A fiber grating static level sensor

Abstract

The utility model relates to the technical field of level sensors, and in particular to a fiber grating static level sensor, comprising a sensor body, connectors are fixedly installed at both ends of the sensor body, a sleeve is fixedly installed at one end of the connector, a mounting block is fixedly installed at the connector, a moving block is slidably installed on the mounting block through an adjustment component, support rods are symmetrically fixedly installed on the moving block, a connecting rod is fixedly installed at one end of two of the support rods, a pressure ring is fixedly installed at one end of two of the connecting rods, the pressure ring is sleeved on the sleeve, and the sleeve is divided into a tapered section and a straight section. When the utility model sleeves the hose on the connector and the sleeve, the hose is stably mounted on the level sensor through the mutual cooperation of the mounting block, the adjustment component, the moving block, the support rod, the connecting rod and the pressure ring, the installation is convenient and stable, and the hose is effectively prevented from loosening during use.

Description

Technical Field

[0001] The utility model relates to the technical field of level sensors, in particular to a fiber grating static level sensor. Background Art

[0002] The static level is a precision instrument for measuring height difference and its changes. It is mainly used for monitoring vertical displacement and inclination of pipeline corridors, dams, nuclear power plants, high-rise buildings, foundation pits, etc. During use, multiple static levels and containers are connected with hoses. The relative liquid level of each static level is measured by the static level sensor through differential pressure. The differential pressure of the sensor changes synchronously with the change of liquid level, thereby measuring the liquid level change at each measuring point.

[0003] When the level sensor is in use, the flowing medium needs to be introduced into the level sensor through a hose. When the existing hose is installed on the level sensor, one end needs to be sleeved on the connector, and then a rope is wrapped around the hose to prevent the hose from falling off the connector. This installation method is very inconvenient, and during use, the rope may become loose and the stability is poor. Utility Model Content

[0004] The utility model aims to solve the following shortcomings in the prior art: the hose is very inconvenient to install, and the rope may become loose during use, resulting in poor stability, and a fiber grating static level sensor is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fiber grating static level sensor comprises a sensor body, both ends of the sensor body are fixedly mounted with connectors, and one end of the two connectors is fixedly mounted with a sleeve;

[0007] The connecting head is fixedly mounted with a mounting block, the mounting block is slidably mounted with a moving block through an adjusting assembly, the moving block is symmetrically fixedly mounted with support rods, one end of the two support rods is fixedly mounted with a connecting rod, the connecting head is located between the two connecting rods, one end of the two connecting rods is fixedly mounted with a pressing ring, and the pressing ring is sleeved on the sleeve;

[0008] The sleeve is divided into a tapered section and a straight section.

[0009] Preferably, a rectangular groove is provided on the surface of the mounting block, and the adjustment assembly includes a threaded rod rotatably installed in the rectangular groove and an adjustment block, the movable block is threadedly sleeved on the threaded rod and slidably arranged in the rectangular groove, and one end of the threaded rod passes through the rectangular groove and is fixedly connected to the adjustment block.

[0010] Preferably, a mounting sleeve is fixedly installed at one end of the sleeve, a moving ring is slidably sleeved on the mounting sleeve, a rubber ring is sleeved on the mounting sleeve, two ends of the rubber ring are respectively fixedly connected to the moving ring and the sleeve, and a transmission assembly for driving the moving ring to move is provided on the sleeve.

[0011] Preferably, a plurality of movable grooves are provided on the conical section of the sleeve, a plurality of connecting holes respectively connected to the plurality of movable grooves are provided at one end of the straight section of the sleeve, the transmission assembly includes a plurality of resistance blocks respectively slidably installed in the plurality of movable grooves and a plurality of pull ropes respectively fixedly installed on the plurality of resistance blocks, one end of the pull rope passes through the connecting hole and is fixedly connected to the movable ring.

[0012] Preferably, a resistance pad is fixedly mounted on the upper surface of the resistance block, and the resistance pad is mounted on the resistance block by glue.

[0013] Preferably, a protective ring is fixedly sleeved on the pressure ring.

[0014] In the utility model, the beneficial effects are:

[0015] 1. When the hose is put on the connector and the sleeve, the hose is stably installed on the level sensor through the cooperation of the mounting block, the adjustment assembly, the moving block, the support rod, the connecting rod and the pressure ring. The installation is convenient and stable, and the hose is effectively prevented from loosening during use.

