Multi-functional well lid opening device

Abstract

The utility model relates to the technical field of well lid, especially a multifunctional well lid opening device, which comprises an operating rod, a cleaning mechanism arranged on the operating rod, a connecting assembly mounted on the operating rod, an anti-skid mechanism located at one end of the operating rod away from the cleaning mechanism, a pry head assembly arranged at one end of the operating rod close to the anti-skid mechanism, and a sharp end of the cleaning mechanism for dredging the well lid hole. The utility model reduces the physical exertion required for the operator to maintain the stability of the pry bar, avoids the displacement risk of the pry bar caused by skidding, ensures personal safety, improves the efficiency of well lid opening operation, and is suitable for different well lid hole positions, greatly improves the operation convenience, and enhances the use reliability.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a multifunctional manhole cover opening device. Background Technology

[0002] In municipal engineering, power and telecommunications, and water supply and drainage fields, manhole covers serve as crucial protective components for underground facilities, requiring frequent opening and maintenance. Currently, the industry commonly uses pry bars as the primary tool for opening manhole covers. These tools typically consist of a rod and a pry head at one end. By inserting the pry head into the gap between the manhole cover and the base, and pulling upwards, the manhole cover is pried open. In practical use, one end of the existing pry bar needs to provide reliable support to the ground to ensure that the applied force is effectively transmitted to the pry head and acts on the manhole cover. However, the support end of existing pry bars is often a smooth rod end face or a simple flat structure. When the working surface is smooth, such as cement or tile, or when there is standing water or oil, the friction between the support end and the ground significantly decreases, making slippage very likely. This slippage problem not only requires operators to expend more physical effort to maintain the stability of the pry bar, but in severe cases, the pry bar may even suddenly shift due to support failure. This not only makes it impossible to pry up the manhole cover smoothly, but may also pose a personal safety hazard to the operator, and reduce the efficiency of manhole cover opening operations. Therefore, this utility model proposes a multifunctional manhole cover opening device. Utility Model Content

[0003] The purpose of this invention is to address the problems in the prior art where the support end of existing pry bars is mostly a smooth rod end face or a simple planar structure, which significantly reduces the friction with the ground when the ground is smooth or has water or oil stains, making it easy to slip, which leads to increased physical exertion for operators, difficulty in opening manhole covers, personal safety hazards, and reduced work efficiency. The invention proposes a multi-functional manhole cover opening device.

[0004] The technical solution of this utility model is as follows: A multifunctional manhole cover opening device, comprising an operating rod; a cleaning mechanism disposed on the operating rod, the cleaning mechanism having a tip for unblocking the manhole cover hole; a connecting assembly installed on the operating rod, the connecting assembly for extending into the manhole cover hole to form a reliable connection; an anti-slip mechanism located at the end of the operating rod away from the cleaning mechanism, the anti-slip mechanism contacting the ground and preventing slippage; and a pry head assembly disposed at the end of the operating rod near the anti-slip mechanism, the pry head assembly for extending into the manhole cover hole to perform a prying action.

[0005] Optionally, the operating lever includes a grip, one end of which is fixedly connected to a threaded rod, and the end of the threaded rod away from the grip is fixedly connected to two sets of connecting rods. The two sets of connecting rods are symmetrically arranged, and the ends of the two sets of connecting rods away from the threaded rod are jointly fixedly connected to a fixed cylinder.

[0006] Optionally, the cleaning mechanism includes a rotating cylinder threadedly connected to a threaded rod. The outer ring of the rotating cylinder has a first sliding groove. A first rotating ring is fixedly connected to the outer ring of the first sliding groove. A connecting cylinder is sleeved on the outer ring of the first rotating ring. A sliding ring is installed on the inner wall of the connecting cylinder. The sliding ring is sleeved on the outer ring of two sets of connecting rods and slides with them.

[0007] Optionally, a limiting rod is fixedly connected in the sliding ring, and the limiting rod is slidably connected between two sets of connecting rods.

