Embedding device of one-hole multi-hole manometer combined with sleeve valve pipe

Abstract

The utility model relates to the technical field of geotechnical engineering monitoring, and discloses an embedding device of a one-hole multi-hole manometer combined with a sleeve valve pipe, the embedding device comprises the sleeve valve pipe, a manometer assembly and an embedding assembly, the manometer assembly comprises a sliding sleeve and a clamping ring which are sleeved on the sleeve valve pipe in a sliding mode, and the clamping ring is located at the top end of the sliding sleeve and used for being connected with the embedding assembly. Two connecting frames are arranged on the outer side of the sliding sleeve and used for being jointly connected with a pressure sensor. The embedding assembly comprises a butt joint ring which is slidably connected to the sleeve valve pipe in a sleeving mode, and the butt joint ring is used for being connected with the clamping ring. According to the utility model, the embedded assembly and the plurality of manometer assemblies are arranged, the embedded assembly can be successively connected with the plurality of manometer assemblies and then separated, the embedded assembly can move the connected manometer assemblies to any position on the sleeve valve pipe along the top end of the screwed sleeve valve pipe and then separate the manometer assemblies, and the separated manometer assemblies can be fixed at the positions.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical engineering monitoring, and particularly relates to a burying device for a multi-porous piezometer combined with a sleeve valve pipe in one hole. Background Technique

[0002] During the construction process of geotechnical engineering, a pore water pressure gauge is commonly buried at different depths in a borehole to monitor the change of pore water pressure in the formation, and whether there is a risk in the project is judged according to the change of pore water pressure.

[0003] In order to ensure the accuracy of the piezometer reading, a method of burying one piezometer in one borehole is often adopted. Limited by construction equipment and technology, there is a large horizontal distance between each borehole. Therefore, although this burying method can ensure that there is no hydraulic connection between each piezometer, the change law of pore water pressure along the depth cannot be observed. At the same time, this burying method will significantly increase the cost.

[0004] To solve the above problems, a construction method for burying a multi-porous piezometer in one hole should be designed. Its main idea is to fill bentonite between different piezometers to block the hydraulic connection between adjacent piezometers. In water-rich areas, especially coastal areas, the high groundwater pressure makes it difficult to control the filling amount and filling position of bentonite, and the sealing effect after filling is also difficult to be satisfactory.

[0005] The burying method of the piezometer is usually the pressing method, that is, the piezometer is pressed into the soil layer at a specified depth. This burying method usually causes the accumulation of excess pore pressure. If there is not enough time for the excess pore pressure to slowly dissipate, it will lead to a large error in the measurement result. In addition to the accumulation of excess pore pressure, the construction using the pressing method will also make it difficult for the piezometer to maintain a vertical state, especially in soft soil areas with poor soil quality. The sleeve valve pipe grouting method is an economical and practical grouting process. Pressure sensors can be installed at different height positions on the buried sleeve valve pipe, so that the pressure data at different depths in the soil can be monitored, and grouting is carried out between any two adjacent piezometers to isolate the hydraulic connection between adjacent piezometers, so as to ensure the monitoring accuracy of different pressure sensors. Content of the Utility Model

[0006] The purpose of the utility model is to provide a burying device for a multi-porous piezometer combined with a sleeve valve pipe in one hole to solve the problem that it is difficult to install multiple pressure sensors in a single borehole in the prior art.

[0007] To solve the above technical problems, the utility model specifically provides the following technical solutions:

[0008] A burying device for a one-hole multi-porous piezometer combined with a sleeve valve pipe, comprising a sleeve valve pipe, a piezometer assembly and a burying assembly. The piezometer assembly includes a sliding sleeve sleeved on the sleeve valve pipe and a snap ring. The snap ring is located at the top end of the sliding sleeve and is used to connect the burying assembly. Two connecting frames are arranged on the outer side of the sliding sleeve, and the two connecting frames are used to commonly connect a pressure sensor.

[0009] The burying assembly includes a docking ring slidably sleeved on the sleeve valve pipe. The docking ring is used to connect the snap ring. A connecting rod is connected to the top end of the docking ring, and a main hose connected to a pump body is arranged inside the connecting rod.

