CN113587907B

CN113587907B - Full-sea depth gauge

Info

Publication number: CN113587907B
Application number: CN202110865553.3A
Authority: CN
Inventors: 翁利春; 曾锦锋; 杨平宇; 龙威
Original assignee: Hangzhou Hanlu Marine Technology Co ltd
Current assignee: Hangzhou Hanlu Marine Technology Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2023-01-03
Anticipated expiration: 2041-07-29
Also published as: CN113587907A

Abstract

The invention relates to the technical field of ocean exploration, in particular to a full-sea depth gauge which comprises a depth gauge measuring bin body and a pressure transmission protection bin body, wherein the depth gauge measuring bin body is connected with the pressure transmission protection bin body in a sealing mode, the pressure transmission protection bin body is provided with an anti-corrosion outer side driving part capable of transmitting pressure through deformation at the periphery and a pressure transmission channel which is formed in the anti-corrosion outer side driving part and can be deformed under the driving of the anti-corrosion outer side driving part, the pressure transmission channel is communicated to the tail part of the depth gauge measuring bin body, anti-corrosion pressure transmission media are filled in the pressure transmission channel, a pressure sensor is installed in the depth gauge measuring bin body, and a testing head of the pressure sensor is embedded in the tail part of the depth gauge measuring bin body and can be in contact with the anti-corrosion pressure transmission media in the pressure transmission channel, so that the full-sea depth can be measured.

Description

Full-sea depth gauge

Technical Field

The invention relates to the technical field of ocean exploration, in particular to a full-sea depth gauge.

Background

The existing depth gauges for rivers and seas are various in types, and are usually designed by adopting a pressure sensor and a structure with a protective shell, but the testing part of the pressure sensor in the structure can be exposed in seawater for use, so that the sensor is easily corroded, or other conditions causing damage to the sensor occur.

From this, also there is some depth gauge structures that protectiveness is better to appear, like the indirect measurement formula depth gauge that a chinese patent that application number is 201922260175.7 discloses for underwater robot, including casing, biography pressure end cover, conversion end cover, seal pin, pressure sensor and biography pressure diaphragm, wherein casing one end links firmly with biography pressure end cover seal, and the other end links firmly with conversion end cover seal, and pressure sensor locates in the casing, the casing is close to biography pressure end cover one end and is equipped with pressure cabin and seal pin, be equipped with in the seal pin and pass the pressure passageway, be equipped with in the biography pressure end cover and pass through the pressure passageway with pass through the intercommunication of pressure passageway, just pressure cabin, biography pressure passageway and biography pressure through-hole are filled with hydraulic oil, it is equipped with the biography pressure diaphragm to pass through the pressure cabin is passed through pressure sensor detects pressure.

However, the above conventional depth gauge structure is only transmitted through a pressure transmitting diaphragm on the outer side and hydraulic oil filled in the pressure chamber, the pressure transmitting channel and the pressure transmitting through hole, so that the pressure transmitting diaphragm is deformed inward to transmit pressure after being subjected to water pressure, the hydraulic oil inside the pressure transmitting diaphragm is squeezed by the deformed diaphragm, the hydraulic oil is compressed to increase the pressure, and the pressure is increased along with the increase of depth in water.

Disclosure of Invention

The invention aims to provide a depth meter capable of measuring the full sea depth.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a full sea depth gauge, includes the depth gauge and measures the storehouse body and the pressure transmission protection storehouse body, the depth gauge measure the storehouse body with the sealed connection of pressure transmission protection storehouse body, the pressure transmission protection storehouse body have the outlying can pass through deformation transmission pressure's anticorrosion outside drive division and the anticorrosion outside drive division is formed with receive the pressure transmission passageway that anticorrosion outside drive division drive can be deformed, just the pressure transmission passageway accesss to the afterbody of the depth gauge measurement storehouse body, it has anticorrosive pressure transmission medium to fill in the pressure transmission passageway, install a pressure sensor in the depth gauge measurement storehouse body, pressure sensor's test head inlays anticorrosive pressure transmission medium in the afterbody of the depth gauge measurement storehouse body and the ability contact pressure transmission passageway.

Preferably, the corrosion-resistant pressure transmission medium is an insulating oil.

As a preferable aspect of the present invention, the corrosion-proof outside driving part includes a corrosion-proof cortical enclosing bag having an a outflow opening, and an internal space of the corrosion-proof cortical enclosing bag is the pressure transmission passage.

Preferably, the part of the anti-corrosion outer side driving part, which is positioned at the A outflow hole, is hermetically and externally connected with a driving end A joint for being hermetically connected with the depth gauge measuring bin body.

