Dual-purpose small barometer for seaside and buoy

Abstract

The invention discloses a seaside and buoy dual-purpose small barometer, and belongs to the technical field of ocean detection, the barometer comprises a shell, an air pressure sensor is installed in the shell, the air pressure sensor is provided with an air guide pipe used for pressure input, the air guide pipe penetrates through the shell, and the air guide pipe comprises an extension part located outside the shell; a plate assembly capable of making contact with the water body is arranged outside the shell and comprises a flow guide plate, the flow guide plate is provided with protrusions arranged at intervals in the vertical direction, the protrusions and the outer side wall of the shell form an overflowing channel, and the water body can act on the extending part through the overflowing channel. The device has salt fog resistance, and can realize long-term stable air pressure measurement.

Description

Technical Field

[0001] The invention relates to the technical field of ocean detection, and in particular to a small barometer for both seashore and buoy. Background Art

[0002] The air pressure sensor is a detection device that can sense the information being measured and can transform the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. It is the primary link in realizing automatic detection and control. The air pressure sensor is used to measure the absolute pressure of gas. It is mainly suitable for physical experiments related to gas pressure, such as gas laws, etc. It can also measure the pressure of dry, non-corrosive gases in biological and chemical experiments. The air pressure sensor is also often used to measure the absolute pressure of gas and is suitable for physical objects related to gas pressure.

[0003] The physical properties of the pressure sensor determine that the device equipped with the pressure sensor cannot be exposed to water, thus limiting the use environment of the pressure sensor and its device. In order to maintain the measurement accuracy of the barometer in various application scenarios, the barometer is required to be waterproof, dustproof and corrosion-resistant. There are currently two mainstream waterproof, dustproof and corrosion-resistant designs in the industry. The first is to fill with waterproof glue to protect the chip and packaging materials. This solution will cause the measurement accuracy of the barometer to be low due to the introduction of waterproof filling glue; the other is to use a waterproof breathable membrane solution, but the waterproof breathable membrane cannot block the influence of corrosive gases on the chip and internal packaging materials, which will cause the barometer to have poor reliability.

[0004] Patent application number WOJP22009979 discloses an atmospheric pressure detection sensor, an atmospheric pressure detection device, and a manufacturing method of an atmospheric pressure detection device. The atmospheric pressure detection sensor detects the atmospheric pressure by using the real-time situation of the change of the thermal conductivity of the atmosphere with the pressure. The sensor includes a thermistor for pressure detection, and also includes an insulating substrate surrounding the outside of the thermistor. A pair of electrode layers are formed on the insulating substrate, and the electrode layers are connected to the thermistor. The insulating substrate is covered with a protective film so that the pair of electrode layers are exposed to the outside, so that the thermistor is not affected by the outside atmosphere. The invention can solve the problem that the air pressure sensor of the prior art cannot measure the vacuum and air pressure at a pressure greater than the atmospheric pressure. However, in the prior art, since the air pipe for air pressure input needs to be exposed to the water, long-term contact will cause the air pipe and the seal to be corroded by seawater, affecting the accuracy of air pressure detection, and it is also easy to cause water seepage after corrosion, resulting in damage after water ingress into the device. Summary of the invention

[0005] The object of the present invention is to provide a small barometer for both seashore and buoy use which has high measurement stability and is resistant to salt spray.

[0006] A small barometer for both seaside and buoy use comprises: a shell, an air pressure sensor is installed in the shell, the air pressure sensor has an air pipe for pressure input, the air pipe passes through the shell, the air pipe includes an extension part outside the shell, and a plate assembly capable of contacting the water body is arranged outside the shell.

