Flexible heating device for layered static water level in extremely cold area

Abstract

The application discloses a flexible heating device for a layered static leveling instrument in an extremely cold area and relates to the technical field of heating devices for static leveling instruments. The device comprises a shell, a mounting plate is threadedly connected to the bottom of the inner cavity of the shell, a liquid storage tank is fixedly connected to the upper end of the mounting plate, a symmetric heating mechanism for heating the liquid storage tank is arranged on the outer wall of the liquid storage tank, the heating mechanism comprises a shell body, flexible heating pieces are fixedly connected to the two sides of the inner cavity of the shell body, a knob is rotatably connected to the top of the shell body, and symmetric driven rods are slidably connected to the two ends of the shell body. When the shell body of the heating device is installed and fixed, the middle part of the flexible heating piece is automatically closely attached to the outer wall of the liquid storage tank, the symmetric driven rods and the roller are synchronously moved to the two sides by rotating the knob, the flexible heating pieces on the two sides of the fixed plate are gradually attached to the outer wall of the liquid storage tank, and the heating effect is ensured.

Description

Technical Field

[0001] This invention relates to the technical field of heating devices for hydrostatic levels, specifically a flexible heating device for a stratified hydrostatic level in extremely cold regions. Background Technology

[0002] A hydrostatic level is an instrument used to measure the relative elevation change between two or more points. It is commonly used in fields such as building settlement monitoring and dam safety monitoring. In extremely cold regions, stratified hydrostatic levels are prone to problems such as internal liquid freezing and component deformation due to low temperatures, leading to distorted monitoring data or even instrument damage. Flexible heating devices, with their advantages of being able to fit snugly and adapt well, can specifically solve this problem.

[0003] To better heat the hydrostatic level and prevent the internal liquid from freezing, a flexible heating device is usually used to heat the outer wall of the storage tube. However, when installing the flexible heating device manually on the outer wall of the storage tank, the limited internal space of the level makes it difficult for the flexible heating device to fit snugly against the outer wall of the storage tank, thus affecting the heating of the storage tank. Summary of the Invention

[0004] The purpose of this invention is to provide a flexible heating device for a hydrostatic leveling instrument for stratified levels in extremely cold regions, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A flexible heating device for a hydrostatic leveling instrument for extremely cold regions includes a housing. A mounting plate is threaded to the bottom of the inner cavity of the housing. A liquid storage tank is fixedly connected to the upper end of the mounting plate. A symmetrical heating mechanism for heating the liquid storage tank is fitted onto the outer wall of the liquid storage tank. The heating mechanism includes a housing. Flexible heating elements are fixedly connected to both sides of the inner cavity of the housing. A knob is rotatably connected to the top of the housing. Symmetrical driven rods are slidably connected to both ends of the housing. When the knob is rotated counterclockwise, the symmetrical driven rods simultaneously move away from the center position of the knob.

[0007] As a further aspect of the present invention: the bottom of the inner cavity of the outer shell is connected to the mounting plate by a horizontal adjusting bolt, a sleeve is fixedly connected to the lower end of the outer shell, a fixing bolt is threadedly connected to the middle of the sleeve, and the symmetrical sleeves are fixedly connected by bolts.

[0008] As a further aspect of the present invention: symmetrical arc-shaped grooves are provided on both the upper and lower sides of the shell, and a sliding groove is provided on the side of the inner cavity of the arc-shaped groove near the center of the shell. A first slider and a second slider are slidably connected to the inner cavity of the symmetrical sliding grooves respectively. A moving groove is provided at the upper end of both the first slider and the second slider. A driven rod is slidably connected to the inner cavity of the moving groove, and a fixing block is fixedly connected to the side of the driven rod away from the sliding groove near the middle of the shell.

[0009] As a further aspect of the present invention: a roller is rotatably connected between the upper and lower fixing blocks located on the same side; a fixing plate is fixedly connected to the middle of the outer wall of the flexible heating element near the knob; and the fixing plate is fixedly connected to the inner cavity side wall of the shell through symmetrical multi-stage telescopic rods.

