Osmotic pressure monitoring device

Abstract

The utility model relates to the technical field of osmotic pressure monitoring, in particular to an osmotic pressure monitoring device. The embodiment of the utility model provides an osmotic pressure monitoring device. The osmotic pressure monitoring device comprises a protection tube, a protection unit and an osmometer, the protection pipe is provided with a protection cavity and a first water inlet hole communicated with the protection cavity, the protection unit is installed in the protection cavity, the protection unit comprises a driving assembly and a protection cover which are connected, and the protection cover is provided with a plurality of second water inlet holes communicated with the protection cavity; the osmometer is installed in the protection cavity and provided with a pressure measuring hole, and the pressure measuring hole is located in the protection cover. Under the condition that water enters the first water inlet holes, the driving assembly can drive the protective cover to extend out of the protective pipe under the action of water pressure, so that the multiple second water inlet holes are exposed out of the protective pipe. According to the osmotic pressure monitoring device provided by the invention, when the osmotic pressure monitoring device is lowered from the earth surface to the deep underground water, under the isolation of the protection pipe, shallow sand and mud can be effectively prevented from entering the protection cover to influence the detection of the osmometer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seepage pressure monitoring, especially to a seepage pressure monitoring device. BACKGROUND

[0002] It is particularly important to monitor the foundation during dam body construction. For example, sudden cracking and collapse of the dam seriously affect the construction safety of the dam body. Changes in interstitial water pressure are precursors of changes in the stratum. By installing a seepage pressure gauge in a monitoring hole of deep groundwater, the dynamic of the soil body can be mastered, and important data basis for construction control and regional stability can be provided to ensure construction safety and prevent disasters such as landslides and geological subsidence.

[0003] In related technologies, during the lowering of the seepage pressure gauge from the surface to the deep groundwater, a protective member is provided to protect the seepage pressure gauge from the sand and stone impurities mixed in the seepage water. Although the protective member can block the sand and stone impurities, the shallow sand and mud in the shallow groundwater can still enter the interior of the protective member, affecting the monitoring of the seepage pressure gauge. SUMMARY

[0004] The present application provides a seepage pressure monitoring device, which solves the technical problem that the shallow sand and mud in the shallow groundwater in related technologies can enter the interior of the protective member, affecting the monitoring of the seepage pressure gauge.

[0005] The present application provides a seepage pressure monitoring device, which solves the technical problem that the shallow sand and mud in the shallow groundwater in related technologies can enter the interior of the protective member, affecting the monitoring of the seepage pressure gauge.

[0006] The protective tube has a protection cavity and a first water inlet hole communicating with the protection cavity;

[0007] The protective unit is installed in the protection cavity, and the protective unit includes a driving assembly and a protective cover connected to each other, and the protective cover is provided with a plurality of second water inlet holes communicating with the protection cavity;

[0008] The seepage pressure gauge is installed in the protection cavity, and the seepage pressure gauge has a pressure measuring hole, and the pressure measuring hole is located in the protective cover;

[0009] When water enters the first water inlet hole, the driving assembly can drive the protective cover to extend out of the protective tube under the action of water pressure, so that a plurality of second water inlet holes are exposed to the protective tube.

[0010] In some embodiments, the driving assembly includes a fixed ring, a movable ring, and an elastic member, the elastic member connects the fixed ring and the movable ring, the fixed ring is fixedly sleeved on the seepage pressure gauge, the movable ring is movably sleeved on the seepage pressure gauge, and the protective cover is connected to the movable ring.

[0011] In some embodiments, the elastic member comprises a plurality of springs, and the springs are arranged at intervals around the central axis of the fixed ring.

[0012] In some embodiments, the first water inlet hole is arranged on the side wall of the protection tube and corresponds to the elastic member.

[0013] In some embodiments, one end of the protection tube has an opening, and the protective cover is movably arranged in the opening.

[0014] In some embodiments, the protection cavity is provided with a positioning block on the inner wall of the end away from the opening, and the osmometer is provided with a positioning groove on the outer surface, and the positioning block is clamped in the positioning groove.

