Magnetic static water level instrument

Abstract

The application belongs to the technical field of level meters, and discloses a magnetic static hydrostatic level, which comprises a base, a shell mounted on the base, a liquid level cylinder connected with the upper end of the shell, a top cover mounted on the liquid level cylinder, a measuring rod mounted in the liquid level cylinder, a floating ball magnetostrictive sensor in sliding connection with the measuring rod, an electronic bin arranged in the shell, two aviation sockets arranged on the shell, and two liquid passing connectors arranged on the shell, a containing groove matched with the bottom of the shell is formed in the upper surface of the base, a plurality of mounting holes in circumferential array are formed through the inner bottom wall of the containing groove, a plurality of threaded blind holes corresponding to the mounting holes are formed in the bottom surface of the shell, and a limiting assembly for limiting the shell is arranged on the base. The application has the effect of reducing the difficulty of connecting the base and the shell for the staff.

Description

Technical Field

[0001] This utility model relates to the field of leveling instruments, and in particular to a magnetic hydrostatic leveling instrument. Background Technology

[0002] A static level is a precision instrument for measuring elevation differences and their changes. It is mainly used for monitoring vertical displacement and tilt in pipe corridors, dams, nuclear power plants, high-rise buildings, foundation pits, tunnels, bridges, subways, etc. Static levels are generally installed on piers of equal height to the object being measured or on the contour lines of the wall of the object being measured. Typically, data is automatically collected and stored in the field acquisition system through a stand-alone acquisition box with built-in software. The data is then transmitted to the backend network software via wired or wireless communication, thereby achieving automated detection.

[0003] Chinese utility model patent CN223216893U discloses a hydrostatic level for sedimentation monitoring, comprising a measuring cylinder and a float-type magnetostrictive sensor. The measuring cylinder includes a transparent liquid level cylinder with a top cover with vent holes at the top and a housing connected to the bottom. The housing has two liquid inlets communicating with the upper chamber at the top, two aviation sockets at the bottom, and a base sealed at the bottom. The float-type magnetostrictive sensor is installed inside the measuring cylinder with the measuring rod vertically upward. The upper and lower chambers of the housing are separated by a fixing seat sleeved on the outside of the measuring rod. Its electronic compartment is built into the lower chamber and connected to the two aviation sockets. Its magnetic float is located inside the liquid level cylinder. This hydrostatic level for sedimentation monitoring not only solves the problem of accuracy degradation caused by long-term use of traditional sensors, but also utilizes the liquid level change at the sedimentation monitoring point to drive the liquid level float to sink, thereby achieving long-term remote monitoring of the sedimentation at the location through changes in liquid level height.

[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: The device connects the outer casing and the base using fixing bolts. During use, operators must pre-drill cylindrical threaded blind holes in the bottom of the outer casing and then pass the fixing bolts through the base to connect with the outer casing. In actual use, before installing the fixing bolts, operators must manually press the base against the outer casing and maintain stability, making single-person operation difficult and resulting in a poor user experience. Utility Model Content

[0005] To solve the above problems, this utility model provides a magnetic hydrostatic level.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a magnetic hydrostatic level, comprising a base, a housing mounted on the base, a liquid level cylinder connected to the upper end of the housing, a top cover mounted on the liquid level cylinder, a measuring rod mounted inside the liquid level cylinder, a float-type magnetostrictive sensor slidably connected to the measuring rod, an electronic compartment disposed inside the housing, two aviation sockets disposed on the housing, and two liquid transfer connectors disposed on the housing. The upper surface of the base is provided with a receiving groove that matches the bottom of the housing. The inner bottom wall of the receiving groove is provided with a plurality of mounting holes arranged in a circumferential array. The bottom surface of the housing is provided with a plurality of threaded blind holes corresponding one-to-one with the mounting holes. The base is provided with a limiting component for limiting the housing.

