Anti-falling device of extra-high voltage high-resistance respirator

By incorporating the design of the second threaded central shaft and adjusting spring, combined with the limiting and fixing side block and the fixed connecting flange, the problem of vibration and instability in silica gel replacement caused by oil temperature changes in the UHV high-resistance breather has been solved, thereby improving the stability and safety of the equipment and making silica gel replacement more convenient.

CN115762980BActive Publication Date: 2026-08-04MAINTENANCE BRANCH OF STATE GRID HEBEI ELECTRIC POWER +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
MAINTENANCE BRANCH OF STATE GRID HEBEI ELECTRIC POWER
Filing Date
2022-11-16
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing UHV high-resistance breather is prone to vibration due to oil temperature changes during use, which can cause gaps at the connection points and damage the transformer and breather. Furthermore, instability is a significant issue when replacing silicone sealant.

Method used

The design employs a second threaded central shaft and adjusting spring, combined with a limiting and fixing side block and a fixed connecting flange. The stability of the equipment is maintained through the rotation of the threaded central shaft and the action of the adjusting spring. The vibration effect is reduced by the limiting rubber sleeve and the top fixing rubber sleeve, ensuring that the equipment does not shake arbitrarily when changing parts.

Benefits of technology

It improves the stability and safety of the equipment, reduces damage caused by vibration, simplifies the silicone replacement process, and reduces costs and time consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of transformer equipment, and discloses a falling-prevention device of an extra-high voltage high-resistance respirator, which comprises an extra-high voltage high-resistance respirator body and a limiting and fixing side block. A silica gel feeding port is movably connected to the top of the front of the extra-high voltage high-resistance respirator body. A silica gel discharging port is movably connected to the front of the outer surface of the extra-high voltage high-resistance respirator body. A top fixing rubber sleeve is fixedly sleeved to the top of the outer surface of the extra-high voltage high-resistance respirator body. The second threaded shaft and the adjusting spring can ensure the stability of the device after the flange is disconnected during the replacement of parts, avoid the random shaking of the device, improve the stability of the device during use, avoid the instability of the device after the disconnection of the top breathing pipe, and improve the safety of the device during use.
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Description

Technical Field

[0001] This invention belongs to the field of transformer equipment technology, specifically an anti-detachment device for an ultra-high voltage high-resistance breather. Background Technology

[0002] The ultra-high voltage high-resistance breather is a component in a transformer. It is mainly used to expel excess air from inside the transformer when it is heated and expands, and to draw in external air when the transformer oil temperature drops and contracts. At the same time, when external air is drawn in, the transformer oil in the breather's oil reservoir filters the external air, and then the silica gel inside the breather absorbs any unfiltered moisture, so that the transformer oil inside the transformer is not invaded by moisture from the external air, ensuring that its moisture content is always within the standard.

[0003] A current transformer breather fixing hardware, patent publication number CN208873585U, includes an oil cup, a support frame, a nut, and a silicone inlet. A silicone tank is positioned above the oil cup, and a flange is mounted above the silicone tank. The support frame is mounted on one side of the flange, and a connecting rod is mounted on one side of the support frame. A hinge groove is mounted on one side of the connecting rod. A connecting pipe is positioned at the upper end of the flange, and an oil reservoir is positioned at the upper end of the connecting pipe. The silicone inlet is positioned on one side of the oil cup, and an observation window is positioned below the silicone inlet. A silicone outlet is positioned below the observation window. The advantages are: 1. By using a screw and nut, the connecting frame can not only fix the flange but also move up and down to fix the silicone tank; 2. The hinge groove on the connecting rod makes the disassembly and fixing of this device more flexible.

[0004] Ultra-high voltage high-resistance breather is generally fixed at a height of 1.5 to 2 meters above the ground, mainly for easy inspection and maintenance. However, some transformer breather fixing hardware still suspends the entire breather below the flange during use. When the transformer oil temperature inside the breather changes, especially when the oil temperature rises, the oil volume increases, the air in the transformer oil tank is compressed, and the pressure increases. In order to maintain the pressure balance inside the transformer, some of the air in the oil tank will be discharged into the atmosphere through the transformer breather. At this time, bubbles will appear in the oil collection cup of the breather, sometimes very violently. Under such circumstances, the breather itself will vibrate. Since the entire equipment and the breather are suspended below the flange, after the vibration, gaps will appear at the connection, allowing air to enter and damage the transformer and the breather.