[0007] Preferably, the plate assembly includes a guide plate, the guide plate has protrusions arranged at intervals in the vertical direction, the protrusions and the outer wall of the shell form a flow channel, and the water body can act on the extension part through the flow channel. When the barometer is arranged at a seaside location, the strong airflow caused by tides and waves alternately acts on the barometer. At this time, when the strong airflow positively impacts the guide plate, the protrusions arranged at intervals can form multiple positions of diversion for the impact of the impact airflow, thereby reducing the lateral interference of the barometer, realizing the protection of the internal air pressure sensor, and reducing the possibility of the shell being separated from the installation position after a huge impact, reducing maintenance losses; The seawater forms salt mist under the combined effect of sea breeze and humid atmosphere, which permeates the air. Since the barometer works around the ocean for a long time, the salt mist will adhere to the barometer and cause corrosion. When the sea airflow acts on the barometer along the direction of the guide plate, the airflow is cut by the protrusion of the guide plate and enters each flow channel to form multiple sections of fast airflow. The fast airflow can remove the salt mist particles attached to the outer wall of the shell. At the same time, after the fast airflow flows out, it can act on the extension of the air guide pipe outside the shell to remove the salt mist attached to the extension, reduce the corrosion ability of the salt mist on the barometer, improve the internal sealing of the barometer, and thus improve the stability of air pressure measurement; When the barometer is placed on the buoy, the bulge can divert the sea airflow to weaken the lateral impact force, which helps stabilize the floating posture of the buoy and reduce the possibility that the buoy capsizes and sinks at sea, causing the barometer to be immersed in water and unable to perform normal detection; Compared with a flat plate, the protrusions set in the array can reflect external light at different angles, avoid the concentration of light after reflection, and reduce the intensity of reflected light. On the one hand, it is helpful to reduce the probability of the barometer being discovered by flying animals and achieve hidden protection of the barometer.

[0008] Preferably, the guide plates are arranged in a horizontal array on the outside of the shell, and there is a spacing between adjacent guide plates. When a strong airflow hits the guide plates in a positive direction, part of the airflow can enter from the gap between the guide plates, and flow out from the opposite direction after entering the flow channels on both sides, thereby promoting airflow in multiple directions to reduce the probability of salt mist adhering to the outside of the shell, and enhancing the salt spray resistance of the barometer.

[0009] Preferably, the plate assembly further comprises a plug plate, which is fixed to the upper and lower ends of the guide plate, a bracket is provided on the outer side of the shell, the plug plate can slide back and forth on the bracket along the extension direction of the flow passage, and the guide plate has a blade on the side away from the shell. The plug plate is slidably arranged on the outer side of the shell through the bracket, and the arrangement of the blade can increase the contact area between the guide plate and the airflow, that is, it is conducive to using the airflow to promote the lateral sliding of the guide plate on the outer side of the shell. Since the salt mist will remain solid particles outside the shell after further evaporation, and the silt in the seawater will be lifted up with the waves and tides and attached to the barometer, the reciprocatingly sliding guide plate can use the inner wall between adjacent protrusions to scrape off the salt mist particles and silt, thereby improving the cleanliness of the shell, further reducing the corrosion of the salt mist to the shell, and at the same time reducing the weight of the barometer, and improving the floating stability of the buoy when the barometer is arranged on the buoy.

[0010] Preferably, the bottom surface of the housing has a support, the air pressure sensor includes a chip, and the chip is fixed in the middle of the housing through the support. The chip is at a preset distance from the bottom and top of the housing through the support to reduce the impact interference transmitted to the chip by the top and bottom of the housing, thereby protecting the chip.

[0011] Preferably, a connector is provided outside the shell to protect the extension part, and the connector includes a base fixed to the shell, and the base is movably connected to a sleeve, and the sleeve is sleeved at the end of the extension part, and the sleeve can swing relative to the base. Since the air pipe extends out of the shell to detect the external air pressure, the waves and strong air currents at sea impact the barometer, which can easily cause the air pipe to swing back and forth, causing the air pipe to bend and break at the connection through the shell. The arrangement of the base and the sleeve protects the extension part of the air pipe, reduces the possibility of damage and breakage of the air pipe at the bend, improves the accuracy of air pressure detection, and reduces maintenance costs; The swing setting of the pipe sleeve and the base allows the air guide tube to still move slightly under the influence of airflow, which is beneficial to promote the shedding of mud and sand in the air guide tube, realize the anti-blocking function and improve the detection accuracy of the barometer when used for buoys.

[0012] Preferably, the base has a clamping block, and the tube sleeve has a clamping groove that cooperates with the clamping block. The clamping groove is arc-shaped, and the clamping block can move in the arc-shaped clamping groove to achieve a swing connection between the tube sleeve and the base. Preferably, one side of the shell has a mounting hole allowing the air guide tube to pass through, and a sealing member is provided at the mounting hole, and the sealing member is used to prevent water from entering the shell through the mounting hole.