[0007] By adopting the above technical solution, when staff need to monitor the settlement of the wall to be tested, they must first fix multiple plate-like objects to the wall and then connect multiple bases to the upper ends of the plate-like objects sequentially using long bolts, thus connecting the bases to the wall. Next, staff must use one of the settlement monitoring hydrostatic levels as the working benchmark, placing it in a stable location on the wall that is easy to observe and unaffected by structural deformation. The remaining hydrostatic levels are then placed at each observation and monitoring point, with an interval of 20 meters between adjacent observation points, and the working benchmark and each observation point are at the same horizontal level. Furthermore, staff must connect the two aviation sockets on each settlement monitoring hydrostatic level to the plugs on the signal receiving device at the construction site via cables, so that the position change signals monitored by the electronic chamber are transmitted to the signal receiving device in real time. Simultaneously, a liquid connecting pipe is used to connect the two adjacent liquid connectors on every two adjacent settlement monitoring hydrostatic levels, connecting the upper chambers of multiple hydrostatic levels in series.

[0008] Subsequently, the staff needs to open the top cover of one of the hydrostatic level instruments and pour the monitoring liquid (preferably antifreeze) into the liquid level cylinder. Based on the principle of communicating vessels, the initial liquid level of the monitoring liquid in the liquid level cylinders of each hydrostatic level instrument is the same. The magnetic float in the liquid level cylinder floats up under the buoyancy of the monitoring liquid. When the magnetic float stabilizes, the electronic chamber of the float-type magnetostrictive sensor measures the position of the magnetic float on the measuring rod as the initial liquid level position and sends it to the signal receiving device at the construction site. This allows the hydrostatic level instrument to monitor the settlement of the wall to be tested.

[0009] When workers need to install the base and the outer shell, they need to connect the lower end of the outer shell to the receiving groove and rotate the outer shell. This will connect the sliding block to the arc-shaped groove, thus initially stabilizing the outer shell under the action of the sliding block. During this process, the limiting device automatically activates and limits the sliding block, thereby reducing the probability of the outer shell separating from the base under external force, and thus reducing the difficulty for workers to subsequently fix the base and the outer shell together.

[0010] Furthermore, the upper surface of the base is provided with a sliding groove that communicates with the receiving groove, and the inner wall of the sliding groove is provided with an arc-shaped groove. The limiting component includes a sliding block that is slidably disposed in the sliding groove and a limiting device disposed on the base for limiting the sliding block. The sliding block is fixed to the side wall of the outer shell.

[0011] By adopting the above technical solution, when workers need to fix the base and the outer shell together, they need to pass the fixing bolts through the mounting holes and connect them to the threaded blind holes. Before this, workers need to connect the sliding block to the sliding groove, which connects the outer shell to the receiving groove. Subsequently, when the outer shell is pressed against the inner bottom wall of the receiving groove, workers only need to rotate the outer shell, which will cause the sliding block to rotate with the outer shell, thereby connecting the sliding block to the arc-shaped groove. The limiting device automatically blocks the sliding block, thus keeping the sliding block and the outer shell stable. This reduces the probability of the base and the outer shell separating when workers install the fixing bolts, thereby reducing the difficulty of installing the base and the outer shell.

[0012] Furthermore, a limiting groove is formed on the inner top wall of the arc-shaped groove. The limiting device includes a limiting rod slidably disposed in the limiting groove, a compression spring fixed at one end to the upper surface of the limiting rod, and a connecting rope fixed at one end to the upper surface of the limiting rod. The other end of the compression spring is fixed on the inner top wall of the limiting groove. An inclined surface is formed on the edge where the bottom surface of the limiting rod intersects with the side wall near the sliding groove.

[0013] By adopting the above technical solution, after the operator connects the outer shell to the receiving groove, the operator only needs to rotate the outer shell to connect the sliding block to the arc-shaped groove, thereby causing the sliding block to press against the inclined surface. This allows the limiting rod to move upwards completely into the limiting groove under the action of the sliding block. Subsequently, when the sliding block passes the limiting rod, the limiting rod automatically resets under the action of the compression spring, thus blocking the sliding block and initially stabilizing the sliding block and the outer shell.