[0005] An existing suspended transformer silicone respirator fixing device, patent publication number CN105679505B, includes a fixing frame, a base supporting the respirator, a suspension mechanism, and a locking mechanism. The base is mounted on the fixing frame. The suspension mechanism includes two window sections that can rotate relative to the fixing frame between an open and closed position. The rotation axes of the two window sections are parallel and horizontally arranged. A semi-circular notch is recessed on the adjacent side of the two window sections. When the two window sections are in the closed position, the semi-circular notches of the two window sections fit together to form a circular hole that can be fitted onto the outside of the breathing tube, and the two window sections rest on the flange of the breathing tube. The circular hole and the base are vertically opposite each other. The locking mechanism connects the two window sections to keep them in the closed position. It has the following advantages: simple and compact structure, low cost, easy to carry, and convenient and quick silicone replacement.

[0006] Ultra-high voltage high-resistance breather is generally connected to the transformer's breather pipe. It is usually used by sealing the connection between the breather pipe and the bottom of the transformer using flanges and bolts. However, when using a suspended transformer silicone breather fixing device, instability may occur. In particular, the breather is more likely to become unstable when the silicone is replaced. At the same time, if there is a problem with tilting during installation, gaps will appear at the flange connection, allowing air and moisture to enter and damage the inside of the transformer. Summary of the Invention

[0007] To address the problems mentioned in the background section, this invention provides an anti-detachment device for an ultra-high voltage high-resistance breathing apparatus. This device offers advantages such as stable operation and good anti-vibration performance. Through the second threaded central shaft and adjusting spring, this invention ensures equipment stability even after disconnection from the flange during parts replacement, preventing arbitrary shaking and improving equipment stability during use. It also prevents instability after disconnection from the top breathing tube, thus enhancing equipment safety.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an anti-detachment device for an ultra-high voltage high-resistance breathing apparatus, comprising an ultra-high voltage high-resistance breathing apparatus body and a limiting and fixing side block; a silicone inlet is movably connected to the top of the ultra-high voltage high-resistance breathing apparatus body near the front; a silicone outlet is movably connected to the outer surface of the ultra-high voltage high-resistance breathing apparatus body near the front; a top fixing sleeve is fixedly fitted to the outer surface of the ultra-high voltage high-resistance breathing apparatus body near the top; a fixing flange is fixedly connected to the top of the ultra-high voltage high-resistance breathing apparatus body; and an adjusting limiting block is provided on the outer surface of the top fixing sleeve. A first threaded central shaft is movably sleeved on the first threaded central shaft. A top rotating handle is fixedly connected to the top of the first threaded central shaft. A rotating fixed base is connected to the bottom bearing of the first threaded central shaft. Limiting side rods are provided near the left and right sides of the first threaded central shaft. The bottom of the limiting side rods is fixedly connected to the top of the rotating fixed base. The bottom of the rotating fixed base is fixedly connected to the top of the limiting side block. A central fixed support is fixedly connected to the bottom of the limiting side block. A first receiving adjustment plate is movably sleeved on the outer surface of the central fixed support near the bottom. A top fixed outer cylinder is fixedly connected to the bottom of the central fixed support.

[0009] Preferably, a bottom fixed outer cylinder is movably sleeved on the inner side of the top fixed outer cylinder near the bottom, a second threaded central shaft is movably threaded to the middle of the first receiving adjustment plate, a second receiving adjustment plate is fixedly connected to the bottom of the bottom fixed outer cylinder, a fixed connecting block is fixedly connected to the limiting fixed side block near the front, and the outer surface of the second threaded central shaft is movably sleeved with the middle of the second receiving adjustment plate near the bottom.

[0010] Preferably, a bottom fixing support is fixedly connected to the bottom of the second receiving adjustment plate near the edge, and a fixing rubber sleeve is fixedly fitted to the bottom of the bottom fixing support.

