Short circuit prevention water level electrode

Abstract

The utility model relates to the technical field of electrodes, in particular to an anti-short-circuit water level electrode which comprises an electrode tip, a water level sensor and a water level sensor. The connecting device which can be stably and quickly assembled and disassembled is fixedly connected with the surface of the electrode tip, and one end of the connecting device is fixedly connected with the electrode bar; when in use, the connecting strip and the positioning block in the locking mechanism are respectively arranged in the mounting groove and the positioning ring groove, so that external dust, water vapor and other impurities cannot interfere with normal locking of the locking mechanism, and a worker does not need to actively adjust the position of the positioning block when needing to connect the electrode tip and the electrode bar together; and when the electrode tip and the electrode bar need to be detached, the positioning block and the positioning ring groove can be separated only by moving the connecting rope, so that the subsequent disassembly and assembly difficulty of a worker is not increased, and the worker can conveniently carry out subsequent maintenance work.

Description

Technical Field

[0001] The utility model relates to the technical field of electrodes, in particular to a short-circuit-proof water level electrode. Background Art

[0002] The water level electrode is the main tool for detecting the water level in containers such as boilers. In traditional water level electrodes, it is a tool for measuring water level, and the working principle of the water level electrode is to measure the water level with the help of the conductivity of water or steam, thereby sending specific water level data to the outside world. Many water level electrodes have display lights, which will light up according to different resistance sizes. People can also judge the depth of the water level according to the number of display lights.

[0003] At present, a Chinese patent discloses an anti-short-circuit water level electrode (publication number CN218973581U). The utility model presses an outer sealing ring between a sealing plate and an inner thread sealing sleeve to prevent the connection between the inner thread sealing sleeve and the outer thread connecting sleeve from being corroded or oxidized, and then performs secondary sealing in combination with the inner sealing ring to prevent the positive or negative terminal from being short-circuited and damaged by water, thereby ensuring the service life of the water level electrode.

[0004] Since the anti-slip reinforcement component in the above device is tightened into the threaded locking hole on the T-shaped connecting sleeve through a threaded locking rod, this can prevent the connection between the internal threaded sealing sleeve and the external threaded connecting sleeve from loosening. However, the anti-slip reinforcement component is directly exposed to the outside and is easily blocked and rusted by external impurities such as moisture, dust, etc. after long-term use. This undoubtedly increases the difficulty for staff to disassemble and assemble the anti-slip reinforcement component, and is inconvenient for staff to perform subsequent maintenance.

[0005] Therefore, a short-circuit-proof water level electrode is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-short circuit water level electrode in order to solve the above problems, thereby improving the problem that the anti-slip reinforcement components in the existing anti-short circuit water level electrode are easily blocked and corroded by the external environment, which increases the difficulty of subsequent maintenance for the staff.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: a short-circuit proof water level electrode, comprising: an electrode head, one end of the electrode head is electrically connected to an electrode rod; a connecting device, the connecting device can be stably and quickly loaded and unloaded and fixedly connected to the surface of the electrode head, one end of the connecting device is fixedly connected to the electrode rod; the connecting device comprises an internal threaded barrel fixedly connected to the other end of the electrode head, the inner side thread of the internal threaded barrel is connected to an external threaded sleeve fixedly connected to the electrode rod, the surface of the external threaded sleeve is fixedly connected to a mounting ring, the surface of the mounting ring is provided with a sealing ring in contact with the internal threaded barrel, and the surface of the internal threaded barrel is provided with a locking mechanism clamped to the mounting ring.

[0008] Preferably, one end of the internal threaded barrel is provided with an installation groove, one end of the installation ring is provided with a positioning ring groove, and the locking mechanism includes a connecting strip slidably connected to the inside of the installation groove, one end of the connecting strip is fixedly connected to a positioning block that is engaged with the positioning ring groove, and a connecting rope is fixedly connected to the surface of the connecting strip, one end of the connecting rope passes through the spring and the installation groove in sequence and extends to the outside of the internal threaded barrel, and the connecting strip and the positioning block in the locking mechanism are respectively arranged inside the installation groove and the positioning ring groove when in use. At this time, external impurities such as dust and water vapor cannot interfere with its normal locking. When the electrode head and the electrode rod need to be separated, the positioning block can be separated from the positioning ring groove by moving the connecting rope. This does not increase the difficulty of subsequent disassembly and assembly for the staff, and is convenient for the staff to carry out subsequent maintenance work.