[0014] Furthermore, an arc-shaped block is slidably disposed within the arc-shaped groove, and the arc-shaped block is fixed to the end of the connecting rope away from the limiting rod.

[0015] Furthermore, a support spring is fixed on the side wall of the arc-shaped block away from the sliding block, and the other end of the support spring is fixed to the inner wall of the arc-shaped groove.

[0016] By adopting the above technical solution, when the limiting rod blocks one side of the sliding block, the arc-shaped block and the supporting spring cooperate to block the other side of the sliding block. When the operator needs to separate the outer shell from the base, the operator needs to rotate the outer shell to make the sliding block press against the arc-shaped block, thereby moving the arc-shaped block away from the limiting rod. This causes the limiting rod to move upward and return to the limiting groove under the combined action of the arc-shaped block and the connecting rope. At this point, the operator only needs to quickly rotate the outer shell in the opposite direction to separate the sliding block from the arc-shaped groove, thus reducing the difficulty of separating the outer shell from the base.

[0017] Furthermore, an arc-shaped stop is provided on the inner bottom wall of the arc-shaped groove to block the arc-shaped block.

[0018] By adopting the above technical solution, when the sliding block and the arc block are separated, the arc block automatically resets under the action of the support spring. At this time, the arc block blocks the arc block, thereby reducing the probability that the arc block will be displaced under the action of external force, and thus increasing the force required for the operator to drive the arc block to move, thereby reducing the probability that the sliding block will change position under unintentional external force.

[0019] Furthermore, a stabilizing rod is fixed on the side wall of the arc-shaped block away from the sliding block, and the stabilizing rod is slidably connected to the inner wall of the arc-shaped groove.

[0020] Furthermore, the arc-shaped stop is an arc-shaped stop made of silicone.

[0021] In summary, this utility model has the following beneficial effects: 1. In this application, when the worker needs to install the base and the outer shell, the worker needs to connect the lower end of the outer shell with the receiving groove and rotate the outer shell to connect the sliding block with the arc-shaped groove, thereby initially stabilizing the outer shell under the action of the sliding block. During this process, the limiting device automatically opens and limits the sliding block, thereby reducing the probability that the outer shell will separate from the base under the action of external force, and thus reducing the difficulty for the worker to fix the base and the outer shell together afterward; 2. In this application, when the worker needs to fix the base and the outer shell together, the worker needs to pass the fixing bolt through the mounting hole and connect it to the threaded blind hole. Before this, the worker needs to connect the sliding block to the sliding groove, which connects the outer shell to the receiving groove. Subsequently, when the outer shell is pressed against the inner bottom wall of the receiving groove, the worker only needs to rotate the outer shell, which will cause the sliding block to rotate with the outer shell, thereby connecting the sliding block to the arc groove and causing the limiting device to automatically block the sliding block, thus keeping the sliding block and the outer shell stable. This reduces the probability of the base and the outer shell separating when the worker installs the fixing bolt, thereby reducing the difficulty of the worker installing the base and the outer shell. 3. In this application, after the operator connects the outer shell to the receiving groove, the operator only needs to rotate the outer shell to connect the sliding block to the arc-shaped groove, thereby causing the sliding block to press against the inclined surface. This allows the limiting rod to move upward completely into the limiting groove under the action of the sliding block. Subsequently, when the sliding block passes the limiting rod, the limiting rod automatically resets under the action of the compression spring, thereby blocking the sliding block and initially stabilizing the sliding block and the outer shell. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the electronic compartment and its connection structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the arc-shaped groove and its connection structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the sliding block and its connection structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the limiting groove and its connection structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the limiting device and its connection structure according to an embodiment of the present utility model.