[0015] In some embodiments, the protection tube further comprises a sealing ring, and the sealing ring is installed in the positioning groove, and the positioning block contacts the sealing ring.

[0016] In some embodiments, the protection tube comprises a tube body and an end cover, the tube body and the end cover are connected to form the protection cavity, the opening is arranged on the tube body, the end cover is arranged on the end of the tube body away from the opening, and the osmometer has a cable, and the cable is arranged in the end cover.

[0017] In some embodiments, the osmometer has a wiring terminal, the cable is connected to the wiring terminal, the end cover is provided with a first mounting groove, and the wiring terminal is clamped in the first mounting groove.

[0018] In some embodiments, the protective cover is provided with a second mounting groove, and the second mounting groove movably surrounds the part of the osmometer provided with the pressure measuring hole.

[0019] The application has the following beneficial effects:

[0020] In the osmotic pressure monitoring device provided by the application, the protective unit is installed in the protection cavity, so that during the lowering of the osmotic pressure monitoring device from the ground to the deep underground water, the shallow sand and mud can be effectively prevented from entering the protective cover and affecting the detection of the osmometer under the isolation of the protection tube. When the osmotic pressure monitoring device is installed to a certain depth of underground water, the underground water enters the protection cavity through the first water inlet hole, and the protective cover is driven out of the protection tube by the driving assembly under the action of water pressure, so that the plurality of second water inlet holes are exposed to the protection tube, and the underground water can enter the protective cover through the plurality of second water inlet holes, so that the pressure measuring hole of the osmometer can perform the air gap water pressure detection process. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described below are only some embodiments of the present application.

[0022] Figure 1 A structural schematic diagram of the osmotic pressure monitoring device is shown.

[0023] Figure 2 An exploded view of Figure 1 is shown.

[0024] Figure 3 An exploded view of Figure 2 the protection unit is shown.

[0025] Explanation of reference signs:

[0026] 10 - osmotic pressure monitoring device, 100 - protection tube, 110 - tube body, 111 - first water inlet hole, 120 - end cover, 121 - sealing sleeve, 122 - first installation groove, 130 - protection cavity, 131 - positioning block, 140 - sealing ring, 200 - protection unit, 210 - driving assembly, 211 - fixed ring, 212 - movable ring, 213 - elastic piece, 220 - protection cover, 221 - second water inlet hole, 222 - second installation groove, 300 - osmometer, 310 - pressure measuring hole, 320 - wiring terminal, 330 - cable, 340 - positioning groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0029] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should be understood broadly, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirect connection through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0030] In addition, in the utility model, the description such as "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0031] Please refer to Figure 1 And Figure 2 The embodiment of the application provides a kind of osmotic pressure monitoring device 10, including protection tube 100, protection unit 200 and osmometer 300.

[0032] Protection tube 100 has protection cavity 130 and the first water inlet hole 111 that communicates with protection cavity 130, protection unit 200 is installed in protection cavity 130, and protection unit 200 includes connected drive assembly 210 and protection cover 220, and protection cover 220 is equipped with multiple second water inlet holes 221 that communicate with protection cavity 130;Osmometer 300 is installed in protection cavity 130, and osmometer 300 has pressure measuring hole 310, and pressure measuring hole 310 is located in protection cover 220.

[0033] Wherein, in the case of water inlet hole 111, drive assembly 210 can drive protection cover 220 to extend outside protection tube 100 under the action of water pressure, so that multiple second water inlet holes 221 are exposed to protection tube 100.

[0034] Protection tube 100 has protection cavity 130, and osmometer 300 is installed in protection cavity 130, i.e. protection tube 100 is the main component for protecting and installing osmometer 300, in the use process of osmometer 300, protection tube 100 can isolate most of impurities underground, and as far as possible guarantee the accurate detection of osmometer 300. Osmometer 300 has pressure measuring hole 310, and pressure measuring hole 310 is used for detecting air-void water pressure.

