Fire hydrant cover convenient opening device

Abstract

The utility model discloses a fire hydrant well lid convenient opening device, it includes ground and opening mechanism, the ground is installed with well lid, opening mechanism includes fixed mounting on the well lid and is set up the through -going hole of the penetration well lid, the top of ground is installed with motor, and the output of motor is fixedly installed with reciprocating screw rod, and the reciprocating screw rod is screw -threaded connection with installation cylinder, and the bottom fixed mounting of installation cylinder has installation rod, and the inner wall sliding of installation rod and through -going hole is opposite, and a plurality of recesses are equipped on installation rod, and the recess slidingly connected with the inner wall sliding of recess opposite rectangular block is equipped, and rectangular block and the bottom of well lid are opposite, and rectangular block and recess are fixedly installed with a plurality of first spring, this device utilizes the cooperation between rectangular block, motor, reciprocating screw rod, limit bolt and installation cylinder, has improved the efficiency of well lid opening, has reduced the waste of labor, has improved the efficiency of replacement limit piece simultaneously.

Description

Technical Field

[0001] This utility model belongs to the technical field of manhole cover opening devices, specifically a convenient opening device for fire hydrant manhole covers. Background Technology

[0002] In emergencies such as fires, opening manhole covers allows for quick access to fire hydrants, hoses, and nozzles, enabling the use of municipal water supply or fire-fighting reserves for firefighting operations. This buys time to control and extinguish the fire. In daily life, opening manhole covers allows for inspection of fire hydrants, checking for intact components, normal water flow, and any blockages or damage. It also facilitates maintenance, such as clearing debris and replacing worn parts, ensuring the hydrants function properly in emergencies and guaranteeing public fire safety and the effectiveness of emergency rescue.

[0003] When manually opening a manhole cover using a crowbar, although the crowbar utilizes the lever principle, it requires precise positioning of the force point and continuous application of significant pulling force. During this process, the pulling force is easily dispersed, and the manhole cover, being in close contact with the base for a long time, may rust or become stuck with debris, further increasing opening resistance. This results in a significant expenditure of physical effort and time without a quick opening, reducing the efficiency of manhole cover opening and wasting considerable labor. Furthermore, the size of the through-hole varies on different manhole covers, requiring corresponding adjustments to the tool size. Changing to different sized tools often necessitates disassembling numerous screws, a process that is not only tedious and time-consuming but may also be hampered by worn or lost screws, significantly reducing the compatibility with different manhole cover specifications and opening efficiency. Therefore, this application proposes a convenient opening device for fire hydrant manhole covers. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a convenient opening device for fire hydrant manhole covers, which effectively solves the problems of low opening efficiency and inconvenience in opening different manhole covers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a convenient opening device for a fire hydrant manhole cover, comprising a ground surface and an opening mechanism, wherein a manhole cover is installed on the ground surface; the opening mechanism includes a through-hole fixedly installed on the manhole cover and penetrating the manhole cover, a motor is installed above the ground surface, a reciprocating screw is fixedly installed at the output end of the motor, an installation cylinder is threadedly connected to the reciprocating screw, an installation rod is fixedly installed at the bottom of the installation cylinder, the installation rod slides against the inner wall of the through-hole, the installation rod is provided with multiple grooves, a rectangular block is slidably connected in the groove and slides against the inner wall of the groove, the rectangular block abuts against the bottom of the manhole cover, and multiple first springs are fixedly installed on the rectangular block and the groove.

[0006] Preferably, a through groove is provided on the ground, the manhole cover slides against the inner wall of the through groove, and a ring that slides against the manhole cover is fixedly installed in the through groove.

[0007] Preferably, a plurality of fixed columns are fixedly installed at the upper end of the ground, and an mounting plate is fixedly installed at the upper end of the fixed columns. The output end of the motor passes through the mounting plate and is rotatably connected to it.

[0008] Preferably, two oppositely arranged connecting plates are fixedly installed on the bottom of the mounting plate, and the mounting cylinder is opposite to the connecting plates and located between the two connecting plates.

[0009] Preferably, the connecting plate is provided with a T-shaped groove, and a T-shaped block is slidably connected in the T-shaped groove and slides against the inner wall of the T-shaped groove. The T-shaped block is fixedly connected to the mounting cylinder.

[0010] Preferably, U-shaped plates are fixedly installed on both sides of the mounting rod, and T-shaped plates that slide against the inner wall of the U-shaped plates are fixedly installed on the mounting cylinder.

