A replacement tool for a water potential sensor on a hydrological monitoring device

Abstract

The utility model relates to hydrological monitoring technical field, concretely is a kind of replacement tool for water potential sensor on hydrological monitoring equipment, including outer sleeve, hollow jack and moving pole, outer sleeve is detachably arranged on the cylinder wall of hydrological monitoring equipment, outer sleeve cover is arranged on the outside of the plug core of hydrological monitoring equipment cylinder wall, hollow jack is detachably arranged on outer sleeve, the upper portion of moving pole is detachably arranged on the hollow hydraulic rod of hollow jack, the central position of plug core is provided with through-hole, the lower portion of moving pole passes hollow hydraulic rod of hollow jack, outer sleeve in sequence and is inserted into through-hole and is fixedly connected with plug core. The replacement tool for water potential sensor on hydrological monitoring equipment of the utility model, through-hole is arranged on plug core, only need to drill, do not need to tap down;The expansion sleeve of moving pole lower portion is inserted into the through-hole of plug core, moving pole is moved up and down by hollow jack, and plug core is carried out by the lifting force of hollow jack.

Description

Technical Field

[0001] This utility model relates to the field of hydrological monitoring equipment technology, specifically to a replacement tool for a water potential sensor on a hydrological monitoring equipment. Background Technology

[0002] Currently, water potential sensors are typically installed on hydrological monitoring equipment to monitor soil moisture content. Specifically, the water potential sensor is mounted on a plug, which is installed in an opening in the cylinder wall of the hydrological monitoring equipment. The current method involves drilling a small hole in the center of the plug and tapping it to create a threaded hole. The tip of a screw rod is then screwed into the drilled threaded hole, and the first nut is tightened to secure the screw rod and plug. Subsequently, a wrench is used to turn the second nut at the top of the screw rod, causing it to slowly rotate and lift. Finally, the displacement of the screw rod removes the plug, allowing the water potential sensor to be removed and replaced.

[0003] However, the following problems exist:

[0004] 1. The plug is made of aluminum alloy, so the strength of the threads tapped by the tap is insufficient. When the screw is displaced, the threads are prone to stripping, and the screw cannot be tightened again. It is necessary to re-drill and tap.

[0005] Second, when working at heights, manually turning the second nut with a wrench can cause imbalance due to the exertion of force by the body, posing a safety hazard.

[0006] Therefore, there is an urgent need for a replacement tool for the water potential sensor on hydrological monitoring equipment to solve the above problems. Utility Model Content

[0007] To address the technical problems of aluminum alloy plugs, which result in insufficient thread strength from taps and a tendency for threads to strip during displacement, making subsequent tightening impossible and requiring re-drilling and tapping, and the safety risks associated with manually rotating the second nut with a wrench during high-altitude operations due to imbalance caused by body exertion, this invention provides a replacement tool for water potential sensors on hydrological monitoring equipment. The plug has a through hole at its center, requiring only drilling and eliminating the need for tapping, thus avoiding thread stripping and repeated drilling. An expansion sleeve at the bottom of the moving rod extends into the through hole of the plug, and a hollow jack moves the moving rod up and down, using the lifting force of the jack to remove the plug. This reduces manual labor and lowers the probability of accidents caused by imbalance during high-altitude operations.

[0008] This utility model provides a replacement tool for a water potential sensor on a hydrological monitoring device, including an outer sleeve, a hollow jack, and a moving rod. The outer sleeve is detachably mounted on the cylinder wall of the hydrological monitoring device and covers the outside of the plug core on the cylinder wall of the hydrological monitoring device. The hollow jack is detachably mounted on the outer sleeve. The upper part of the moving rod is detachably mounted on the hollow hydraulic rod of the hollow jack. A through hole is provided at the center of the plug core. The lower part of the moving rod passes through the hollow hydraulic rod of the hollow jack and the outer sleeve in sequence, extends into the through hole, and is fixedly connected to the plug core.

[0009] Furthermore, the lower part of the inner wall of the outer sleeve is provided with an embedded groove, and the groove wall is provided with a first internal thread. A fixing sleeve is fixedly installed on the cylinder wall of the hydrological monitoring equipment, and the plug is located inside the fixing sleeve. A first external thread matching the first internal thread is provided on the outer surface of the fixing sleeve. The outer sleeve is threadedly connected to the fixing sleeve through the first internal thread and the first external thread. The outer sleeve can be detached and installed on the cylinder wall of the hydrological monitoring equipment through the first internal thread and the first external thread.

