Cylinder liquid level meter for instruments and meters

Abstract

The invention discloses a cylinder liquid level meter for instruments, which comprises an outer frame, a scale plate is fixedly connected to one side of the inner wall of the outer frame, a lifting rod is slidably connected to one side of the inner wall of the outer frame, a pointing block is fixedly connected to the top of the lifting rod, and one end of the bottom of the lifting rod extends to the outside of the outer frame and is fixedly connected with a floating ball. The inner part of the outer frame is provided with an amplification device which is provided with an outward pushing groove; an extrapolation device; the trigger device is provided with a longitudinal sliding groove, and the invention relates to the technical field of liquid level meters. According to the barrel liquid level meter for the instrument, the purpose of conveniently observing the pointing scale of the liquid level meter is achieved, the use difficulty of the liquid level meter is reduced, the corresponding large-size scale can be automatically displayed when the liquid level changes, observation is convenient, the intelligent degree of the device is improved, automatic power off can be achieved after work is completed, and the working efficiency is improved. The energy waste degree is reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of liquid level gauges, in particular to a cylinder liquid level gauge for instruments and meters. Background Art

[0002] The liquid level gauge of the commonly used water-sealed fire-blocking and explosion-relief device is usually installed on the outside of the water-sealed fire-blocking and explosion-relief barrel. It uses the principle of communicating vessels to display the height of the liquid level in the water-sealed fire-blocking and explosion-relief barrel in real time. The technology is simple, easy to install, and more practical.

[0003] However, the existing water-sealed cylinder level gauge is not convenient for observing the pointing scale of the level gauge, the level gauge is difficult to use, and cannot automatically display the corresponding larger scale for easy observation when the liquid level changes. The intelligence level is low and it cannot automatically cut off the power after the work is completed. The energy waste is high, which reduces the service life of the device. Summary of the invention

[0004] Technical issues solved In view of the deficiencies in the prior art, the present invention provides a cylinder liquid level gauge for instruments and meters, which solves the problem that it is inconvenient to observe the pointing scale of the liquid level gauge in the existing water-sealed cylinder liquid level gauge, reduces the difficulty of using the liquid level gauge, can automatically display the corresponding larger scale when the liquid level changes for easy observation, improves the intelligence of the device, can automatically cut off the power after the work is completed, reduces the waste of energy, and increases the service life of the device.

[0005] To achieve the above purpose, the present invention is implemented by the following technical solutions: a cylinder liquid level gauge for instruments and meters, comprising an outer frame, a scale plate is fixedly connected to one side of the inner wall of the outer frame, a lifting rod is slidably connected to one side of the inner wall of the outer frame, a pointing block is fixedly connected to the top of the lifting rod, one end of the bottom of the lifting rod extends to the outside of the outer frame and is fixedly connected to a floating ball, and the inner part of the outer frame is provided with: The amplifying device comprises an extrapolation groove, the extrapolation groove runs through the scale plate and the outer frame, extrapolation blocks are evenly installed between the inner walls of the extrapolation groove on both sides, the extrapolation blocks are slidably connected to the inner wall of the extrapolation groove, a display groove is provided on the top of the extrapolation block, a marking block is fixedly connected to the inner bottom of the display groove, an electric-controlled telescopic rod pushes the extrapolation block to slide along the extrapolation groove to the outside of the outer frame, and the scale of the marking block inside the display groove runs through the inside of the extrapolation block at the top extending to the outside of the outer frame, which can automatically trigger the extrapolation block to move and display the water level value when the liquid level of the water seal cylinder changes, and the water level value on the larger marking block is observed from the inside of the display groove, thereby reducing the difficulty of observing the liquid level of the water seal cylinder; An extrapolation device, the extrapolation device having an electrically controlled telescopic rod, a mounting groove adapted to the electrically controlled telescopic rod is provided on the outer side of the pointing block, a docking groove is provided at the bottom of the pointing block, a docking block is slidably connected to one side of the inner wall of the docking groove, conductive columns are symmetrically installed on both sides of the inner wall of the docking groove, and the electrically controlled telescopic rod is electrically connected to the conductive columns; The trigger device has a longitudinal slide groove, which is arranged at the top of the lifting rod and is connected with the docking groove. A trigger groove is arranged on one side of the inner wall of the longitudinal slide groove. A swing plate is rotatably connected to one side of the inner wall of the trigger groove. A through hole matching the docking block is arranged on the top of the swing plate. The top of the swing plate is fixedly connected to the inner wall of the trigger groove through a reset spring. When the liquid level inside the water seal cylinder changes, the float drives the lifting rod to move up and down. The swing plate deflects after the length of the reset spring changes due to inertia. When the top of the swing plate When the perforation of the swing plate swings into the trigger slot, the docking block can move upward through the perforation of the swing plate, the electromagnet attracts the metal plate and the docking block to move upward into the docking slot, and the conductive columns are connected by the metal plates to form a passage that extends. The electric-controlled telescopic rod pushes the push-out block to slide along the push-out slot to the outside of the outer frame, and the scale of the marking block inside the display slot is penetrated from the top of the push-out block extending to the outside of the outer frame. When the liquid level of the water seal cylinder changes, it can automatically trigger the push-out block to move to display the water level value, thereby improving the intelligence of the device.