[0011] Preferably, the T-shaped plate is provided with a sliding groove, and a limiting bolt that slides against the inner wall of the sliding groove is slidably connected in the sliding groove. The limiting bolt passes through the U-shaped plate and is slidably connected to it. A second spring is fixedly installed on the limiting bolt and the U-shaped plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting an opening mechanism, and utilizing the cooperation between the rectangular block, the first spring, the motor, the reciprocating screw, and the mounting cylinder, the output end of the motor drives the reciprocating screw to rotate. The rotation of the reciprocating screw drives the non-rotating mounting cylinder to move downward. The mounting cylinder drives the mounting rod to move downward. The downward movement of the mounting rod drives the rectangular block to move downward. The rectangular block abuts against the bottom of the manhole cover. Subsequently, the rotation of the reciprocating screw drives the mounting cylinder to move upward. The mounting cylinder drives the mounting rod to move upward. The mounting rod drives the rectangular block to move upward. The rectangular block drives the manhole cover to move upward, thereby opening the manhole cover. This avoids the need for manual prying to open the manhole cover, reducing labor waste and improving the efficiency of opening the manhole cover. At the same time, the cooperation between the limit bolt and the second spring allows for quick disassembly and assembly of the mounting rod, improving the efficiency of replacing the limit component. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the convenient opening device for fire hydrant manhole covers of this utility model; Figure 2 This is a cross-sectional view of the convenient opening device for fire hydrant manhole covers of this utility model; Figure 3This is a side sectional view of the convenient opening device for fire hydrant manhole covers of this utility model; Figure 4 This utility model Figure 2 Enlarged view of point A in the middle; Figure 5 This utility model Figure 2 Enlarged view of point B in the middle; Figure 6 This utility model Figure 3 Enlarged view of point C in the middle;