[0010] As a further aspect of the present invention: grooves are provided between the symmetrical sliding grooves, the center of the grooves is the same as the center of the sliding grooves, gears are rotatably connected to the bottom of the inner cavity of the grooves, and a transmission rod is fixedly connected between the symmetrical gears. The transmission rod is rotatably connected to the middle of the housing, and the top of the transmission rod extends out of the top of the housing and is fixedly connected to the knob.

[0011] As a further aspect of the present invention: a second rack is slidably connected to the inner cavity of the slide groove on one side near the flexible heating element, and a first rack is slidably connected to the inner cavity of the slide groove on the other side near the flexible heating element. Both the first rack and the second rack mesh with a gear. The height of the gear is the same as the height of the first rack, and the height of the gear is the same as the height of the inner cavity of the groove.

[0012] As a further aspect of the present invention: notches are provided on the lower part of the side of the first slider close to the flexible heating element and on the lower part of the side of the second slider away from the flexible heating element; the first slider is slidably engaged with the second rack; and the second slider is slidably engaged with the first rack.

[0013] As a further aspect of the present invention: slots are provided on the side of the first slider away from the flexible heating element and on the side of the second slider close to the flexible heating element. A driven block is provided in the middle of the inner cavity of the slot. A pressing rod is fixedly connected to the upper end of the driven block. A through groove is provided in the lower part of the first slider and the second slider. The notch, the slot and the through groove are connected.

[0014] As a further aspect of the present invention: a vertical groove is provided in the middle of the side of the movable groove near the slot, and a pressing rod is slidably connected to the inner cavity of the vertical groove, and the end of the pressing rod away from the movable groove is fixedly connected to the driven block.

[0015] As a further aspect of the present invention: a first insert block is fixedly connected to one end of the first rack near the gear, and a second insert block is fixedly connected to one end of the second rack near the gear. A first inclined surface is provided at the end of the first insert block away from the first rack and at the end of the second insert block away from the second rack. A second inclined surface is provided at the end of the driven block away from the pressing rod. The first inclined surface and the second inclined surface are in contact with each other.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] Through the cooperation of multi-stage telescopic rods, driven rods, and springs, the center of the flexible heating element automatically and tightly adheres to the outer wall of the storage tank when the housing of the fixed heating device is installed. By rotating the knob, the symmetrical driven rods and rollers can be driven to move synchronously to both sides, pushing the flexible heating elements located on both sides of the fixed plate to gradually adhere to the outer wall of the storage tank. During the movement of the first and second racks, the driven block and the extrusion rod are pushed to extrude and limit the driven rod before the first and second sliders are moved. This ensures that the position of the driven rod is fixed before pushing the flexible heating elements located on both sides closer to the outer wall of the storage tank. This prevents the driven rod from shifting in the inner cavity of the moving groove during movement, which would prevent the flexible heating element from completely wrapping and adhering to the outer wall of the storage tank, thus affecting the heating effect on the storage tank. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the shell in this invention.

[0020] Figure 3 This is a schematic diagram of the heating mechanism in this invention.

[0021] Figure 4 For the present invention Figure 3 A schematic diagram of the structure of area A in the middle.

[0022] Figure 5 This is a schematic diagram of the flexible heating element in this invention.

[0023] Figure 6 This is a schematic diagram of the working state of the driven rod in this invention.

[0024] Figure 7 This is a schematic diagram of the arc-shaped groove in this invention.

[0025] Figure 8 This is a schematic diagram of the internal structure of the chute in this invention.

[0026] Figure 9 For the present invention Figure 8A schematic diagram of the structure of area B in the middle.

[0027] Figure 10 This is a schematic diagram of the structure of the first slider and the second slider in this invention.

