CN115790783A

CN115790783A - Protection device for buoy liquid level meter

Info

Publication number: CN115790783A
Application number: CN202211117553.6A
Authority: CN
Inventors: 杨翔; 刘信; 胡洋
Original assignee: Anhui Wesike Automation Instrument Co ltd
Current assignee: Anhui Wesike Automation Instrument Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-03-14

Abstract

The invention relates to the technical field of buoy level meters, in particular to a protection device for a buoy level meter, which comprises a level meter body and a display scale arranged on one side of the level meter body, wherein a protection mechanism is arranged on one side of the display scale, a clamping mechanism used for fixing the display scale is arranged on the level meter body, the clamping mechanism comprises limiting clamping sleeves and supporting blocks, the limiting clamping sleeves are arranged on two ends of one side of the display scale and fixed with the level meter body, the supporting blocks are fixedly arranged on two ends of the limiting clamping sleeves and contacted with one side of the display scale, and a limiting vertical groove is formed in one side of each supporting block. The invention has reasonable structure, is beneficial to improving the protection effect of the protection device for the buoy liquid level meter, ensures that the buoy liquid level meter is safer when in use, prolongs the service life of the buoy liquid level meter, and avoids the problem that the scales of the display scale of the existing buoy liquid level meter are very easy to be stained with stains which are difficult to clean in the working process due to the lack of the protection device, thereby influencing the normal reading of the buoy liquid level meter.

Description

Protection device for buoy liquid level meter

Technical Field

The invention relates to the technical field of buoy level meters, in particular to a protection device for a buoy level meter.

Background

The float level meter is a simple level measuring instrument, and it uses float as measuring element, when the liquid level changes, the float will float up and down, so that the height of liquid level can be indicated. The current buoy level meter is commonly used in equipment such as dry towers, tanks and boilers, but the display scale of the buoy level meter is usually lack of protection, so that the display scale is used in a poor environment for a long time, scales of the display scale are very easy to be stained with stains which are difficult to clean, normal reading of the display scale of the buoy level meter is influenced, the service life of the buoy level meter is greatly shortened, and the daily actual use requirements cannot be met.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a protection device for a buoy liquid level meter, which solves the defects that the display scale of the buoy liquid level meter is lack of protection, and the scale is easy to be stained with stains which are difficult to clean when the buoy liquid level meter is used, so that the normal reading of the buoy liquid level meter is influenced, and achieves the purpose of providing protection for the display scale and prolonging the service life of the buoy liquid level meter.

In order to solve the technical problems, the invention provides the following technical scheme: a protection device for a buoy liquid level meter comprises a liquid level meter body and a display scale arranged on one side of the liquid level meter body, wherein a protection mechanism is arranged on one side of the display scale, and a clamping mechanism used for fixing the display scale is arranged on the liquid level meter body;

the clamping mechanism comprises limiting clamping sleeves and supporting blocks, the limiting clamping sleeves are arranged at two ends of one side of the display scale and are fixed with the liquid level meter body, the supporting blocks are fixedly arranged at two ends of the limiting clamping sleeves and are in contact with one side of the display scale, limiting vertical grooves are formed in one sides of the supporting blocks, and pressing assemblies used for positioning the display scale are arranged at two ends of each limiting clamping sleeve;

protection mechanism is including setting up in demonstration scale one side and rather than assorted transparent housing to and set up in transparent housing one side and demonstration scale assorted spacing framework, transparent housing bottom one side is equipped with the subassembly of cleaning that is used for its surface, support square one side and be equipped with the locking Assembly who is used for its and spacing framework locking.

Further, compress tightly the subassembly including setting up in spacing perpendicular inslot side and with the L shape fixture block that the display scale is fixed, L shape fixture block and spacing perpendicular inslot sliding connection, spacing perpendicular inslot side is equipped with the slip perpendicular groove rather than being linked together, and slip perpendicular inslot side sliding connection has the activity briquetting with L shape fixture block one end assorted, activity briquetting one side both ends all are fixed with supports tight spring, support tight spring be located slip perpendicular inslot side and with the fixed connection of support square.