Preferably, the periphery of the anti-corrosion cortical surrounding bag comprises a fixed peripheral frame and is arranged on the joint at the driving end A, and the fixed peripheral frame is provided with a driving hole which is communicated with the inside and the outside so that seawater can contact the outer surface of the anti-corrosion cortical surrounding bag.

Preferably, the anti-corrosion outer driving portion includes an anti-corrosion hard surrounding cylinder, the anti-corrosion hard surrounding cylinder has a B outflow port, and a driving end B joint for hermetically connecting to the depth gauge bin is hermetically connected to a portion of the B outflow port, an internal space of the anti-corrosion hard surrounding cylinder is the pressure transmission channel, the pressure transmission channel of the anti-corrosion hard surrounding cylinder has a cylindrical pressure transmission driving section, the pressure transmission driving section leads from the inside of the anti-corrosion hard surrounding cylinder to the outside, and a driving piston capable of moving in the pressure transmission driving section to drive pressure change is hermetically inserted from the outside to the inside in the pressure transmission driving section.

Preferably, the corrosion-resistant hard surrounding cylinder has a main cylinder portion in a flat shape in a shape of a round cake, and at least two B flow outlets are formed in a side portion of the main cylinder portion.

Preferably, a pressure transmission driving pipe extending horizontally outwards is further integrally connected to a side portion of the main cylinder portion, and a pressure transmission driving section is arranged in the pressure transmission driving pipe.

Preferably, the driving piston comprises a piston rod, a driving sealing plug connected to the head of the piston rod and moving in the pressure transmission driving section, and a driving handle connected to the tail of the driving sealing plug and located outside the pressure transmission driving section.

Preferably, the tail part of the depth gauge measuring bin body and the anti-corrosion outer side driving part are detachably connected together through an adapter sealing joint and guide the pressure transmission channel to the testing head of the pressure sensor.

The invention has the beneficial effects that: 1. the test head of the pressure sensor is well protected and does not directly contact with seawater, so that the service life of the pressure sensor can be effectively prolonged, and the service life of the depth gauge is prolonged.

2. The range of pressure transmission through deformation is enlarged, namely the pressed area is enlarged, and the whole seabed depth, namely the position from the sea surface on the earth to the deepest position of the seabed can be tested.

3. The structure of the equipment is optimized, the equipment can be applied to a seabed lander and a seabed long-term observation station, can be used on the seabed for a long time, and has no problem in one or two years.

4. The accuracy of detection is ensured and the high accuracy standard can be ensured for a long time.

5. The disassembly and assembly are convenient, and the use is more flexible.

Drawings

FIG. 1 is a schematic perspective view of one embodiment of a depth gauge in example 1;

FIG. 2 is a cross-sectional view of FIG. 2;

FIG. 3 is a schematic perspective view of the fixed peripheral frame of FIG. 1 with the added structure shown in an uninstalled state;

FIG. 4 is a schematic perspective view of the peripheral frame of FIG. 3 after installation;

FIG. 5 is a schematic perspective view of one embodiment of the depth gauge in example 2;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is a schematic perspective view of the structure of FIG. 5 in a disassembled state;

FIG. 8 is a schematic perspective view of another embodiment of the depth gauge in example 2;

fig. 9 is a perspective view of the main cylinder portion of the structure of fig. 8, shown partially cut away at the top.

Detailed Description

The following specific examples are given by way of illustration only and not by way of limitation, and it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made in the examples without inventive faculty, and yet still be protected by the scope of the claims.

Embodiment 1, as shown in fig. 1 to 4, a depth gauge for full sea depth comprises a depth gauge measuring bin 1 and a pressure transmission protecting bin 2, wherein the depth gauge measuring bin 1 is hermetically connected with the pressure transmission protecting bin 2, and the pressure transmission protecting bin 2 located outside the depth gauge measuring bin 1 is used for transmitting the pressure of sea water, so as to protect a pressure sensor 3 and perform more effective detection. Specifically, the pressure transmission protection storehouse body 2 has the peripheral anticorrosive outside drive part that can pass through deformation transmission pressure and the anticorrosive outside drive part is formed with receive the anticorrosive outside drive part drives the pressure transmission passageway 22 that can deform, and anticorrosive outside drive part is one and has extremely strong and the better surrounding structure of protectiveness of deformability, can introduce through the concrete example case at the back, compares in the present design can greatly promote the scope that detects through the transformation of pressure transmission passageway 22, more durable can also guarantee the reliability of precision. The pressure transmission channel 22 is filled with an anti-corrosion pressure transmission medium, and is filled with no gas as much as possible, because the gas is likely to cause dangerous accidents such as explosion in deep sea. The pressure transmission channel 22 is required to be communicated with the tail part of the depth gauge measuring cabin body 1, and of course, the pressure sensor 3 is required to be installed in the depth gauge measuring cabin body 1. The testing head 30 of the pressure sensor 3 is embedded at the tail part of the depth gauge measuring bin body 1 and can contact the anti-corrosion pressure transmission medium in the pressure transmission channel 22, so that the pressure sensor 3 needs to be installed and fixed at the position behind the depth gauge measuring bin body 1.