[0008] Optionally, a cleaning rod is fixedly connected to the side of the limiting rod away from the rotating cylinder, the cleaning rod is slidably connected in the fixed cylinder, and the end of the cleaning rod away from the rotating cylinder is conical.

[0009] Optionally, the outer ring of the rotating cylinder is fitted with an anti-slip sleeve.

[0010] Optionally, the connecting assembly includes an adjusting sleeve threaded onto the grip, the adjusting sleeve having a second sliding groove, a second rotating ring rotatably connected in the second sliding groove, and a hook fixedly connected to the outside of the second rotating ring.

[0011] Optionally, the anti-slip mechanism includes two sets of side plates fixedly connected to the end of the grip rod away from the threaded rod, a rotating shaft fixedly connected between the two sets of side plates, a rotating block rotatably connected to the rotating shaft, and an anti-slip block fixedly connected to one side of the rotating block.

[0012] Optionally, the rotating shaft is interference-fitted with the rotating block.

[0013] Optionally, the pry head assembly includes a sleeve fixedly fitted onto the outer ring of the grip bar, and two sets of symmetrically arranged mounting cylinders are fixedly connected to the side of the sleeve, with a pry bar threaded into each of the two sets of mounting cylinders.

[0014] In summary, this application includes at least one of the following beneficial technical effects: This utility model, through the setting of the anti-slip mechanism, has a rotating block rotatably connected to the rotating shaft between the two sets of side plates, which can flexibly adjust the contact angle between the anti-slip block and the ground. Moreover, the interference fit between the rotating shaft and the rotating block can keep the anti-slip block at a fixed angle. The contact of the anti-slip block with the ground ensures that when the operator uses it as a support point to pry the manhole cover, the support will not fail due to the slippery ground or the presence of water or oil. This not only reduces the physical exertion required for the operator to maintain the stability of the pry bar and avoids the risk of pry bar displacement caused by slippage, thus ensuring personal safety, but also improves the efficiency of manhole cover opening operations. Furthermore, this utility model, through the setting of the cleaning mechanism, allows the cleaning rod to extend out of the fixed cylinder and use the conical tip to unclog the blocked manhole cover hole. When not in use, the fixed cylinder can be retracted to avoid accidental injury. The connecting component can adjust the position of the hook by rotating the adjusting sleeve, and cooperate with the second rotating ring to realize the hook rotation, adapting to different manhole cover hole positions, greatly improving the convenience of operation and enhancing the reliability of use. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a multifunctional manhole cover opening device; Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This is a schematic diagram of the rotating cylinder in its extended state; Figure 4 This is a disassembled and anatomically designed diagram of the cleaning mechanism; Figure 5 This is a schematic diagram of the disassembled structure of the connecting components.

[0016] Figure label: 1. Operating lever; 11. Handle; 12. Threaded rod; 13. Connecting rod; 14. Fixing cylinder; 2. Cleaning mechanism; 21. Rotating cylinder; 22. First chute; 23. First rotating ring; 24. Connecting cylinder; 25. Sliding ring; 26. Limiting rod; 27. Cleaning rod; 28. Anti-slip sleeve; 3. Connecting component; 31. Adjusting sleeve; 32. Second slide groove; 33. Second rotating ring; 34. Hook; 4. Anti-slip mechanism; 41. Side plate; 42. Rotating shaft; 43. Rotating block; 44. Anti-slip block; 5. Pry bar assembly; 51. Sleeve; 52. Mounting sleeve; 53. Pry bar. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0022] like Figure 1 As shown, the present invention proposes a multifunctional manhole cover opening device, including an operating rod 1. The operating rod 1 includes a grip 11, one end of which is fixedly connected to a threaded rod 12. The end of the threaded rod 12 away from the grip 11 is fixedly connected to two sets of connecting rods 13. The two sets of connecting rods 13 are symmetrically arranged. The ends of the two sets of connecting rods 13 away from the threaded rod 12 are jointly fixedly connected to a fixing cylinder 14. The grip 11, threaded rod 12, connecting rod 13 and fixing cylinder 14 are designed as a single unit, with high overall structural strength. The operating rod 1 makes it easy for the operator to hold.