Further, locking Assembly is including setting up in support square one side and with the fixed movable picture peg of spacing framework to and set up in the movable picture peg and keep away from spacing framework one end and with the fixed limit baffle of spacing cutting ferrule, limit chute has been seted up to limit baffle side surface, the inboard sliding connection of limit chute have with movable picture peg assorted activity cardboard, the spacing draw-in groove with activity cardboard one end activity joint is seted up on activity picture peg one end surface.

Furthermore, a strip-shaped sliding groove is formed in the surface of one side of the movable clamping plate, a limit stop fixed with a limit baffle is arranged on the inner side of the strip-shaped sliding groove, a limit spring is fixed on one side of the limit stop, and the limit spring is located on the inner side of the strip-shaped sliding groove and fixedly connected with the movable clamping plate.

Furthermore, a fixed vertical groove is formed in the surface of one side of the limiting baffle, and a movable pull plate which is in sliding connection with the fixed vertical groove is fixed at one end of the movable clamping plate.

Further, the wiping component comprises a movable scraping rod arranged at the bottom of one side of the transparent shell in a sliding mode and L-shaped sliding blocks arranged at two ends of the movable scraping rod, the two L-shaped sliding blocks are respectively connected with two sides of the transparent shell in a sliding mode, a supporting cross rod which is in contact with the bottom of the movable scraping rod is arranged between the L-shaped sliding blocks, and a cleaning sponge pad is fixedly bonded on the inner side of the movable scraping rod.

Furthermore, both sides of the transparent shell are fixed with a limiting vertical rod, and the surface of one end of the L-shaped sliding block is provided with a strip-shaped vertical groove which slides with the limiting vertical rod.

Furthermore, both ends of the movable scraping rod are fixed with limiting sliding blocks, the surface of the other end of the L-shaped sliding block is provided with a fixed clamping groove, and the limiting sliding blocks are matched with the fixed clamping groove and are magnetically connected with the L-shaped sliding block.

By means of the technical scheme, the invention provides a protection device for a buoy liquid level meter, which at least has the following beneficial effects:

1. the display scale is clamped and fixed on the liquid level meter body through the clamping mechanism, the display scale is protected by the protection mechanism, the limiting frame body is sleeved on the outer side of the display scale, the transparent shell covers the scale surface of the display scale, the transparent cover body is used for protecting and lifting the display scale, the reading of the liquid level meter body on the display scale is not influenced, the structure is reasonable, the protection effect of the protection device for the buoy liquid level meter is favorably improved, the buoy liquid level meter is safer in use, the service life of the buoy liquid level meter is prolonged, the problem that the scales of the display scale of the existing buoy liquid level meter are easily stained with stains which are difficult to clean due to the lack of the protection device in the working process is avoided, and the normal reading condition of the buoy liquid level meter is influenced.

2. According to the liquid level meter, the limiting frame body is stably arranged on the liquid level meter body through the locking assembly, when the transparent shell covers the display scale, the limiting frame body is clamped on the outer side of the display scale, the limiting frame body drives the movable inserting plate to move, the movable inserting plate is in contact with the movable clamping block, meanwhile, the movable clamping plate is pushed to move in the limiting sliding groove, the movable clamping plate extrudes the limiting spring, elastic deformation is generated and compressed, then the movable inserting plate continues to move forwards, when the movable clamping plate is matched with the limiting clamping groove, the limiting spring recovers elastic deformation, the movable clamping plate is pushed to enter the limiting clamping groove, the movable inserting plate is clamped on the limiting clamping sleeve, and therefore the limiting frame body is fixed, and the transparent shell is conveniently and quickly arranged on the display scale.

3. According to the liquid level meter, the cleaning component is arranged on one side of the bottom of the transparent shell to facilitate cleaning of the transparent shell, when the liquid level meter body is used, the supporting cross rod is pushed upwards to drive the L-shaped sliding blocks at the two ends of the supporting cross rod to move upwards, the two L-shaped sliding blocks drive the movable scraping rod and the cleaning sponge pad to move upwards, the cleaning sponge pad cleans the surface of the transparent shell, the transparent shell can be cleaned regularly through the cleaning component, the phenomenon that the transparent shell is adhered with stains for a long time and is difficult to clean so as to influence the reading is avoided, and therefore the display scale can be better protected.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top partial perspective cut-away view of the present invention;

FIG. 3 is a side partial perspective cut-away view of the present invention;

FIG. 4 is a schematic illustration of a partial explosion of the present invention;

FIG. 5 is an exploded view of the clamping mechanism of the present invention;

FIG. 6 is an exploded view of the protection mechanism of the present invention;

FIG. 7 is an exploded view of a wiping component of the present invention;

fig. 8 is an enlarged view of a portion a of fig. 2.