[0011] Preferably, an adjusting spring is movably sleeved on the inner side of the top fixed outer cylinder and the bottom fixed outer cylinder, the top of the adjusting spring is fixedly connected to the bottom of the middle fixed support, and the bottom of the adjusting spring is fixedly connected to the top of the second receiving adjusting plate.

[0012] Preferably, the bottom bearing of the top rotating grip is connected to a limiting ring, and the top rotating grip is fixedly connected to the inner side of the limiting ring.

[0013] Preferably, the bottom of the ultra-high pressure high-resistance breathing apparatus body is provided with a limiting plate, the front of the limiting plate is provided with a glue receiving groove, and the bottom of the limiting plate is fixedly connected with a snap-fit ​​fixing block.

[0014] Preferably, a top fixing support is fixedly connected to the top of the limiting plate, and a bottom limiting ring is fixedly connected to the top of the top fixing support. The top of the limiting plate is in contact with the bottom of the body of the ultra-high pressure high-resistance respirator.

[0015] Preferably, a top limiting ring is fixedly connected to the inner side of the limiting and fixing side block near the top, and limiting sleeves are fixedly connected to the inner sides of both the top limiting ring and the bottom limiting ring.

[0016] Preferably, the snap-fit ​​fixing block is L-shaped and is distributed at an angle on the left and right sides of the adhesive groove.

[0017] Preferably, the inner side of the limiting and fixing side block is in contact with the outer surfaces of the bottom limiting ring and the top limiting ring, and the inner side of the limiting rubber sleeve is in contact with the outer surface of the main body of the ultra-high pressure high resistance respirator.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] This invention, through the second threaded central shaft and adjusting spring, facilitates the lifting or lowering of the first receiving adjusting plate by rotating the second threaded central shaft. This allows the components above the central fixed support to fit more closely to the surface of the UHV high-pressure respirator body. The top fixed outer cylinder and adjusting spring further enhance the flexibility of the equipment during use. The limiting plate and bottom limiting ring further improve the stability of the equipment during use. When parts need to be replaced, the support effect of the central and bottom fixed supports, along with the bottom support of the limiting plate, further enhances the stability of the equipment during use. This prevents the equipment from wobbling even after disconnecting from the flange during parts replacement, thus improving the safety of the equipment.

[0020] This invention, through the top fixing sleeve and the limiting sleeve, is beneficial in reducing the impact of the breather's shaking on the external anti-fall device when the transformer oil temperature inside the breather rises and the breather vibrates during use. The top fixing sleeve further reduces the impact of the breather's shaking on the external anti-fall device. The limiting sleeve improves the equipment's anti-vibration effect, preventing the breather's own vibration from affecting surrounding equipment and components, thus improving the safety of equipment use. The adjusting spring further enhances the buffering effect, effectively reducing damage caused by breather vibration and preventing gaps at the flange connection after vibration occurs. This further improves the safety of equipment use, reduces the adverse effects of equipment vibration, and enhances the stability of equipment operation.

[0021] This invention, through the first threaded central shaft and the limiting side rod, facilitates the disconnection of the fixed connecting flange from the top flange. Rotating the top rotating handle causes the first threaded central shaft to rotate, and the limiting side rod then lifts the adjusting limiting block, thereby raising the fixed connecting flange and ultimately the main body of the ultra-high voltage high-resistance breathing apparatus. This allows for convenient handling of the equipment. When silicone replacement is needed, the silicone container can be secured by the snap-fit ​​fixing block. The silicone outlet can then be opened to remove the silicone to be replaced. The inclusion of a receiving groove prevents the removed silicone from sticking to the surface of the limiting plate, improving the ease of use, reducing the time required for silicone replacement, lowering labor and financial costs, and reducing overall costs. Attached Figure Description

[0022] Figure 1 This is a bottom view of the overall structure of the present invention;

[0023] Figure 2 This is a top view of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the first receiving and adjusting plate of the present invention;

[0025] Figure 4 This is a schematic cross-sectional view of the top fixed outer cylinder of the present invention;

[0026] Figure 5 This is a schematic diagram of the fixed connecting block of the present invention;

[0027] Figure 6 This is a schematic diagram of the first threaded shaft of the present invention;

[0028] Figure 7 This is a schematic diagram of the adhesive receiving groove of the present invention;

[0029] Figure 8 This is a schematic diagram of the explosion of the limiting rubber sleeve of the present invention.

