CN215339433U - Pore water pressure sensor - Google Patents
Pore water pressure sensor Download PDFInfo
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- CN215339433U CN215339433U CN202121592271.2U CN202121592271U CN215339433U CN 215339433 U CN215339433 U CN 215339433U CN 202121592271 U CN202121592271 U CN 202121592271U CN 215339433 U CN215339433 U CN 215339433U
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- pressure sensor
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- pore water
- water pressure
- protective outer
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Abstract
The utility model discloses a pore water pressure sensor, which comprises a hollow protective outer cylinder and a pressure sensor body arranged in the inner cavity of the protective outer cylinder; at least one mounting strip is arranged on the outer wall of the pressure sensor body; wherein, the one end of pressure sensor body is fixedly connected with metal pole and the plug that is used for transmitting data signal along the length direction of protection urceolus in proper order, and the one end of keeping away from the plug of protection urceolus is for seeping water the end, and the one end that is close to the plug of protection urceolus is the power end, and the through-hole that supplies plug and metal pole to pass through is seted up at the middle part that the side that the protection urceolus is close to the power end. According to the utility model, through the arrangement of the protective outer cylinder, the mounting bar and the rubber bottom bar, the protection performance of the pressure sensor body can be improved, the stability of the sensor in the transportation process is also improved, and the failure of the pressure sensor body is prevented; through setting up metal pole and quartzy plug, effectively solved the sensor wire overlength and be difficult to the problem of accomodating.
Description
Technical Field
The utility model relates to the technical field of civil engineering, in particular to a pore water pressure sensor.
Background
The pore water pressure refers to the pressure of underground water in soil or rock, and is divided into static pore water pressure and hyperstatic pore water pressure, which act between particles or pores, and for high-permeability soil under the condition of no water flow, the pore water pressure is approximately equal to the hydrostatic pressure under the action of no water flow, and for high-permeability soil under the condition of water flow, the calculation of the pore water pressure is complex. The pore water pressure sensor is mainly used for testing the size and the distribution of the pore water pressure, however, the existing pore water pressure sensor has some defects, and the existing pore water pressure sensor mostly needs to use a sleeve when in use so as to form certain protection. Simultaneously, adopt the wire to connect between current pore water pressure sensor and the equipment instrument, there is the problem that the wire overlength is difficult to accomodate to when pore water pressure sensor damaged, it is also comparatively troublesome to change.
In view of the above, it is necessary to provide a pore water pressure sensor to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a pore water pressure sensor, and aims to solve the problems that the existing pore water pressure sensor is weak in protection, low in stability in the transportation process and difficult to store due to too long lead.
In order to achieve the purpose, the utility model provides a pore water pressure sensor, which comprises a hollow protective outer cylinder and a pressure sensor body arranged in the inner cavity of the protective outer cylinder; the outer wall of the pressure sensor body is provided with at least one mounting strip; wherein, the one end of pressure sensor body is followed the length direction of protection urceolus fixedly connected with in proper order is used for transmitting data signal's metal pole and plug, keeping away from of protection urceolus the one end of plug is the infiltration end, being close to of protection urceolus the one end of plug is the power end, the protection urceolus is close to the confession has been seted up at the middle part of the side of power end the plug with the through-hole that the metal pole passes through.
Preferably, the water seepage end of the protective outer cylinder is in a pointed conical shape, and the conical water seepage end and the protective outer cylinder are integrally arranged.
Preferably, a waterproof membrane is fixedly connected to a position, close to the plug, of the inner cavity of the protective outer cylinder, and a through hole matched with the metal rod is formed in the middle of the waterproof membrane so that the metal rod can penetrate through the through hole.
Preferably, one end of the protection outer cylinder, which is close to the plug, is also movably connected with a sealing plate, and the middle part of the sealing plate is provided with the through hole.
Preferably, the sealing plate includes relative left side sealing plate and the right side sealing plate that sets up, the left side sealing plate with the side that the right side sealing plate meets is provided with at least two sets of locating component, locating component includes reference column and locating hole.
Preferably, the back surfaces of the left side sealing plate and the right side sealing plate are both fixedly provided with rotary buckling strips, and the rotary buckling strips are movably connected with the protection outer cylinder.
Preferably, still including locating the rubber bottom strip of the outer wall of mounting bar, the outside of rubber bottom strip with protection urceolus fixed connection.