[0023] like Figures 1 to 4As shown, the opening device includes a cleaning mechanism 2 mounted on the operating rod 1. The cleaning mechanism 2 has a tip for unblocking manhole covers. The cleaning mechanism 2 includes a rotating cylinder 21 threadedly connected to a threaded rod 12. The rotating cylinder 21 moves along the length of the threaded rod 12 when rotating. An anti-slip sleeve 28 is fixedly fitted around the outer ring of the rotating cylinder 21, facilitating rotation of the rotating cylinder 21. A first sliding groove 22 is formed on the outer ring of the rotating cylinder 21. A first rotating ring 23 is fixedly connected to the outer ring of the first sliding groove 22. A connecting cylinder 24 is fitted around the outer ring of the first rotating ring 23. Through the arrangement of the first sliding groove 22 and the first rotating ring 23, the connecting cylinder 24 moves synchronously when the rotating cylinder 21 rotates and moves. A sliding ring 25 is installed on the inner wall of the connecting cylinder 24. The sliding ring 25 is fitted around the outer ring of two sets of connecting rods 13 and slides with them. A limit rod 26 is fixedly connected in the sliding ring 25. The limit rod 26 is slidably connected between the two sets of connecting rods 13.

[0024] Furthermore, when the rotating cylinder 21 rotates, the connecting cylinder 24 and the sliding ring 25 are prevented from rotating. Simultaneously, as the rotating cylinder 21 moves, it causes the sliding ring 25 to slide on the outer ring of the two sets of connecting rods 13, while the limiting rod 26 slides between the two sets of connecting rods 13. A cleaning rod 27 is fixedly connected to the side of the limiting rod 26 away from the rotating cylinder 21. When the limiting rod 26 moves, it causes the cleaning rod 27 to move synchronously. The cleaning rod 27 is slidably connected in the fixed cylinder 14. The end of the cleaning rod 27 away from the rotating cylinder 21 is conical. After movement, the tip of the cleaning rod 27 extends out of the fixed cylinder 14, facilitating the clearing of manhole covers blocked by debris. When the cleaning rod 27 is not in use, it is retracted into the fixed cylinder 14 to prevent the tip of the cleaning rod 27 from accidentally injuring operators and to ensure the safety of the device.

[0025] like Figure 1 and Figure 5 As shown, the opening device also includes a connecting assembly 3 mounted on the operating lever 1. The connecting assembly 3 is used to extend into the manhole cover hole to form a reliable connection. The connecting assembly 3 includes an adjusting sleeve 31 threadedly connected to the lever 11. The adjusting sleeve 31 moves along its own length direction when rotated. The adjusting sleeve 31 has a rough surface to facilitate rotation. A second sliding groove 32 is provided on the adjusting sleeve 31. A second rotating ring 33 is rotatably connected in the second sliding groove 32. A hook 34 is fixedly connected to the outside of the second rotating ring 33. By rotating the second rotating ring 33, the hook 34 can be rotated downwards to align with the manhole cover hole, making it easier for the hook 34 to enter the manhole cover hole and hook the manhole cover, thereby opening the manhole cover when the operating lever 1 is deflected. For different models of manhole covers, the distance between the manhole cover hole and the edge is different. By rotating the adjusting sleeve 31, the position of the hook 34 is adjusted so that the hook 34 is aligned with the manhole cover hole.