[0030] In the diagram: 1. Main body of the UHV high-pressure respirator; 2. Silicone inlet; 3. Silicone outlet; 4. Top fixing sleeve; 5. Fixed connecting flange; 6. Adjusting limit block; 7. First threaded central shaft; 8. Top rotating handle; 9. Limiting side rod; 10. Rotating fixed base; 11. Limiting fixed side block; 12. Fixed connecting block; 13. Middle fixed support column; 14. First receiving adjustment plate; 15. Limiting support plate; 16. Top fixed outer cylinder; 17. Bottom fixed outer cylinder; 18. Second threaded central shaft; 19. Second receiving adjustment plate; 20. Bottom fixed support column; 21. Fixing sleeve; 22. Adjusting spring; 23. Limiting ring; 24. Top fixed support column; 25. Bottom limiting ring; 26. Glue receiving groove; 27. Snap-fit ​​fixing block; 28. Top limiting ring; 29. ​​Limiting sleeve. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0033] Example 1:

[0034] like Figures 1-8As shown, an anti-detachment device for an ultra-high voltage high-resistance breathing apparatus includes an ultra-high voltage high-resistance breathing apparatus body 1 and limiting and fixing side blocks 11. The device is characterized by: a silicone inlet 2 movably connected to the top of the ultra-high voltage high-resistance breathing apparatus body 1 near the front; a silicone outlet 3 movably connected to the outer surface of the ultra-high voltage high-resistance breathing apparatus body 1 near the front; a top fixing sleeve 4 fixedly fitted to the outer surface of the ultra-high voltage high-resistance breathing apparatus body 1 near the top; a fixing flange 5 fixedly connected to the top of the ultra-high voltage high-resistance breathing apparatus body 1; an adjusting limiting block 6 provided on the outer surface of the top fixing sleeve 4; a first threaded central shaft 7 movably fitted to the middle of the adjusting limiting block 6; a top rotating handle 8 fixedly connected to the top of the first threaded central shaft 7; a rotating fixing base 10 connected to the bottom bearing of the first threaded central shaft 7; and limiting side rods 9 provided near the left and right sides of the first threaded central shaft 7. The bottom of the limiting side rod 9 is fixedly connected to the top of the rotating fixed base 10. The bottom of the rotating fixed base 10 is fixedly connected to the top of the limiting fixed side block 11. The bottom of the limiting fixed side block 11 is fixedly connected to the middle fixed support column 13. The outer surface of the middle fixed support column 13 is movably sleeved with the first receiving adjustment plate 14 near the bottom. The bottom of the middle fixed support column 13 is fixedly connected to the top fixed outer cylinder 16. The inner side of the top fixed outer cylinder 16 is movably sleeved with the bottom fixed outer cylinder 17 near the bottom. The middle of the first receiving adjustment plate 14 is movably threadedly connected to the second threaded central shaft rod 18. The bottom of the bottom fixed outer cylinder 17 is fixedly connected to the second receiving adjustment plate 19. The limiting fixed side block 11 is fixedly connected to the front with the fixed connecting block 12. The outer surface of the second threaded central shaft rod 18 is movably sleeved with the middle of the second receiving adjustment plate 19 near the bottom.

[0035] The top-fixed outer cylinder 16 and adjusting spring 22 improve the flexibility of the equipment during use. The limiting plate 15 and bottom limiting ring 25 further enhance the stability of the equipment. When parts need to be replaced, the support provided by the middle fixed support column 13 and bottom fixed support column 20, along with the bottom support function of the limiting plate 15, further improves the stability of the equipment during use. This enhances the stability of the equipment and prevents instability after disconnection from the top breathing tube, thus improving the safety of equipment use.

[0036] Example 2:

[0037] In this embodiment, the bottom fixed outer cylinder 17 is movably sleeved on the inner side of the top fixed outer cylinder 16 near the bottom. The middle part of the first receiving adjustment plate 14 is movably threaded with the second threaded central shaft 18. The bottom of the bottom fixed outer cylinder 17 is fixedly connected with the second receiving adjustment plate 19. The limiting fixed side block 11 is fixedly connected with the fixed connecting block 12 near the front. The outer surface of the second threaded central shaft 18 is movably sleeved with the middle part of the second receiving adjustment plate 19 near the bottom.