[0010] As a preferred scheme of the present utility model, two transfer blocks are arranged at the top end of the docking ring. A Y-shaped connecting frame is rotatably connected to the two transfer blocks. A threaded sleeve for threadedly sleeving the end of the connecting rod is arranged on the Y-shaped connecting frame. An air pipe joint for connecting the main hose is arranged inside the threaded sleeve. The bottom of the air pipe joint passes through the Y-shaped connecting frame and is connected to two sub-hoses.

[0011] Two positioning columns longitudinally passing through the docking ring are arranged on the docking ring. An inner clamping groove horizontally passing through the positioning column is opened at the bottom of the positioning column. A part of the inner clamping groove extends upward through the positioning column and is connected to one of the sub-hoses.

[0012] As a preferred scheme of the present utility model, two slots for connecting the docking ring are opened on the upper surface of the snap ring. A first cavity communicated with the slot is opened inside the snap ring. A second cavity is arranged at one end of the first cavity. A third cavity is opened at one end of the second cavity. A fourth cavity distributed towards the center of the snap ring is opened at one end of the third cavity. A sliding plug assembly is commonly connected inside the first cavity, the second cavity and the third cavity. A rectangular sliding plug is slidably connected inside the fourth cavity. A card capable of passing through the snap ring and used for clamping the sliding sleeve is arranged on one side of the rectangular sliding plug.

[0013] A plurality of uniformly distributed one-way clamping teeth are arranged on the inner wall of the second cavity.

[0014] As a preferred scheme of the present utility model, the sliding plug assembly includes a first sliding plug always slidably connected inside the first cavity. An arc-shaped connecting rod passing through the second cavity is arranged at one end of the first sliding plug. A second sliding plug always slidably connected inside the third cavity is arranged at one end of the arc-shaped connecting rod. A positioning clamping column for inserting into the inner clamping groove is arranged at the other end of the first sliding plug.

[0015] As a preferred embodiment of the present utility model, a rectangular groove is formed in the arc-shaped connecting rod, and a one-way engaging block that is in one-way engagement with the one-way engaging teeth is rotatably connected in the rectangular groove, and a spring for elastically supporting the one-way engaging block is provided in the rectangular groove.

[0016] As a preferred embodiment of the present utility model, the distance between the two connecting frames is adapted to the length of the pressure sensor. The connecting frame includes a fixing block fixedly connected to the sliding sleeve, and a mounting block is movably connected to the side surface of the fixing block. A connecting bolt is provided between the fixing block and the mounting block for fixed connection;

[0017] A threaded hole longitudinally passing through the fixing block is formed in the fixing block, and two through holes longitudinally passing through the mounting block are formed in the mounting block. The connecting bolt passes through the two through holes and the threaded hole and is threadedly connected to the threaded hole;

[0018] Embedding grooves for embedding the ends of the pressure sensors are formed on the opposite surfaces of the mounting blocks of the two connecting frames, and a wire hole communicating with the corresponding embedding groove is formed at the top of the mounting block located above.

[0019] The present utility model has the following beneficial effects compared with the prior art:

[0020] (1) The present utility model is provided with a burying assembly and a plurality of piezometer assemblies. The burying assembly can be successively connected to and then separated from the plurality of piezometer assemblies, and the burying assembly can move the connected piezometer assemblies along the top of the already screwed-in sleeve valve pipe to any position on the sleeve valve pipe and then separate. The separated piezometer assemblies can be fixed at the positions where they are located. Therefore, a plurality of piezometer assemblies can be installed on the whole sleeve valve pipe formed by screwing together multiple sections of sleeve valve pipes, so as to measure different depths in a single burying hole.

[0021] (2) The present utility model is provided with slurry outlets between any two adjacent piezometer assemblies on the sleeve valve pipe. After the sleeve valve pipe with a plurality of piezometer assemblies installed is buried in the drilling hole, grouting is carried out to a nearby position in the drilling hole through the plurality of slurry outlets of the sleeve valve pipe, so as to isolate the hydraulic connection between any two adjacent piezometer assemblies. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained according to the provided drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of the whole device of the present utility model.

[0024] Figure 2 This is the connecting frame of the present utility model.

[0025] Figure 3 This is the structural schematic diagram of the docking ring of the present utility model.

[0026] Figure 4 This is the top view semi-sectional view of the snap ring of the present utility model.