Specifically, what the storehouse body 1 was measured to the depth gauge also was the cylindrical structure that the axial extends in the front and back direction, it can adopt current structure, the storehouse body 1 is measured to the depth gauge includes the cylindrical main barrel 11 that extends around and the preceding end port sealing connection of cylindrical main barrel 11 has front end cover 12 and the back end port sealing connection of cylindrical main barrel 11 has back end cover 13, the inner space of cylindrical main barrel 11 is the inner space of the storehouse body 1 is measured to the depth gauge, cylindrical main barrel 11 can adopt current connected mode with front end cover 12's sealing connection, for example, the front end of cylindrical main barrel 11 and the peripheral part of front end cover 12 are locked through the locking bolt that alternates from beginning to end, back end cover 13 adopts the same mode sealing connection rear end position and as the afterbody of the storehouse body 1 is measured to the depth gauge, just so can guarantee the security of locking, also make things convenient for the dismouting. The central area of the front sealing end cover 12 is provided with a front jack 120 penetrating through the front and the back, a watertight socket 14 extending to the inner space of the cylindrical main cylinder 11 is inserted in the front jack 120 in a sealing manner, the watertight socket can be installed by adopting the existing front jack 120 through a threaded hole and screwing with the tail end of the watertight socket 14, the part of the watertight socket 14 close to the outer side of the cylindrical main cylinder 11 is used for being connected and communicated with an optoelectronic plug of communication equipment, the tail end of the watertight socket 14 is used for carrying out information transmission with a pressure sensor 3 arranged in the cylindrical main cylinder 11 in a wired or wireless manner, the pressure sensor 3 is arranged at the back position in the cylindrical main cylinder 11, but a testing head 30 of the pressure sensor 3 faces backwards as the existing method, the communication end of the pressure sensor 3 is at the front side, the pressure sensor 3 needs to be fixed in the cylindrical main cylinder 11, and the testing head 30 of the pressure sensor 3 is embedded into the back sealing end cover 13. A rear jack 130 penetrating through the front and rear is formed in the central region of the rear end cap 13, a front cylindrical mounting sleeve 131 extending forward and communicating with the rear jack 130 is integrally connected to the rear end cap 13 near the front side surface of the rear jack 130, a threaded structure may be provided in the front cylindrical mounting sleeve 131, so that the portion of the pressure sensor 3 located at the front side of the test head 30 and near the test head 30 may be screwed and fixed in the front cylindrical mounting sleeve 131, the test head 30 is embedded into the rear jack 130 rearward, a rear cylindrical mounting sleeve 132 extending rearward and communicating with the rear jack 130 is integrally connected to the rear end cap 13 near the rear side surface of the rear jack 130, and the rear cylindrical mounting sleeve 132 may be used for sealing connection with the pressure transfer protection cabin 2, which will be described later.

The cylindrical main cylinder body 11, the front sealing end cover 12, the rear sealing end cover 13, the locking bolt for locking and the like can be made of titanium alloy TC4 materials, and the locking bolt has the characteristics of high strength, pressure resistance and corrosion resistance. The watertight socket 14 and the pressure sensor 3 may be of conventional construction, and if a fixed connection is required, they may be threaded or perforated in their outer housing. Thus, the construction of the measuring portion of the depth gauge is substantially as described, and the most important design, and the more inventive portion, is the driving portion behind the measuring portion of the depth gauge, as described in more detail below.

In the driving part, namely the pressure transmission protection cabin body 2, after the anti-corrosion outer side driving part is hermetically connected with the depth gauge measuring cabin body 1, the pressure transmission channel 22 arranged in the anti-corrosion outer side driving part is communicated with the rear cylindrical mounting sleeve 132 and the rear jack 130, so that the anti-corrosion pressure transmission medium in the pressure transmission channel 22 can be ensured to contact the test head 30, and the pressure change of the anti-corrosion pressure transmission medium can be received, and the anti-corrosion pressure transmission medium is a deformable medium which can shrink or expand along with the pressure change. The embedded structure of the test head 30 and the rear insertion hole 130 is also required to be tightly attached, so that the corrosion-proof pressure transmission medium is prevented from flowing into the internal space region of the depth gauge measuring bin body 1 as much as possible. The anti-corrosion pressure transmission medium can adopt the existing insulating oil, so that the pressure can be transmitted through deformation, and the use safety can be ensured.