In the figure: 1. a liquid level gauge body; 2. displaying a scale; 3. a protection mechanism; 31. a transparent housing; 32. a limiting frame body; 33. a wiping component; 331. a movable scraping rod; 332. an L-shaped slider; 333. a support rail; 334. cleaning the sponge cushion; 335. a limiting vertical rod; 336. a bar-shaped vertical groove; 337. a limiting slide block; 34. a locking assembly; 340. a movable plug board; 341. a limiting baffle; 342. a limiting chute; 343. a movable clamping plate; 344. a limiting clamping groove; 345. a strip-shaped chute; 346. a limit stop block; 347. a limiting spring; 348. fixing the vertical groove; 349. a movable pulling plate; 4. a chucking mechanism; 41. a limiting clamping sleeve; 42. a support block; 43. a limiting vertical groove; 44. a compression assembly; 441. an L-shaped fixture block; 442. a sliding vertical slot; 443. a movable pressing block; 444. the spring is pressed tightly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example one

Fig. 1-5 and 8 are one embodiment of the present invention: the utility model provides a protection device for buoy level gauge, includes level gauge body 1 to and set up in the demonstration scale 2 of level gauge body 1 one side, show that 2 one sides of scale are equipped with protection mechanism 3, are equipped with the chucking mechanism 4 that is used for fixed demonstration scale 2 on the level gauge body 1.

Protection machanism 3 is used for protecting in real time display scale 2, establish the outside at display scale 2 through spacing framework 32 cover, and transparent housing 31 lid is at the scale face that shows scale 2, and transparent lid is in the promotion to display scale 2 protection, and does not influence the reading of level gauge body 1 on display scale 2, and chucking mechanism 4 is used for fixing 2 chucking of display scale on level gauge body 1, is convenient for install display scale 2 fast.

Chucking mechanism 4 is including setting up in 2 one side both ends of demonstration scale and with the fixed spacing cutting ferrule 41 of level gauge body 1 to and fixed the support square 42 that sets up in spacing cutting ferrule 41 both ends and contact with 2 one side of demonstration scale, support square 42 can provide the location to demonstration scale 2, make its fixed mounting on level gauge body 1, support square 42 one side has been seted up spacing perpendicular groove 43, spacing cutting ferrule 41 both ends all are equipped with the subassembly 44 that compresses tightly that is used for fixing a position display scale 2.

Protection machanism 3 is including setting up in display scale 2 one side and rather than assorted transparent casing 31 to and set up in transparent casing 31 one side and display scale 2 assorted spacing framework 32, transparent casing 31 bottom one side is equipped with the cleaning assembly 33 that is used for cleaning its surface, can be regularly clean transparent casing 31 through cleaning assembly 33, so that protect display scale 2 better, support square 42 one side and be equipped with the locking Assembly 34 that is used for locking it with spacing framework 32.

The pressing component 44 comprises an L-shaped fixture block 441 which is arranged at the inner side of the limiting vertical groove 43 and fixed with the display scale 2, the L-shaped fixture block 441 is connected with the limiting vertical groove 43 in a sliding manner, a sliding vertical groove 442 communicated with one side of the limiting vertical groove 43 is arranged at the inner side of the sliding vertical groove 442, a movable pressing block 443 matched with one end of the L-shaped fixture block 441 is connected at the inner side of the sliding vertical groove 442 in a sliding manner, the inclined plane at the bottom end of the L-shaped fixture block 441 is matched with the inclined plane at the top end of the movable pressing block 443, two ends of one side of the movable pressing block 443 are both fixed with a resisting spring 444, and the resisting spring 444 is positioned at the inner side of the sliding vertical groove 442 and fixedly connected with the support block 42.