[0027] Figure 5 This is the partial sectional view of the sliding plug assembly of the present utility model.

[0028] Reference numerals:

[0029] 1. Sleeve valve pipe; 2. Sliding sleeve; 3. Snap ring; 4. Connecting frame; 5. Pressure sensor; 6. Docking ring; 7. Link rod; 8. Main hose;

[0030] 31. Slot; 32. First cavity; 33. Second cavity; 34. Third cavity; 35. Fourth cavity; 36. Sliding plug assembly; 37. Rectangular sliding plug; 38. Card;

[0031] 331. One-way locking tooth; 361. First sliding plug; 362. Arc-shaped link rod; 363. Second sliding plug; 364. Positioning locking column; 365. Rectangular groove; 366. One-way locking block; 367. Spring;

[0032] 41. Fixed block; 42. Mounting block; 43. Connecting bolt;

[0033] 411. Threaded hole; 421. Through hole; 422. Embedded groove; 423. Wire hole;

[0034] 61. Adapter block; 62. Y-shaped connecting frame; 63. Positioning column;

[0035] 621. Threaded sleeve; 622. Air pipe joint; 623. Sub-hose; 631. Inner card slot. Detailed implementation manners

[0036] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0037] Generally, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.

[0038] Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Embodiment

[0041] The following is combined with Figures 1 to 5 As shown in the figure, the embodiment of the present utility model provides a burying device for a one-hole multi-hole piezometer combined with a sleeve valve pipe, including a sleeve valve pipe 1, a piezometer assembly, and a burying assembly. The piezometer assembly includes a sliding sleeve 2 slidably sleeved on the sleeve valve pipe 1 and a snap ring 3. The snap ring 3 is located at the top of the sliding sleeve 2 and is used to connect the burying assembly. Two connecting frames 4 are arranged on the outer side of the sliding sleeve 2, and the two connecting frames 4 are used to commonly connect a pressure sensor 5.

[0042] The burying assembly includes a docking ring 6 slidably sleeved on the sleeve valve pipe 1. The docking ring 6 is used to connect the snap ring 3. A connecting rod 7 is connected to the top of the docking ring 6, and a main hose 8 connected to a pump body is arranged inside the connecting rod 7.

[0043] The sleeve valve pipe of the present utility model is a conventional multi-section sleeve valve pipe 1 butt-jointed end to end to form a complete sleeve valve pipe 1. The process of splicing the multi-section sleeve valve pipe 1 is the process of burying it into the drilling hole. During this process, it is also necessary to use the burying assembly to install multiple piezometer assemblies on the sleeve valve pipe 1.

[0044] The present utility model is provided with a burying assembly and multiple piezometer assemblies. The burying assembly can be successively connected to and then separated from the multiple piezometer assemblies, and the burying assembly can move the connected piezometer assembly along the top of the already screwed sleeve valve pipe 1 to any position on the sleeve valve pipe and then separate. The separated piezometer assembly can be fixed at the position where it is located. Therefore, multiple piezometer assemblies can be installed on the overall sleeve valve pipe formed by screwing multiple sections of sleeve valve pipes 1, so as to measure different depths in a single burying hole.

[0045] The conventional installation method of the sleeve valve pipe 1 is as follows: a hole with a corresponding depth is drilled at a preset position in the soil in advance, and the sleeve valve pipe 1 is inserted into the hole. By pumping a filling fluid into the sleeve valve pipe 1 and overflowing it through a plurality of holes opened on the sleeve valve pipe 1 until the hole is filled, the installation of the sleeve valve pipe 1 is completed. If it is necessary to monitor the pressure of the soil at different depths, a pressure gauge assembly needs to be installed at the corresponding position on the sleeve valve pipe 1 in advance to ensure that after the sleeve valve pipe 1 is installed, the pressure gauge assembly can be located at the specified depth in the hole.