[0016] 2. During the installation of the hose, the transmission assembly and the moving ring cooperate with each other to drive the rubber ring to undergo compression deformation, thereby squeezing the inner wall of the hose, reducing the gap between the hose and the sleeve, and improving the sealing between them. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a fiber grating static level sensor proposed by the utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of a connector, a sleeve and a hose in a fiber grating static level sensor proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of a three-dimensional partial cross-sectional structure of a connector and a sleeve in a fiber grating static level sensor proposed by the utility model;

[0020] Figure 4 This is a three-dimensional structural schematic diagram of a casing in a fiber grating static level sensor proposed by the utility model;

[0021] Figure 5 for Figure 3 A magnified view of the structure in the middle.

[0022] In the figure: 1 sensor body, 2 connector, 3 sleeve, 301 tapered section, 302 straight section, 4 mounting block, 5 moving block, 6 support rod, 7 connecting rod, 8 pressure ring, 9 threaded rod, 10 adjustment block, 11 mounting sleeve, 12 moving ring, 13 rubber ring, 14 resistance block, 15 pull rope. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-Figure 5 A fiber Bragg grating static level sensor comprises a sensor body 1, both ends of the sensor body 1 are fixedly mounted with connectors 2, one end of the two connectors 2 are fixedly mounted with sleeves 3, a mounting block 4 is fixedly mounted on the connector 2, a moving block 5 is slidably mounted on the mounting block 4 through an adjusting component, support rods 6 are symmetrically fixedly mounted on the moving block 5, one end of the two support rods 6 are fixedly mounted with connecting rods 7, the connector 2 is located between the two connecting rods 7, one end of the two connecting rods 7 are fixedly mounted with a pressure ring 8, the pressure ring 8 is sleeved on the sleeve 3, and the sleeve 3 is divided into a tapered section 301 and a straight section 302.

[0025] The hose is a pipe for transporting flowing medium into the level sensor. When in use, the hose needs to be installed on the connector 2 and the sleeve 3. During the installation of the hose, one end of the hose needs to be put on the straight section 302 of the sleeve 3, and then the hose is pushed toward the connector 2. When one end of the hose moves to the tapered section 301 of the sleeve 3, the hose will be deformed, and one end of it will become larger with the tapered section 301 and be put on the tapered section 301. Under the reaction force of the deformation, the hose is stably put on the sleeve 3.

[0026] A rectangular groove is provided on the surface of the mounting block 4, and the adjustment assembly includes a threaded rod 9 and an adjustment block 10 rotatably installed in the rectangular groove. The moving block 5 is threadedly sleeved on the threaded rod 9 and slidably arranged in the rectangular groove. One end of the threaded rod 9 passes through the rectangular groove and is fixedly connected to the adjustment block 10.

[0027] During the installation of the hose, first rotate the adjusting block 10 to drive the threaded rod 9 to rotate, and then drive the moving block 5 to move toward the direction of the sleeve 3 through the threaded rod 9. The moving block 5 then drives the pressing ring 8 to move toward the straight tube section 302 of the sleeve 3 through the support rod 6 and the connecting rod 7. At this time, the distance between the pressing ring 8 and the tapered section 301 of the sleeve 3 becomes larger, so that it is convenient for the hose to be sleeved on the tapered section 301. After one end of the hose is sleeved on the sleeve 3, rotate the adjusting block 10 in the opposite direction to drive the threaded rod 9 to reverse, thereby driving the pressing ring 8 to move toward the connector 2. At this time, the distance between the pressing ring 8 and the tapered section 301 of the sleeve 3 becomes smaller, and the hose sleeved on the sleeve 3 will be squeezed, so that the hose can be stably sleeved on the sleeve 3. The installation is convenient and stable, and the hose can be effectively prevented from falling off the connector 2 and the sleeve 3 when the level sensor is in use.

[0028] A mounting sleeve 11 is fixedly installed at one end of the sleeve 3, and a moving ring 12 is slidably mounted on the mounting sleeve 11. A rubber ring 13 is sleeved on the mounting sleeve 11, and both ends of the rubber ring 13 are respectively fixedly connected to the moving ring 12 and the sleeve 3. The sleeve 3 is provided with a transmission component for driving the moving ring 12 to move. A plurality of moving grooves are provided on the conical section 301 of the sleeve 3, and a plurality of connecting holes respectively connected to the plurality of moving grooves are provided at one end of the straight section 302 of the sleeve 3. The transmission component includes a plurality of resistance blocks 14 respectively slidably mounted in the plurality of moving grooves and a plurality of pull ropes 15 respectively fixedly mounted on the plurality of resistance blocks 14. One end of the pull rope 15 passes through the connecting hole and is fixedly connected to the moving ring 12.