The specific implementation process of the implementation is as follows: when the display scale 2 is installed, the L-shaped fixture block 441 on one side of the display scale 2 is aligned with the vertical limiting groove 43 on the supporting block 42, the display scale 2 is pushed downwards, the display scale 2 drives the L-shaped fixture block 441 to slide downwards in the vertical limiting groove 43, the L-shaped fixture block 441 pushes the movable pressing block 443 at the bottom of the L-shaped fixture block to move, the movable pressing block 443 slides towards one side of the abutting spring 444 in the vertical sliding groove 442, the movable pressing block 443 extrudes the abutting spring 444, the abutting spring 444 generates elastic deformation and is compressed, the movable pressing block 443 completely enters the inner side of the vertical sliding groove 442, the L-shaped fixture block 441 continues to move downwards to the bottom in the vertical limiting groove 43, and the abutting spring 444 provides a reaction force for the movable pressing block 443, so that the movable pressing block 443 abuts against the L-shaped fixture block 441, the L-shaped fixture block 441 is fixed in the vertical limiting groove 43 on the supporting block 42, and the display scale 2 is installed on the liquid level meter body 1.

Example two

Referring to fig. 6, basically the same as the first embodiment, it is further optimized that: the locking assembly 34 comprises a movable inserting plate 340 which is arranged on one side of the supporting block 42 and fixed with the limiting frame body 32, and a limiting baffle 341 which is arranged on one end of the movable inserting plate 340 far away from the limiting frame body 32 and fixed with the limiting clamping sleeve 41, a limiting sliding groove 342 is formed in one side surface of the limiting baffle 341, a movable clamping plate 343 matched with the movable inserting plate 340 is connected to the inner side of the limiting sliding groove 342 in a sliding manner, the inclined surface of the end part of the movable inserting plate 340 is matched with the inclined surface of the end part of the movable clamping block, a limiting clamping groove 344 movably clamped with one end of the movable clamping plate 343 is formed in the surface of one side of the movable clamping plate 343, a strip-shaped sliding groove 345 is formed in one side surface of the movable clamping plate 343, a limiting stopper 346 fixed with the limiting baffle 341 is arranged on the inner side of the strip-shaped sliding groove 345, a limiting spring 347 is fixed on one side of the limiting stopper 346, the limiting spring is fixedly connected with the movable clamping plate 345, a fixed vertical groove 348 is formed in one side surface of the limiting baffle 341, and a movable pulling plate 349 slidably connected with the fixed vertical groove 348.

The specific implementation process of the implementation is as follows: when the transparent shell 31 is installed, the limiting frame 32 is sleeved on the outer side of the display scale 2, the transparent shell 31 covers the scale surface of the display scale 2, the limiting frame 32 drives the movable inserting plate 340 on one side of the limiting frame to move towards the direction of the liquid level meter body 1, the end portion of the movable inserting plate 340 is in contact with the end portion of the movable clamping block, the movable inserting plate 340 pushes the movable clamping plate 343 to move in the limiting sliding groove 342, the movable clamping plate 343 slides outside the limiting stop 346, the movable clamping plate 343 extrudes the limiting spring 347, the limiting spring 347 elastically deforms and is compressed, then the movable inserting plate 340 continues to move towards the direction of the liquid level meter body 1, when the movable clamping plate 343 is matched with the limiting clamping groove 344 on one end of the movable inserting plate 340, the limiting spring 347 restores the elastic deformation, the limiting spring 347 pushes the movable clamping plate 343 to enter the limiting clamping groove 344, and the movable inserting plate 340 is clamped on the limiting clamping sleeve 41, so that the limiting frame 32 is fixed on the liquid level meter body 1.

EXAMPLE III

Referring to fig. 7, basically the same as the first embodiment, it is more optimized that: the wiping component 33 comprises a movable scraping rod 331 arranged at the bottom of one side of the transparent shell 31 in a sliding manner, and L-shaped sliding blocks 332 arranged at two ends of the movable scraping rod 331, the two L-shaped sliding blocks 332 are respectively connected with two sides of the transparent shell 31 in a sliding manner, a supporting cross rod 333 which is in contact with the bottom of the movable scraping rod 331 is arranged between the two L-shaped sliding blocks 332, two sides of the transparent shell 31 are respectively fixed with a limiting vertical rod 335, one end surface of each L-shaped sliding block 332 is provided with a strip-shaped vertical groove 336 which slides with the limiting vertical rod 335, two ends of the movable scraping rod 331 are respectively fixed with a limiting sliding block 337, the other end surface of each L-shaped sliding block 332 is provided with a fixed clamping groove, the limiting sliding blocks 337 are matched with the fixed clamping grooves and are magnetically connected with the L-shaped sliding blocks 332, and the inner side of the movable scraping rod 331 is fixedly bonded with a cleaning sponge pad 334.

