular plates 14 and the groove 25 are threadedly matched to move toward the side close to the block 27, and then the oblique arc surface at one end of the annular plate 14 squeezes the block 27, so that the block 27 extends into the slot 26 to form a clamping relationship with it, and the spring 28 is in a stretched state at this time, thereby achieving the purpose of synchronously fixing and installing the plurality of fixing blocks 13 at one time, reducing the trouble of separate disassembly and assembly, and after the installation is completed, the elastic collision bead 29 can be used to fix the position of the annular plate 14 again. When disassembling, it is only necessary to cancel the squeezing relationship of the annular plate 14 on the block 27, and the spring 28 elastically rebounds to drive the block 27 to withdraw from the slot 26, and at the same time pull the fixing block 13 from the bottom, so that the upper side of the slot 26 and the inclined surface of the lower side of the block 27 contact, and the disassembly is never completed.

[0040] like Figure 5 As shown, in this embodiment, a clamping screw 10 is installed between the upper end of the upper flange 5 and the peripheral side of the cable 11, and a fluororubber rectangular gasket 8 and a metal gasket 9 are installed between the upper inner side of the upper flange 5 and the peripheral side of the cable 11. The fluororubber rectangular gasket 8 and the metal gasket 9 are first installed between the upper inner side of the upper flange 5 and the peripheral side of the cable 11, and then the clamping screw 10 is installed between the upper end of the flange 5 and the peripheral side of the cable 11, so as to achieve a sealed installation of the cable 11.

[0041] like Figure 5 As shown, in this embodiment, the first sealing ring 2 and the second sealing ring 3 are installed on the inner side of the connection between the lower flange 1 and the upper flange 5, the third sealing ring 4 is installed at the insertion of the high temperature resistant waterproof plug-in connector 6, and the tightening nut is installed at the insertion of the high temperature resistant waterproof plug-in connector 6. The first sealing ring 2 and the second sealing ring 3 are used for sealing between the upper flange 5 and the lower flange 1, the third sealing ring 4 is installed at the insertion of the high temperature resistant waterproof plug-in connector 6 to achieve sealing, and the high temperature resistant waterproof plug-in connector 6 is fixedly connected by tightening the nut.

[0042] like Figure 5As shown, in this embodiment, one sealant 15 is located between the upper part of the upper flange 5 and the peripheral side of the cable 11, and the other sealant 15 is located between the upper part of the lower flange 1 and the plug of the high temperature resistant waterproof connector 6 and the peripheral side of the air guide tube 121. By filling the sealant 15, the sealing performance is further improved, and the service life of the transmitter is extended.

[0043] like Figure 3-4 As shown, in this embodiment, a fourth sealing ring 17 is installed between the periphery of the pressure sensitive element 16 and the middle of the lower end of the lower flange 1. The high temperature resistant waterproof connector 6 is located between the pressure sensitive element 16 and the cable 11. The fourth sealing ring 17 is used to seal the periphery of the pressure sensitive element 16 and the middle of the lower end of the lower flange 1 to prevent water from entering the lower flange 1 through the pressure sensitive element 16, and the output signal of the pressure sensitive element 16 is transmitted to the high temperature resistant waterproof connector 6 and the cable 11 through the high temperature resistant silicone wire 7 for output.