[0035] The protective cover 220 is provided with a plurality of second water inlets 221 which are in communication with the protection cavity 130, and the plurality of second water inlets 221 are uniformly distributed on the peripheral surface of the protective cover 220. In general cases, the protective cover 220 is arranged in the protection cavity 130, and the second water inlets 221 are also located in the protection cavity 130. Only when the first water inlet 111 is in the water inlet condition, the driving assembly 210 drives the protective cover 220 to extend out of the protection pipe 100 under the action of the water pressure, so that the plurality of second water inlets 221 are exposed to the protection pipe 100.

[0036] In the osmotic pressure monitoring device 10 provided by the embodiment, the protection unit 200 is arranged in the protection cavity 130, so that during the process of lowering the osmotic pressure monitoring device 10 from the ground surface to the deep underground water, the shallow sand and mud can be effectively prevented from entering the protective cover 220 to affect the detection of the osmometer 300 under the isolation of the protection pipe 100. When the osmotic pressure monitoring device 10 is arranged in the deep underground water, the underground water enters the protection cavity 130 through the first water inlet 111, and the driving assembly 210 drives the protective cover 220 to extend out of the protection pipe 100 under the action of the water pressure, so that the plurality of second water inlets 221 are exposed to the protection pipe 100, and the underground water can enter the protective cover 220 through the plurality of second water inlets 221, so that the pressure measuring hole 310 of the osmometer 300 can perform the air gap water pressure detection process.

[0037] That is, the osmotic pressure monitoring device 10 provided by the embodiment ingeniously uses the water pressure of the underground water as the driving force to change the state of the protective cover 220, so that the detection of the osmometer 300 in the deep underground water can be ensured, and the shallow sand and mud during the lowering process can be effectively prevented from entering the protective cover 220 to affect the detection of the osmometer 300.

[0038] Please refer to Figure 2 and Figure 3 In some embodiments, the driving assembly 210 includes a fixed ring 211, a movable ring 212 and an elastic member 213, the elastic member 213 connects the fixed ring 211 and the movable ring 212, the fixed ring 211 is fixedly sleeved on the osmometer 300, the movable ring 212 is movably sleeved on the osmometer 300, and the protective cover 220 is connected to the movable ring 212.

[0039] Since the elastic member 213 connects the fixed ring 211 and the movable ring 212, the fixed ring 211 is fixedly sleeved on the osmometer 300, and the movable ring 212 is movably sleeved on the osmometer 300, the movable ring 212 can move on the osmometer 300 relative to the fixed ring 211. When the underground water enters the protection cavity 130 through the first water inlet 111, the movable ring 212 can be driven to move on the osmometer 300 relative to the fixed ring 211 under the action of the water pressure. Since the protective cover 220 is connected to the movable ring 212, the protective cover 220 can extend out of the protection pipe 100.

[0040] Specifically, the elastic member 213 comprises a plurality of springs which are arranged at intervals around the central axis of the fixed ring 211.

[0041] In some embodiments, the first water inlet hole 111 is arranged on the side wall of the protection pipe 100 and corresponds to the elastic member 213.

[0042] That is, the first water inlet hole 111 is located between the fixed ring 211 and the movable ring 212, so that the water entering from the first water inlet hole 111 can first enter the part of the inner cavity between the fixed ring 211 and the movable ring 212, so that the water pressure of the part of the inner cavity increases, forcing the movable ring 212 to move, so as to extend the protective cover 220 out of the protection pipe 100, thereby improving the driving efficiency of the protective cover 220.

[0043] Please refer to Figure 1 and Figure 2 In some embodiments, one end of the protection pipe 100 has an opening, and the protective cover 220 is movably arranged in the opening.

[0044] The protection pipe 100 has two ends along the length direction thereof, and the opening is arranged at one of the two ends, and the protective cover 220 is movably arranged in the opening, so that the protective cover 220 can be extended out of or retracted into the protection cavity 130 through the opening.

