Portable self-adaptive high-voltage cable heavy well lid opening device

Abstract

The invention discloses a portable self-adaptive high-voltage cable heavy well lid opening device, and relates to the technical field of cable working well operation, the portable self-adaptive high-voltage cable heavy well lid opening device comprises a frame supporting mechanism, cover hook mechanisms are symmetrically arranged on the frame supporting mechanism, supporting mechanisms are arranged at the two ends of the frame supporting mechanism, and a pulley mechanism and a fixing mechanism are arranged at the bottom of each supporting mechanism. The main supporting function is provided through the cross beam frame, the connecting sleeve and the supporting mechanisms are connected, the height can be adjusted, connecting supporting is formed between the two supporting mechanisms, the erecting and hoisting position is provided for the cover hook mechanism, the adjusting bolt is installed on the cross beam frame, and the bottom of the adjusting bolt is connected with the cover hook. When the well lid needs to be opened, the lid hooks penetrate through the two holes in the well lid, adjustment is carried out by rotating the adjusting bolts, the lid hooks are tightly hung on the inner sides of the holes, and follow-up well lid lifting auxiliary operation can be conveniently carried out. Wherein the size of the manhole cover opening hook is adjustable and corresponds to manhole cover holes with different sizes.

Description

Technical Field

[0001] This invention relates to the field of cable well operation technology, specifically a portable adaptive high-voltage cable heavy-duty well cover opening device. Background Technology

[0002] High-voltage cable lines are the main arteries of urban power supply, and their safe and reliable operation is an important foundation for ensuring electricity supply for people's livelihoods. Cable joints are a critical weak link in high-voltage cable lines. In the Nanchang area, high-voltage cable lines are mainly laid in ducts, and special maintenance and operation manholes are usually set up at cable joints. These high-voltage cable manholes are usually covered with heavy-duty manhole covers.

[0003] In the prior art, such as the patent application CN202010996422.4 entitled "A Special Tool for Opening Cable Manhole Covers," the invention consists of an operating component and a supporting component. The operating component mainly consists of a long handle, a short handle, and an auxiliary spring assembly. The supporting component mainly consists of three transverse support arms and three lateral support arms, forming a triangular pyramid shape. The operating component and the supporting component are connected by two concentric rods. In its natural state, the transverse and lateral support arms of the supporting component are retracted to pass through the holes in the cable manhole cover. By operating the long and short handles, the transverse and lateral support arms are opened, pressing against the inside of the cable manhole cover, thereby lifting the cover. The beneficial effects of this invention are: by using this special tool for opening cable manhole covers, cable manhole covers can be opened conveniently and efficiently without damaging them, and the safety risks to personnel are greatly reduced.

[0004] Existing construction equipment makes it difficult to open heavy manhole covers, and the average time required to open a heavy manhole cover is long, which increases the time for live detection of cable line joints in the manhole and reduces operational efficiency. To address these issues, a portable adaptive high-voltage cable heavy manhole cover opening device is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a portable adaptive high-voltage cable heavy-duty manhole cover opening device to solve the problems mentioned in the background art, such as the difficulty of opening heavy-duty manhole covers by construction equipment, the long average time required to open a heavy-duty manhole cover, which increases the time for live detection in cable line joint wells and reduces operational efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable adaptive high-voltage cable heavy-duty manhole cover opening device, comprising a support mechanism, on which cover hook mechanisms are symmetrically arranged, and at both ends of the support mechanism are support mechanisms, and at the bottom of the support mechanisms are pulley mechanisms and fixing mechanisms, respectively. The support mechanism includes a crossbeam frame, and at both ends of the crossbeam frame are connecting sleeves. The cover hook mechanism includes an adjusting bolt, which is movably installed through the inner side of the crossbeam frame. At the bottom of the adjusting bolt is a cover hook, which is engaged with the corresponding hole of the manhole cover for hanging and opening the manhole cover. The pulley mechanism includes a pulley frame with pulleys movably mounted at both ends of the pulley frame for lifting the manhole cover and shifting it to one side. The fixing mechanism includes a fixing seat for supporting the manhole cover.