[0013] Preferably, the shell comprises a cover body and a lid body, the upper edge of the cover body has an annular groove, a sealing ring is arranged in the groove, and the lid body is connected to and squeezes the sealing ring above the cover body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the guide plate guides the strong airflow and improves the installation stability of the barometer; the protrusion of the guide plate divides the airflow and guides it to the flow channel to form airflow acceleration, promote the elimination of salt mist attached to the outside of the shell, reduce maintenance costs, and improve the accuracy of air pressure measurement by reducing salt spray corrosion; the guide plate can ease the impact of water flow, improve the safety and stability of air pressure measurement when it is applied to the buoy; the protrusion can reflect external light in multiple directions, reduce the possibility of the barometer being discovered and destroyed by flying animals, and improve the concealment of the device; the interval setting of the guide plate facilitates the airflow to form multi-directional airflow through different flow channels, causing surrounding airflow disturbance, reducing the possibility of salt spray attachment, and further improving the corrosion resistance; the plug plate slides back and forth through the bracket, which helps to remove the sediment and salt spray crystals attached to the outside of the shell under the influence of the airflow, reduce corrosion, reduce the load, and improve its layout stability on the buoy. Therefore, the present invention is a small barometer for both seashore and buoy with high measurement stability and salt spray resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 A schematic diagram of a small barometer for both seashore and buoy use; Figure 2 This is a schematic diagram of the interior of a small barometer cover for both seaside and buoy use; Figure 3 It is a schematic diagram of the position of the shell and the plate assembly; Figure 4 is a schematic diagram of the board assembly structure; Figure 5 is a schematic diagram of the connecting piece structure; Figure 6 is a cross-sectional schematic diagram of a connecting frame; Figure 7 for Figure 6 A magnified schematic diagram of area A in the middle.

[0017] Figure numerals: shell 1; cover 10; cover 11; groove 12; sealing ring 13; air pressure sensor 2; air guide tube 3; air vent 30; plate assembly 4; guide plate 40; flow channel 41; plug plate 42; bracket 43; blade 44; connector 5; base 50; sleeve 51; block 52; slot 53; sealing member 6; first sealing ring 60; second sealing ring 61; bellows 62. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0020] See attached Figure 1 -Attached Figure 4 A small barometer for both seaside and buoy use comprises: a shell 1, a pressure sensor 2 is installed in the shell 1, the pressure sensor 2 has an air pipe 3 for pressure input, the air pipe 3 passes through the shell 1, the air pipe 3 includes an extension portion located outside the shell 1, and a plate assembly 4 capable of contacting the water body is provided outside the shell 1.

[0021] The plate assembly 4 includes a guide plate 40 , which has protrusions arranged at intervals in the vertical direction. The protrusions and the outer wall of the shell 1 form a flow channel 41 , and water can act on the extension part through the flow channel 41 .

[0022] It should be noted that the plate assembly 4 is arranged on two opposite sides of the housing 1 , and the two opposite sides are both adjacent to the side of the housing 1 through which the air duct 3 passes.

[0023] The guide plate 40 includes, but is not limited to, a metal plate capable of reflecting natural light.

[0024] When the barometer is arranged at a seaside location, the strong airflow caused by tides and waves alternately acts on the barometer. At this time, when the strong airflow positively impacts the guide plate 40, the protrusions arranged at intervals can form multiple positions of guide for the impact of the impact airflow, thereby reducing the lateral interference of the barometer, protecting the internal air pressure sensor 2, and reducing the possibility of the housing 1 being separated from the installation position after a huge impact, thereby reducing maintenance losses; The seawater forms salt mist in the air under the combined effect of sea breeze and humid atmosphere. Since the barometer works around the ocean for a long time, the salt mist will adhere to the barometer and cause corrosion. When the sea airflow acts on the barometer along the direction of the guide plate 40, the airflow is cut by the protrusion of the guide plate 40 and enters each flow channel 41 to form multiple sections of fast airflow. The fast airflow can remove the salt mist particles attached to the outer wall of the shell 1. At the same time, after the fast airflow flows out, it can act on the extension of the air guide pipe 3 outside the shell 1 to remove the salt mist attached to the extension, reduce the corrosion ability of the salt mist on the barometer, improve the internal sealing of the barometer, and thus improve the stability of air pressure measurement; When the barometer is placed on the buoy, the bulge can divert the sea airflow to weaken the lateral impact force, which helps stabilize the floating posture of the buoy and reduce the possibility that the buoy capsizes and sinks at sea, causing the barometer to be immersed in water and unable to perform normal detection; Compared with a flat plate, the protrusions set in the array can reflect external light at different angles, avoid the concentration of light after reflection, and reduce the intensity of reflected light. On the one hand, it is helpful to reduce the probability of the barometer being discovered by flying animals and achieve hidden protection of the barometer.