[0038] The top fixing sleeve 4 helps to reduce the impact of respirator vibration on surrounding connected equipment, further improving the stability of equipment use, and reducing the probability of safety hazards caused by respirator vibration.

[0039] Example 3:

[0040] The device includes a main body 1 for ultra-high voltage high-resistance breathing apparatus and a limiting and fixing side block 11. A silicone inlet 2 is movably connected to the top of the main body 1 near the front. A silicone outlet 3 is movably connected to the outer surface of the main body 1 near the front. A top fixing sleeve 4 is fixedly fitted to the outer surface of the main body 1 near the top. A fixing flange 5 is fixedly connected to the top of the main body 1. An adjusting limiting block 6 is provided on the outer surface of the top fixing sleeve 4. A first threaded central shaft 7 is movably fitted to the middle of the adjusting limiting block 6. A top rotating handle 8 is fixedly connected to the top of the first threaded central shaft 7. A rotating fixed base 10 is connected to the bottom bearing of the first threaded central shaft 7. A limiting side rod 9 is provided near the left and right sides of the first threaded central shaft 7. The bottom of the limiting side rod 9 is fixedly connected to the top of the rotating fixed base 10. The bottom of the rotating fixed base 10 is fixedly connected to the top of the limiting fixed side block 11. A middle fixed support column 13 is fixedly connected to the bottom of the limiting fixed side block 11. A first receiving adjustment plate 14 is movably sleeved on the outer surface of the middle fixed support column 13 near the bottom. A top fixed outer cylinder 16 is fixedly connected to the bottom of the middle fixed support column 13.

[0041] The bottom fixed outer cylinder 17 is movably sleeved on the inner side of the top fixed outer cylinder 16 near the bottom. The middle of the first receiving adjustment plate 14 is movably threaded with the second threaded central shaft 18. The bottom of the bottom fixed outer cylinder 17 is fixedly connected with the second receiving adjustment plate 19. The limiting fixed side block 11 is fixedly connected with the fixed connecting block 12 near the front. The outer surface of the second threaded central shaft 18 is movably sleeved with the middle of the second receiving adjustment plate 19 near the bottom.

[0042] The bottom bearing of the top rotating handle 8 is connected to a limiting ring 23, and the top rotating handle 8 is fixedly connected to the inner side of the limiting ring 23;

[0043] The bottom of the main body 1 of the ultra-high voltage high-resistance breathing apparatus is provided with a limiting plate 15, the front of the limiting plate 15 is provided with a glue receiving groove 26, and the bottom of the limiting plate 15 is fixedly connected with a snap-fit ​​fixing block 27.

[0044] The snap-fit ​​fixing block 27 is L-shaped and is distributed at an angle on the left and right sides of the adhesive groove 26.

[0045] By rotating the top rotating handle 8, the top rotating handle 8 drives the first threaded central shaft 7 to rotate. Then, through the limiting action of the limiting side rod 9, the adjusting limiting block 6 is raised. In this way, the fixed connecting flange 5 is lifted by the adjusting limiting block 6, thereby lifting the main body 1 of the ultra-high pressure high-resistance breathing apparatus, so as to facilitate the handling of the equipment. This improves the efficiency of the user when changing silicone, reduces the time required for silicone replacement, reduces the overall cost, and simplifies the operation of the user when changing silicone.