[0007] Preferably, the support mechanism includes a threaded adjusting rod, and a rotating crossbeam is provided on the top of the threaded adjusting rod.

[0008] Preferably, one end of the rotating crossarm is provided with a force-enhancing handle, and a screw is connected through the middle of the rotating crossarm.

[0009] Preferably, a guide frame is fixedly installed on one side of the top of the pulley frame, and the guide frame is slidably connected to one of the connecting sleeves.

[0010] Preferably, a guide groove is provided through the side of the guide frame, and the guide groove is connected to one of the connecting sleeves.

[0011] Preferably, the top of the fixing seat is provided with a mating sleeve, which is connected to one of the threaded adjusting rods.

[0012] Preferably, the crossbeam frame has symmetrical sliding slots running through it, and the adjusting bolt is movably installed inside the sliding slot.

[0013] Preferably, a positioning cap is provided on the outer side of the adjusting bolt, and the positioning cap is slidably connected to the sliding groove.

[0014] Preferably, the outer wall of the adjusting bolt is provided with an adjusting element.

[0015] Preferably, a carrying mechanism is fixedly installed on the top of the support mechanism. The carrying mechanism includes a mounting rod, the bottom of which is fixedly connected to the top of the crossbeam frame, and a handle is fixedly installed on the top of the mounting rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, a crossbeam frame provides the main support, and a connecting sleeve is formed between the crossbeam and the support mechanism, allowing for height adjustment. This forms a connecting frame between the two support mechanisms and provides a position for the cover hook mechanism to be erected and hoisted. An adjusting bolt is installed on the crossbeam frame, and a cover hook is connected to the bottom of the adjusting bolt. When it is necessary to open the manhole cover, the cover hook is passed through the two holes on the manhole cover, and the adjusting bolt is rotated to adjust the hook, tightly securing it inside the holes for subsequent manhole cover lifting assistance. The size of the manhole cover opening hook is adjustable to correspond to different sizes of manhole cover holes.

[0017] 2. In this invention, a threaded adjusting rod is threadedly connected to a connecting sleeve, and a rotating crossbeam is provided at the top. A force-enhancing handle is installed on the rotating crossbeam. The force-enhancing handle is used for connection and support, thus facilitating effective support erection. Simultaneously, manually rotating the force-enhancing handle allows the rotating crossbeam to rotate synchronously, enabling rapid adjustment of the crossbeam height. This facilitates the lifting of the manhole cover in conjunction with the cover hook mechanism, achieving rapid opening of the manhole cover and improving operational efficiency. The length of the rod at one end of the rotating crossbeam can be easily adjusted by tightening or loosening the screws, allowing for torque adjustment according to different force requirements in the operating environment.

[0018] 3. In this invention, a pulley frame is mounted at the bottom of one of the support mechanisms. Pulleys are connected to both ends of the pulley frame via rotating shafts, facilitating flexible rotation and adjustment. This allows the manhole cover to be moved to one side after being lifted, improving operational efficiency and ensuring safety during construction. A guide frame is provided at the top of the mounting rod, with a guide groove extending through its side. This guide frame is movably connected to one of the connecting sleeves, providing guidance during lifting and adjustment and further enhancing operational stability. Alternatively, two pulley frames can be mounted at the bottom of two threaded adjusting rods, replacing the fixed seats for even more flexible operation. A connecting sleeve connects to the bottom of another support mechanism, with a fixed seat at the bottom of the connecting sleeve. The cross-shaped design of the fixed seats provides stable support, ensuring stability during operation and effectively improving the safety of cable manhole operations. Attached Figure Description

[0019] Figure 1 This is a perspective view of a portable adaptive high-voltage cable heavy-duty manhole cover opening device according to the present invention; Figure 2 This is a side view of the portable adaptive high-voltage cable heavy-duty manhole cover opening device of the present invention.