[0025] The guide plates 40 are arranged in a horizontal array outside the housing 1, and there is a spacing between adjacent guide plates 40. When a strong airflow hits the guide plates 40 in a positive direction, part of the airflow can enter from the spacing between the guide plates 40, and flow out from the opposite direction after entering the flow channels 41 on both sides, thereby promoting airflow in multiple directions to reduce the probability of salt mist adhering to the outside of the housing 1, and enhancing the salt spray resistance of the barometer.

[0026] The plate assembly 4 also includes a plug plate 42, which is fixed to the upper and lower ends of the guide plate 40. A bracket 43 is provided on the outer side of the shell 1. The plug plate 42 can slide back and forth on the bracket 43 along the extension direction of the flow passage 41. The guide plate 40 has a blade 44 on the side away from the shell 1. The plug plate 42 is slidably arranged on the outer side of the shell 1 through the bracket 43. The arrangement of the blade 44 can increase the contact area between the guide plate 40 and the airflow, that is, it is conducive to using the airflow to promote the lateral sliding of the guide plate 40 on the outer side of the shell 1. Since the salt mist will further evaporate and leave solid particles outside the shell 1, and the silt in the seawater will be lifted up with the waves and tides and attached to the barometer, the reciprocatingly sliding guide plate 40 can use the inner wall between adjacent protrusions to scrape off the salt mist particles and silt, thereby improving the cleanliness of the shell 1, further reducing the corrosion of the salt mist to the shell 1, and reducing the weight of the barometer, and improving the floating stability of the buoy when the barometer is arranged on the buoy.

[0027] The inner bottom surface of the housing 1 has a support, and the air pressure sensor 2 includes a chip, which is fixed in the middle of the housing 1 through the support. The chip has a preset distance from the inner bottom and inner top of the housing 1 through the support, so as to reduce the impact interference transmitted to the chip by the top and bottom of the housing 1 and protect the chip.

[0028] See attached Figure 5 The shell 1 is provided with a connector 5 for protecting the extension part. The connector 5 includes a base 50 fixed to the shell 1. The base 50 is movably connected with a sleeve 51. The sleeve 51 is sleeved at the end of the extension part, and the sleeve 51 can swing relative to the base 50. Since the air pipe 3 extends out of the shell 1 to detect the external air pressure, the waves and strong air currents at sea impact the barometer, which can easily cause the air pipe 3 to swing back and forth, causing the air pipe 3 to bend and break at the connection through the shell 1. The arrangement of the base 50 and the sleeve 51 forms a protection for the extension part of the air pipe 3, reduces the possibility of damage and breakage of the air pipe 3 at the bending part, improves the accuracy of air pressure detection, and reduces maintenance costs; The swinging arrangement of the tube sleeve 51 and the base 50 allows the air guide tube 3 to still move slightly under the influence of the airflow, which is beneficial to promoting the shedding of mud and sand in the air guide tube 3, realizing the anti-blocking function and improving the detection accuracy of the barometer when applied to the buoy.

[0029] The base 50 has a clamping block 52, and the pipe sleeve 51 has a clamping groove 53 that cooperates with the clamping block 52. The clamping groove 53 is arc-shaped, and the clamping block 52 can move in the arc-shaped clamping groove 53 to achieve a swing connection between the pipe sleeve 51 and the base 50.

[0030] It should be noted that in order to prevent water droplets formed by water or moisture from flowing into the air pressure sensor 2 in the air duct 3 and causing damage to the latter, the air duct 3 is always tilted downward.

[0031] One side of the housing 1 is provided with a mounting hole for allowing the air guide tube 3 to pass through, and a sealing member 6 is provided at the mounting hole, and the sealing member 6 is used to prevent water from entering the housing 1 through the mounting hole.

[0032] See attached Figure 6 -Attached Figure 7 An installation cavity is provided inwardly at one end of the sleeve 51 close to the base 50, and an annular space connected to the outside is formed between the installation cavity and the air duct 3. The sealing member 6 includes a first sealing ring 60 and a second sealing ring 61. The first sealing ring 60 is fixed to the end surface of the installation cavity in the sleeve 51, and the second sealing ring 61 is fixed to the outer end surface of the housing 1 where the installation hole is located. A bellows 62 is connected between the first sealing ring 60 and the second sealing ring 61, and the bellows 62 is sleeved outside the air duct 3.

[0033] The portion of the air guide tube 3 located inside the corrugated tube 62 is provided with an air hole 30; The inner edge of the corrugated tube 62 cooperates with the outer wall of the air guide tube 3 .