[0023] In the diagram: 1. Base; 11. Housing; 2. Liquid level cylinder; 21. Top cover; 3. Measuring rod; 31. Float-type magnetostrictive sensor; 32. Electronic compartment; 33. Aviation socket; 34. Liquid transfer connector; 4. Receiving tank; 41. Mounting hole; 42. Threaded blind hole; 43. Sliding groove; 44. Arc groove; 5. Limiting assembly; 51. Sliding block; 52. Limiting groove; 6. Limiting device; 61. Limiting rod; 62. Compression spring; 63. Connecting rope; 7. Arc block; 71. Support spring; 8. Arc stop; 81. Stabilizing rod. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] like Figure 1-6 As shown in the illustration, this application discloses a magnetic hydrostatic level, comprising a base 1, a housing 11, a level cylinder 2, a top cover 21, a measuring rod 3, a float-type magnetostrictive sensor 31, an electronic chamber 32, an aviation socket 33, a liquid transfer connector 34, a limiting component 5, an arc-shaped block 7, a support spring 71, an arc-shaped stop 8, and a stabilizing rod 81. The housing 11 is mounted on the base 1, and the level cylinder 2 is connected to the upper end of the housing 11. The top cover 21 is mounted on the level cylinder 2 to seal it. The measuring rod 3 is mounted inside the level cylinder 2, and the float-type magnetostrictive sensor 31 is slidably connected to the measuring rod 3. The electronic chamber 32 is disposed inside the housing 11, two aviation sockets 33 are provided and sequentially disposed on the housing 11, and two liquid transfer connectors 34 are provided and sequentially disposed on the housing 11. The upper surface of the base 1 is provided with a receiving groove 4 that matches the bottom of the outer shell 11. Multiple mounting holes 41 arranged in a circular array are provided through the inner bottom wall of the receiving groove 4, and multiple threaded blind holes 42 corresponding to the mounting holes 41 are provided on the bottom surface of the outer shell 11.

[0026] The upper surface of the base 1 has a sliding groove 43 that communicates with the receiving groove 4. The inner wall of the sliding groove 43 has an arc-shaped groove 44. The limiting component 5 is disposed on the base 1 and is used to limit the outer shell 11. The limiting component 5 includes a sliding block 51 and a limiting device 6. The sliding block 51 has a block structure and is slidably disposed in the sliding groove 43. The sliding block 51 is fixed to the side wall of the outer shell 11.

[0027] When the operator needs to fix the base 1 and the outer shell 11 together, the operator needs to pass the fixing bolt through the mounting hole 41 and connect it to the threaded blind hole 42. Before this, the operator needs to connect the sliding block 51 to the sliding groove 43, which will connect the outer shell 11 to the receiving groove 4. Subsequently, when the outer shell 11 is pressed against the inner bottom wall of the receiving groove 4, the operator only needs to rotate the outer shell 11, which will cause the sliding block 51 to rotate with the outer shell 11, thereby connecting the sliding block 51 to the arc groove 44. The limiting device 6 will automatically block the sliding block 51, thus keeping the sliding block 51 and the outer shell 11 stable. This reduces the probability of the base 1 and the outer shell 11 separating when the operator installs the fixing bolt, and thus reduces the difficulty of the operator installing the base 1 and the outer shell 11.

[0028] A limiting groove 52 is formed on the inner top wall of the arc-shaped groove 44. A limiting device 6 is set on the base 1 to limit the sliding block 51. The limiting device 6 includes a limiting rod 61, a compression spring 62, and a connecting rope 63. The limiting rod 61 is a rectangular rod structure. The limiting rod 61 is slidably set in the limiting groove 52, and an inclined surface is formed on the edge where the bottom surface of the limiting rod 61 intersects with the side wall near the sliding groove 43. One end of the compression spring 62 is fixed to the upper surface of the limiting rod 61, and the other end of the compression spring 62 is fixed to the inner top wall of the limiting groove 52. One end of the connecting rope 63 is fixed to the upper surface of the limiting rod 61.