The specific structure of the driving part needs to be realized in various ways, and the embodiment first introduces one of them:

the corrosion-proof outside driving portion includes a corrosion-proof cortex enclosing bag 212a having an a flow outlet 211a, and the internal space of the corrosion-proof cortex enclosing bag 212a is the pressure transmission passage 22. The anti-corrosion cortical enclosing bag 212a is of an elastic anti-corrosion cortical bag body structure, the shape of the anti-corrosion cortical enclosing bag 212a can be an elliptical shape, a circular shape, a wax gourd shape, an egg body shape and other coating type appearance structures with a plurality of arc sections, the A outflow port 211a is communicated with the internal pressure transmission channel 22, in the embodiment, one A outflow port 211a is preferably arranged on the front side of the anti-corrosion cortical enclosing bag 212a, the A outflow port 211a is sealed with the tail part of the depth gauge measuring bin body 1, the part of the anti-corrosion cortical enclosing bag 212a, which is positioned at the A outflow port 211a, can be directly sleeved on the rear cylindrical mounting sleeve 132 and sealed by peripheral sealing and wrapping, and the like, so that the anti-corrosion pressure transmission medium in the pressure transmission channel 22 in the anti-corrosion cortical enclosing bag 212a can contact the test head 30, but because the cylindrical mounting sleeve 132 has a space in the sleeve and the rear half section is not fully embedded after the rear insertion hole 130 is axially inserted into the test head 30, certain space is left, the anti-corrosion transmission medium is filled to ensure the safety detection of the anti-corrosion cortical enclosing, and the anti-corrosion cortical enclosing gas is filled with the anti-corrosion cortical enclosing pressure transmission medium, so as much better as much as the detection precision is required. The pressure transmission channel 22 has a similar contour to the corrosion-protection cortical enclosing sac 212a, so that the corrosion-protection cortical enclosing sac 212a is configured like a balloon, has good elasticity in contraction, and can be enlarged and reduced well, so that the internal corrosion-protection pressure transmission medium has a deformation space for contraction and expansion, because the corrosion-protection pressure transmission medium is in an elastic and almost 360-degree enclosed environment. Just like the heart.

Through the structural improvement, the capability of contraction and expansion of the anti-corrosion pressure transmission medium is greatly improved, namely the range of pressure change is enlarged, all positions from the earth sea surface to the deepest part of the sea bottom can be detected, the implementation is simple, when the depth gauge measuring bin body 1 and the anti-corrosion outer side driving part are in the most original state at the sea surface, when the depth gauge measuring bin body gradually penetrates into the sea bottom, the pressure gradually increases, seawater presses the anti-corrosion cortex surrounding bag 212a to contract the anti-corrosion cortex surrounding bag, so that the compression of the pressure transmission channel 22 is reduced, the volume of the anti-corrosion pressure transmission medium is driven to contract, and the pressure is transmitted through the contact test head 30, so that a signal of the pressure detected by the test head 30 is fed back outwards through a communication part of the pressure sensor, namely, the signal is transmitted to an external control system through a watertight joint, and detection data are obtained through the operation of the control system and are displayed. Of course, the depth gauge down anticorrosive cortical-enclosing bag 212a compresses less, but rises as it expands more, and different depths can be tested as needed. It should be noted that the a outflow port 211a of the present embodiment 1 is provided with one, the depth gauge measuring cartridge 1 is also provided with one, the pressure transmission channel 22 is provided with only one outlet, namely the a outflow port 211a, the pressure transmission channel 22 is provided with a structure with one closed side and one open side, and then the pressure transmission channel passes through the rear cylindrical mounting sleeve 132 and the rear insertion hole 130 to the testing head 30, namely the pressure transmission channel 22 in the pressure transmission protection cartridge 2, and the channel in the transition part between the sealed part of the depth gauge measuring cartridge 1 and the pressure transmission protection cartridge 2 and the testing head 30 is a complete and sealed channel, the whole sealed channel is filled with the corrosion-proof pressure transmission medium, and only with the sealed channel structure, the pressure transmission channel 22 can transmit pressure by pressure deformation.