[0015] In the diagram: 1. Ground; 2. Fixed column; 3. Mounting plate; 4. Motor; 5. Connecting plate; 6. Manhole cover; 7. Mounting rod; 8. Through groove; 9. Ring; 10. Rectangular block; 11. Groove; 12. Through opening; 13. First spring; 14. Reciprocating screw; 15. Mounting cylinder; 16. T-shaped plate; 17. U-shaped plate; 18. Slide groove; 19. Limiting bolt; 20. Second spring; 21. T-shaped slide groove; 22. T-shaped block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Depend on Figures 1-6 The present invention includes a ground surface 1 and an opening mechanism. A manhole cover 6 is installed on the ground surface 1, and a through groove 8 is provided on the ground surface 1. The manhole cover 6 slides against the inner wall of the through groove 8. A ring 9 is fixedly installed in the through groove 8 and slides against the manhole cover 6. The opening mechanism includes a through opening 12 fixedly installed on the manhole cover 6 and passing through the manhole cover 6. A motor 4 is installed above the ground surface 1. Multiple fixing posts 2 are fixedly installed at the upper end of the ground surface 1. An mounting plate 3 is fixedly installed at the upper end of the fixing posts 2. The output end of the motor 4 passes through the mounting plate 3 and is rotatably connected to it. A reciprocating screw 14 is fixedly installed at the output end of the motor 4. An installation cylinder 15 is threadedly connected to the reciprocating screw 14. Two opposing connecting plates 5 are fixedly installed at the bottom of the mounting plate 3. The installation cylinder 15 is opposite to the connecting plate 5 and located between the two connecting plates 5. A T-shaped groove 21 is provided on the connecting plate 5. A T-shaped block 22 is slidably connected in the T-shaped groove 21 and slides against the inner wall of the T-shaped groove 21. The T-shaped block 22 is fixedly connected to the installation cylinder 15. The installation rod 7 slides against the inner wall of the through hole 12. The installation rod 7 is provided with multiple grooves 11. A rectangular block 10 slides against the inner wall of the groove 11 and slides against the inner wall of the groove 11. The rectangular block 10 abuts against the bottom of the manhole cover 6. Multiple first springs 13 are fixedly installed on the rectangular block 10 and the groove 11. An installation rod 7 is fixedly installed at the bottom of the installation cylinder 15. U-shaped plates 17 are fixedly installed on both sides of the installation rod 7. A T-shaped plate 16 is fixedly installed on the installation cylinder 15 and slides against the inner wall of the U-shaped plate 17. A groove 18 is provided on the T-shaped plate 16. A limiting bolt 19 that slides against the inner wall of the groove 18 is slidably connected in the groove 18. The limiting bolt 19 passes through the U-shaped plate 17 and is slidably connected to it. A second spring 20 is fixedly installed on the limiting bolt 19 and the U-shaped plate 17. During operation, the mounting rod 7 is positioned opposite the through-hole 12. The motor 4 is turned on, and its output drives the reciprocating screw 14 to rotate. Because the T-block 22 slides against the inner wall of the T-groove 21 and cannot rotate, and because the T-block 22 is fixedly connected to the mounting cylinder 15, the mounting cylinder 15 cannot rotate. The rotation of the reciprocating screw 14 causes the non-rotating mounting cylinder 15 to move downwards. The mounting cylinder 15 then drives the mounting rod 7 downwards, which in turn causes the rectangular block 10 to move downwards. The rectangular block 10, moving downwards, abuts against the through-hole 12. Under the pressure of the through-hole 12, the rectangular block 10 moves into the groove 11. Simultaneously, the rectangular block 10 presses... When the first spring 13 is compressed, the rectangular block 10 continues to move downwards and will leave the through-hole 12, so that the rectangular block 10 is no longer under the pressure of the through-hole 12. The first spring 13 is no longer under pressure, and the first spring 13 will drive the rectangular block 10 to move out of the groove 11. The rectangular block 10 will abut against the bottom of the manhole cover 6. Then the rotation of the reciprocating screw 14 will drive the mounting cylinder 15 to move upwards. The mounting cylinder 15 will drive the mounting rod 7 to move upwards. The mounting rod 7 will drive the rectangular block 10 to move upwards. The rectangular block 10 will drive the manhole cover 6 to move upwards, thereby opening the manhole cover 6. This avoids the need to manually open the manhole cover 6 with a crowbar, reduces the waste of labor, and improves the efficiency of opening the manhole cover 6. The through-holes 12 on the manhole cover 6 are of different sizes. When it is necessary to accommodate different sized through-holes 12, pulling the limiting bolt 19 can cause the limiting bolt 19 to move away from the slide groove 18, and the second spring 20 is stretched. The U-shaped plate 17 is no longer limited, and pulling the mounting rod 7 can remove the U-shaped plate 17, completing the disassembly of the mounting rod 7. The new U-shaped plate 17 is then positioned opposite the T-shaped plate 16. Pushing the mounting rod 7 can move the mounting rod 7, which in turn moves the U-shaped plate 16. 7. When the T-shaped plate 16 moves, it will slide against the inner wall of the U-shaped plate 17. When the bottom of the T-shaped plate 16 and the U-shaped plate 17 are against each other, the limiting bolt 19 is set opposite to the slide groove 18. When the limiting bolt 19 is released, the second spring 20 can drive the limiting bolt 19 to move. The moving limiting bolt 19 will slide against the inner wall of the slide groove 18, thereby limiting the U-shaped plate 17 and completing the limiting of the mounting rod 7. This allows for quick replacement of the mounting rod 7 and improves the efficiency of replacing the limiting component.