[0006] Preferably, a metal plate is fixedly connected to the top of the docking block, and the conductive column is slidably connected to the metal plate.

[0007] Preferably, an electromagnet is fixedly connected to the inner top of the docking groove, and a control board is installed on one side of the pointing block. The control board is electrically connected to the electromagnet, and the electromagnet is powered off by the control board. After the metal plate and the docking block are no longer attracted by the magnetic force of the electromagnet, they drop to their initial position due to their own gravity, which is convenient for the next use.

[0008] Preferably, a power slot is provided on a side of the pointing block away from the electrically-controlled telescopic rod, a power source is fixedly connected inside the power slot, and the power source is electrically connected to the conductive column and the electrically-controlled telescopic rod.

[0009] Preferably, inclined grooves are provided on both sides of the inner wall of the longitudinal slide groove, and absorbent cloths are symmetrically installed on the inner wall of the longitudinal slide groove, and both ends of the absorbent cloths extend to the inside of the inclined groove and are fixedly connected to the inner wall of the inclined groove. The electromagnet attracts the metal plate and the docking block to move upward, and the surface of the docking block is moistened by salt water when passing through the absorbent cloth. After the docking block moves into the docking groove, it contacts the electromagnet. At this time, the metal plate moves to the top of the conductive column, and the metal plate and the conductive column are electrically connected through the salt water. The power supply supplies power to the electric telescopic rod. After the circuit between the electric telescopic rod, the conductive column, the metal plate and the power supply is connected, the electric telescopic rod pushes the push-out block to slide along the push-out groove to the external display scale of the outer frame. After the metal plate is energized, it generates heat and evaporates the salt water on the surface. After the salt water is evaporated, the circuit is disconnected, and the electric telescopic rod retracts to the initial length after power is cut off. The electric telescopic rod can automatically cut off the power after working for a period of time to push out the push-out block display scale, thereby reducing the waste of electricity and improving the service life of the device.

[0010] Preferably, a water tank is provided inside the lifting rod above the inclined groove, the water tank is filled with brine, a dripping groove is provided at the bottom of the water tank, the dripping groove runs through the lifting rod and is connected with the inclined groove, brine is introduced into the water tank from the water inlet pipe, the brine drips from the dripping groove at the bottom of the water tank onto the surface of the absorbent cloth, and brine can be continuously replenished to the absorbent cloth, ensuring that the surface of the docking block can be moistened by the brine and work normally when it passes by, thereby improving the stability of the device.

[0011] Preferably, a water receiving box is installed inside the longitudinal slide groove below the absorbent cloth, a water intake trough is opened on one side of the lifting rod, the water intake trough runs through the lifting rod and is connected to the longitudinal slide groove, one end of the water receiving box extends to the inside of the water intake trough and is fixedly connected with a handle, when there is a lot of salt water on the surface of the absorbent cloth, it drips into the water receiving box, the handle is pulled to draw the water receiving box out of the lifting rod, and then the salt water in the water receiving box is poured out and then the water receiving box is put into the water intake trough, which can store excess salt water on the surface of the absorbent cloth to prevent the salt water on the surface of the absorbent cloth from dripping into the device below and causing corrosion.

[0012] Preferably, a heat dissipation hole is opened at the inner top of the docking groove, the heat dissipation hole passes through the pointing block, a heat conductive sheet is fixedly connected to one side of the inner wall of the heat dissipation hole, and one end of the top of the heat conductive sheet extends to the outside of the pointing block.