Preferably, the outer wall of the protective outer cylinder is provided with a plurality of permeation holes.
Preferably, the plug is a crystal plug.
Preferably, the protective outer cylinder and the conical water seepage end are both made of anti-corrosion aluminum alloy materials.
Compared with the prior art, the pore water pressure sensor provided by the utility model has the following beneficial effects:
the utility model provides a pore water pressure sensor which comprises a hollow protective outer cylinder and a pressure sensor body arranged in an inner cavity of the protective outer cylinder; at least one mounting strip is arranged on the outer wall of the pressure sensor body; wherein, the one end of pressure sensor body is fixedly connected with metal pole and the plug that is used for transmitting data signal along the length direction of protection urceolus in proper order, and the one end of keeping away from the plug of protection urceolus is for seeping water the end, and the one end that is close to the plug of protection urceolus is the power end, and the through-hole that supplies plug and metal pole to pass through is seted up at the middle part that the side that the protection urceolus is close to the power end. According to the utility model, through the arrangement of the protective outer cylinder, the mounting bar and the rubber bottom bar, the protection performance of the pressure sensor body can be improved, the stability of the sensor in the transportation process is also improved, and the failure of the pressure sensor body is prevented; through setting up metal pole and quartzy plug, effectively solved the sensor wire overlength and be difficult to the problem of accomodating.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of a pore water pressure sensor in one embodiment of the utility model;
FIG. 2 is a schematic diagram of the internal structure of a pore water pressure sensor in one embodiment of the present invention;
FIG. 3 is a schematic view of a seal plate according to an embodiment of the present invention;
the reference numbers illustrate:
a pore water pressure sensor 100;
a pressure sensor body 200; a metal rod 210; a plug 220; a waterproof film 230;
a mounting bar 300;
a rubber bottom strip 400;
a protection outer cylinder 500; a water-permeable end 510; a power source terminal 520; a through hole 530; penetration hole 540
A sealing plate 600; a left side sealing plate 610; a positioning post 611; a right side sealing plate 620; the buckle 630 is rotated.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Referring to fig. 1-3, the present invention provides a pore water pressure sensor 100. The pore water pressure sensor 100 comprises a hollow protective outer cylinder 500 and a pressure sensor body 200 arranged in the protective outer cylinder 500; at least one mounting bar 300 is arranged on the outer wall of the pressure sensor body 200; one end of the pressure sensor body 200 is fixedly connected with a metal rod 210 and a plug 220 which are used for transmitting data signals in sequence along the length direction of the protective outer cylinder 500, one end of the protective outer cylinder 500, which is far away from the plug 220, is a water seepage end 510, one end of the protective outer cylinder 500, which is close to the plug 220, is a power supply end 520, and a through hole 530 for the plug 220 and the metal rod 210 to pass through is formed in the middle of the side surface of the protective outer cylinder 500, which is close to the power supply end 520.
It is worth noting that the pressure sensor body 200 is arranged in the middle of the inner cavity of the protective outer cylinder 500, one end of the metal rod 210 is connected with the pressure sensor, the other end of the metal rod 210 is connected with the plug 220, the metal rod 210 is used for transmitting data signals, when the pressure sensor is used, the connection part of the plug 220 and a lead (not shown in the figure) is connected, the other side of the lead is connected with a detection device (not shown in the figure), the plug 220 and the lead are connected with the pressure sensor body 200 to enable the pressure sensor body 200 to be connected with the detection device, the pore water pressure sensor 100 is arranged at a pore to be detected, pressure detection is carried out through the pressure sensor body 200, the pressure sensor body 200 transmits the detected data to the detection device through the metal rod 210 and the plug 220, and then the pressure information at the pore can be obtained through analysis of the detection device. Simultaneously, through setting up metal pole 210 and plug 220, can avoid the problem that the wire overlength that traditional sensor exists is difficult to accomodate, conveniently accomodate more and carry.
Referring to fig. 2 again, the outer protective cylinder 500 is disposed on the outermost side to play a protective role, the water seepage end 510 of the outer protective cylinder 500 is provided with a permeable stone, the pore water pressure sensor 100 is placed in soil to allow pore water to enter, pressure can be measured through the pressure sensor body 200, the mounting bar 300 is fixedly connected to the outer wall of the pressure sensor body 200, one or more mounting bars 300 can be disposed, the mounting bar 300 can protect the pressure sensor body 200, and the pressure sensor body 200 is prevented from being damaged and losing efficacy. In addition, a through hole 530 is formed in the middle of the side of the protective outer cylinder 500 close to the power end 520, so that the metal rod 210 and the plug 220 can pass through the through hole and be connected with the connection part of the wire.