[0028] In the diagram: 1. Outer shell; 2. Mounting plate; 3. Horizontal adjusting bolt; 4. Liquid storage tank; 5. Shell; 6. Cover; 7. Fixing bolt; 8. Flexible heating element; 9. Fixing plate; 10. Roller; 11. Driven rod; 12. Fixing block; 13. Arc groove; 14. Multi-stage telescopic rod; 15. Knob; 16. Transmission rod; 17. Slide groove; 18. First slider; 19. Second slider; 20. Gear; 21. First rack; 22. First insert; 23. Second rack; 24. Second insert; 25. Notch; 26. Slot; 27. Moving groove; 28. Driven block; 29. ​​Extrusion rod; 30. Vertical groove. Detailed Implementation

[0029] Please see Figure 1-3 In this embodiment of the invention, a flexible heating device for a hydrostatic leveling instrument for extremely cold regions includes a housing 1. A mounting plate 2 is threadedly connected to the bottom of the inner cavity of the housing 1. A liquid storage tank 4 is fixedly connected to the upper end of the mounting plate 2. A symmetrical heating mechanism for heating the liquid storage tank 4 is sleeved on the outer wall of the liquid storage tank 4. The heating mechanism includes a housing 5. A knob 15 is rotatably connected to the top of the housing 5. Symmetrical driven rods 11 are slidably connected to both ends of the housing 5. When the housing 5 rotates counterclockwise, the symmetrical driven rods 11 move away from the center position of the knob 15 simultaneously.

[0030] The bottom of the inner cavity of the outer shell 1 is connected to the mounting plate 2 by a horizontal adjusting bolt 3. The horizontal adjusting bolt 3 is a commonly used technical means in the prior art. The liquid storage tank 4 can be adjusted to be horizontal by the horizontal adjusting bolt 3. The lower end of the shell 5 is fixedly connected to the sleeve 6. The middle of the sleeve 6 is threadedly connected to the fixing bolt 7. By rotating the fixing bolt 7, the fixing bolt 7 can be driven to approach the outer wall of the liquid storage tank 4, thereby completing the fixing of the sleeve 6 and the shell 5. The symmetrical sleeves 6 are fixedly connected by bolts. After the symmetrical sleeves 6 are fixed together, the fixing bolt 7 can be rotated to fix the sleeves 6 to the outer wall of the liquid storage tank 4, thereby ensuring that the center position of the symmetrical sleeves 6 coincides with the center position of the liquid storage tank 4. The shell 5 and the sleeve 6 are both semi-circular. When the two shells 5 and the sleeve 6 are attached to each other, they can form a circle. The setting of the fixing bolt 7 can make the center of the circle formed by the shells 5 and the sleeve 6 coincide with the center of the liquid storage tank 4.

[0031] Please see Figure 2-4Symmetrical arc-shaped grooves 13 are provided on both the upper and lower sides of the shell 5. A sliding groove 17 is provided on the side of the inner cavity of the arc-shaped groove 13 near the center of the shell 5. A first slider 18 and a second slider 19 are slidably connected to the inner cavity of the symmetrical sliding groove 17. A moving groove 27 is provided on the upper end of the first slider 18 and the second slider 19. A driven rod 11 is slidably connected to the inner cavity of the moving groove 27. A fixing block 12 is fixedly connected to the end of the driven rod 11 away from the sliding groove 17 near the middle of the shell 5. The two fixing blocks 12 are elastically connected to the first slider 18 and the second slider 19 by springs. A roller is rotatably connected between the upper and lower fixing blocks 12 on the same side. 10. Flexible heating elements 8 are fixedly connected to both sides of the inner cavity of the housing 5. The flexible heating elements 8 are composed of a thermally conductive bonding layer, a flexible heating element (MXene circuit / carbon fiber film) and an insulating layer, which is a common technical means in the prior art. A fixing plate 9 is fixedly connected to the middle of the outer wall of the flexible heating elements 8 near the knob 15. When the symmetrical fixing block 12 is located in the inner cavity of the slide groove 17 near the knob 15, the outer wall of the roller 10 is in contact with both sides of the fixing plate 9. The fixing plate 9 is fixedly connected to the inner cavity side wall of the housing 5 through symmetrical multi-stage telescopic rods 14. The multi-stage telescopic rods 14 are elastic multi-stage telescopic rods, which is a common technical means in the prior art.