Preferably, the part of the anti-corrosion outer side driving portion, which is located at the a outflow port 211a, is hermetically and externally connected with a driving end a joint a used for being hermetically connected with the depth gauge measuring bin body 1, the anti-corrosion outer side driving portion can be used for mounting the anti-corrosion cortex surrounding bag 212a and the driving end a joint a in advance in a sealing manner through the driving end a joint a, the driving end a joint a is communicated with the pressure transmission channel 22 and can be used for being conveniently dismounted and connected with the depth gauge measuring bin body 1, the driving end a joint a can be an existing tubular joint or can be made of a titanium alloy TC4 material, a joint outlet of the driving end a joint a can be provided with threads on the inner side or the outer side and is provided with a conventional design such as a sealing gasket, so that the driving end a joint a can be directly mounted in a sealing and sleeving manner with the rear cylindrical mounting sleeve 132, and of course, the section of the driving end a joint a is added to the whole anti-corrosion pressure transmission medium filling channel. The design has the advantage that a radial oil filling hole can be formed in the middle area of the hard drive end A joint a, and a sealing oil cover is assembled, so that the whole channel can be filled with anti-corrosion pressure transmission media conveniently, and the embodiment is filled with insulating oil.

Furthermore, the periphery of the anti-corrosion cortical enclosing bag 212a comprises a fixed peripheral frame 213a and is arranged on the drive end a connector a, and the fixed peripheral frame 213a is provided with a drive hole 214a which is communicated with the inside and the outside so that seawater can contact the outer surface of the anti-corrosion cortical enclosing bag 212 a. The fixed peripheral frame 213a prevents the erosion protection cortical enclosing bag 212a from floating up and down to affect the accuracy of the test, because with the above-described configuration, the average depth of the erosion protection cortical enclosing bag 212a at each position is tested, and because the pressure is applied to each external position of the erosion protection cortical enclosing bag 212a, it is ensured as much as possible that this average depth coincides with the upper and lower average depth of the test head 30 or coincides therewith. Therefore, it is necessary to ensure the position stability of the low-density structure of the anti-corrosion cortical enclosing bag 212a, the fixed peripheral frame 213a may adopt a structure similar to a bird's nest, the material may adopt titanium alloy TC4, and may also adopt anti-corrosion hard plastics, etc., the driving hole 214a may be larger or larger, and a hard outer enclosing net structure is formed, so as to better ensure the position of the anti-corrosion cortical enclosing bag 212a and also effectively transmit pressure by contacting seawater. The overall external shape of the fixing peripheral frame 213a is preferably conformed to the anti-corrosion cortical enclosing bag 212a and is wrapped on the outside, but the fixing peripheral frame 213a is preferably a structure in which upper and lower halves are joined together and an abutting portion 2131a abutting against the driving end a joint a is preferably integrally connected to the upper and lower halves of the fixing peripheral frame 213a, and the abutting portion is fixedly attached to the driving end a joint a, and may be formed by a conventional locking structure such as a bolt or a hoop, and if the upper and lower halves are joined together more tightly, the two halves are integrally connected to the outer connecting plate 2132a at the joining position, and the connecting plates 2132a of the upper and lower halves of the fixing peripheral frame 213a are vertically opposed and locked by a bolt or the like, and the aforementioned locking and joining structures are preferably made of a hard anti-corrosion material. By providing a design that effectively ensures that the location of the anti-corrosive cortical enclosing balloon 212a is as level as possible in height with the location of the test head 30.

Embodiment 2, as shown in fig. 5 to 9, the difference between this embodiment and embodiment 1 is that another implementation manner is adopted for the driving part of embodiment 1, and a more optimized design is adopted, specifically: the anticorrosion outer side driving part comprises an anticorrosion hard surrounding cylinder 212B, the anticorrosion hard surrounding cylinder 212B is provided with a B outflow port 211B, a driving end B joint B used for being connected with the depth gauge measuring bin body 1 in a sealing and externally-connected mode is arranged at the position of the B outflow port 211B, the internal space of the anticorrosion hard surrounding cylinder 212B is the pressure transmission channel 22, the pressure transmission channel 22 of the anticorrosion hard surrounding cylinder 212B is provided with a section of cylindrical pressure transmission driving section 220, the pressure transmission driving section 220 is communicated to the outside from the inside of the anticorrosion hard surrounding cylinder 212B, and a driving piston 213B capable of moving in the pressure transmission driving section 220 to drive pressure change is hermetically inserted in the pressure transmission driving section 220 from the outside to the inside.