[0020] In the picture: 1. Support mechanism; 101. Crossbeam frame; 102. Sliding groove; 103. Connecting sleeve; 2. Cover hook mechanism; 201. Adjusting bolt; 202. Positioning cap; 203. Cover hook; 204. Adjusting component; 3. Hand-carrying mechanism; 301. Mounting rod; 302. Handle; 4. Support mechanism; 401. Threaded adjusting rod; 402. Rotating crossbeam; 403. Force-increasing handle; 5. Pulley mechanism; 501. Pulley frame; 502. Pulley; 503. Guide frame; 504. Guide groove; 6. Fixing mechanism; 601. Connecting sleeve; 602. Fixing seat. Detailed Implementation

[0021] 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.

[0022] Example 1: As Figures 1-2 As shown, the present invention provides a technical solution: a portable adaptive high-voltage cable heavy-duty manhole cover opening device, including a support mechanism 1, a cover hook mechanism 2 symmetrically arranged on the support mechanism 1, a support mechanism 4 at both ends of the support mechanism 1, a pulley mechanism 5 and a fixing mechanism 6 respectively arranged at the bottom of the support mechanism 4, the support mechanism 1 including a crossbeam frame 101, a connecting sleeve 103 at both ends of the crossbeam frame 101, the cover hook mechanism 2 including an adjusting bolt 201, the adjusting bolt 201 being movably installed through the inner side of the crossbeam frame 101, and a cover hook 203 arranged at the bottom of the adjusting bolt 201, the cover hook 203 being connected to the corresponding hole position of the manhole cover for hanging and opening the manhole cover; The pulley mechanism 5 includes a pulley frame 501, with pulleys 502 movably mounted at both ends of the pulley frame 501 for lifting the manhole cover and shifting it to one side. The fixing mechanism 6 includes a fixing seat 602 for supporting the manhole cover. A guide frame 503 is fixedly mounted on one side of the top of the pulley frame 501. The guide frame 503 is slidably connected to one of the connecting sleeves 103. A guide groove 504 is provided through the side of the guide frame 503. The guide groove 504 is connected to one of the connecting sleeves 103. A mating sleeve 601 is provided on the top of the fixing seat 602. The mating sleeve 601 is connected to one of the threaded adjusting rods 401.

[0023] In this embodiment, the crossbeam frame 101, as the core load-bearing component of the device, bears the main supporting role of the overall structure, providing a stable and reliable support foundation for the installation and operation of subsequent functional components. The connecting sleeve 103 and the support mechanism 4 adopt a detachable movable connection structure. After assembly, the support height can be flexibly adjusted by adjusting the components to adapt to wellhead operation scenarios of different depths. Simultaneously, the two symmetrically arranged support mechanisms 4 form a stable connecting support system through the crossbeam frame 101, effectively dispersing the load generated during the lifting of the well cover and avoiding structural deformation caused by excessive local stress. Furthermore, the crossbeam frame 101 also has a dedicated hoisting point reserved for the cover hook mechanism 2, ensuring that the cover hook mechanism 2 can be accurately positioned and stably installed. The adjusting bolt 201 is installed through the preset mounting hole of the crossbeam frame 101, and its bottom is rigidly connected to the cover hook 203, ensuring that the two will not undergo relative displacement during stress. In scenarios requiring the opening of manhole covers, operators can first align the hook 203 with and pass it through the two pre-set through holes on the manhole cover. Then, by rotating the adjusting bolt 201, the hook 203 is positioned so that its hook body fits tightly against and is hooked onto the inner edge of the manhole cover hole, forming a secure hook-and-hook connection structure. This provides a reliable support point for subsequent manhole cover lifting operations. The manhole cover opening hook in this device features an adjustable design, allowing for flexible adjustment of the hook's size according to actual operational needs. This adapts to manhole cover holes of different diameters, significantly improving the device's versatility and applicability, and effectively solving the problem of traditional fixed-size hooks being unable to fit various manhole covers.