[0032] The multi-stage telescopic rod 14, driven rod 11, roller 10, and spring ensure that the flexible heating element 8 remains away from the inner wall of the housing 5. During the installation and fixing of the symmetrical housings 6 together, the side of the flexible heating element 8 away from the housing 5 gradually approaches and contacts the outer wall of the storage tank 4. As the flexible heating element 8 contacts the outer wall of the storage tank 4, it retracts towards the knob 15. Supported by the multi-stage telescopic rod 14 and spring, the middle of the side of the flexible heating element 8 away from the housing 5 is kept in contact with the outer wall. The outer wall of the liquid storage tank 4 is tightly fitted to the middle, thereby providing comprehensive and efficient heating to the liquid storage tank 4 and preventing the liquid stored in the liquid storage tank 4 from freezing due to the low temperature environment. When the first slider 18 and the second slider 19 drive the driven rods 11 and rollers 10 on both sides to move away from the position of the knob 15 along the inner cavity of the slide groove 17, the rollers 10 on both sides will continuously push the flexible heating elements 8 located on both sides of the fixed plate 9 to fit against the outer wall of the liquid storage tank 4 during the movement, so that more of the flexible heating elements 8 are wrapped around the outer wall of the liquid storage tank 4, thereby improving the heating effect of the liquid storage tank 4.

[0033] Please see Figure 7-9Each of the symmetrical grooves 17 has a groove, the center of which is the same as the center of the groove 17. A gear 20 is rotatably connected to the bottom of the groove's inner cavity. A transmission rod 16 is fixedly connected to the symmetrical gears 20. The transmission rod 16 is rotatably connected to the middle of the housing 5, and its top protrudes from the top of the housing 5 and is fixedly connected to a knob 15. Therefore, rotating the knob 15 will drive the symmetrical gears 20 to rotate synchronously. A second rack 23 is slidably connected to the inner cavity of one side of the groove 17 near the flexible heating element 8, and a... The first rack 21 and the second rack 23 both mesh with the gear 20. When the gear 20 rotates, it will drive the first rack 21 and the second rack 23 to move in the inner cavity of the slide groove 17. The height of the gear 20 is the same as the height of the first rack 21, the height of the first rack 21 is the same as the height of the second rack 23, and the height of the gear 20 is the same as the height of the inner cavity of the groove. That is, during the movement, the first rack 21 and the second rack 23 will pass through the position of the groove and move to the slide groove 17 on the other side, which will then push the first slider 18 and the second slider 19 to move away from the position of the knob 15 simultaneously.

[0034] Please see Figure 5-10 Since the symmetrical driven rods 11 are slidably connected to the second slider 19 and the first slider 18 respectively, under the action of the spring, the end of the driven rod 11 away from the knob 15 will remain in a position away from the knob 15. At the same time, the roller 10 will remain in a position away from the knob 15. Under the action of the elastic force, the outer wall of the roller 10 will push the flexible heating element 8 to adhere to the outer wall of the liquid storage tank 4. When the driven rod 11 is in the initial position, the roller 10 is located in the middle of the flexible heating element 8 and pushes the middle of the flexible heating element 8 close to the outer wall of the liquid storage tank 4. After the middle of the flexible heating element 8 and the outer wall of the liquid storage tank 4 are tightly adhered, due to the symmetrical shells 5 forming the outer wall of the liquid storage tank 4, the roller 10 will remain in a position away from the knob 15. The center of the circle coincides with the center of the liquid storage tank 4. As the driven rod 11 moves with the first slider 18 and the second slider 19, the roller 10 will gradually press the two sides of the flexible heating element 8 against the outer wall of the liquid storage tank 4. Since the driven rod 11 and the first slider 18 are elastically connected, when heating liquid storage tanks 4 of different diameters, the driven rod 11 and the multi-stage telescopic rod 14 will adaptively contract, thereby ensuring that when heating liquid storage tanks 4 of different sizes, the driven rod 11 and the multi-stage telescopic rod 14 will push the flexible heating element 8 to fit tightly against the outer wall of the liquid storage tank 4, thus ensuring the heating effect of the liquid storage tank 4.