[0046] The working principle and usage process of this invention: After installation, the user can rotate the second threaded central shaft 18. This rotation raises or lowers the first receiving adjustment plate 14, allowing the components above the central fixed support 13 to fit more closely to the surface of the ultra-high pressure high-resistance breathing apparatus body 1. The top fixed outer cylinder 16 and adjusting spring 22 improve the flexibility of the equipment during use. The limiting plate 15 and bottom limiting ring 25 further enhance the stability of the equipment during use. When parts need to be replaced... At the same time, the stability of the equipment during use can be further improved by the support effect of the middle fixed support column 13 and the bottom fixed support column 20, as well as the bottom support function of the limiting support plate 15. This ensures the stability of the equipment even after disconnecting from the flange when replacing parts, preventing random shaking. During use, when the transformer oil temperature inside the breather rises and the breather vibrates, the top fixed rubber sleeve 4 helps reduce the impact of the breather's shaking on the external anti-fall device. Furthermore, the limiting rubber sleeve 29 helps improve the anti-vibration effect of the equipment, preventing vibration caused by the breather itself. This design avoids impacting surrounding equipment and components, thus improving equipment safety. Furthermore, adjusting the spring 22 enhances the buffering effect, effectively reducing damage caused by respirator vibration. When the user needs to repair or replace the main body 1 of the UHV high-pressure respirator, the connection can be broken from the top flange via the fixed connection flange 5. Rotating the top rotating handle 8 causes the first threaded shaft 7 to rotate. The limiting action of the limiting side rod 9, along with the limiting fixing ring 23, ensures the limiting side rod 9 remains in place. To improve stability during use, the top rotating handle 8 is rotated to reduce the impact on the limiting side rod 9, allowing the adjusting limiting block 6 to be raised. This, in turn, lifts the fixed connecting flange 5, thereby lifting the main body 1 of the ultra-high pressure high-resistance breathing apparatus, facilitating easy handling of the equipment. When silicone needs to be replaced, the silicone container can be secured by the snap-fit ​​fixing block 27. The silicone outlet 3 can then be opened to remove the silicone to be replaced. The opening of the silicone receiving groove 26 helps to prevent the removed silicone from sticking to the surface of the limiting tray 15, thus improving the ease of use of the equipment.

[0047] This invention, through the second threaded central shaft and adjusting spring, facilitates the lifting or lowering of the first receiving adjusting plate by rotating the second threaded central shaft. This allows the components above the central fixed support to fit more closely to the surface of the UHV high-pressure respirator body. The top fixed outer cylinder and adjusting spring further enhance the flexibility of the equipment during use. The limiting plate and bottom limiting ring further improve the stability of the equipment during use. When parts need to be replaced, the support effect of the central and bottom fixed supports, along with the bottom support of the limiting plate, further enhances the stability of the equipment during use. This prevents the equipment from wobbling even after disconnecting from the flange during parts replacement, thus improving the safety of the equipment.

[0048] This invention, through the top fixing sleeve and the limiting sleeve, is beneficial in reducing the impact of the breather's shaking on the external anti-fall device when the transformer oil temperature inside the breather rises and the breather vibrates during use. The top fixing sleeve further reduces the impact of the breather's shaking on the external anti-fall device. The limiting sleeve improves the equipment's anti-vibration effect, preventing the breather's own vibration from affecting surrounding equipment and components, thus improving the safety of equipment use. The adjusting spring further enhances the buffering effect, effectively reducing damage caused by breather vibration and preventing gaps at the flange connection after vibration occurs. This further improves the safety of equipment use, reduces the adverse effects of equipment vibration, and enhances the stability of equipment operation.