[0029] When one end of the hose moves to the tapered section 301 of the sleeve 3, it will contact the resistance block 14 and, under the action of the friction between them, drive the resistance block 14 to move in the moving groove. During the movement, the resistance block 14 will drive the moving ring 12 to move toward the sleeve 3 through the pull rope 15. The distance between the moving ring 12 and the sleeve 3 becomes shorter, and the rubber ring 13 will be squeezed and deformed. The rubber ring 13 will become thicker and contact the inner wall of the hose, which can effectively reduce the gap between the hose and the sleeve 3 and improve the sealing between them.

[0030] A resistance pad is fixedly mounted on the upper surface of the resistance block 14 , and the resistance pad is mounted on the resistance block 14 by glue. When the hose contacts the resistance block 14 , the resistance pad can effectively increase the friction between them, ensuring that the resistance block 14 can move in the moving groove.

[0031] A protective ring is fixedly sleeved on the pressing ring 8. When the pressing ring 8 contacts the hose, the protective ring can protect the hose.

[0032] In the utility model, during the installation of the hose, the moving block 5 is first driven by the adjusting component to move toward the sleeve 3, and the moving block 5 then drives the pressure ring 8 to move toward the straight section 302 of the sleeve 3 through the support rod 6 and the connecting rod 7. At this time, the distance between the pressure ring 8 and the tapered section 301 of the sleeve 3 becomes larger, and then one end of the hose is pushed to move toward the connecting head 2, so that the hose is sleeved on the straight section 302 and the tapered section 301 of the sleeve 3. After one end of the hose is sleeved on the sleeve 3, the pressure ring 8 is driven by the adjusting component to move toward the connecting head 2. At this time, the distance between the pressure ring 8 and the tapered section 301 of the sleeve 3 becomes smaller, and the hose sleeved on the sleeve 3 is squeezed, so that the hose can be stably sleeved on the sleeve 3, which is convenient and stable to install, and effectively prevents the hose from falling off the connector 2 and the sleeve 3 when the level sensor is in use.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fiber Bragg grating static level sensor, comprising a sensor body (1), characterized in that: Connectors (2) are fixedly mounted on both ends of the sensor body (1), and sleeves (3) are fixedly mounted on one end of the two connectors (2); The connector (2) is fixedly mounted with a mounting block (4), the mounting block (4) is slidably mounted with a moving block (5) via an adjusting assembly, the moving block (5) is symmetrically fixedly mounted with support rods (6), one end of each of the two support rods (6) is fixedly mounted with a connecting rod (7), the connector (2) is located between the two connecting rods (7), one end of each of the two connecting rods (7) is fixedly mounted with a pressing ring (8), and the pressing ring (8) is sleeved on the sleeve (3); The sleeve (3) is divided into a tapered section (301) and a straight section (302).

2. A fiber Bragg grating static level sensor according to claim 1, characterized in that: A rectangular groove is formed on the surface of the mounting block (4); the adjusting assembly comprises a threaded rod (9) rotatably mounted in the rectangular groove and an adjusting block (10); the moving block (5) is threadably sleeved on the threaded rod (9) and slidably arranged in the rectangular groove; one end of the threaded rod (9) passes through the rectangular groove and is fixedly connected to the adjusting block (10).

3. The fiber Bragg grating static level sensor according to claim 1, characterized in that: A mounting sleeve (11) is fixedly mounted on one end of the sleeve (3); a moving ring (12) is slidably mounted on the mounting sleeve (11); a rubber ring (13) is mounted on the mounting sleeve (11); two ends of the rubber ring (13) are respectively fixedly connected to the moving ring (12) and the sleeve (3); and a transmission component for driving the moving ring (12) to move is provided on the sleeve (3).

4. A fiber Bragg grating static level sensor according to claim 3, characterized in that: The conical section (301) of the sleeve (3) is provided with a plurality of movable grooves, and one end of the straight section (302) of the sleeve (3) is provided with a plurality of connecting holes respectively connected to the plurality of movable grooves. The transmission assembly comprises a plurality of resistance blocks (14) respectively slidably mounted in the plurality of movable grooves and a plurality of pull ropes (15) respectively fixedly mounted on the plurality of resistance blocks (14), and one end of the pull rope (15) passes through the connecting hole and is fixedly connected to the movable ring (12).

5. The fiber Bragg grating static level sensor according to claim 4, characterized in that: A resistance pad is fixedly mounted on the upper surface of the resistance block (14), and the resistance pad is mounted on the resistance block (14) by glue.

6. The fiber Bragg grating static level sensor according to claim 1, characterized in that: A protective ring is fixedly sleeved on the pressure ring (8).

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