[0009] Preferably, the cross-sectional shape of the positioning block is a right triangle, and the inclined surface of the positioning block faces the electrode rod. When the staff needs to connect the electrode head and the electrode rod together, there is no need to actively adjust the position of the positioning block, making the installation more convenient for the staff.

[0010] Preferably, a spring is fixedly connected to the surface of the connecting strip, and one end of the spring is in contact with the mounting groove, which enables the positioning block to be more tightly connected to the positioning ring groove to ensure the anti-slip reinforcement effect of the locking mechanism.

[0011] Preferably, the spring is a rubber material component, and the spring is always in a compressed state, which can ignore the limitation of space to ensure that the spring can function normally.

[0012] Preferably, one end of the connecting rope is rotatably connected to a pull ring, and the corners of the pull ring are rounded, which enables the staff to pull the connecting rope more easily.

[0013] Preferably, a guide column is fixedly connected to the inner wall of the mounting groove, and one end of the guide column passes through the connecting strip and extends to the outside of the connecting strip, which can confine the connecting strip inside the mounting groove to prevent the connecting strip from loosening or falling off.

[0014] Preferably, a first elastic block is provided on the surface of the pull ring, and one end of the first elastic block is fixedly connected to the internal threaded tube, which can prevent the pull ring from shaking when not in use.

[0015] Preferably, the locking mechanism also includes a second elastic block fixedly connected to the internal threaded cylinder, and the spacing between the second elastic block and the connecting rope is the same as the total length of the pull ring and the positioning block, which can lock the pull ring in place after being pulled. At this time, the second elastic block prevents the positioning block from moving back through the pull ring, connecting rope and connecting strip, and there is no need for the staff to continuously pull the pull ring.

[0016] Preferably, a sealing gasket is fixedly connected to the surface of the connecting rope, and the sealing gasket is in contact with the internal threaded cylinder, which can seal the gap between the connecting rope and the internal threaded cylinder, further preventing external impurities such as dust and water vapor from interfering with the connecting strip and the positioning block, thereby ensuring that the locking mechanism can function normally.

[0017] The beneficial effects of the utility model are:

[0018] 1. The connecting strip and the positioning block in the locking mechanism are respectively arranged inside the installation groove and the positioning ring groove when in use. At this time, dust, water vapor and other impurities in the outside cannot interfere with its normal locking. When the staff needs to connect the electrode head and the electrode rod together, there is no need to actively adjust the position of the positioning block. When the electrode head and the electrode rod need to be separated, the positioning block can be separated from the positioning ring groove by moving the connecting rope. This does not increase the difficulty of subsequent disassembly and assembly for the staff, and is convenient for the staff to carry out subsequent maintenance work;

[0019] 2. The sealing gasket can seal the gap between the connecting rope and the internal threaded tube, further preventing external impurities such as dust and water vapor from interfering with the connecting strip and the positioning block, so as to ensure that the locking mechanism can function normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a cross-sectional schematic diagram of a partially cut structure of the utility model;

[0022] Figure 3 It is an exploded schematic diagram of the locking mechanism in the utility model;

[0023] Figure 4 for Figure 2 A is an enlarged view of the middle image.

[0024] In the figure: 1. electrode head; 2. electrode rod; 3. connecting device; 31. internal threaded cylinder; 311. mounting groove; 32. external threaded sleeve; 33. mounting ring; 331. positioning ring groove; 34. sealing ring; 35. locking mechanism; 351. connecting strip; 352. positioning block; 353. spring; 354. connecting rope; 355. pull ring; 356. guide column; 357. first elastic block; 358. second elastic block; 359. sealing gasket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] When implementing: Figure 1-4 As shown, a short-circuit proof water level electrode comprises: an electrode head 1, one end of the electrode head 1 is electrically connected to an electrode rod 2; a connecting device 3, the connecting device 3 can be stably and quickly loaded and unloaded and fixedly connected to the surface of the electrode head 1, one end of the connecting device 3 is fixedly connected to the electrode rod 2; the connecting device 3 comprises an internal threaded barrel 31 fixedly connected to the other end of the electrode head 1, the inner side of the internal threaded barrel 31 is threadedly connected to an external threaded sleeve 32 fixedly connected to the electrode rod 2, the surface of the external threaded sleeve 32 is fixedly connected to a mounting ring 33, the surface of the mounting ring 33 is sleeved with a sealing ring 34 in contact with the internal threaded barrel 31, and the surface of the internal threaded barrel 31 is mounted with a locking mechanism 35 engaged with the mounting ring 33.