In a preferred embodiment of the present invention, the water penetration end 510 of the shield outer cylinder 500 is a pointed conical shape, and the conical water penetration end 510 and the shield outer cylinder 500 are integrally provided. Specifically, the infiltration end 510 of the protection outer cylinder 500 is set to be in a conical shape, so that the resistance of the pore water pressure sensor 100 can be reduced, the disturbance of the pore water pressure sensor 100 to undisturbed soil is reduced, the measurement of the pore water pressure in the soil can be more accurate, and the integration of the infiltration end 510 and the protection outer cylinder 500 enhances the protection performance.
Further, a waterproof membrane 230 is fixedly connected to a position of the inner cavity of the protective outer cylinder 500, which is close to the plug 220, and a through hole (not shown) matched with the metal rod 210 is formed in the middle of the waterproof membrane 230, so that the metal rod 210 can pass through the through hole. It should be understood that the position of the waterproof membrane 230 is arranged between the pressure sensor body 200 and the plug 220, a through hole for the metal rod 210 to pass through is formed in the middle of the waterproof membrane 230, the waterproof membrane 230 has waterproof, dustproof, breathable and pressure-relief performances, waterproofness can be improved, internal and external pressures of the sensor can be rapidly balanced through micropores in the waterproof membrane 230, the waterproof membrane 230 also has good effects of moisture protection, corrosion protection, moisture resistance, temperature resistance and the like, water seepage at a joint can be prevented from causing failure of the sensor, and the pore water pressure sensor 100 can be efficiently and stably used.
As a preferred embodiment of the present invention, a sealing plate 600 is further movably connected to one end of the protective outer cylinder 500 close to the plug 220, and the middle of the sealing plate 600 is provided with the through hole 530. The sealing plate 600 includes a left sealing plate 610 and a right sealing plate 620 disposed opposite to each other, and at least two sets of positioning assemblies (not shown) are disposed on the side of the left sealing plate 610 contacting the right sealing plate 620, and each positioning assembly includes a positioning column 611 and a positioning hole (not shown). It should be understood by those skilled in the art that the sealing plate 600 is disposed to prevent the pore pressure sensor from water seepage and causing failure, the sealing plate 600 is disposed to be opposite to the left sealing plate 610 and the right sealing plate 620, so that the installation is more convenient, the positioning assembly is disposed at intervals on the side where the left sealing plate 610 meets the right sealing plate 620, the positioning assembly includes the positioning column 611 and the positioning hole, the positioning column 611 may be disposed on the left sealing plate 610 or the right sealing plate 620, in this embodiment, the positioning posts 611 are disposed on the side of the left sealing plate 610 that meets the right sealing plate 620, the positioning holes are correspondingly formed on the side surfaces of the right sealing plate 620, so that the left sealing plate 610 and the right sealing plate 620 can be quickly positioned and installed, meanwhile, the positioning column 611 and the positioning hole are matched to enable the assembly to be convenient, and the stability is good after the installation.
Further, the back surfaces of the left sealing plate 610 and the right sealing plate 620 are both fixedly provided with a rotary buckle strip 630, and the rotary buckle strip 630 is movably connected with the protective outer cylinder 500. Specifically, sealing plate 600 and protection urceolus 500 swing joint, swing joint's mode can set up according to actual need, adopts the mode of rotatory lock connection in this embodiment, and the setting of rotatory profile 630 is convenient for left side sealing plate 610 and right side sealing plate 620 and protection urceolus 500 to install fast and dismantle, and it is more convenient to use.
In a preferred embodiment of the present invention, the mounting bar further includes a rubber bottom strip 400 disposed outside the mounting bar 300, and the outside of the rubber bottom strip 400 is fixedly connected to the protective outer cylinder 500. It should be understood by those skilled in the art that the rubber bottom strip 400 is disposed between the mounting strip 300 and the protective outer cylinder 500, and the rubber bottom strip 400 can generate contact pressure by using elasticity of the body structure and the surface of the assembly member in contact therewith, thereby improving waterproof performance, effectively preventing pore water from flowing into the pressure sensor body 200, and simultaneously improving stability of the pressure sensor body 200 during transportation.