[0049] This invention, through the first threaded central shaft and the limiting side rod, facilitates the disconnection of the fixed connecting flange from the top flange. Rotating the top rotating handle causes the first threaded central shaft to rotate, and the limiting side rod then lifts the adjusting limiting block, thereby raising the fixed connecting flange and ultimately the main body of the ultra-high voltage high-resistance breathing apparatus. This allows for convenient handling of the equipment. When silicone replacement is needed, the silicone container can be secured by the snap-fit ​​fixing block. The silicone outlet can then be opened to remove the silicone to be replaced. The inclusion of a receiving groove prevents the removed silicone from sticking to the surface of the limiting plate, improving the ease of use, reducing the time required for silicone replacement, lowering labor and financial costs, and reducing overall costs.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing the fall off of an ultra-high voltage high-resistance breathing apparatus, comprising an ultra-high voltage high-resistance breathing apparatus body (1) and a limiting and fixing side block (11), characterized in that: A top fixing sleeve (4) is fixedly fitted onto the outer surface of the main body (1) of the UHV high-pressure respirator near the top. A fixing flange (5) is fixedly connected to the top of the main body (1). An adjustment limit block (6) is provided on the outer surface of the top fixing sleeve (4). A first threaded central shaft (7) is movably fitted into the middle of the adjustment limit block (6). A top rotating handle (8) is fixedly connected to the top of the first threaded central shaft (7). A bearing is connected to the bottom of the first threaded central shaft (7). There is a rotating fixed base (10), and the first threaded central shaft (7) is provided with a limiting side rod (9) near the left and right sides. The bottom of the limiting side rod (9) is fixedly connected to the top of the rotating fixed base (10), and the bottom of the rotating fixed base (10) is fixedly connected to the top of the limiting fixed side block (11). The bottom of the limiting fixed side block (11) is fixedly connected to a central fixed support column (13), and the outer surface of the central fixed support column (13) is movably sleeved with a first receiving adjustment plate (14) near the bottom. The bottom of the central fixed support column (13) is fixedly connected to the top fixed outer cylinder (16), and the bottom fixed outer cylinder (17) is movably sleeved on the inner side of the top fixed outer cylinder (16) near the bottom. The middle of the first receiving adjustment plate (14) is movably threadedly connected to the second threaded central shaft (18), and the bottom of the bottom fixed outer cylinder (17) is fixedly connected to the second receiving adjustment plate (19). The limiting fixed side block (11) is fixedly connected to the fixed connecting block (12) near the front. The outer surface of the second threaded central shaft (18) near the bottom is movably sleeved with the middle of the second receiving adjustment plate (19). An adjusting spring (22) is movably sleeved on the inner side of the top fixed outer cylinder (16) and the bottom fixed outer cylinder (17). The top of the adjusting spring (22) is fixedly connected to the bottom of the middle fixed support column (13), and the bottom of the adjusting spring (22) is fixedly connected to the top of the second receiving adjusting plate (19).

2. The anti-fall-off device for an ultra-high voltage high-resistance breathing apparatus according to claim 1, characterized in that: The bottom of the second receiving adjustment plate (19) is fixedly connected to a bottom fixing support (20) near the edge, and the bottom of the bottom fixing support (20) is fixedly fitted with a fixing rubber sleeve (21).

3. The anti-fall-off device for an ultra-high voltage high-resistance breathing apparatus according to claim 2, characterized in that: The bottom bearing of the top rotating grip (8) is connected to a limiting retaining ring (23).

4. The anti-fall-off device for an ultra-high voltage high-resistance breathing apparatus according to claim 3, characterized in that: The bottom of the main body (1) of the ultra-high pressure high resistance breathing apparatus is provided with a limiting plate (15), the front of the limiting plate (15) is provided with a glue receiving groove (26), and the bottom of the limiting plate (15) is fixedly connected with a snap-fit ​​fixing block (27).

5. The anti-detachment device for an ultra-high voltage high-resistance breathing apparatus according to claim 4, characterized in that: The top of the limiting plate (15) is fixedly connected to a top fixing pillar (24), and the top of the top fixing pillar (24) is fixedly connected to a bottom limiting ring (25). The top of the limiting plate (15) is in contact with the bottom of the body (1) of the ultra-high pressure high resistance breathing apparatus.

6. The anti-fall-off device for an ultra-high voltage high-resistance breathing apparatus according to claim 5, characterized in that: A top limiting ring (28) is fixedly connected to the inner side of the limiting and fixing side block (11) near the top, and a limiting sleeve (29) is fixedly connected to the inner side of both the top limiting ring (28) and the bottom limiting ring (25).

7. The anti-fall-off device for an ultra-high voltage high-resistance breathing apparatus according to claim 6, characterized in that: The snap-fit ​​fixing block (27) is L-shaped in general, and the snap-fit ​​fixing block (27) is distributed on the left and right sides of the adhesive groove (26) in an inclined manner.

8. The anti-fall-off device for an ultra-high voltage high-resistance breathing apparatus according to claim 7, characterized in that: The inner side of the limiting and fixing side block (11) is in contact with the outer surface of the bottom limiting ring (25) and the top limiting ring (28), and the inner side of the limiting rubber sleeve (29) is in contact with the outer surface of the body (1) of the ultra-high pressure high resistance breathing apparatus.