[0046] It should be noted that in this embodiment, since it is necessary to install a plurality of pressure gauge assemblies at different depths in a single drill hole, the sleeve valve pipe 1 as the installation carrier of the pressure gauge assembly can, according to the buried depth of the complete sleeve valve pipe 1 after screwing, during the process of the construction equipment gradually burying each section of the sleeve valve pipe 1, adjust the pressure gauge assembly to the corresponding position on the corresponding sleeve valve pipe 1 (usually the upper and lower ends of the slurry outlet of the sleeve valve pipe 1) through the burying assembly. After the installation of the complete sleeve valve pipe 1 and all the pressure gauge assemblies is completed, grout can be injected into the sleeve valve pipe 1, and the drill hole can be filled with grout sprayed through the holes opened on the sleeve valve pipe 1 to isolate any adjacent pore pressure gauges (the specific method of how to complete the grouting in the drill hole is common technical knowledge in the art, and only the hydraulic connection effect between adjacent pressure gauge assemblies needs to be blocked without damaging the pressure gauge assembly, so it will not be elaborated here).

[0047] Among them, the distance between the two connecting frames 4 is adapted to the length of the pressure sensor 5. The connecting frame 4 includes a fixed block 41 fixedly connected to the sliding sleeve 2. A mounting block 42 is movably connected to the side of the fixed block 41, and a connecting bolt 43 is provided between the fixed block 41 and the mounting block 42 for fixed connection;

[0048] A threaded hole 411 longitudinally passing through the fixed block 41 is opened on the fixed block 41. Two through holes 421 longitudinally passing through the mounting block 42 are opened on the mounting block 42. The connecting bolt 43 passes through the two through holes 421 and the threaded hole 411 and is threadedly connected to the threaded hole 411;

[0049] Embedding grooves 422 for embedding the ends of the pressure sensor 5 are opened on the opposite surfaces of the mounting blocks 42 of the two connecting frames 4. A wire hole 423 communicating with the corresponding embedding groove 422 is opened at the top of the mounting block 42 located above.

[0050] The pressure gauge assembly realizes pressure monitoring through the pressure sensor 5. The pressure sensor 5 is installed on the sliding sleeve 2 by the connecting frame 4, and then the sliding sleeve 2 slides along the sleeve valve pipe 1 to adjust the position. The specific way of installing the connecting frame 4 on the sensor 5 is as follows: embed the two ends of the pressure sensor 5 into the embedding grooves 422 on the two mounting blocks 42 respectively. The signal wire of the pressure sensor 5 passes through the wire hole 423 on the mounting block 42. Then, horizontally snap the two mounting blocks 42 onto the two fixing blocks 41. Finally, use two connecting bolts 43 to fix the two groups of mounting blocks 42 and fixing blocks 41. This way of fixing both ends of the pressure sensor 5 can ensure the stability of the pressure sensor, and the middle part of the pressure sensor 5 is exposed to facilitate monitoring the external pressure environment.

[0051] Among them, two slots 31 for connecting the docking ring 6 are opened on the upper surface of the snap ring 3. A first cavity 32 communicating with the slot 31 is opened inside the snap ring 3. One end of the first cavity 32 is provided with a second cavity 33. One end of the second cavity 33 is provided with a third cavity 34. One end of the third cavity 34 is provided with a fourth cavity 35 distributed towards the center of the snap ring 3. A sliding plug assembly 36 is jointly connected inside the first cavity 32, the second cavity 33 and the third cavity 34. A rectangular sliding plug 37 is slidably connected inside the fourth cavity 35. One side of the rectangular sliding plug 37 is provided with a card 38 that can pass through the snap ring 3 and is used to clamp the sliding sleeve 2.

[0052] A plurality of uniformly distributed one-way locking teeth 331 are provided on the inner wall of the second cavity 33.

[0053] The sliding plug assembly 36 includes a first sliding plug 361 that is always slidably connected inside the first cavity 32. One end of the first sliding plug 361 is provided with an arc-shaped connecting rod 362 passing through the second cavity 33. One end of the arc-shaped connecting rod 362 is provided with a second sliding plug 363 that is always slidably connected inside the third cavity 34. The other end of the first sliding plug 361 is provided with a positioning card post 364 for inserting into the inner card slot 631.

[0054] A rectangular groove 365 is opened on the arc-shaped connecting rod 362. A one-way locking block 366 that is in one-way engagement with the one-way locking teeth 331 is rotatably connected inside the rectangular groove 365. A spring 367 for elastically supporting the one-way locking block 366 is provided inside the rectangular groove 365.