[0027] like Figure 3 and Figure 4 As shown, a mounting groove 311 is provided at one end of the internal threaded barrel 31, a positioning ring groove 331 is provided at one end of the mounting ring 33, and the locking mechanism 35 includes a connecting strip 351 slidably connected to the inside of the mounting groove 311, and one end of the connecting strip 351 is fixedly connected to a positioning block 352 engaged with the positioning ring groove 331; the cross-sectional shape of the positioning block 352 is a right triangle, and the inclined surface of the positioning block 352 faces the electrode rod 2; a spring 353 is fixedly connected to the surface of the connecting strip 351, and one end of the spring 353 is in contact with the mounting groove 311; the spring 353 is a rubber material component, and the spring 353 is always in a compressed state; a guide column 356 is fixedly connected to the inner wall of the mounting groove 311, and one end of the guide column 356 passes through the connecting strip 351 and extends to the outside of the connecting strip 351.

[0028] like Figure 3 and Figure 4 As shown, a connecting rope 354 is fixedly connected to the surface of the connecting strip 351, and one end of the connecting rope 354 passes through the spring 353 and the mounting groove 311 in sequence and extends to the outside of the internal threaded tube 31; one end of the connecting rope 354 is rotatably connected to a pull ring 355, and the corners of the pull ring 355 are rounded; a first elastic block 357 is provided on the surface of the pull ring 355, and one end of the first elastic block 357 is fixedly connected to the internal threaded tube 31; the locking mechanism 35 also includes a second elastic block 358 fixedly connected to the internal threaded tube 31, and the spacing between the second elastic block 358 and the connecting rope 354 is the same as the total length of the pull ring 355 and the positioning block 352; a sealing gasket 359 is fixedly connected to the surface of the connecting rope 354, and the sealing gasket 359 is in contact with the internal threaded tube 31.

[0029] The working principle of the utility model is as follows:

[0030] When the staff needs to connect the electrode head 1 with the electrode rod 2, the staff only needs to thread the electrode rod 2 together with the external threaded sleeve 32 into the inner side of the internal threaded barrel 31, and the internal threaded barrel 31 can drive the electrode rod 2 to move upward. When the external threaded sleeve 32 and the internal threaded barrel 31 are connected in place, the electrode head 1 is just electrically connected to the electrode rod 2, and the mounting ring 33 cooperates with the internal threaded barrel 31 to squeeze the sealing ring 34. At this time, the gap between the internal threaded barrel 31 and the mounting ring 33 is blocked by the sealing ring 34.

[0031] When the external threaded sleeve 32 drives the mounting ring 33 to spirally move upward, the mounting ring 33 drives the positioning ring groove 331 to gradually approach the positioning block 352. When the positioning ring groove 331 contacts the inclined surface of the positioning block 352, the positioning ring groove 331 squeezes the inclined surface of the positioning block 352 and pushes the positioning block 352. The positioning block 352 drives the connecting strip 351 to squeeze the spring 353. When the external threaded sleeve 32 and the internal threaded barrel 31 are connected in place, the positioning block 352 completely enters the interior of the positioning ring groove 331 and aligns with the positioning ring groove 331. At this time, the positioning block 352 loses its obstruction, and the spring 353 drives the positioning block 352 to be tightly clamped with the positioning ring groove 331 through the connecting strip 351, thereby preventing the internal threaded barrel 31 and the mounting ring 33 from loosening and separating.