[0010] Furthermore, a support platform is fixedly installed above the inner wall of the outer sleeve, the support platform being located above the inner groove. The hollow jack is engaged between the inner wall of the outer sleeve and the support platform. A notch is provided at the top of the outer sleeve, the notch being located to the side of the support platform. The support platform supports and fixes the hollow jack, allowing the hollow jack to be detached and mounted on the outer sleeve.

[0011] Furthermore, a central hole is provided at the center of the support platform. The lower part of the moving rod passes sequentially through the hollow hydraulic rod of the hollow jack, the central hole, and the lower part of the outer sleeve, extending into the through hole and being fixedly connected to the plug. The central hole provides clearance for the lower part of the moving rod, ensuring that the moving rod can move up and down.

[0012] Furthermore, an expansion sleeve is fitted onto the lower part of the moving rod, and the expansion sleeve extends into the through hole and is fixedly connected to the plug. The lower part of the moving rod and the expansion sleeve extend into the through hole of the plug, and the expansion sleeve is fixedly connected to the plug.

[0013] Furthermore, the upper part of the moving rod is provided with a second external thread, and the upper part of the moving rod is threadedly connected to the hollow hydraulic rod of the hollow jack through the second external thread and a locking nut. The upper part of the moving rod can be detached and mounted on the hollow hydraulic rod of the hollow jack through the second external thread and the locking nut.

[0014] Furthermore, two locking nuts are provided, and a washer is fixedly installed between the lower locking nut and the hollow hydraulic rod of the hollow jack. The washer reduces wear on the moving rod and the locking nut.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model's water replacement tool features a through hole at the center of the plug, requiring only drilling and eliminating the need for tapping. This avoids the problem of thread stripping and the need for repeated drilling. The expansion sleeve at the bottom of the moving rod extends into the through hole of the plug, and the moving rod is moved up and down by a hollow jack. The lifting force of the hollow jack removes the plug, reducing manual labor. The hollow jack is easy to carry and operate, reducing the probability of accidents caused by imbalance due to body exertion during high-altitude operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the replacement tool for the water potential sensor on the hydrological monitoring equipment of this utility model;

[0018] Figure 2 This is an exploded structural diagram of the replacement tool of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the replacement tool of this utility model;

[0020] Figure 4 This is a schematic diagram of the sleeve structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the movable rod of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the replacement tool of this utility model when it is installed on the cylinder wall of the hydrological monitoring equipment;

[0023] The numbers in the attached diagram are:

[0024] 1. Outer sleeve; 11. Inner groove; 111. First internal thread; 12. Support platform; 121. Center hole; 13. Notch; 2. Hollow jack; 21. Hollow hydraulic rod; 3. Moving rod; 31. Expansion sleeve; 32. Second external thread; 33. Tightening nut; 34. Washer; 4. Cylinder wall; 5. Fixing sleeve; 51. First external thread; 6. Plug; 61. Through hole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1-6As shown, a replacement tool for a water potential sensor on a hydrological monitoring device includes an outer sleeve 1, a hollow jack 2, and a moving rod 3. The outer sleeve 1 is detachably mounted on the cylindrical wall 4 of the hydrological monitoring device and covers the outside of the plug core 6 of the cylindrical wall 4. The hollow jack 2 is detachably mounted on the outer sleeve 1. The upper part of the moving rod 3 is detachably mounted on the hollow hydraulic rod 21 of the hollow jack 2. The plug core 6 has a through hole 61 at its center. The through hole 61 is circular with an inner diameter of 8mm. The lower part of the moving rod 3 passes sequentially through the hollow hydraulic rod 21 of the hollow jack 2 and the outer sleeve 1, extending into the through hole 61 and being fixedly connected to the plug core 6. The structure and movement process of the hollow jack 2 are existing technologies and will not be described in detail here. The water potential sensor is mounted on the plug core 6, which is installed in an opening in the cylindrical wall 4 of the hydrological monitoring device.

[0027] Before changing the tool, the outer sleeve 1 is installed on the cylinder wall 4 of the hydrological monitoring equipment, the hollow jack 2 is fixed to the outer sleeve 1, the upper part of the moving rod 3 is fixed to the hollow hydraulic rod 21 of the hollow jack 2, and the lower part of the moving rod 3 passes through the hollow hydraulic rod 21 of the hollow jack 2 and the outer sleeve 1 in sequence.