[0024] The pulley frame 501 is fixedly mounted on the bottom end face of one of the support mechanisms 4. Both ends of the pulley frame 501 are connected to the pulley 502 via rotating shafts. The rotating shafts and pulleys 502 are assembled with a clearance fit, which can effectively reduce the frictional resistance during rotation, thereby enabling the pulley 502 to achieve flexible and smooth rotation adjustment. In the manhole cover lifting operation, after the manhole cover is successfully lifted to the preset height, the operator can easily move the manhole cover to the designated area on one side of the manhole opening by means of the rolling action of the pulley 502. There is no need to use additional large handling equipment, which significantly improves the overall efficiency of manhole cover handling operations and avoids safety hazards such as bumps and slippage caused by manual handling of manhole covers, effectively ensuring the safety of personnel and equipment during construction operations. The top end face of the mounting rod 301 is integrally formed with a guide frame 503. A guide groove 504 is vertically oriented through the side end face of the guide frame 503. The width of the guide groove 504 matches the outer dimensions of the connecting sleeve 103. By embedding the connecting sleeve 103 into the guide groove 504, a sliding connection structure is formed. During the lifting and lowering adjustment of the device, the guide groove 504 provides precise limiting and guiding for the movement trajectory of the connecting sleeve 103, effectively preventing instability such as offset or swaying during lifting and lowering, thereby further improving the overall stability and accuracy of operation. Alternatively, the device can use two pulley frames 501, which are respectively mounted at the bottom of the two threaded adjusting rods 401, replacing the original fixed seat 602. This assembly method allows for greater flexibility in movement and positioning, better adapting to complex working conditions in different work sites and further expanding the device's applicable scenarios.

[0025] The connecting sleeve 601 is rigidly connected to the bottom end of another support mechanism 4, ensuring that it will not loosen or fall off during the lifting load of the manhole cover. A fixing seat 602 is integrally formed on the bottom end face of the connecting sleeve 601. This fixing seat 602 adopts a cross-shaped structural design, and its cross-shaped support arms can significantly increase the contact area with the ground, dispersing the vertical pressure transmitted by the support mechanism 4, thereby providing a stable and reliable support foundation for the entire device. The cross-shaped fixing seat 602 can firmly adhere to the ground around the manhole opening, effectively avoiding the risk of the device tipping or tilting due to uneven force during manhole cover lifting. This ensures the structural stability during the opening and handling of the manhole cover, significantly improving the overall safety of cable manhole construction operations and providing strong protection for the personal safety of operators.

[0026] Example 2: As Figures 1-2As shown, the support mechanism 4 includes a threaded adjusting rod 401, a rotating crossbeam 402 is provided at the top of the threaded adjusting rod 401, a force-increasing handle 403 is provided at one end of the rotating crossbeam 402, and a screw is connected through the middle of the rotating crossbeam 402.

[0027] In this embodiment, a threaded adjusting rod 401 is threadedly connected to the connecting sleeve 103, and a rotating crossbeam 402 is provided at the top. A force-enhancing handle 403 is provided on the rotating crossbeam 402. The force-enhancing handle 403 is used for connection and support, which facilitates effective support erection. Simultaneously, manually rotating the force-enhancing handle 403 causes the rotating crossbeam 402 to rotate synchronously, thus facilitating rapid adjustment of the height of the crossbeam frame 101. This is beneficial for cooperating with the cover hook mechanism 2 to lift the manhole cover, enabling rapid opening of the manhole cover and improving operational efficiency. The length of the rod at one end of the rotating crossbeam 402 can be easily adjusted by tightening or loosening the screws, allowing for torque adjustment according to different usage environment requirements.

[0028] Example 3: As Figures 1-2 As shown, a sliding slot 102 is symmetrically opened through the crossbeam frame 101. An adjusting bolt 201 is movably installed on the inner side of the sliding slot 102. A positioning cap 202 is provided on the outer side of the adjusting bolt 201. The positioning cap 202 is slidably connected to the sliding slot 102. An adjusting element 204 is provided on the outer wall of the adjusting bolt 201. A carrying mechanism 3 is fixedly installed on the top of the support mechanism 1. The carrying mechanism 3 includes a mounting rod 301. The bottom of the mounting rod 301 is fixedly connected to the top of the crossbeam frame 101. A handle 302 is fixedly installed on the top of the mounting rod 301.