[0045] Please refer to Figure 2 In some embodiments, the inner wall of the end of the protection cavity 130 away from the opening is provided with a positioning block 131, and the outer surface of the osmometer 300 is provided with a positioning groove 340, and the positioning block 131 is clamped in the positioning groove 340.

[0046] Since the positioning block 131 is clamped in the positioning groove 340, the fixed installation of the osmometer 300 in the protection cavity 130 can be achieved. Specifically, the positioning block 131 can be annular, and correspondingly, the positioning groove 340 is also annular, so as to increase the contact area of the positioning groove 340 and the positioning block 131, thereby improving the fixing effect and limiting the osmometer 300 in the circumferential direction.

[0047] Please refer to Figure 2 In some embodiments, the protection pipe 100 further comprises a sealing ring 140, and the sealing ring 140 is installed in the positioning groove 340, and the positioning block 131 contacts the sealing ring 140.

[0048] The sealing ring 140 can be plastically deformed, and the sealing ring 140 is installed in the positioning groove 340. When the osmometer 300 is installed in the protection cavity 130, the positioning block 131 can be clamped in the positioning groove 340 under the plastic deformation of the sealing ring 140.

[0049] In some embodiments, the protection tube 100 comprises a tube body 110 and an end cover 120, the tube body 110 and the end cover 120 are connected to form a protection cavity 130, the opening is arranged on the tube body 110, and the end cover 120 is arranged at an end of the tube body 110 away from the opening. The osmometer 300 has a cable 330, and the cable 330 is arranged through the end cover 120.

[0050] Since the osmometer 300 and the protection unit 200 are both arranged in the protection cavity 130, the protection tube 100 is designed as a split structure, and each component in the protection cavity 130 can be installed or disassembled. The protection tube 100 comprises a tube body 110 and an end cover 120, the tube body 110 and the end cover 120 are connected to form a protection cavity 130, of course, the tube body 110 and the end cover 120 are detachably connected, so when each component in the protection cavity 130 needs to be installed or disassembled, the tube body 110 and the end cover 120 can be connected or separated.

[0051] The opening and the first water inlet hole 111 are arranged on the tube body 110, the osmometer 300 has a cable 330, the cable 330 is electrically connected with an external detection controller, and the cable 330 is located at an end of the osmometer 300 away from the pressure measuring hole 310. Since the protective cover 220 is arranged at the opening, the pressure measuring hole 310 is located in the protective cover 220, so the end cover 120 needs to be arranged at an end of the tube body 110 away from the opening, so that the cable 330 passes through, realizing the installation and positioning of the cable 330.

[0052] Specifically, the tube body 110 and the end cover 120 can be threadedly connected, and the end cover 120 is further provided with a sealing sleeve 121 at an end thereof away from the tube body 110, and the sealing sleeve 121 is sleeved on the cable 330, further limiting the cable 330.

[0053] In some embodiments, the osmometer 300 has a wiring terminal 320, the cable 330 is connected to the wiring terminal 320, and the end cover 120 is provided with a first mounting groove 122, and the wiring terminal 320 is clamped in the first mounting groove 122.

[0054] Since the wiring terminal 320 is clamped in the first mounting groove 122, the osmometer 300 can be reinforced in cooperation with the positioning block 131 and the positioning groove 340, so that the osmometer 300 is more stable in installation in the protection cavity 130. Specifically, the wiring terminal 320 is conical, and therefore the first mounting groove 122 is also conical, so that the wiring terminal 320 is stably clamped in the first mounting groove 122.

[0055] Please refer to Figure 3 In some embodiments, the protective cover 220 is provided with a second mounting groove 222, and the second mounting groove 222 is movably sleeved on the part of the osmometer 300 where the pressure measuring hole 310 is arranged.

[0056] Since the second installation groove 222 is sleeved on the part of the osmotic pressure gauge 300 where the pressure measuring hole 310 is arranged, when the protective cover 220 is located inside the protection cavity 130, the protective cover 220 and the protection pipe 100 can jointly protect the osmotic pressure gauge 300 from impurities. Of course, when the protective cover 220 extends into the protection cavity 130, the second installation groove 222 is separated from the osmotic pressure gauge 300.