[0028] The replacement tool is used as follows: The hollow jack 2 is activated, causing the hollow hydraulic rod 21 to move downwards, which in turn moves the moving rod 3 downwards. The lower part of the moving rod 3 extends into the through hole 61 of the plug core 6, thus achieving a fixed connection with the plug core 6. Afterwards, the hollow jack 2 moves the hollow hydraulic rod 21 upwards, which in turn moves the moving rod 3 and the plug core 6 upwards. The plug core 6 moves upwards and leaves the cylinder wall 4 of the hydrological monitoring equipment. The water potential sensor on the plug core 6 can then be removed and replaced. It should be noted that the moving rod 3 is a consumable part and can be replaced periodically. In this embodiment, when not in use, the outer sleeve 1, the hollow jack 2, and the moving rod 3 can be disassembled. The overall structure is simple and easy to assemble and disassemble.

[0029] In this embodiment, the replacement tool has a through hole 61 at the center of the plug 6. Only drilling is required, without tapping, so there is no problem of thread stripping and it avoids repeated drilling of threaded holes. The lower part of the moving rod 3 extends into the through hole 61 of the plug 6. The moving rod 3 is moved up and down by the hollow jack 2. The lifting force of the hollow jack 2 is used to remove the plug 6, which reduces manual labor. The hollow jack 2 is easy to carry and operate, which reduces the probability of unsafe accidents caused by imbalance due to body exertion during high-altitude operations.

[0030] In one possible implementation, the lower part of the inner wall of the outer sleeve 1 is provided with an embedded groove 11. A first internal thread 111 is provided on the groove wall of the embedded groove 11. A fixing sleeve 5 is fixedly installed on the cylinder wall 4 of the hydrological monitoring equipment, and a plug 6 is located inside the fixing sleeve 5. The plug 6 is held in place inside the fixing sleeve 5. The fixing sleeve 5 is made of stainless steel, and a first external thread 51 matching the first internal thread 111 is provided on the outer surface of the fixing sleeve 5. The outer sleeve 1 is threadedly connected to the fixing sleeve 5 via the first internal thread 111 and the first external thread 51. The outer sleeve 1 can be detached and installed on the fixing sleeve 5 via the first internal thread 111 and the first external thread 51. Simultaneously, the embedded groove 11 limits the position of the fixing sleeve 5. When the outer sleeve 1 is threadedly connected to the fixing sleeve 5 via the first internal thread 111 and the first external thread 51, the embedded groove 11 is in contact with the fixing sleeve 5, ensuring a stable connection between the outer sleeve 1 and the fixing sleeve 5.

[0031] Preferably, the cylindrical wall 4 of the hydrological monitoring equipment is provided with a ring seat and the ring seat is located outside the opening, and the fixing sleeve 5 is fixedly installed on the ring seat.

[0032] In one possible implementation, a support platform 12 is fixedly installed above the inner upper part of the outer sleeve 1. The support platform 12 is located above the inner groove 11. The hollow jack 2 is engaged between the inner wall of the outer sleeve 1 and the support platform 12. A notch 13 is provided at the upper part of the outer sleeve 1, located to the side of the support platform 12. The support platform 12 supports and fixes the hollow jack 2, allowing the hollow jack 2 to be detachably mounted on the outer sleeve 1. The hollow jack 2 can be engaged between the inner wall of the outer sleeve 1 and the support platform 12, or it can be pulled out from between the inner wall of the outer sleeve 1 and the support platform 12. The notch 13 provides space for the air vent of the hollow jack 2, which passes through the notch 13 for subsequent air passage.

[0033] Preferably, the hollow jack 2 is fixedly equipped with a handle, which makes it convenient for staff to operate the hollow jack 2.

[0034] In one possible implementation, a central hole 121 is provided at the center of the support platform 12. The lower part of the moving rod 3 passes sequentially through the hollow hydraulic rod 21 of the hollow jack 2, the central hole 121, and the lower part of the outer sleeve 1, extending into the through hole 61 and being fixedly connected to the plug core 6. The central hole 121 provides clearance for the lower part of the moving rod 3, ensuring that the moving rod 3 can move up and down.

[0035] In one possible implementation, an expansion sleeve 31 is fitted onto the lower part of the moving rod 3. The expansion sleeve 31 extends into the through hole 61 and is fixedly connected to the plug core 6. The expansion sleeve 31 is made of metal. It should be noted that the expansion sleeve 31 is a consumable part and can be replaced periodically. When the hollow jack 2 is activated, it drives the hollow hydraulic rod 21 to move downward, which in turn drives the moving rod 3 to move downward. The lower part of the moving rod 3 and the expansion sleeve 31 extend into the through hole 61 of the plug core 6, and the expansion sleeve 31 is fixedly connected to the plug core 6. Generally, the lower part of the moving rod 3 passes sequentially through the hollow hydraulic rod 21 of the hollow jack 2, the central hole 121, and the lower part of the outer sleeve 1 into the through hole 61, and part of the expansion sleeve 31 extends out of the through hole 61 and is located in the opening of the cylindrical wall 4 of the hydrological monitoring equipment.