[0035] Please see Figure 5-8As the symmetrical driven rod 11 slides along with the first slider 18 and the second slider 19 in the inner cavity of the groove 17, the outer wall of the roller 10 contacts the outer wall of the flexible heating element 8. During the movement of the roller 10 with the driven rod 11, the roller 10 will rotate continuously, thereby reducing the friction between the roller 10 and the flexible heating element 8. In order to ensure that the parts of the flexible heating element 8 located on both sides of the fixed plate 9 can be tightly attached to the outer wall of the liquid storage tank 4, the length of the driven rod 11 needs to be kept fixed during the movement of the driven rod 11, so as to ensure that the flexible heating element 8 wraps the liquid storage tank 4 more tightly, thereby making the heating effect of the flexible heating element 8 on the liquid storage tank 4 better. The lower part of the first slider 18 near the flexible heating element 8 and the lower part of the second slider 19 away from the flexible heating element 8 are both provided with notches 25. Through the opening of the notches 25, the first slider 18 slides with the second rack 23, and the second slider 19 slides with the first rack 21.

[0036] To ensure that during the movement of the first rack 21 and the second rack 23, the second rack 23 will contact the second slider 19 without touching the first slider 18, and similarly, the first rack 21 will contact the first slider 18 without touching the second slider 19. Slots 26 are provided on the side of the first slider 18 away from the flexible heating element 8 and on the side of the second slider 19 close to the flexible heating element 8. When the second rack 23 enters the inner cavity of the slot 26 on the second slider 19, it will drive the second slider 19 to move in the inner cavity of the slide groove 17, thereby driving the second slider 19 and the driven rod 11 and the roller 10 connected thereto to move synchronously. Similarly, when the first rack 21 enters the inner cavity of the slot 26 on the first slider 18, it will also drive the first slider 18 and the driven rod 11 and the roller 10 connected thereto to move synchronously.

[0037] Please see Figure 9-10 A driven block 28 is provided in the middle of the inner cavity of slot 26. A pressing rod 29 is fixedly connected to the upper end of the driven block 28. A through groove is opened in the lower part of the first slider 18 and the second slider 19. The notch 25, slot 26 and through groove are connected. The driven block 28 and the top of the inner cavity of the through groove are elastically connected by a spring. A vertical groove 30 is opened in the middle of the side of the moving groove 27 near slot 26. The pressing rod 29 is slidably connected to the inner cavity of the vertical groove 30. The end of the pressing rod 29 away from the moving groove 27 is fixedly connected to the driven block 28. Then, as the driven block 28 approaches the moving groove 27, it will drive the extrusion rod 29 to simultaneously approach the inner cavity of the moving groove 27. The extrusion rod 29 will then extrude and limit the driven rod 11, ensuring that the position of the driven rod 11 is fixed before it moves with the first slider 18 and the second slider 19. This prevents the driven rod 11 from being displaced in the inner cavity of the moving groove 27 during movement, which would prevent the flexible heating element 8 from completely wrapping and adhering to the outer wall of the liquid storage tank 4, thus affecting the heating effect on the liquid storage tank 4.

[0038] A first insert 22 is fixedly connected to one end of the first rack 21 near the gear 20, and a second insert 24 is fixedly connected to one end of the second rack 23 near the gear 20. A first inclined surface is provided at the end of the first insert 22 away from the first rack 21 and at the end of the second insert 24 away from the second rack 23. A second inclined surface is provided at the end of the driven block 28 away from the extrusion rod 29. The first and second inclined surfaces fit together. When the first rack 21 and the first insert 22 are driven to move synchronously, the first insert 22 and the second insert 24 will move synchronously. The first insert 22 and the second insert 24 will push the driven block 28 and the extrusion rod 29 closer to the position of the moving groove 27. Thus, the extrusion rod 29 extrudes and limits the driven rod 11 in the inner cavity of the moving groove 27, thereby ensuring that the length of the driven rod 11 does not change when the roller 10 moves, and ensuring that the roller 10 can tightly fit the flexible heating element 8 against the outer wall of the liquid storage tank 4.