[0034] The bellows 62 can be stretched, deformed and bent to protect the outside of the air guide tube 3 at the bend. The bellows 62, the first sealing ring 60 and the second sealing ring 61 form an annular space outside the air guide tube 3, and the annular space is connected to the inside of the air guide tube 3. When the external strong airflow acts on the sleeve 51, the sleeve 51 carries the air guide tube 3 to swing and stretches the bellows 62 at the same time. After the bellows 62 is bent and stretched, the annular space squeezes the gas and passes through the air vent 30 to reach the inside of the air guide tube 3. Since the end of the air guide tube 3 is always kept The air duct 3 is connected to the outside world so that the salt mist can reach and adhere to the inner wall of the air duct 3 to cause corrosion. The airflow passing through the air holes 30 can flow from the inside to the outside of the air duct 3, thereby promoting the airflow to flow outward and carry away the salt mist, realizing the self-cleaning of the inside of the air duct 3, and improving the salt mist resistance of the air duct 3. At the same time, the outward-flowing airflow can accelerate the fluidity of the airflow inside the air duct 3, which helps to keep the inside of the air duct 3 dry, reduce the possibility of salt mist adhesion, and effectively ensure the detection accuracy of the data by the air pressure sensor 2.

[0035] The housing 1 comprises a cover body 10 and a cover body 11 . The cover body 10 has an annular groove 12 at its upper edge. A sealing ring 13 is arranged in the groove 12 . The cover body 11 is connected to the cover body 10 and presses the sealing ring 13 .

[0036] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention. This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A small barometer for both seaside and buoy use, comprising: A shell (1) is provided with an air pressure sensor (2) installed in the shell (1), wherein the air pressure sensor (2) has an air pipe (3) for inputting pressure, the air pipe (3) passes through the shell (1), the air pipe (3) includes an extension portion located outside the shell (1), and a plate assembly (4) capable of contacting a water body is provided outside the shell (1).

2. A small barometer for both seaside and buoy use according to claim 1, characterized in that: The plate assembly (4) comprises a guide plate (40), the guide plate (40) having protrusions arranged at intervals in a vertical direction, the protrusions and the outer wall of the shell (1) forming a flow passage (41), and water can act on the extension portion through the flow passage (41).

3. A small barometer for both seaside and buoy use according to claim 2, characterized in that: The guide plates (40) are arranged in an array along a horizontal direction on the outside of the shell (1), and there is a spacing distance between adjacent guide plates (40).

4. A small barometer for both seashore and buoy use according to claim 2, characterized in that: The plate assembly (4) further comprises an insert plate (42), the insert plate (42) being fixed to the upper end and the lower end of the guide plate (40), a bracket (43) being provided on the outer side of the shell (1), the insert plate (42) being able to slide back and forth on the bracket (43) along the extension direction of the flow passage (41), and the guide plate (40) having a blade plate (44) on a side away from the shell (1).

5. A small barometer for both seashore and buoy use according to claim 1, characterized in that: The inner bottom surface of the shell (1) has a support column, and the air pressure sensor (2) comprises a chip, and the chip is fixed at a middle position in the shell (1) by the support column.

6. A small barometer for both seashore and buoy use according to claim 1, characterized in that: The shell (1) is provided with a connecting piece (5) outside for protecting the extension part, the connecting piece (5) comprising a base (50) fixed to the shell (1), the base (50) being movably connected to a pipe sleeve (51), the pipe sleeve (51) being sleeved on the end of the extension part, and the pipe sleeve (51) being able to swing relative to the base (50).

7. A small barometer for both seaside and buoy use according to claim 6, characterized in that: The base (50) has a clamping block (52), and the pipe sleeve (51) has a clamping groove (53) that cooperates with the clamping block (52).

8. A small barometer for both seashore and buoy use according to claim 6, characterized in that: One side of the housing (1) has a mounting hole that allows the air guide tube (3) to pass through, and a sealing member (6) is provided at the mounting hole, and the sealing member (6) is used to prevent water from entering the housing (1) through the mounting hole.

9. A small barometer for both seashore and buoy use according to claim 1, characterized in that: The housing (1) comprises a cover body (10) and a lid body (11); the upper edge of the cover body (10) has an annular groove (12); a sealing ring (13) is arranged in the groove (12); and the lid body (11) is connected to and presses the sealing ring (13) above the cover body (10).

Images