It can be seen that, in the scheme, not only the driving end B joint B needs to be abutted against the depth gauge measuring bin body 1, but also a more unique design is provided, namely, a straight-line pressure transmission driving section 220 is needed, and the anti-corrosion hard surrounding cylinder body 212B also becomes a hard cylinder body, unlike the elastic capsule structure in the embodiment 1, the cylinder body can be made of a titanium alloy TC4 material, the driving end B joint B can also be made of the material and connected to the cylinder body independently, and also can be directly connected to the cylinder body in an integrated manner, and the deformation in the embodiment is finished depending on what, namely, the piston type syringe structure. The scalability using a medium, i.e. insulating oil, is performed by a principle similar to injection, but is not operated by a person, but by seawater pressure changes. Similarly, when the pressure transmission channel 22 is filled with a medium, initially at sea surface, the head of the driving piston 213b should be in the pressure transmission driving section 220, which is understood as that the internal medium is under atmospheric pressure, and gradually descends after entering the sea bottom, and as the pressure of the sea water becomes higher, the driving piston 213b will advance into the pressure transmission driving section 220 to complete the compression deformation of the pressure transmission channel 22 and make the medium compressively deformed, and of course if moving upwards, the driving piston 213b will advance outwards through the expansion deformation of the medium, the pressure becomes smaller, and the measured depth becomes shallower. Here, since the corrosion-resistant hard surrounding cylinder 212b is a hard structure whose internal space of the body is substantially unchanged, the internal space of the corrosion-resistant hard surrounding cylinder 212b is a portion of the internal space where the pressure transmission passage 22 should be exactly understood as the portion where the corrosion-resistant pressure transmission medium is present at the time, that is, the portion where the portion is changed as the driving piston 213b moves. This kind of structure, it is more reliable to the intensity of structure, and the accuracy of position is better, and the precision can be higher relatively, is difficult to warp, and long-term high quality result of use can be maintained.

The driving piston 213b preferably comprises a piston rod 2131b, a driving sealing plug 2132b connected to the head of the piston rod 2131b and movable in the pressure transmission driving section 220, and a driving stem 2133b connected to the tail of the driving sealing plug 2132b and located outside the pressure transmission driving section 220. The piston rod 2131b may also be made of a titanium alloy TC4 material, the head of the piston rod 2131b is wrapped by the driving sealing plug 2132b, the driving sealing plug 2132b is made of an anti-corrosion rubber material and can be inserted into the pressure transmission driving section 220 in an interference manner, certainly, the driving sealing plug is not too tight, so that the piston can move and seawater can be prevented from entering the pressure transmission driving section 220, and the driving handle 2133b can be integrally connected to the tail of the piston rod 2131 b. The driving sealing plug 2132b is preferably cylindrical, and the piston rod 2131b may be the piston rod of available syringe, i.e. the middle part is cylindrical rod and the cross reinforcing rib structure is formed on the cylindrical rod, and the reinforcing rib can abut against the inner wall of the pressure transmitting driving section 220 to have better guidance. However, the driving handle 2133b may not be a structure on the syringe, but may be a spherical structure for application to the seabed, so that it can be driven under pressure well, and is not easy to bend and deform, etc., because the conventional circular-piece syringe handle is easily damaged in deep sea, which not only has a large pressure but also has a pressure difference between the upper and lower parts.

Under the design ideas, the driving part has more implementation modes, and the following effective cases are provided:

1. the corrosion-resistant hard surrounding cylinder 212B is designed into a whole section of cylindrical pressure transmission driving pipe 2121B, the inside of the pressure transmission driving pipe 2121B is the pressure transmission driving section 220 and extends in the horizontal direction, so the corrosion-resistant hard surrounding cylinder 212B can be a section of horizontally extending and flatly-laid cylindrical tube structure, the whole body is the pressure transmission driving section 220, one side port of the pressure transmission driving section is a B outflow port 211B and is provided with a driving end B joint B, the driving end B joint B is hermetically connected with the depth gauge measuring bin body 1, the connection mode can refer to embodiment 1, the structure including oil injection can be used, the driving piston 213B is inserted into the other side port part of the corrosion-resistant hard surrounding cylinder 212B, namely, the structure is used as a driving side, and the structure is also a depth gauge measuring bin body 1 and a driving part.