[0013] Preferably, one side of the water storage tank is connected to a water inlet pipe, and the water inlet pipe passes through the lifting rod and extends to the outside of the lifting rod.

[0014] The present invention provides a cylinder liquid level gauge for instruments and meters. It has the following beneficial effects: The cylinder liquid level gauge for the instrument uses an electric-controlled telescopic rod to push the push-out block to slide along the push-out groove to the outside of the outer frame, and the scale of the marking block inside the display groove is penetrated from the inside of the top push-out block extending to the outside of the outer frame. The water level value on the larger marking block is observed from the inside of the display groove, which reduces the difficulty of observing the liquid level of the water seal cylinder.

[0015] The cylinder liquid level gauge for instruments and meters, when the liquid level inside the water seal cylinder changes, the float drives the lifting rod to move up and down, the swing plate deflects due to the change in the length of the reset spring driven by inertia, when the perforation at the top of the swing plate swings into the trigger groove, the docking block can pass through the perforation of the swing plate and move upward, the electromagnet attracts the metal plate and the docking block to move upward into the docking groove, the conductive columns are connected by the metal plate to form a passage extension of the electric control telescopic rod, the electric control telescopic rod pushes the push-out block to slide along the push-out groove to the outside of the outer frame, and the scale of the marking block inside the display groove is penetrated from the top push-out block extending to the outside of the outer frame, which can automatically trigger the push-out block to move and display the water level value when the liquid level of the water seal cylinder changes, thereby improving the intelligence of the device.

[0016] The cylinder level gauge for the instrument attracts the metal plate and the docking block to move upward by an electromagnet. The surface of the docking block is moistened by salt water when passing through the absorbent cloth. The docking block moves to the inside of the docking groove and contacts the electromagnet. At this time, the metal plate moves to the top of the conductive column. The metal plate and the conductive column are electrically connected through the salt water. The power supply supplies power to the electric telescopic rod. After the circuit between the electric telescopic rod, the conductive column, the metal plate and the power supply is connected, the electric telescopic rod pushes the push-out block to slide along the push-out groove to the external display scale of the outer frame. After the metal plate is energized, it generates heat to evaporate the salt water on the surface. After the salt water is evaporated, the circuit is disconnected. After the electric telescopic rod is powered off, it retracts to the initial length. After the electric telescopic rod has worked for a period of time and the push-out block display scale is pushed out, the power is automatically turned off, thereby reducing the waste of electricity and increasing the service life of the device.

[0017] The cylinder level gauge for the instrument is designed to continuously replenish the absorbent cloth with salt water by introducing salt water into the water storage tank from the water inlet pipe. This ensures that the surface of the docking block can be moistened by the salt water and work normally when the docking block passes by, thereby improving the stability of the device.

[0018] The instrument uses a cylinder level gauge. When there is a lot of salt water on the surface of the absorbent cloth and it drips into the water box, the handle is pulled to draw the water box out of the lifting rod, and then the salt water inside the water box is poured out and the water box is placed into the water tank. This can store excess salt water on the surface of the absorbent cloth to prevent the salt water on the surface of the absorbent cloth from dripping into the device below and causing corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the lifting rod and the front side of the pointing block of the present invention; Figure 3 It is a schematic diagram of the structure of the lifting rod and the back side of the pointing block of the present invention; Figure 4 It is an internal cross-sectional view of the front side of the lifting rod and the pointing block of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 It is a schematic structural diagram of the amplifying device of the present invention.