Claims

1. A flexible heating device for a layered spirit level in polar regions, comprising a housing, characterized in that, The inner cavity bottom of the shell is threadedly connected with a mounting plate, the upper end of the mounting plate is fixedly connected with a liquid storage tank, the outer wall of the liquid storage tank is sleeved with symmetrical heating mechanisms for heating the liquid storage tank, the heating mechanisms comprise a shell, flexible heating pieces are fixedly connected on both sides of the inner cavity of the shell, a knob is rotatably connected to the top of the shell, symmetrical driven rods are slidably connected to both ends of the shell, and when the knob is counterclockwise rotated, the symmetrical driven rods are away from the center position of the knob synchronously. Symmetrical arc-shaped grooves are formed in the upper and lower sides of the shell, a sliding groove is formed in one side of the inner cavity of the arc-shaped groove close to the center position of the shell, and a first sliding block and a second sliding block are slidably connected in the inner cavities of the symmetrical sliding grooves respectively. Grooves are formed between the symmetrical sliding grooves, the center positions of the grooves are the same as the center positions of the sliding grooves, gears are rotatably connected to the inner cavity bottoms of the grooves, a transmission rod is fixedly connected between the symmetrical gears, the transmission rod is rotatably connected to the middle part of the shell, and the top of the transmission rod penetrates through the top of the shell and is fixedly connected with the knob. The inner cavity of the sliding groove on one side is slidably connected with a second gear rack close to the flexible heating piece, the inner cavity of the sliding groove on the other side is slidably connected with a first gear rack close to the flexible heating piece, the first gear rack and the second gear rack are engaged with the gears, the height of the gears is the same as the height of the first gear rack, and the height of the gears is the same as the height of the inner cavity of the groove.

2. The flexible heating device for a layered static water level gauge in extremely cold regions according to claim 1, characterized in that, The inner cavity bottom of the shell is connected with the mounting plate through horizontal adjusting bolts, the lower end of the shell is fixedly connected with a sleeve shell, the middle part of the sleeve shell is threadedly connected with fixing bolts, and the sleeve shells are fixedly connected through bolts.

3. The flexible heating device for a layered static water level gauge in extremely cold regions according to claim 1, characterized in that, The upper end of each of the first sliding block and the second sliding block is provided with a moving groove, a driven rod is slidably connected in the inner cavity of the moving groove, and a fixed block is fixedly connected to one side of the end of the driven rod away from the sliding groove and close to the middle part of the shell.

4. The flexible heating device for a layered static water level gauge in extremely cold regions according to claim 3, characterized in that, Rollers are rotatably connected between the upper and lower fixed blocks on the same side, the outer wall of the middle part of the flexible heating piece is fixedly connected with a fixed plate close to the knob, and the fixed plate is fixedly connected with the inner cavity side wall of the shell through symmetrical multi-stage telescopic rods.

5. A flexible heating device for a layered static water level gauge in polar regions according to claim 4, characterized in that, A notch is formed in the lower part of the side of the first sliding block close to the flexible heating piece and the lower part of the side of the second sliding block away from the flexible heating piece, the first sliding block is slidably connected with the second gear rack, and the second sliding block is slidably connected with the first gear rack.

6. The flexible heating device for a layered static water level gauge in extremely cold regions according to claim 5, characterized in that, An insertion slot is formed in the side of the first sliding block away from the flexible heating piece and the side of the second sliding block close to the flexible heating piece, a driven block is arranged in the inner cavity of the insertion slot, a pressing rod is fixedly connected to the upper end of the driven block, and a through groove is formed in the lower part of the first sliding block and the second sliding block.

7. The flexible heating device for a layered static water level gauge in extremely cold regions according to claim 6, characterized in that, A vertical groove is formed in the middle part of the side of the moving groove close to the insertion slot, and the pressing rod is slidably connected in the inner cavity of the vertical groove and fixedly connected to the driven block at the end away from the moving groove.

8. The flexible heating device for a layered static water level gauge in extremely cold regions according to claim 7, characterized in that, The first rack is fixedly connected with a first plug block at one end close to the gear, the second rack is fixedly connected with a second plug block at one end close to the gear, the first plug block is provided with a first inclined surface at one end away from the first rack, and the second plug block is provided with a first inclined surface at one end away from the second rack, the driven block is provided with a second inclined surface at one end away from the extrusion rod, and the first inclined surface and the second inclined surface are mutually attached.

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