[0026] Secondly, the opening device includes an anti-slip mechanism 4 located at the end of the operating lever 1 furthest from the cleaning mechanism 2. The anti-slip mechanism 4 contacts the ground and prevents slippage. The anti-slip mechanism 4 includes two sets of side plates 41 fixedly connected to the end of the handle 11 furthest from the threaded rod 12. A rotating shaft 42 is fixedly connected between the two sets of side plates 41. A rotating block 43 is rotatably connected to the rotating shaft 42. The arrangement of the side plates 41 and the rotating shaft 42 allows the rotating block 43 to rotate at one end of the handle 11. An anti-slip block 44 is fixedly connected to one side of the rotating block 43. The anti-slip block 44 rotates on the rotating shaft 42 via the rotating block 43, facilitating the rotation of the anti-slip block 44 so that its rough surface on one side contacts the ground, increasing friction and preventing slippage. The side of the anti-slip block 44 in contact with the ground can also be made of rubber pad to increase friction and prevent slippage. The rotating shaft 42 and the rotating block 43 are interference-fitted, which facilitates fixing the relative angle between the anti-slip block 44 and the operating lever 1 after rotation, facilitating contact between one side of the side plate 41 and the ground.

[0027] Furthermore, the opening device includes a pry head assembly 5 located at one end of the operating lever 1 near the anti-slip mechanism 4. The pry head assembly 5 is used to insert into the manhole cover hole to pry it up. The pry head assembly 5 includes a sleeve 51 fixedly sleeved on the outer ring of the handle 11. Two sets of symmetrically arranged mounting cylinders 52 are fixedly connected to the side of the sleeve 51. The sleeve 51 and the mounting cylinders 52 are fixed to the handle 11. A pry bar 53 is threadedly connected to each of the two sets of mounting cylinders 52. The threaded connection of the pry bar 53 facilitates disassembly and assembly. By inserting the pry bar 53 into the manhole cover hole, the manhole cover can also be pried up.

[0028] The working principle of this embodiment is as follows: When the manhole cover hole is blocked by debris, the cleaning mechanism 2 is used to clear the blockage. The operator holds the anti-slip sleeve 28 on the outer ring of the rotating cylinder 21 and rotates it. Since the rotating cylinder 21 is threadedly connected to the threaded rod 12, during the rotation, the rotating cylinder 21 will move towards the fixed cylinder 14 along the length direction of the threaded rod 12. At this time, the rotating cylinder 21 drives the connecting cylinder 24 to move synchronously through the cooperation of the first sliding groove 22 and the first rotating ring 23. The sliding ring 25 on the inner wall of the connecting cylinder 24 is sleeved on the outer ring of the two sets of connecting rods 13 and slides with it. The limiting rod 26 in the sliding ring 25 is slidably connected between the two sets of connecting rods 13, which can prevent the connecting cylinder 24 from rotating with the rotating cylinder 21 and only achieve axial movement. When the limiting rod 26 moves, it drives the cleaning rod 27 to extend synchronously outward of the fixed cylinder 14 until the conical tip of the cleaning rod 27 extends out of the fixed cylinder 14. The tip is then inserted into the manhole cover hole to clear the debris. After cleaning is completed, rotating the rotating cylinder 21 in the opposite direction will cause the cleaning rod 27 to retract into the fixed cylinder 14, thus avoiding accidental injury from the sharp point.

[0029] The operator then rotates the adjusting sleeve 31 on the rough surface of the handle 11. Because the adjusting sleeve 31 is threadedly connected to the handle 11, it adjusts its position along its length to accommodate the distance between the manhole and the edge of different manhole cover models. Subsequently, through the rotational engagement of the second sliding groove 32 and the second rotating ring 33, the hook 34 is rotated to a downward position and aligned with the manhole cover hole. The hook 34 is then inserted into the manhole cover hole to hook the manhole cover, completing the connection and fixation between the device and the manhole cover.

[0030] Before prying the manhole cover, the anti-slip block 44 on one side of the rotating block 43 is rotated to the angle of contact with the ground by the rotation of the side plate 41 and the rotating shaft 42. Due to the interference fit between the rotating shaft 42 and the rotating block 43, the adjusted anti-slip block 44 can maintain a fixed relative angle with the operating rod 1. The rough surface or rubber pad of the anti-slip block 44 in contact with the ground increases the friction with the ground and effectively prevents slippage. At this time, the operator holds the handle 11 of the operating rod 1, using the anti-slip block 44 of the anti-slip mechanism 4 as a support point, and uses the lever principle to deflect the operating rod 1, which drives the manhole cover to tilt upward through the hook 34. At the same time, the operator can also insert the pry bar 53 connected to the internal thread of the installation cylinder 52 into the manhole cover hole to lift the manhole cover.