[0020] In the figure: 1-outer frame, 2-scale plate, 3-lifting rod, 4-pointing block, 5-floating ball, 6-magnifying device, 61-extrapolating slot, 62-extrapolating block, 63-display slot, 7-extrapolating device, 71-electrically controlled telescopic rod, 72-conductive column, 73-mounting slot, 74-docking slot, 75-docking block, 8-trigger device, 81-longitudinal slide slot, 82-trigger slot, 83-swing plate, 84-reset spring, 9-electromagnet, 10-control board, 11-metal plate, 12-power slot, 13-power supply, 14-tilted slot, 15-absorbent cloth, 16-water storage tank, 17-water receiving box, 18-water taking tank, 19-heat dissipation hole, 20-heat conducting sheet, 21-water inlet pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0022] See also Figure 1-6 The present invention provides a technical solution: a cylinder liquid level gauge for instruments and meters, comprising an outer frame 1, a scale plate 2 is fixedly connected to one side of the inner wall of the outer frame 1, a lifting rod 3 is slidably connected to one side of the inner wall of the outer frame 1, a pointing block 4 is fixedly connected to the top of the lifting rod 3, one end of the bottom of the lifting rod 3 extends to the outside of the outer frame 1 and is fixedly connected to a floating ball 5, and the inner part of the outer frame 1 is provided with: The amplifying device 6 comprises an extrapolation groove 61, the extrapolation groove 61 penetrates the scale plate 2 and the outer frame 1, extrapolation blocks 62 are evenly installed between the inner walls of the extrapolation groove 61, the extrapolation blocks 62 are slidably connected to the inner walls of the extrapolation groove 61, a display groove 63 is formed on the top of the extrapolation block 62, and a marking block is fixedly connected to the inner bottom of the display groove 63; The extrapolation device 7 comprises an electrically controlled telescopic rod 71, a mounting groove 73 adapted to the electrically controlled telescopic rod 71 is provided on the outer side of the pointing block 4, a docking groove 74 is provided at the bottom of the pointing block 4, a docking block 75 is slidably connected to one side of the inner wall of the docking groove 74, conductive columns 72 are symmetrically installed on both sides of the inner wall of the docking groove 74, and the electrically controlled telescopic rod 71 is electrically connected to the conductive columns 72; The trigger device 8 has a longitudinal slide groove 81, which is opened at the top of the lifting rod 3 and is connected to the docking groove 74. A trigger groove 82 is opened on one side of the inner wall of the longitudinal slide groove 81. A swing plate 83 is rotatably connected to one side of the inner wall of the trigger groove 82. A through hole matching the docking block 75 is opened on the top of the swing plate 83. The top of the swing plate 83 is fixedly connected to the inner wall of the trigger groove 82 through a reset spring 84.

[0023] The top of the docking block 75 is fixedly connected with the metal plate 11 , and the conductive column 72 is slidably connected to the metal plate 11 .

[0024] An electromagnet 9 is fixedly connected to the inner top of the docking groove 74 , and a control board 10 is installed on the side pointing to the block 4 , and the control board 10 is electrically connected to the electromagnet 9 .

[0025] When in use, the scale plate 2 is arranged on the outside of the water seal cylinder, and the bottom end of the lifting rod 3 and the floating ball 5 extend downward into the inside of the water seal cylinder. The floating ball 5 floats on the water surface as the water level moves, driving the lifting rod 3 and the pointing block 4 to move up and down. The scale of the pointing block 4 pointing to the scale plate 2 is the liquid level height. When the liquid level inside the water seal cylinder 1 changes, the floating ball 5 drives the lifting rod 3 to move up and down, and the swing plate 83 deflects after the length of the reset spring 84 changes due to inertia. When the perforation on the top of the swing plate 83 swings into the inside of the trigger slot 82, the docking block 75 can pass through the perforation of the swing plate 83 and move upward. The electromagnet 9 attracts the metal plate 11 and the docking block 75 to move upward to the inside of the docking groove 74. After the conductive columns 72 are connected by the metal plate 11, the electric-controlled telescopic rod 71 forms a passage and extends. The electric-controlled telescopic rod 71 pushes the extrapolation block 62 to slide along the extrapolation groove 61 to the outside of the outer frame 1. The scale of the marking block inside the display groove 63 from the top extrapolation block 62 extending to the outside of the outer frame 1 can automatically trigger the extrapolation block to move and display the water level value when the liquid level of the water seal cylinder changes. The water level value on the larger marking block is observed from the inside of the display groove, which reduces the difficulty of observing the liquid level of the water seal cylinder.

[0026] The control panel 10 controls the electromagnet 9 to be powered off, and the metal plate 11 and the docking block 74 are no longer attracted by the magnetic force of the electromagnet 9 and fall to the initial position due to their own gravity, so as to be convenient for the next use. Embodiment 2

[0027] See also Figure 1-6The present invention provides a technical solution: on the basis of the first embodiment, a power supply slot 12 is provided on the side of the pointing block 4 away from the electric control telescopic rod 71, and a power supply 13 is fixedly connected inside the power supply slot 12, and the power supply 13 is electrically connected to the conductive column 72 and the electric control telescopic rod 71.