[0032] When the staff needs to separate the electrode head 1 from the electrode rod 2, the staff first pulls out the pull ring 355 from the first elastic block 357, and then pulls the pull ring 355, the pull ring 355 drives the connecting rope 354 to move outward, the connecting rope 354 pulls the connecting strip 351, the connecting strip 351 drives the positioning block 352 to separate from the positioning ring groove 331, and then the staff inserts the pull ring 355 into the second elastic block 358. At this time, the second elastic block 358 prevents the positioning block 352 from moving back through the pull ring 355, the connecting rope 354 and the connecting strip 351, and the staff can easily separate the external threaded sleeve 32 from the internal threaded barrel 31, and the electrode head 1 and the electrode rod 2 are separated together;

[0033] Compared with the existing anti-slip reinforcement components, the connecting strip 351 and the positioning block 352 in the locking mechanism 35 are respectively arranged inside the installation groove 311 and the positioning ring groove 331 when in use. At this time, external impurities such as dust and water vapor cannot interfere with its normal locking, and the staff does not need to actively adjust the position of the positioning block 352 when they need to connect the electrode head 1 and the electrode rod 2 together. When the electrode head 1 and the electrode rod 2 need to be separated, they only need to move the connecting rope 354 to separate the positioning block 352 from the positioning ring groove 331. This does not increase the difficulty of subsequent disassembly and assembly for the staff, and is convenient for the staff to carry out subsequent maintenance work.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A short-circuit proof water level electrode, characterized in that: include: An electrode head (1), one end of the electrode head (1) being electrically connected to an electrode rod (2); A connecting device (3), which can be stably and quickly assembled and disassembled, is fixedly connected to the surface of the electrode head (1), and one end of the connecting device (3) is fixedly connected to the electrode rod (2); The connecting device (3) comprises an internal threaded barrel (31) fixedly connected to the other end of the electrode head (1); the inner side of the internal threaded barrel (31) is threadedly connected to an external threaded sleeve (32) fixedly connected to the electrode rod (2); the surface of the external threaded sleeve (32) is fixedly connected to a mounting ring (33); the surface of the mounting ring (33) is sleeved with a sealing ring (34) in contact with the internal threaded barrel (31); and the surface of the internal threaded barrel (31) is provided with a locking mechanism (35) engaged with the mounting ring (33).

2. The short-circuit proof water level electrode according to claim 1, characterized in that: One end of the internally threaded barrel (31) is provided with a mounting groove (311), one end of the mounting ring (33) is provided with a positioning ring groove (331), and the locking mechanism (35) comprises a connecting strip (351) slidably connected to the inside of the mounting groove (311), one end of the connecting strip (351) is fixedly connected to a positioning block (352) engaged with the positioning ring groove (331), and a connecting rope (354) is fixedly connected to the surface of the connecting strip (351), and one end of the connecting rope (354) passes through the spring (353) and the mounting groove (311) in sequence and extends to the outside of the internally threaded barrel (31).

3. The short-circuit proof water level electrode according to claim 2, characterized in that: The cross-sectional shape of the positioning block (352) is a right triangle, and the inclined surface of the positioning block (352) faces the electrode rod (2).

4. The short-circuit proof water level electrode according to claim 2, characterized in that: A spring (353) is fixedly connected to the surface of the connecting strip (351), and one end of the spring (353) is in contact with the mounting groove (311).

5. The short-circuit proof water level electrode according to claim 4, characterized in that: The spring (353) is a rubber material component, and the spring (353) is always in a compressed state.

6. The short-circuit proof water level electrode according to claim 2, characterized in that: One end of the connection rope (354) is rotatably connected to a pull ring (355), and the corners of the pull ring (355) are rounded.

7. The short-circuit proof water level electrode according to claim 2, characterized in that: A guide column (356) is fixedly connected to the inner wall of the installation groove (311), and one end of the guide column (356) passes through the connecting bar (351) and extends to the outside of the connecting bar (351).

8. The short-circuit proof water level electrode according to claim 6, characterized in that: A first elastic block (357) is provided on the surface of the pull ring (355), and one end of the first elastic block (357) is fixedly connected to the internal threaded cylinder (31).

9. The short-circuit proof water level electrode according to claim 6, characterized in that: The locking mechanism (35) further comprises a second elastic block (358) fixedly connected to the internal threaded cylinder (31), wherein the distance between the second elastic block (358) and the connecting rope (354) is the same as the total length of the pull ring (355) and the positioning block (352).

10. The short-circuit proof water level electrode according to claim 5, characterized in that: A sealing gasket (359) is fixedly connected to the surface of the connecting rope (354), and the sealing gasket (359) is in contact with the internal threaded cylinder (31).

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