When the cleaning sponge pad 334 is too dirty in a wiping way, the movable scraping rod 331 is pulled upwards, and when the pulling force of the movable scraping rod 331 is greater than the magnetic force of the limiting sliding block 337 and the L-shaped sliding block 332, the movable scraping rod 331 and the cleaning sponge pad 334 are detached simultaneously, so that the cleaning sponge pad 334 is cleaned or replaced.

The specific implementation process of the implementation is as follows: in the use process of level gauge body 1, support horizontal pole 333 through upwards promoting, support horizontal pole 333 and drive the L shape slider 332 upward movement at its both ends, L shape slider 332 upwards slides in spacing montant 335 outside, two L shape sliders 332 drive the activity between it and scrape pole 331 upward movement simultaneously, the activity is scraped the pole 331 and is driven the clean foam-rubber cushion 334 upward movement of its inboard, clean foam-rubber cushion 334 upwards slides on transparent shell 31 surface, clean foam-rubber cushion 334 cleans transparent shell 31 surface, can be regularly clean transparent shell 31 through cleaning subassembly 33.

In the invention, in the process of installing the display scale 2, the L-shaped fixture block 441 on one side of the display scale 2 is aligned with the limiting vertical groove 43 on the supporting block 42 to push the display scale 2 downwards, the display scale 2 drives the L-shaped fixture block 441 to slide downwards in the limiting vertical groove 43, the L-shaped fixture block 441 pushes the movable pressing block 443 on the bottom of the L-shaped fixture block to move, the movable pressing block 443 slides towards one side of the abutting spring 444 in the sliding vertical groove 442, the movable pressing block 443 extrudes the abutting spring 444, the abutting spring 444 generates elastic deformation and is compressed, the movable pressing block 443 completely enters the inner side of the sliding vertical groove 442, the L-shaped fixture block 441 continuously moves downwards to the bottom in the limiting vertical groove 43, and the abutting spring 444 provides a reaction force for the movable pressing block 443 to abut against the L-shaped fixture block 441 so that the L-shaped fixture block 441 is fixed in the limiting vertical groove 43 on the supporting block 42, thereby installing the display scale 2 on the liquid level meter body 1;

when the transparent shell 31 is installed, the limiting frame 32 is sleeved on the outer side of the display scale 2, the transparent shell 31 covers the scale surface of the display scale 2, the limiting frame 32 drives the movable inserting plate 340 on one side of the limiting frame to move towards the direction of the liquid level meter body 1, the end part of the movable inserting plate 340 is in contact with the end part of the movable clamping block, the movable inserting plate 340 pushes the movable clamping plate 343 to move in the limiting sliding groove 342, the movable clamping plate 343 slides outside the limiting stop 346, the movable clamping plate 343 extrudes the limiting spring 347, the limiting spring 347 elastically deforms and is compressed, then the movable inserting plate 340 continues to move towards the direction of the liquid level meter body 1, when the movable clamping plate 343 is matched with the limiting clamping groove 344 on one end of the movable inserting plate 340, the limiting spring 347 restores the elastic deformation, the limiting spring 347 pushes the movable clamping plate 343 to enter the limiting clamping groove 344, and tightly clamps the movable inserting plate 340 on the limiting clamping sleeve 41, so that the limiting frame 32 is fixed on the liquid level meter body 1;

when the transparent shell 31 needs to be disassembled, the movable pulling plate 349 is pulled, the movable pulling plate 349 drives the movable clamping plate 343 to move in the limiting sliding groove 342, the movable clamping plate 343 slides outside the limiting stopper 346, the movable clamping plate 343 extrudes the limiting spring 347, the limiting spring 347 elastically deforms and is compressed, one end of the movable clamping plate 343 is separated from the limiting clamping groove 344 at one end of the movable inserting plate 340, the movable inserting plate 340 lacks the clamping of the movable clamping plate 343, and then the transparent shell 31 and the limiting frame 32 can be disassembled together.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a protection device for buoy level gauge, includes level gauge body (1) to and set up in display scale (2) of level gauge body (1) one side, its characterized in that: a protection mechanism (3) is arranged on one side of the display scale (2), and a clamping mechanism (4) for fixing the display scale (2) is arranged on the liquid level meter body (1);