[0028] Inclined grooves 14 are provided on both sides of the inner wall of the longitudinal slide groove 81 , and absorbent cloths 15 are symmetrically installed on the inner wall of the longitudinal slide groove 81 . Both ends of the absorbent cloth 15 extend into the interior of the inclined groove 14 and are fixedly connected to the inner wall of the inclined groove 14 .

[0029] A water storage tank 16 is provided inside the lifting rod 3 above the inclined groove 14 . The water storage tank 16 is filled with salt water. A drip groove is provided at the bottom of the water storage tank 16 . The drip groove passes through the lifting rod 3 and is connected to the inclined groove 14 .

[0030] A water receiving box 17 is installed inside the longitudinal slide groove 81 below the absorbent cloth 15, and a water intake trough 18 is opened on one side of the lifting rod 3. The water intake trough 18 runs through the lifting rod 3 and is connected to the longitudinal slide groove 81. One end of the water receiving box 17 extends to the inside of the water intake trough 18 and is fixedly connected with a handle.

[0031] A heat dissipation hole 19 is opened at the inner top of the docking groove 74 , and the heat dissipation hole 19 passes through the pointing block 4 . A heat conductive sheet 20 is fixedly connected to one side of the inner wall of the heat dissipation hole 19 , and one end of the top of the heat conductive sheet 20 extends to the outside of the pointing block 4 .

[0032] One side of the water storage tank 16 is connected to a water inlet pipe 21 , which passes through the lifting rod 3 and extends to the outside of the lifting rod 3 .

[0033] When in use, the absorbent cloth 15 is soaked with salt water. When the liquid level inside the water seal cylinder 1 changes, the float 5 drives the lifting rod 3 to move up and down. The swing plate 83 deflects after the length of the reset spring 84 changes due to inertia. When the perforation on the top of the swing plate 83 swings into the trigger groove 82, the docking block 75 can move through the perforation of the swing plate 83. The electromagnet 9 attracts the metal plate 11 and the docking block 75 to move upward. When the docking block 75 passes through the absorbent cloth 15, the surface is wetted by salt water. After the docking block 75 moves to the inside of the docking groove 74, it contacts the electromagnet 9. At this time, the metal plate 11 moves to the upper part of the conductive column 72. The metal plate 11 and the conductive column 72 are electrically connected through salt water, the power supply 13 supplies power to the electric-controlled telescopic rod 71, and after the circuits among the electric-controlled telescopic rod 71, the conductive column 72, the metal plate 11 and the power supply 13 are connected, the electric-controlled telescopic rod 71 pushes the extrapolation block 62 to slide along the extrapolation groove 61 to the external display scale of the outer frame 1, and after the metal plate 11 is powered on, it generates heat to evaporate the salt water on the surface, and after the salt water is evaporated, the circuit is disconnected, and the electric-controlled telescopic rod 71 retracts to its initial length after power is turned off, and can automatically cut off the power after the electric-controlled telescopic rod has worked for a period of time to push out the extrapolation block 62 to display the scale, thereby reducing the waste of electricity and improving the service life of the device.

[0034] Salt water is introduced into the water storage tank 16 from the water inlet pipe 21, and the salt water drips from the drip groove at the bottom of the water storage tank 16 to the surface of the absorbent cloth 15, which can continuously replenish the salt water to the absorbent cloth, ensuring that the surface of the docking block can be moistened by the salt water and work normally when passing by, thereby improving the stability of the device.