2. Based on the design 1, further optimization, it is to be understood that the pressures at different depths of the seabed are different, so the pressures received by the piston are different, especially when the upper and lower sizes are larger, and the piston, especially the driving sealing plug 2132b is more pressed upwards, especially in the deep sea, on one hand, upwards compression deformation is caused, the precision is influenced by long-time use, and the pressure transmission driving section 220 may not be sealed, so that seawater enters. In order to reduce the influence caused by the pressure difference between the upper part and the lower part, a supporting frame 2134b which extends to the pressure transmission driving pipe 2121b and is positioned outside the pressure transmission driving pipe 2121b is integrally connected to the piston rod 2131b near the driving handle 2133b, the supporting frame 2134b is made of the same hard material and is firmer, and a hard supporting and guiding wheel 2135b which can be supported at the lower part of the outer side of the pressure transmission driving section 220 is arranged on the supporting frame 2134b, so that the influence caused by the pressure difference between the upper part and the lower part of the piston after the piston enters the deep sea downwards can be effectively prevented, and the piston can be better guided. The support 2134b may be of an L-shaped configuration, although these configurations are also preferably corrosion resistant. The supporting frame 2134b is further required to be fixed with a shaft bracket 2136b for mounting the supporting frame 2134b, the shaft bracket 2136b can be integrally formed on the supporting frame 2134b and is arranged below the pressure transmission driving tube 2121b, the material of the shaft bracket 2136b can also be made of the same hard material, then a hard support guide wheel 2135b is mounted on the shaft bracket, the shape of the shaft bracket 2136b can be a U-shaped shape, and the hard support guide wheel 2135b can be of a shaping wheel structure with a wheel surface which is concave towards the axis in an arc shape and can be better attached to the outer wall of the pressure transmission driving tube 2121 b.

3. Normally, the driving parts are all designed as one, but the depth gauge measuring cartridge 1 side can be designed in a plurality of patterns, specifically:

the corrosion-resistant hard surrounding cylinder 212B has a main cylinder part 2120B in a flat shape in a discoid shape, at least two B outflow ports 211B are formed at a side portion of the main cylinder part 2120B, the inside of the corrosion-resistant hard surrounding cylinder 212B is also a discoid internal space, and if there are two B outflow ports 211B, it is preferable that the axial directions thereof are coincident and the B outflow ports are symmetrical with respect to the main cylinder part 2120B, and if there are three or more, they are distributed in a circumferential row, taking two as an example. The arrangement of claim 3 is different from the previous embodiment in that the main cylinder portion 2120B is used as the middle portion to observe, wherein the position of the B flow outlet 211B has two driving end B joints B which are horizontally arranged and laid, and the two driving end B joints B are respectively connected with the left and right depth gauge measuring bin bodies 1 in a sealing manner and are in left-right mirror symmetry. Even if the bin body is inclined, the data tested by the depth gauge measuring bin bodies 1 on the two sides can be averaged to measure the position of the upper center and the lower center. Of course, in order to maintain the position better, a pressure transmission driving pipe 2121b extending horizontally outward is integrally connected to a side of the main cylinder portion 2120b, and the pressure transmission driving section 220 is provided in the pressure transmission driving pipe 2121 b. When there are two joints B at the two driving ends B, the two pressure transmission driving pipes 2121B are also preferably two and extend axially along the horizontal line, and they are front and back mirror images of the main cylinder part 2120B, and the pressure transmission driving pipes 2121B are all provided with pistons for driving, and the positions of the pistons are ensured to be consistent with the horizontal position of the test head 30 as much as possible so as to accurately measure the current depth. The pressure transmission drive tube 2121B is constructed in accordance with the pressure transmission drive tube 2121B in the above-described embodiment 1, but in this embodiment, the drive end B joint B does not need to be connected, but is connected to the main cylinder portion 2120B, and the structure for reducing the influence of the differential pressure in the embodiment 2 can be applied to this embodiment as well.

In addition, as can be seen from the above-mentioned mode, the number of the depth gauge measuring bin bodies 1 may be two or more, and therefore, the same is applied to the embodiment 1, that is, the a outflow ports 211a are provided on both sides of the anti-corrosion cortex enclosing bag 212a, and one depth gauge measuring bin body 1 is connected to each side, and the depth gauge measuring bin body is symmetrical with respect to the anti-corrosion cortex enclosing bag 212a, but in the embodiment 1, the anti-corrosion cortex enclosing bag 212a is made of a cortical structure, and therefore, it is preferable to adopt a case of a hard structure having the fixed peripheral frame 213a and the drive end a joint a, and the fixed peripheral frame 213a is fixed to the drive end a joint a connected to the a outflow ports 211a on both mirror image sides, so that the structure of the entire depth gauge is relatively stable.