[0055] The sliding sleeve 2 serves as the base for installing the pressure gauge assembly, and the sliding sleeve 2 can slide on the sleeve valve pipe 1 to adjust the height position of the pressure gauge assembly. The snap ring 3 is arranged on the sliding sleeve 2 and can move up and down along the sleeve valve pipe 1. And a structure for clamping the sleeve valve pipe 1 through pressurization is provided inside the snap ring 3, so as to fix the positions of the sliding sleeve 2 and the pressure gauge assembly.

[0056] Among them, two adapter blocks 61 are provided at the top of the docking ring 6. A Y-shaped connection frame 62 is rotatably connected to the two adapter blocks 61 together. A threaded sleeve 621 for threadedly sleeving the end of the connecting rod 7 is provided on the Y-shaped connection frame 62. An air pipe joint 622 for connecting the main hose 8 is provided inside the threaded sleeve 621. The bottom of the air pipe joint 622 passes through the Y-shaped connection frame 62 and is connected to two sub-hoses 623.

[0057] Two positioning columns 63 longitudinally passing through the docking ring 6 are provided on the docking ring 6. An inner card slot 631 horizontally passing through the positioning column 63 is opened at the bottom of the positioning column 63. A part of the inner card slot 631 extends upward through the positioning column 63 and is connected to a sub-hose 623.

[0058] Specifically, the docking ring 6 is used as the connection structure between the connecting rod 7 and the clamping ring 3. When installing the pressure gauge assembly, first sleeved the sliding sleeve 2 on the sleeve valve pipe 1. At this time, both the sliding sleeve 2 and the clamping ring 3 are located outside the sleeve valve pipe 1. Then, sleeve the docking ring 6 on the sleeve valve pipe 1 to dock with the clamping ring 3, and use the connecting rod 7 to extend the docking ring 6 and the pressure gauge assembly towards the bottom of the sleeve valve pipe 1. When the pressure sensor 5 of the pressure gauge assembly reaches the specified depth, pump liquid into the main hose 8 through the pump body, so that the liquid in the main hose 8 sequentially enters the two first cavities 32 through the air pipe joint 622, the two sub-hoses 623 and the inner card slots 631 in the two positioning columns 63. As the pressure in the first cavity 32 increases, the sliding plug assembly 36 generates displacement, so that the pressure in the third cavity 34 and the fourth cavity 35 increases. At this time, the rectangular sliding plug 37 in the fourth cavity 35 will generate displacement, so that the card 38 extends out of the fourth cavity 35 and is clamped outside the sleeve valve pipe 1.

[0059] Before the displacement of the sliding plug assembly 36, the positioning and clamping column 364 is inserted into the inner card slot 631 of the positioning column 63. As the pressure in the first cavity 32 increases, the sliding plug assembly 36 generates displacement. At this time, the first sliding plug 361 moves in the first cavity 32 towards the second cavity 33, so that the positioning and clamping column 364 gradually disengages from the inner card slot 631, so that the positioning column 63 can be pulled out upward from the slot 31 of the clamping ring 3; and as the first sliding plug 361 moves towards the second cavity 33, the arc-shaped connecting rod 362 and the second sliding plug 363 move synchronously. The second sliding plug 363 can increase the pressure in the fourth cavity 35 under the extrusion in the third cavity 34. When the arc-shaped connecting rod 362 moves in the second cavity 33 towards the third cavity 34, the one-way clamping block 366 elastically supported by the spring 367 elastically abuts against the one-way clamping block 366 and will not engage with the one-way clamping block 366. If the arc-shaped connecting rod 362 moves in the second cavity 33 towards the first cavity 32, the one-way clamping block 366 elastically supported by the spring 367 elastically abuts against the one-way clamping block 366 and engages with the one-way clamping block 366.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A burying device for a one-hole multi-porous piezometer combined with a sleeve valve pipe, comprising a sleeve valve pipe (1), a piezometer assembly and a burying assembly, characterized in that: The pressure gauge assembly includes a sliding sleeve (2) and a snap ring (3) sleeved on the sleeve valve pipe (1). The snap ring (3) is located at the top of the sliding sleeve (2) and is used to connect the burying assembly. Two connecting frames (4) are arranged on the outer side of the sliding sleeve (2), and the two connecting frames (4) are used to jointly connect a pressure sensor (5). The burying assembly includes a docking ring (6) sleeved on the sleeve valve pipe (1) in a sliding manner. The docking ring (6) is used to connect the snap ring (3). A connecting rod (7) is connected to the top of the docking ring (6), and a main hose (8) connected to a pump body is arranged inside the connecting rod (7).