[0044] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware that any structural changes made under the enlightenment of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. A transmitter based on large-scale cabin liquid level sensing, characterized in that: include: A lower flange (1), an upper flange (5) is fixed above the lower flange (1), six fixing blocks (13) are arranged between the lower flange (1) and the upper flange (5), fastening components corresponding to the six fixing blocks (13) are arranged at the edges of the lower flange (1) and the upper flange (5), a cable (11) is arranged at the middle of the upper end of the upper flange (5), a high temperature resistant waterproof connector (6) is arranged at the middle of the lower end of the upper flange (5), the lower end of the high temperature resistant waterproof connector (6) is threadedly connected to the middle of the upper end of the lower flange (1), and the upper part of the upper flange (5) and the lower flange (1) are connected. The upper part of the lower flange (1) is filled with sealant (15), the upper end of the lower flange (1) is equipped with an air guide tube (121), the upper end of the air guide tube (121) is equipped with a polymer plug (12), the lower part of the lower flange (1) is equipped with a pressure sensitive element (16), high temperature resistant silicone wires (7) are fixed between the upper end of the high temperature resistant waterproof connector (6) and the cable (11), and between the lower end of the high temperature resistant waterproof connector (6) and the pressure sensitive element (16), and a pressure inlet hole (18) corresponding to the pressure sensitive element (16) is opened in the middle of the lower end of the lower flange (1); The lower end of the lower flange (1) is threadedly connected to a filter screen (19), and one side of the lower end of the lower flange (1) is slidably matched with a push plate (20), and one side of the push plate (20) is fixed with a plurality of cleaning rods (21) corresponding to the filter screen (19).

2. A transmitter based on large-scale tank liquid level sensing according to claim 1, characterized in that: A groove (22) is provided at the lower edge of the lower flange (1), a micro motor (23) is fixed at the top of the groove (22), a screw rod (24) is fixed at the output end of the micro motor (23), and the middle part of one end of the push plate (20) is matched with the peripheral thread of the screw rod (24).

3. A transmitter based on large-scale tank liquid level sensing according to claim 2, characterized in that: A sealing gasket corresponding to the micro motor (23) is installed in the groove (22), the filter screen (19) is located outside the push plate (20), and the filter screen (19) and the push plate (20) both correspond to the pressure-inducing hole (18).

4. A transmitter based on large-scale tank liquid level sensing according to claim 1, characterized in that: The fastening assembly comprises a clamping groove (26) provided on the peripheral side of a fixing block (13), two grooves (25) provided inside the edges of a lower flange (1) and an upper flange (5), a plurality of clamping blocks (27) elastically fitted in the grooves (25), a circular ring plate (14) threadedly fitted in the grooves (25), and elastic collision beads (29) respectively fixed to the relatively outer sides of the lower flange (1) and the upper flange (5).

5. A transmitter based on large-scale tank liquid level sensing according to claim 4, characterized in that: The clamping groove (26) corresponds to the clamping block (27), and the upper side of the clamping groove (26) and the lower side of the clamping block (27) are both inclined surfaces. A spring (28) is fixed between one side of the inner wall of the groove (25) and the clamping block (27). One end of the circular ring plate (14) located in the groove (25) is an inclined arc surface, and the inclined arc surface corresponds to one end of the outer side of the clamping block (27). The elastic collision bead (29) corresponds to the outer side of the circular ring plate (14).

6. A transmitter based on large-scale tank liquid level sensing according to claim 1, characterized in that: A clamping screw (10) is installed between the upper end of the upper flange (5) and the peripheral side of the cable (11), and a fluororubber rectangular pad (8) and a metal gasket (9) are installed between the inner side of the upper side of the upper flange (5) and the peripheral side of the cable (11).

7. A transmitter based on large-scale tank liquid level sensing according to claim 1, characterized in that: A first sealing ring (2) and a second sealing ring (3) are installed on the inner side of the connection between the lower flange (1) and the upper flange (5), a third sealing ring (4) is installed at the insertion point of the high temperature resistant waterproof connector (6), and a tightening nut is installed at the insertion point of the high temperature resistant waterproof connector (6).

8. A transmitter based on large-scale tank liquid level sensing according to claim 1, characterized in that: One sealant (15) is located between the upper part of the upper flange (5) and the peripheral side of the cable (11), and the other sealant (15) is located between the upper part of the lower flange (1) and the plug of the high temperature resistant waterproof connector (6) and the peripheral side of the air guide tube (121).

9. A transmitter based on large-scale tank liquid level sensing according to claim 1, characterized in that: A fourth sealing ring (17) is installed between the peripheral side of the pressure sensitive element (16) and the middle part of the lower end of the lower flange (1).

10. A transmitter based on large-scale tank liquid level sensing according to claim 1, characterized in that: The high temperature resistant and waterproof connector (6) is located between the pressure sensitive element (16) and the cable (11).

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