[0029] After the operator connects the outer casing 11 to the receiving groove 4, the operator only needs to rotate the outer casing 11 to connect the sliding block 51 to the arc-shaped groove 44, thereby causing the sliding block 51 to press against the inclined surface. This allows the limiting rod 61 to move upwards completely into the limiting groove 52 under the action of the sliding block 51. Subsequently, when the sliding block 51 passes the limiting rod 61, the limiting rod 61 automatically resets under the action of the compression spring 62, thereby blocking the sliding block 51 and initially stabilizing the sliding block 51 and the outer casing 11.

[0030] The arc-shaped block 7 has an arc-shaped structure. The arc-shaped block 7 is slidably disposed in the arc-shaped groove 44, and the arc-shaped block 7 is fixed to the end of the connecting rope 63 away from the limiting rod 61.

[0031] One end of the support spring 71 is fixed to the side wall of the arc-shaped block 7 away from the sliding block 51, and the other end of the support spring 71 is fixed to the inner wall of the arc-shaped groove 44. When the limiting rod 61 blocks one side of the sliding block 51, the arc-shaped block 7 and the support spring 71 cooperate to block the other side of the sliding block 51. When the operator needs to separate the outer shell 11 from the base 1, the operator needs to rotate the outer shell 11 to make the sliding block 51 press against the arc-shaped block 7, thereby moving the arc-shaped block 7 away from the limiting rod 61. Then, the limiting rod 61 moves upward and returns to the limiting groove 52 under the combined action of the arc-shaped block 7 and the connecting rope 63. At this time, the operator only needs to quickly rotate the outer shell 11 in the opposite direction to separate the sliding block 51 from the arc-shaped groove 44, thereby reducing the difficulty for the operator to separate the outer shell 11 from the base 1.

[0032] The arc-shaped stop 8 is a semi-circular block structure, located on the inner bottom wall of the arc-shaped groove 44, used to block the arc-shaped block 7, and is made of silicone. When the sliding block 51 separates from the arc-shaped block 7, the arc-shaped block 7 automatically resets under the action of the support spring 71. At this time, the arc-shaped stop 8 blocks the arc-shaped block 7, thereby reducing the probability of the arc-shaped block 7 being displaced under the action of external force, thus increasing the force required for the operator to drive the arc-shaped block 7 to move, thereby reducing the probability of the sliding block 51 changing position unintentionally under external force.

[0033] The stabilizer bar 81 is a round bar structure. The stabilizer bar 81 is fixed on the side wall of the arc block 7 away from the sliding block 51, and the stabilizer bar 81 is slidably connected to the inner wall of the arc groove 44.

[0034] The operating principle of a magnetic hydrostatic level in this embodiment is as follows: When staff need to monitor the settlement of a wall to be tested, they first fix multiple plate-like objects to the wall and then connect multiple bases 1 to the upper ends of the plate-like objects using long bolts, thus connecting the bases 1 to the wall. Then, the staff uses one of the settlement monitoring hydrostatic levels as the working reference point, placing it in a stable location on the wall that is easy to observe and unaffected by structural deformation. The remaining hydrostatic levels are then placed at each observation and monitoring point, with a 20m interval between adjacent observation points, and the working reference point and all observation points are at the same horizontal level. Furthermore, the staff needs to connect the two aviation sockets 33 on each of the settlement monitoring hydrostatic level instruments to the plugs on the signal receiving device at the construction site via cables, so that the position change signals monitored by the electronic chamber 32 can be sent to the signal receiving device in real time; at the same time, the two liquid connectors 34 on each of the two adjacent settlement monitoring hydrostatic level instruments are connected by liquid connecting pipes, so that the upper chambers of multiple hydrostatic level instruments are connected in series.

[0035] Subsequently, the staff needs to open the top cover 21 of one of the hydrostatic level instruments and pour the monitoring liquid (preferably antifreeze) into the liquid level cylinder 2. Based on the principle of communicating vessels, the initial liquid level of the monitoring liquid in the liquid level cylinder 2 of each hydrostatic level instrument is the same. The magnetic float in the liquid level cylinder 2 floats up under the buoyancy of the monitoring liquid. When the magnetic float stabilizes, the electronic chamber 32 of the float-type magnetostrictive sensor 31 is used to measure the position of the magnetic float on the measuring rod 3 as the initial liquid level position and send it to the signal receiving device at the construction site. This allows the hydrostatic level instrument to monitor the settlement of the wall to be tested.