As a preferred embodiment of the present invention, the outer wall of the protective outer cylinder 500 is provided with a plurality of penetration holes 540, and the plug 220 is a crystal plug 220. It should be understood that the penetration holes 540 are provided to allow for the entry of pore water, to facilitate water pressure penetration, to facilitate measurement of pore water pressure by the pressure sensor body 200, and the like. Specifically, the type of the plug 220 can be selected according to actual needs, and preferably, the crystal plug 220 is selected in the present embodiment, the crystal plug 220 can be inserted in a fixed direction and automatically prevented from falling off, the price is low, the water resistance of the crystal plug 220 is high, and water seepage and the like can be prevented when the crystal plug is connected with a wire.
Further, the protective outer cylinder 500 and the water penetration end 510 are both made of an anti-corrosion aluminum alloy material. It should be understood that the materials of the protective outer cylinder 500 and the water penetration end 510 can be selected according to actual needs and use environments, and an anti-corrosion aluminum alloy material is adopted in this embodiment, and the anti-corrosion aluminum alloy material has good processing performance, high sealing performance, high water resistance, high durability, and high corrosion resistance, and can better protect the pressure sensor body 200 as an outermost protective layer.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are encompassed by the scope of the present invention.
Claims (10)
1. A pore water pressure sensor, characterized by: the pressure sensor comprises a hollow protective outer cylinder and a pressure sensor body arranged in an inner cavity of the protective outer cylinder; the outer wall of the pressure sensor body is provided with at least one mounting strip; wherein, the one end of pressure sensor body is followed the length direction of protection urceolus fixedly connected with in proper order is used for transmitting data signal's metal pole and plug, keeping away from of protection urceolus the one end of plug is the infiltration end, being close to of protection urceolus the one end of plug is the power end, the protection urceolus is close to the confession has been seted up at the middle part of the side of power end the plug with the through-hole that the metal pole passes through.
2. The pore water pressure sensor according to claim 1, wherein: the water seepage end of the protective outer cylinder is in a pointed conical shape, and the conical water seepage end and the protective outer cylinder are integrally arranged.
3. The pore water pressure sensor according to claim 1, wherein: the position, close to the plug, of the inner cavity of the protective outer barrel is fixedly connected with a waterproof membrane, and a through hole matched with the metal rod is formed in the middle of the waterproof membrane so that the metal rod can penetrate through the through hole.
4. The pore water pressure sensor according to claim 1, wherein: one end of the protective outer barrel, which is close to the plug, is also movably connected with a sealing plate, and the middle part of the sealing plate is provided with the through hole.
5. The pore water pressure sensor according to claim 4, wherein: the closing plate is including the left side closing plate and the right side closing plate that set up relatively, the left side closing plate with the side that the right side closing plate meets is provided with at least two sets of locating component, locating component includes reference column and locating hole.
6. The pore water pressure sensor according to claim 5, wherein: the back of the left side sealing plate and the back of the right side sealing plate are both fixedly provided with rotary buckling strips, and the rotary buckling strips are movably connected with the protective outer barrel.
7. The pore water pressure sensor according to claim 1, wherein: still including locating the rubber base strip of the outer wall of mounting bar, the outside of rubber base strip with protection urceolus fixed connection.
8. The pore water pressure sensor according to any one of claims 1 to 6, wherein: the outer wall of the protective outer cylinder is provided with a plurality of permeation holes.
9. The pore water pressure sensor according to claim 1, wherein: the plug is a crystal plug.
10. The pore water pressure sensor according to claim 2, wherein: the protective outer cylinder and the conical water seepage end are both made of anti-corrosion aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121592271.2U CN215339433U (en) | 2021-07-14 | 2021-07-14 | Pore water pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121592271.2U CN215339433U (en) | 2021-07-14 | 2021-07-14 | Pore water pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215339433U true CN215339433U (en) | 2021-12-28 |
Family
ID=79566948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121592271.2U Active CN215339433U (en) | 2021-07-14 | 2021-07-14 | Pore water pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215339433U (en) |
-
2021
- 2021-07-14 CN CN202121592271.2U patent/CN215339433U/en active Active
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