[0036] Furthermore, a plug is fixedly installed at the bottom of the moving rod 3, and the expansion sleeve 31 is located above the plug. The plug ensures that the expansion sleeve 31 is fixed at the lower part of the moving rod 3.

[0037] In one possible implementation, the upper part of the movable rod 3 is provided with a second external thread 32, and the upper part of the movable rod 3 is threadedly connected to the hollow hydraulic rod 21 of the hollow jack 2 through the second external thread 32 and the locking nut 33. The locking nut 33 is provided with a second internal thread that matches the second external thread 32, and the upper part of the movable rod 3 is detached and mounted on the hollow hydraulic rod 21 of the hollow jack 2 through the second external thread 32 and the second internal thread on the locking nut 33.

[0038] In one possible implementation, two locking nuts 33 are provided, and a washer 34 is fixedly disposed between the lower locking nut 33 and the hollow hydraulic rod 21 of the hollow jack 2. The upper part of the moving rod 3 is threadedly connected to the hollow hydraulic rod 21 of the hollow jack 2 via the two locking nuts 33, further ensuring that the moving rod 3 is stably fixed to the hollow hydraulic rod 21 of the hollow jack 2. The washer 34 reduces wear on the moving rod 3 and the locking nuts 33.

[0039] The embodiments described above are merely preferred embodiments of this utility model and are only used to explain this utility model. They are not intended to limit the scope of implementation of this utility model. For those skilled in the art, other implementation methods can be easily made by substitution or modification based on the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A replacement tool for a water potential sensor on a hydrological monitoring device, characterized by, The device includes an outer sleeve (1), a hollow jack (2), and a moving rod (3). The outer sleeve (1) is detachably mounted on the cylinder wall (4) of the hydrological monitoring equipment. The outer sleeve (1) covers the outside of the plug core (6) of the hydrological monitoring equipment. The hollow jack (2) is detachably mounted on the outer sleeve (1). The upper part of the moving rod (3) is detachably mounted on the hollow hydraulic rod (21) of the hollow jack (2). The plug core (6) has a through hole (61) at its center. The lower part of the moving rod (3) passes through the hollow hydraulic rod (21) of the hollow jack (2) and the outer sleeve (1) in sequence, extends into the through hole (61), and is fixedly connected to the plug core (6).

2. The replacement tool for a water potential sensor on a hydrological monitoring device according to claim 1, characterized in that, The lower part of the inner wall of the outer sleeve (1) is provided with an embedded groove (11), and the groove wall of the embedded groove (11) is provided with a first internal thread (111). A fixed sleeve (5) is fixedly provided on the cylinder wall (4) of the hydrological monitoring equipment and the plug (6) is located inside the fixed sleeve (5). A first external thread (51) matching the first internal thread (111) is provided on the outer surface of the fixed sleeve (5). The outer sleeve (1) is threadedly connected to the fixed sleeve (5) through the first internal thread (111) and the first external thread (51).

3. The replacement tool for a water potential sensor on a hydrological monitoring device according to claim 2, characterized in that, A support platform (12) is fixedly installed above the inside of the outer sleeve (1). The support platform (12) is located above the inner groove (11). The hollow jack (2) is installed between the inner wall of the outer sleeve (1) and the support platform (12). A notch (13) is provided at the upper part of the outer sleeve (1). The notch (13) is located on the side of the support platform (12).

4. The water potential sensor replacement tool on a hydrological monitoring device according to claim 3, wherein, The support platform (12) has a central hole (121) at its center. The lower part of the moving rod (3) passes through the hollow hydraulic rod (21) of the hollow jack (2), the central hole (121), and the lower part of the outer sleeve (1) in sequence, and extends into the through hole (61) and is fixedly connected to the plug (6).

5. The water potential sensor replacement tool on a hydrological monitoring device according to claim 4, wherein, The lower part of the moving rod (3) is fitted with an expansion sleeve (31), which extends into the through hole (61) and is fixedly connected to the plug (6).

6. The water potential sensor replacement tool on a hydrological monitoring apparatus according to claim 1, wherein, The upper part of the moving rod (3) is provided with a second external thread (32), and the upper part of the moving rod (3) is threadedly connected to the hollow hydraulic rod (21) of the hollow jack (2) through the second external thread (32) and the locking nut (33).

7. The water potential sensor replacement tool on a hydrological monitoring device according to claim 6, wherein, Two locking nuts (33) are provided, and a washer (34) is fixedly provided between the lower locking nut (33) and the hollow hydraulic rod (21) of the hollow jack (2).

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