[0036] When the worker needs to install the base 1 and the outer shell 11, the worker needs to connect the lower end of the outer shell 11 with the receiving groove 4 and rotate the outer shell 11 to connect the sliding block 51 with the arc-shaped groove 44, thereby initially stabilizing the outer shell 11 under the action of the sliding block 51. During this process, the limiting device 6 automatically opens and limits the sliding block 51, thereby reducing the probability that the outer shell 11 will separate from the base 1 under the action of external force, and thus reducing the difficulty for the worker to fix the base 1 and the outer shell 11 together afterward.

[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A magnetic hydrostatic level, comprising a base (1), a housing (11) mounted on the base (1), a liquid level cylinder (2) connected to the upper end of the housing (11), a top cover (21) mounted on the liquid level cylinder (2), a measuring rod (3) mounted inside the liquid level cylinder (2), a float-type magnetostrictive sensor (31) slidably connected to the measuring rod (3), an electronic compartment (32) disposed inside the housing (11), two aviation sockets (33) disposed on the housing (11), and two liquid transfer connectors (34) disposed on the housing (11), characterized in that: The upper surface of the base (1) is provided with a receiving groove (4) that matches the bottom of the outer shell (11). The inner bottom wall of the receiving groove (4) is provided with a plurality of mounting holes (41) arranged in a circular array. The bottom surface of the outer shell (11) is provided with a plurality of threaded blind holes (42) that correspond one-to-one with the mounting holes (41). The base (1) is provided with a limiting component (5) for limiting the outer shell (11).

2. The magnetic hydrostatic level according to claim 1, characterized in that: The upper surface of the base (1) is provided with a sliding groove (43) that communicates with the receiving groove (4). An arc groove (44) is provided on the inner wall of the sliding groove (43). The limiting component (5) includes a sliding block (51) that is slidably disposed in the sliding groove (43) and a limiting device (6) disposed on the base (1) for limiting the sliding block (51). The sliding block (51) is fixed to the side wall of the outer shell (11).

3. A magnetic hydrostatic level according to claim 2, characterized in that: A limiting groove (52) is provided on the inner top wall of the arc groove (44). The limiting device (6) includes a limiting rod (61) slidably disposed in the limiting groove (52), a compression spring (62) with one end fixed to the upper surface of the limiting rod (61), and a connecting rope (63) with one end fixed to the upper surface of the limiting rod (61). The other end of the compression spring (62) is fixed to the inner top wall of the limiting groove (52). An inclined surface is provided on the edge where the bottom surface of the limiting rod (61) intersects with the side wall near the sliding groove (43).

4. A magnetic hydrostatic level according to claim 3, characterized in that: An arc-shaped block (7) is slidably disposed in the arc-shaped groove (44), and the arc-shaped block (7) is fixed to one end of the connecting rope (63) away from the limiting rod (61).

5. A magnetic hydrostatic level according to claim 4, characterized in that: A support spring (71) is fixed on the side wall of the arc-shaped block (7) away from the sliding block (51), and the other end of the support spring (71) is fixed to the inner wall of the arc-shaped groove (44).

6. A magnetic hydrostatic level according to claim 5, characterized in that: The inner bottom wall of the arc groove (44) is provided with an arc-shaped stop (8) for blocking the arc-shaped block (7).

7. A magnetic hydrostatic level according to claim 6, characterized in that: A stabilizing rod (81) is fixed on the side wall of the arc-shaped block (7) away from the sliding block (51), and the stabilizing rod (81) is slidably connected to the inner wall of the arc-shaped groove (44).

8. A magnetic hydrostatic level according to claim 7, characterized in that: The arc-shaped stop (8) is an arc-shaped stop (8) made of silicone.

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