2. The embedding device of a one-hole multi-porous piezometer combined with a sleeve valve pipe according to claim 1, characterized in that, Two transfer blocks (61) are arranged at the top of the docking ring (6). A Y-shaped connecting frame (62) is rotatably connected to the two transfer blocks (61). A threaded sleeve (621) for threadedly sleeving the end of the connecting rod (7) is arranged on the Y-shaped connecting frame (62). An air pipe joint (622) for connecting the main hose (8) is arranged inside the threaded sleeve (621). The bottom of the air pipe joint (622) passes through the Y-shaped connecting frame (62) and is connected to two sub-hoses (623). Two positioning columns (63) longitudinally passing through the docking ring (6) are arranged on the docking ring (6). An inner card slot (631) horizontally passing through the positioning column (63) is opened at the bottom of the positioning column (63). A part of the inner card slot (631) extends upward through the positioning column (63) and is connected to one of the sub-hoses (623).

3. The burying device of a one-hole multi-porous piezometer combined with a sleeve valve pipe according to claim 2, characterized in that, Two slots (31) for connecting the docking ring (6) are opened on the upper surface of the snap ring (3). A first cavity (32) communicating with the slot (31) is opened inside the snap ring (3). A second cavity (33) is arranged at one end of the first cavity (32). A third cavity (34) is opened at one end of the second cavity (33). A fourth cavity (35) distributed towards the center of the snap ring (3) is opened at one end of the third cavity (34). A sliding plug assembly (36) is jointly connected inside the first cavity (32), the second cavity (33) and the third cavity (34). A rectangular sliding plug (37) is slidably connected inside the fourth cavity (35). A card (38) capable of passing through the snap ring (3) and used for clamping the sliding sleeve (2) is arranged on one side of the rectangular sliding plug (37). A plurality of uniformly distributed one-way locking teeth (331) are arranged on the inner wall of the second cavity (33).

4. The burying device of a one-hole multi-porous piezometer combined with a sleeve valve pipe according to claim 3, characterized in that The sliding plug assembly (36) includes a first sliding plug (361) always slidably connected inside the first cavity (32). An arc-shaped connecting rod (362) passing through the second cavity (33) is arranged at one end of the first sliding plug (361). A second sliding plug (363) always slidably connected inside the third cavity (34) is arranged at one end of the arc-shaped connecting rod (362). A positioning card column (364) for inserting into the inner card slot (631) is arranged at the other end of the first sliding plug (361).

5. The embedding device of a one-hole multi-porous piezometer combined with a sleeve valve pipe according to claim 4, characterized in that, A rectangular groove (365) is formed in the arc-shaped connecting rod (362), and a one-way engaging block (366) that is in one-way engagement with the one-way engaging teeth (331) is rotatably connected in the rectangular groove (365). A spring (367) for elastically supporting the one-way engaging block (366) is provided in the rectangular groove (365).

6. The embedding device of a one-hole multi-porous piezometer combined with a sleeve valve pipe according to claim 1, characterized in that, The distance between the two connecting frames (4) is adapted to the length of the pressure sensor (5). The connecting frame (4) includes a fixed block (41) fixedly connected to the sliding sleeve (2). A mounting block (42) is movably connected to the side surface of the fixed block (41), and a connecting bolt (43) is provided between the fixed block (41) and the mounting block (42) for fixed connection; A threaded hole (411) longitudinally passing through the fixed block (41) is formed in the fixed block (41). Two through holes (421) longitudinally passing through the mounting block (42) are formed in the mounting block (42). The connecting bolt (43) passes through the two through holes (421) and the threaded hole (411) and is threadedly connected to the threaded hole (411); Embedding grooves (422) for embedding the ends of the pressure sensor (5) are formed in the opposite surfaces of the mounting blocks (42) of the two connecting frames (4). A wire hole (423) communicating with the corresponding embedding groove (422) is formed at the top end of the mounting block (42) located above.

Images