[0035] When there is a lot of salt water on the surface of the absorbent cloth 15, it will drip into the water receiving box 17. The handle is pulled to draw the water receiving box 17 out of the lifting rod 3, and then the salt water in the water receiving box 17 is poured out and then the water receiving box 17 is put into the water intake tank 18. This can store excess salt water on the surface of the absorbent cloth to prevent the salt water on the surface of the absorbent cloth from dripping into the device below and causing corrosion.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cylinder liquid level gauge for an instrument, comprising an outer frame (1), a scale plate (2) fixedly connected to one side of the inner wall of the outer frame (1), a lifting rod (3) slidably connected to one side of the inner wall of the outer frame (1), a pointing block (4) fixedly connected to the top of the lifting rod (3), a bottom end of the lifting rod (3) extending to the outside of the outer frame (1) and fixedly connected to a floating ball (5), characterized in that: The interior of the outer frame (1) is provided with: An amplifying device (6), the amplifying device (6) comprising an extrapolation groove (61), the extrapolation groove (61) penetrating the scale plate (2) and the outer frame (1), extrapolation blocks (62) being evenly mounted between two sides of the inner wall of the extrapolation groove (61), the extrapolation blocks (62) being slidably connected to the inner wall of the extrapolation groove (61), a display groove (63) being formed at the top of the extrapolation block (62), and a marking block being fixedly connected to the inner bottom of the display groove (63); An extrapolation device (7), the extrapolation device (7) comprising an electrically controlled telescopic rod (71), a mounting groove (73) adapted to the electrically controlled telescopic rod (71) being provided on the outer side of the pointing block (4), a docking groove (74) being provided on the bottom of the pointing block (4), a docking block (75) being slidably connected to one side of the inner wall of the docking groove (74), conductive columns (72) being symmetrically mounted on both sides of the inner wall of the docking groove (74), and the electrically controlled telescopic rod (71) being electrically connected to the conductive columns (72); A trigger device (8), the trigger device (8) having a longitudinal slide groove (81), the longitudinal slide groove (81) being provided at the top of the lifting rod (3) and communicating with the docking groove (74), a trigger groove (82) being provided on one side of the inner wall of the longitudinal slide groove (81), a swing plate (83) being rotatably connected to one side of the inner wall of the trigger groove (82), a through hole being provided on the top of the swing plate (83) being compatible with the docking block (75), and the top of the swing plate (83) being fixedly connected to the inner wall of the trigger groove (82) via a return spring (84).

2. The cylinder level gauge for instruments and meters according to claim 1, characterized in that: The top of the docking block (75) is fixedly connected to a metal plate (11), and the conductive column (72) is slidably connected to the metal plate (11).

3. The cylinder liquid level gauge for instruments and meters according to claim 1, characterized in that: An electromagnet (9) is fixedly connected to the inner top of the docking groove (74), and a control board (10) is installed on one side of the pointing block (4), and the control board (10) is electrically connected to the electromagnet (9).

4. The cylinder liquid level gauge for instruments and meters according to claim 1, characterized in that: A power slot (12) is provided on a side of the pointing block (4) away from the electrically controlled telescopic rod (71), a power source (13) is fixedly connected inside the power slot (12), and the power source (13) is electrically connected to both the conductive column (72) and the electrically controlled telescopic rod (71).

5. The cylinder liquid level gauge for instruments and meters according to claim 1, characterized in that: Inclined grooves (14) are provided on both sides of the inner wall of the longitudinal slide groove (81), and absorbent cloth (15) is symmetrically mounted on the inner wall of the longitudinal slide groove (81), with both ends of the absorbent cloth (15) extending into the interior of the inclined groove (14) and fixedly connected to the inner wall of the inclined groove (14).

6. The cylinder liquid level gauge for instruments and meters according to claim 5, characterized in that: A water storage tank (16) is provided inside the lifting rod (3) above the inclined groove (14), the water storage tank (16) is filled with salt water, and a drip groove is provided at the bottom of the water storage tank (16), the drip groove penetrates the lifting rod (3) and is in communication with the inclined groove (14).

7. The cylinder liquid level gauge for instruments and meters according to claim 5, characterized in that: A water receiving box (17) is installed inside the longitudinal chute (81) and is located below the absorbent cloth (15). A water intake trough (18) is provided on one side of the lifting rod (3). The water intake trough (18) passes through the lifting rod (3) and is connected to the longitudinal chute (81). One end of the water receiving box (17) extends into the interior of the water intake trough (18) and is fixedly connected to a handle.

8. The cylinder liquid level gauge for instruments and meters according to claim 1, characterized in that: A heat dissipation hole (19) is provided at the top of the inner side of the docking groove (74), the heat dissipation hole (19) penetrates the pointing block (4), a heat conducting sheet (20) is fixedly connected to one side of the inner wall of the heat dissipation hole (19), and a top end of the heat conducting sheet (20) extends to the outside of the pointing block (4).

9. The cylinder liquid level gauge for instruments and meters according to claim 6, characterized in that: One side of the water storage tank (16) is connected to a water inlet pipe (21), and the water inlet pipe (21) passes through the lifting rod (3) and extends to the outside of the lifting rod (3).

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