[0029] In this embodiment, the sliding slot 102, formed on the crossbeam frame 101, provides space for adjusting the position of the adjusting bolt 201, facilitating lifting operations for manhole covers of different diameters, thus expanding its applicability and ensuring operational efficiency. The positioning cap 202 provides positioning support for the adjusting bolt 201, ensuring that it can be flexibly adjusted while maintaining its height during installation, improving its usability. The adjusting element 204, located on the outer wall of the adjusting bolt 201, facilitates adjustment assistance, enhancing operational convenience.

[0030] The mounting rod 301 provides support for the erection, and its bottom is fixedly installed at the top middle section of the crossbeam frame 101. The top is also fixedly connected to the handle 302, which makes it easy to lift the object by hand during movement, thus achieving flexible position adjustment and improving the convenience of operation.

[0031] In this invention, the portable adaptive high-voltage cable heavy-duty manhole cover opening device, when in use, firstly, the crossbeam frame 101 provides the main support function. The connecting sleeve 103 connects with the support mechanism 4 and can be height-adjusted, forming a connecting frame between the two support mechanisms 4 and providing a position for the cover hook mechanism 2 to be erected and hoisted. The adjusting bolt 201 is installed on the crossbeam frame 101, and the bottom of the adjusting bolt 201 is connected to the cover hook 203. When it is necessary to open the manhole cover, the cover hook 203 is passed through the two holes on the manhole cover, and the adjusting bolt 201 is rotated to adjust it, tightly hooking the cover hook 203 inside the hole, facilitating subsequent manhole cover lifting assistance operations. The size of the manhole cover opening hook is adjustable to correspond to different sizes of manhole cover holes. A sliding slot 102 is opened on the crossbeam frame 101, providing space for adjusting the position of the adjusting bolt 201, which is beneficial for lifting manhole covers of different diameters, increasing the applicability and ensuring operational efficiency. The positioning cap 202 provides positioning support for the adjusting bolt 201, ensuring that the adjusting bolt 201 can be flexibly adjusted while maintaining its height position during installation, thus improving the usability. The adjusting element 204, located on the outer wall of the adjusting bolt 201, facilitates adjustment and enhances operational convenience. The mounting rod 301 provides support for the frame, with its bottom fixedly installed at the top middle section of the crossbeam frame 101, and its top fixedly connected to the handle 302, allowing for easy lifting during movement and enabling flexible position adjustment, further improving operational convenience. The threaded adjusting rod 401 is threadedly connected to the connecting sleeve 103, and a rotating crossbeam 402 is provided at the top. A force-enhancing handle 403 is installed on the rotating crossbeam 402. The force-enhancing handle 403 is used for connection and support, facilitating effective support erection. Manually rotating the force-enhancing handle 403 causes the rotating crossbeam 402 to rotate synchronously, allowing for quick adjustment of the height of the crossbeam frame 101. This facilitates lifting the manhole cover in conjunction with the cover hook mechanism 2, enabling rapid opening of the manhole cover and improving operational efficiency. The length of the rod at one end of the rotating crossbeam 402 can be easily adjusted by tightening or loosening screws, allowing for torque adjustment according to different usage environment requirements. A pulley frame 501 is located at the bottom of one of the support mechanisms 4, with pulleys 502 connected to both ends of the pulley frame 501 via rotating shafts. This facilitates flexible rotation adjustment, allowing the manhole cover to be moved to one side after being lifted, improving operational efficiency and ensuring construction safety. By providing a guide frame 503 at the top of the mounting rod 301 and a guide groove 504 extending through the side of the guide frame 503, and making it movably connected to one of the connecting sleeves 103, it is beneficial to provide guidance during the lifting and adjustment process, and to further improve the stability of operation.Alternatively, two pulley brackets 501 can be respectively mounted on the bottom of the two threaded adjusting rods 401, replacing the fixed seat 602, thus achieving more flexible operation. A connecting sleeve 601 is used to connect to the bottom of another support mechanism 4, and a fixed seat 602 is provided at the bottom of the connecting sleeve 601. The cross-shaped design of the fixed seat 602 provides stable support for the erection, ensuring stability during operation and effectively improving the safety of cable well operations.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable self-adapting high-voltage cable heavy well lid opening device comprising a bracing mechanism (1), characterized in that: The cover hook mechanism (2) is symmetrically arranged on the frame supporting mechanism (1), both ends of the frame supporting mechanism (1) are provided with supporting mechanisms (4), the bottom of each supporting mechanism (4) is provided with a pulley mechanism (5) and a fixing mechanism (6), the frame supporting mechanism (1) comprises a cross beam frame (101), both ends of the cross beam frame (101) are provided with connecting sleeves (103), the cover hook mechanism (2) comprises an adjusting bolt (201), the adjusting bolt (201) is movably penetrated and mounted on the inner side of the cross beam frame (101), the bottom of the adjusting bolt (201) is provided with a cover hook (203), the cover hook (203) is butted in the corresponding hole position of the manhole cover, and the manhole cover is hung and opened; The pulley mechanism (5) comprises a pulley frame (501), pulleys (502) are movably mounted at both ends of the pulley frame (501), and the manhole cover is offset to one side after being lifted, and the fixing mechanism (6) comprises a fixing seat (602) for erecting and supporting.