[0057] The osmotic pressure monitoring device 10 provided by the embodiment of the present application improves the technical problem that although the osmotic pressure gauge 300 in the related art can limit the blocking of sand and foreign matters by using a protection member, the shallow sand and mud in the shallow groundwater can enter the inside of the protection pipe 100 during the lowering process of the osmotic pressure gauge 300 from the ground surface to the deep groundwater, which can affect the monitoring of the osmotic pressure gauge 300. The osmotic pressure gauge 300 is isolated and treated during the lowering process from the ground surface to the deep place, the protective cover 220 is located inside the protection pipe 100, the shallow sand and mud are effectively prevented from entering the inside of the protective cover 220, and the monitoring of the osmotic pressure gauge 300 is affected. When lowered to a certain depth, the water pressure in the inner cavity between the fixed ring 211 and the movable ring 212 is increased, the movable ring 212 forces the protective cover 220 to move out of the protection pipe 100, the deep groundwater enters the inside of the protective cover 220, the osmotic pressure gauge 300 successfully performs the gap water pressure detection treatment by using the pressure measuring hole 310, and the technical effects of simple design and strong practicability are achieved.

[0058] Although the preferred embodiments of the present application have been described, those skilled in the art who obtain the basic creative concept can make other changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0059] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and the equivalent technology, the present application also intends to include these modifications and variations.

Claims

1. An osmotic monitoring device, characterized by, The utility model relates to a protection tube, a protection cavity and a first water inlet hole in communication with the protection cavity, a protection unit installed in the protection cavity, the protection unit comprising a driving assembly and a protective cover connected with each other, the protective cover being provided with a plurality of second water inlet holes in communication with the protection cavity, an osmometer installed in the protection cavity, the osmometer having a pressure measuring hole located in the protective cover, wherein, when water enters the first water inlet hole, the driving assembly can drive the protective cover to extend out of the protection tube under the action of water pressure, so that the plurality of second water inlet holes are exposed to the protection tube. The driving assembly comprises a fixed ring, a movable ring and an elastic member, the elastic member connecting the fixed ring and the movable ring, the fixed ring being sleeved on the osmometer, the movable ring being sleeved on the osmometer, and the protective cover being connected with the movable ring. The elastic member comprises a plurality of springs, the springs being arranged at intervals around the central axis of the fixed ring. The first water inlet hole is arranged on the side wall of the protection tube and corresponds to the elastic member. One end of the protection tube has an opening, and the protective cover is movably arranged in the opening.

2. The osmotic pressure monitoring device of claim 1, wherein, The inner wall of the end of the protection cavity away from the opening is provided with a positioning block, and the outer surface of the osmometer is provided with a positioning groove, and the positioning block is clamped in the positioning groove.

3. The osmotic pressure monitoring device of claim 2, wherein, The protection tube further comprises a sealing ring, the sealing ring being installed in the positioning groove, and the positioning block contacting the sealing ring.

4. The osmotic monitoring device of claim 2, wherein, The protection tube comprises a tube body and an end cover, the tube body and the end cover being connected to form the protection cavity, the opening being arranged on the tube body, the end cover being arranged on the end of the tube body away from the opening, and the osmometer having a cable, the cable being arranged in the end cover.

5. The osmotic monitoring device of any one of claims 1-4, wherein, The osmometer has a wiring terminal, the cable being connected with the wiring terminal, the end cover being provided with a first mounting groove, and the wiring terminal being clamped in the first mounting groove.

6. The osmotic pressure monitoring device of claim 5, wherein, The protective cover is provided with a second mounting groove, and the second mounting groove is movably sleeved on the part of the osmometer provided with the pressure measuring hole.

7. The osmotic pressure monitoring device of claim 6, wherein, ​ 8. The osmotic monitoring device of claim 5, wherein, ​ 9. The osmotic monitoring device of claim 8, wherein, ​ 10. The osmotic monitoring device of any one of claims 1-4, wherein, ​

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