Embodiment 3, referring to the drawings of embodiments 1 and 2, this embodiment is a further improvement of the above embodiments, specifically:

the tail part of the depth gauge measuring bin body 1 and the anti-corrosion outer side driving part are detachably connected together through a switching sealing joint 4 and guide a pressure transmission channel 22 to a testing head 30 of the pressure sensor 3, the switching sealing joint 4 adopts the existing joint with two butted ends, and can be made of anti-corrosion high-strength titanium alloy materials. That is, the depth gauge measuring cabin body 1 is connected at one end of the switching sealing joint 4, and the other end can be used as a test end to be connected with a test device. However, the connection is to be restored to the anti-corrosion outside driving part in the normal use state, in addition, when the switching sealing joint 4 is connected, the switching sealing joint 4 can be connected with the rear cylindrical mounting sleeve 132 and the driving end a joint a or the rear cylindrical mounting sleeve 132 and the driving end B joint B in a sealing manner, the butt joint of the joints can be realized through the existing manners such as threaded connection, and sealing structures such as sealing rings can be additionally arranged. Since the adapter sealing nipple 4 is also on the way of the pressure transmission channel 22 to the test head 30, the adapter sealing nipple 4 is also filled with a medium when used at sea, and in the case of an adapter sealing nipple 4, oil can also be filled into the adapter sealing nipple 4 and an oil cap can be provided.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A full-sea depth gauge is characterized in that: the pressure transmission type oil-gas pressure measuring cabin comprises a depth meter measuring cabin body (1) and a pressure transmission protecting cabin body (2), the depth meter measuring cabin body (1) and the pressure transmission protecting cabin body (2) are connected in a sealing mode, the pressure transmission protecting cabin body (2) is provided with a peripheral anti-corrosion outer side driving part capable of transmitting pressure through deformation and a pressure transmission channel (22) which is formed in the anti-corrosion outer side driving part and can be deformed by the driving of the anti-corrosion outer side driving part, the pressure transmission channel (22) leads to the tail part of the depth meter measuring cabin body (1), anti-corrosion pressure transmission media are filled in the pressure transmission channel (22), a pressure sensor (3) is installed in the depth meter measuring cabin body (1), a testing head (30) of the pressure sensor (3) is embedded in the tail part of the depth meter measuring cabin body (1) and can be in contact with the anti-corrosion pressure transmission media in the pressure transmission channel (22), the anti-corrosion pressure transmission media are insulating oil, the anti-corrosion outer side driving part comprises an anti-corrosion hard surrounding cylinder body (212B), the anti-corrosion hard surrounding cylinder body (212B) is provided with a B and is located at the outflow port (211B) of the driving end, the anti-corrosion hard surrounding cylinder body (212B) and is connected with the anti-corrosion pressure transmission channel (212B) and is used for surrounding the anti-corrosion pressure transmission cylinder body (212B), the anti-corrosion pressure transmission channel (212B), the anti-corrosion sealed space surrounding the anti-corrosion pressure transmission channel B), and the anti-corrosion pressure transmission cylinder body (212B) and is connected with the anti-corrosion sealed external pressure transmission channel (212B) and the anti-corrosion sealed external pressure transmission channel (2), the anti-corrosion pressure transmission cylinder body (2) and the anti-corrosion pressure transmission channel (2) and the anti-corrosion sealed cylinder body (B) and the anti-corrosion pressure transmission channel (B) surrounding cylinder body (B) surrounding the anti-corrosion pressure transmission cylinder body (2) and is connected with the anti-corrosion pressure transmission cylinder body (2) and the anti-corrosion sealed external pressure transmission channel (B) surrounding cylinder body (22) The pressure transmission driving section (220) is cylindrical, the pressure transmission driving section (220) is communicated with the outside from the inside of an anti-corrosion hard surrounding cylinder body (212B), a driving piston (213B) which can move in the pressure transmission driving section (220) to drive pressure change is hermetically inserted in the pressure transmission driving section (220) from the outside to the inside, the anti-corrosion hard surrounding cylinder body (212B) is provided with a main cylinder body part (2120B) which is in a round cake shape and in a flat shape, and the side part of the main cylinder body part (2120B) is provided with at least more than two B outflow ports (211B).

2. The full-sea depth gauge according to claim 1, wherein: the side of the main cylinder part (2120 b) is also integrally connected with a pressure transmission driving pipe (2121 b) which extends outwards in a horizontal shape, and a pressure transmission driving section (220) is arranged in the pressure transmission driving pipe (2121 b).

3. The full-sea depth gauge according to claim 1, wherein: the driving piston (213 b) comprises a piston rod (2131 b), a driving sealing plug (2132 b) which is connected with the head part of the piston rod (2131 b) and moves in the pressure transmission driving section (220), and a driving handle (2133 b) which is connected with the tail part of the driving sealing plug (2132 b) and is positioned outside the pressure transmission driving section (220).

4. The full-sea depth gauge according to claim 1, wherein: the tail part of the depth gauge measuring cabin body (1) and the anti-corrosion outer side driving part are detachably connected together through a transfer sealing joint (4) and guide a pressure transmission channel (22) to a testing head (30) of the pressure sensor (3).