[0018] Working principle: During operation, the mounting rod 7 is positioned opposite the through-hole 12. The motor 4 is turned on, and its output drives the reciprocating screw 14 to rotate. Because the T-block 22 slides against the inner wall of the T-groove 21 and cannot rotate, and because the T-block 22 is fixedly connected to the mounting cylinder 15, the mounting cylinder 15 cannot rotate. The rotation of the reciprocating screw 14 causes the non-rotating mounting cylinder 15 to move downwards. The mounting cylinder 15 then drives the mounting rod 7 downwards, which in turn causes the rectangular block 10 to move downwards. The rectangular block 10, moving downwards, comes into contact with the through-hole 12. Under the pressure of the through-hole 12, the rectangular block 10 moves into the groove 11. Simultaneously, the rectangular block 10... The first spring 13 is compressed, and the rectangular block 10 continues to move downwards and leaves the through hole 12, so that the rectangular block 10 is no longer under the pressure of the through hole 12. The first spring 13 is no longer under pressure, and the first spring 13 will drive the rectangular block 10 to move out of the groove 11. The rectangular block 10 will abut against the bottom of the manhole cover 6. Then the rotation of the reciprocating screw 14 will drive the mounting cylinder 15 to move upwards. The mounting cylinder 15 will drive the mounting rod 7 to move upwards. The mounting rod 7 will drive the rectangular block 10 to move upwards. The rectangular block 10 will drive the manhole cover 6 to move upwards, thereby opening the manhole cover 6. This avoids the need to manually open the manhole cover 6 with a crowbar, reduces the waste of labor, and improves the efficiency of opening the manhole cover 6. The through-holes 12 on the manhole cover 6 are of different sizes. When it is necessary to accommodate different sized through-holes 12, pulling the limiting bolt 19 can cause the limiting bolt 19 to move away from the slide groove 18, and the second spring 20 is stretched. The U-shaped plate 17 is no longer limited, and pulling the mounting rod 7 can remove the U-shaped plate 17, completing the disassembly of the mounting rod 7. The new U-shaped plate 17 is then positioned opposite the T-shaped plate 16. Pushing the mounting rod 7 can move the mounting rod 7, which in turn moves the U-shaped plate 16. 7. When the T-shaped plate 16 moves, it will slide against the inner wall of the U-shaped plate 17. When the bottom of the T-shaped plate 16 and the U-shaped plate 17 are against each other, the limiting bolt 19 is set opposite to the slide groove 18. When the limiting bolt 19 is released, the second spring 20 can drive the limiting bolt 19 to move. The moving limiting bolt 19 will slide against the inner wall of the slide groove 18, thereby limiting the U-shaped plate 17 and completing the limiting of the mounting rod 7. This allows for quick replacement of the mounting rod 7 and improves the efficiency of replacing the limiting component.

Claims

1. A convenient opening device for hydrant well cover, comprising a ground (1) and an opening mechanism, characterized in that: A manhole cover (6) is installed on the ground (1); the opening mechanism includes a through-hole (12) fixedly installed on the manhole cover (6) and passing through the manhole cover (6), a motor (4) is installed above the ground (1), a reciprocating screw (14) is fixedly installed at the output end of the motor (4), an installation cylinder (15) is threadedly connected to the reciprocating screw (14), an installation rod (7) is fixedly installed at the bottom of the installation cylinder (15), the installation rod (7) slides against the inner wall of the through-hole (12), the installation rod (7) is provided with multiple grooves (11), a rectangular block (10) slides against the inner wall of the groove (11) in the groove (11), the rectangular block (10) abuts against the bottom of the manhole cover (6), and multiple first springs (13) are fixedly installed on the rectangular block (10) and the groove (11).

2. The convenient opening device for a fire hydrant cover according to claim 1, characterized in that: A through groove (8) is provided on the ground (1). The manhole cover (6) slides against the inner wall of the through groove (8). A ring (9) is fixedly installed in the through groove (8) and slides against the manhole cover (6).

3. The convenient opening device for a fire hydrant cover according to claim 1, characterized in that: Multiple fixed columns (2) are fixedly installed on the upper end of the ground (1), and an installation plate (3) is fixedly installed on the upper end of the fixed column (2). The output end of the motor (4) passes through the installation plate (3) and is rotatably connected to it.

4. The convenient opening device for a fire hydrant cover according to claim 3, characterized in that: The bottom of the mounting plate (3) is fixedly installed with two oppositely arranged connecting plates (5), and the mounting cylinder (15) is arranged opposite to the connecting plates (5) and located between the two connecting plates (5).

5. The convenient opening device for a fire hydrant cover according to claim 4, characterized in that: The connecting plate (5) is provided with a T-shaped groove (21), and a T-shaped block (22) is slidably connected in the T-shaped groove (21) and slides against the inner wall of the T-shaped groove (21). The T-shaped block (22) is fixedly connected to the mounting cylinder (15).

6. The convenient opening device for a fire hydrant manhole cover according to claim 1, characterized in that: U-shaped plates (17) are fixedly installed on both sides of the mounting rod (7), and a T-shaped plate (16) is fixedly installed on the mounting cylinder (15) to slide against the inner wall of the U-shaped plate (17).

7. A convenient opening device for a fire hydrant manhole cover according to claim 6, characterized in that: The T-shaped plate (16) is provided with a sliding groove (18), and a limiting bolt (19) that slides against the inner wall of the sliding groove (18) is slidably connected in the sliding groove (18). The limiting bolt (19) passes through the U-shaped plate (17) and is slidably connected to it. A second spring (20) is fixedly installed on the limiting bolt (19) and the U-shaped plate (17).

Images