the clamping mechanism (4) comprises limiting clamping sleeves (41) which are arranged at two ends of one side of the display scale (2) and fixed with the liquid level meter body (1), and supporting square blocks (42) which are fixedly arranged at two ends of the limiting clamping sleeves (41) and contacted with one side of the display scale (2), wherein a limiting vertical groove (43) is formed in one side of each supporting square block (42), and pressing assemblies (44) used for positioning the display scale (2) are arranged at two ends of each limiting clamping sleeve (41);

protection machanism (3) including set up in display scale (2) one side and rather than assorted transparent casing (31) to and set up in transparent casing (31) one side and display scale (2) assorted spacing framework (32), transparent casing (31) bottom one side is equipped with and is used for cleaning its surperficial subassembly (33) of cleaning, support square (42) one side is equipped with and is used for its locking subassembly (34) with spacing framework (32) locking.

2. The protection device for the float level gauge according to claim 1, wherein: the pressing assembly (44) comprises an L-shaped fixture block (441) which is arranged on the inner side of the limiting vertical groove (43) and fixed with the display scale (2), the L-shaped fixture block (441) is connected with the limiting vertical groove (43) in a sliding mode, one side of the limiting vertical groove (43) is provided with a sliding vertical groove (442) communicated with the limiting vertical groove, the inner side of the sliding vertical groove (442) is connected with a movable pressing block (443) matched with one end of the L-shaped fixture block (441) in a sliding mode, two ends of one side of the movable pressing block (443) are respectively fixed with a pressing spring (444), and the pressing spring (444) is located on the inner side of the sliding vertical groove (442) and is fixedly connected with the support square block (42).

3. The protection device for the float level gauge according to claim 1, wherein: locking Assembly (34) including set up in support square (42) one side and with fixed movable picture peg (340) of spacing framework (32) to and set up in movable picture peg (340) keep away from spacing framework (32) one end and with spacing cutting ferrule (41) fixed limit baffle (341), limit chute (342) have been seted up to limit baffle (341) one side surface, and limit chute (342) inboard sliding connection has and activity picture peg (340) assorted activity cardboard (343), spacing draw-in groove (344) with activity cardboard (343) one end activity joint are seted up to activity picture peg (340) one end surface.

4. The protection device for the float level gauge according to claim 3, wherein: a strip-shaped sliding groove (345) is formed in the surface of one side of the movable clamping plate (343), a limit stop (346) fixed with the limit baffle (341) is arranged on the inner side of the strip-shaped sliding groove (345), a limit spring (347) is fixed on one side of the limit stop (346), and the limit spring (347) is located on the inner side of the strip-shaped sliding groove (345) and is fixedly connected with the movable clamping plate (343).

5. The protection device for the float level gauge according to claim 4, wherein: a fixed vertical groove (348) is formed in the surface of one side of the limiting baffle (341), and a movable pulling plate (349) in sliding connection with the fixed vertical groove (348) is fixed at one end of the movable clamping plate (343).

6. The protection device for the float level gauge according to claim 1, wherein: wiping subassembly (33) including slide set up in the activity of transparent casing (31) one side bottom scrape pole (331) to and set up in the activity and scrape L shape slider (332) at pole (331) both ends, two L shape slider (332) respectively with transparent casing (31) both sides sliding connection, two be equipped with between L shape slider (332) with the activity scrape support horizontal pole (333) that pole (331) bottom contacted, the activity is scraped pole (331) inboard and is fixed the bonding and have clean foam-rubber cushion (334).

7. The protection device for the float level gauge according to claim 6, wherein: both sides of the transparent shell (31) are fixed with a limit vertical rod (335), and one end surface of the L-shaped sliding block (332) is provided with a strip-shaped vertical groove (336) which slides with the limit vertical rod (335).

8. The protection device for the float level gauge according to claim 6, wherein: both ends of the movable scraping rod (331) are fixed with limiting sliding blocks (337), the surface of the other end of the L-shaped sliding block (332) is provided with a fixed clamping groove, and the limiting sliding blocks (337) are matched with the fixed clamping groove and are magnetically connected with the L-shaped sliding block (332).