2. The portable self-adapting high-voltage cable heavy well lid opening device according to claim 1, characterized in that: The supporting mechanism (4) comprises a threaded adjusting rod (401), and the top of the threaded adjusting rod (401) is provided with a rotating cross arm (402).

3. The portable, self-adapting, high-voltage cable heavy well lid opening device according to claim 2, characterized in that: One end of the rotating cross arm (402) is provided with a force amplification handle (403), and the rotating cross arm (402) is connected with a screw.

4. The portable, self-adapting, high-voltage cable heavy well lid opening device according to claim 1, characterized in that: The top side of the pulley frame (501) is fixedly provided with a guide frame (503), and the guide frame (503) is slidably connected with one of the connecting sleeves (103).

5. The portable, self-adapting, high-voltage cable heavy well lid opening device according to claim 4, characterized in that: The side of the guide frame (503) is provided with a guide groove (504), and the guide groove (504) is connected with one of the connecting sleeves (103).

6. The portable, self-adapting, high-voltage cable heavy well lid opening device according to claim 2, characterized in that: The top of the fixing seat (602) is provided with a butt joint sleeve (601), and the butt joint sleeve (601) is connected with one of the threaded adjusting rods (401).

7. The portable, self-adapting, high-voltage cable heavy well lid opening device according to claim 1, characterized in that: Symmetrical sliding grooves (102) are formed in the cross beam frame (101), and the adjusting bolt (201) is movably mounted in the inner side of the sliding groove (102).

8. The portable, self-adapting, high-voltage cable heavy well lid opening device according to claim 1, characterized in that: The outer side of the adjusting bolt (201) is provided with a positioning cap (202), and the positioning cap (202) is slidably connected on the sliding groove (102).

9. The portable, self-adapting, high-voltage cable heavy well lid opening device according to claim 8, characterized in that: An adjusting piece (204) is arranged on the outer wall of the adjusting bolt (201).

10. The portable, self-adapting, high-voltage cable heavy well lid opening device according to claim 1, characterized in that: The top of the frame supporting mechanism (1) is fixedly provided with a hand carrying mechanism (3), the hand carrying mechanism (3) comprises an installation rod (301), the bottom of the installation rod (301) is fixedly connected to the top of the cross beam frame (101), and the top of the installation rod (301) is fixedly provided with a handle (302).

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