[0031] The above specific embodiments are merely optional embodiments of the multifunctional manhole cover opening device of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A multifunctional manhole cover opening device, characterized in that, include: An operating lever (1) is provided with a cleaning mechanism (2), which has a pointed tip for unblocking the well cover hole; The connecting assembly (3) is installed on the operating rod (1) and is used to extend into the well cover hole to form a reliable connection; An anti-slip mechanism (4) is located at the end of the operating lever (1) away from the cleaning mechanism (2). The anti-slip mechanism (4) contacts the ground and prevents slipping. A pry head assembly (5) is provided at one end of the operating lever (1) near the anti-slip mechanism (4). The pry head assembly (5) is used to extend into the well cover hole to pry it up.

2. The multifunctional manhole cover opening device according to claim 1, characterized in that, The operating lever (1) includes a grip (11), one end of which is fixedly connected to a threaded rod (12), and the end of the threaded rod (12) away from the grip (11) is fixedly connected to two sets of connecting rods (13). The two sets of connecting rods (13) are symmetrically arranged, and the ends of the two sets of connecting rods (13) away from the threaded rod (12) are jointly fixedly connected to a fixed cylinder (14).

3. The multifunctional manhole cover opening device according to claim 2, characterized in that, The cleaning mechanism (2) includes a rotating cylinder (21) threadedly connected to a threaded rod (12). The outer ring of the rotating cylinder (21) is provided with a first sliding groove (22). The outer ring of the first sliding groove (22) is fixedly connected with a first rotating ring (23). The outer ring of the first rotating ring (23) is fitted with a connecting cylinder (24). The inner wall of the connecting cylinder (24) is fitted with a sliding ring (25). The sliding ring (25) is fitted on the outer ring of the two sets of connecting rods (13) and slides with them.

4. A multifunctional manhole cover opening device according to claim 3, characterized in that, A limiting rod (26) is fixedly connected in the sliding ring (25), and the limiting rod (26) is slidably connected between two sets of connecting rods (13).

5. A multifunctional manhole cover opening device according to claim 4, characterized in that, The limiting rod (26) is fixedly connected to a cleaning rod (27) on the side away from the rotating cylinder (21). The cleaning rod (27) is slidably connected in the fixed cylinder (14). The end of the cleaning rod (27) away from the rotating cylinder (21) is conical.

6. A multifunctional manhole cover opening device according to claim 3, characterized in that, The outer ring of the rotating cylinder (21) is fixedly fitted with an anti-slip sleeve (28).

7. A multifunctional manhole cover opening device according to claim 1, characterized in that, The connecting assembly (3) includes an adjusting sleeve (31) threaded onto the handle (11), a second sliding groove (32) is provided on the adjusting sleeve (31), a second rotating ring (33) is rotatably connected in the second sliding groove (32), and a hook (34) is fixedly connected to the outside of the second rotating ring (33).

8. A multifunctional manhole cover opening device according to claim 1, characterized in that, The anti-slip mechanism (4) includes two sets of side plates (41) fixedly connected to the end of the grip (11) away from the threaded rod (12). A rotating shaft (42) is fixedly connected between the two sets of side plates (41). A rotating block (43) is rotatably connected on the rotating shaft (42). An anti-slip block (44) is fixedly connected to one side of the rotating block (43).

9. A multifunctional manhole cover opening device according to claim 8, characterized in that, The rotating shaft (42) and the rotating block (43) are interference-fitted.

10. A multifunctional manhole cover opening device according to claim 1, characterized in that, The pry bar assembly (5) includes a sleeve (51) fixedly sleeved on the outer ring of the grip (11). Two sets of symmetrically arranged mounting cylinders (52) are fixedly connected to the side of the sleeve (51), and pry bars (53) are threadedly connected to both sets of mounting cylinders (52).

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