Heavy cable trench cover plate opening and closing tool

Abstract

The invention discloses a heavy cable trench cover plate opening and closing tool, and relates to the technical field of power construction, the heavy cable trench cover plate opening and closing tool comprises a frame and a hoisting mechanism located on the frame, and the frame is provided with a telescopic bracket; the hoisting mechanism comprises a hoisting beam and a supporting beam, one end of the supporting beam is connected with the upper portion of the frame, the other end of the supporting beam is connected with the hoisting beam, and hoisting pulleys are installed at the two ends of the hoisting beam respectively; a winch is fixed to the supporting beam, the output end of the winch is connected with a lifting rope, the lifting rope is wound around the two lifting pulleys on the lifting beam and then connected with a special clamp used for fixing the cable trench cover plate, and after the cable trench cover plate is grabbed by the special clamp, the bracket can stretch out and be supported below the cable trench cover plate. The cable trench cover plate opening and closing device solves the technical problems of high labor intensity and high labor cost in the cable trench cover plate opening and closing process in the prior art, and reduces the hidden danger of pipeline damage.

Description

Technical Field

[0001] The invention relates to the technical field of concrete cover plate construction, in particular to a heavy-duty cable trench cover plate opening and closing tool. Background Art

[0002] In a substation, since some pipelines need to be routed underground, a cable trench is built. To ensure the safety of personnel and equipment, a cover plate needs to be laid above the cable trench. The cable trench cover plates are usually heavy and are laid in large quantities.

[0003] In the current production process, for the construction of cable trenches or subsequent maintenance operations, workers usually need to manually open and move the cover of the cable trench. Specifically, when manually opening the cable trench cover, it is often necessary to use a crowbar to apply force to lift it. Especially when doing this work in a small space, manual collaboration is inconvenient, which will also lead to a significant increase in labor intensity and labor costs. In addition, during the manual operation of opening the cover, if the force is unevenly distributed, the cover may fall into the trench, causing damage to the pipelines already laid in the trench, and then causing greater impact and losses.

[0004] Therefore, the above-mentioned prior art has at least the following defects: since manual operation is required during the opening and closing of the cable trench cover, the labor intensity is high, the labor cost is high, and there is a risk of pipeline damage. Summary of the invention

[0005] The embodiment of the present application provides a heavy-duty cable trench cover opening and closing tool to solve the technical problems of high labor intensity and labor cost in the process of opening and closing the cable trench cover in the prior art, while reducing the risk of cable damage.

[0006] In order to solve the above technical problems, the present invention adopts the following technical scheme: a heavy-duty cable trench cover opening and closing tool, comprising a frame and a lifting mechanism located on the frame, wherein a retractable bracket is installed on the frame; the lifting mechanism comprises a lifting beam and a supporting beam, wherein one end of the supporting beam is connected to the top of the frame, and the other end of the supporting beam is connected to the lifting beam, and lifting pulleys are respectively installed at both ends of the lifting beam; a winch is fixed on the supporting beam, and a lifting rope is connected to the output end of the winch, and the lifting rope is connected to a special clamp for fixing the cable trench cover after passing through the two lifting pulleys on the lifting beam, and when the special clamp clamps and lifts the cable trench cover, the bracket can extend out and be supported under the cable trench cover.

[0007] When the cable trench cover is opened and closed with the help of this device, the cable trench cover can be lifted up by means of a lifting mechanism and a special clamp. Since a retractable bracket is installed on the frame, when the cable trench cover is lifted up, the bracket extends out and can be supported under the cable trench cover, thereby saving labor costs and reducing safety hazards.

[0008] Furthermore, the frame has a horizontally arranged telescopic cylinder A, one end of the telescopic cylinder A is fixed to the frame, and the other end of the telescopic cylinder A is fixed to the bracket; when the telescopic cylinder A is extended, the bracket can be extended relative to the frame to support the cable trench cover; when the telescopic cylinder A is retracted, the bracket is located above the frame, so the extension and retraction of the bracket can be controlled by the telescopic cylinder A, thereby achieving the support or retraction of the cable trench cover.

[0009] Furthermore, the lifting beam includes a connecting section and a telescopic section, wherein the connecting section is connected to the supporting beam, the telescopic section is slidably installed in the connecting section, and the telescopic section and the connecting section can be fixed by a latch; thereby, the length of the lifting beam can be adjusted, thereby improving the flexibility of the lifting mechanism.

[0010] Furthermore, a fixing seat for installing the support beam is provided above the frame, the front side of the lower end of the support beam is hinged to the upper end of the fixing seat, and the rear side of the lower end of the support beam is fixed to the upper end of the fixing seat by a pin; the upper end of the support beam is hinged to the connecting section of the lifting beam, and is supported and fixed by a telescopic cylinder B; therefore, after the transportation is completed, the telescopic cylinder B is contracted to allow the lifting beam to rotate relative to the support beam, and then the pin at the connection between the support beam and the fixing seat is removed to enable the equipment to be folded, thereby facilitating overall movement.

[0011] Furthermore, the special clamp includes a slide rail and a drive motor installed above the slide rail, the output end of the drive motor is connected to a rotating shaft through a belt or a gear, and screws with opposite rotation directions are installed at both ends of the rotating shaft, and the screws are located in the slide rail; each screw is installed with a nut, and a grab plate that can be engaged with the edge of the cable trench cover is fixed under the nut; thereby, the grab plate can be moved in a direction close to or away from each other under the drive of the drive motor, thereby achieving the grabbing and releasing of the cable trench cover.

[0012] Furthermore, two special clamps are provided, and the two special clamps are connected via two transversely arranged guide rods.

[0013] Furthermore, sleeves are fixed at both ends of the special clamp, and the sleeves are nested in the outer circumference of the guide rod; thereby, the special clamp can be easily adapted to cable trench covers of different specifications.

[0014] Furthermore, a push-pull handrail is installed on the rear side of the frame, and a controller is installed on the push-pull handrail to realize the extension and retraction of the bracket and the unfolding and folding of the lifting beam.

[0015] It can be seen from the above technical solutions that the present invention has at least the following technical effects or advantages: When the cable trench cover is opened and closed with the help of this device, the cable trench cover can be lifted up by the lifting mechanism and the special clamp. Since a retractable bracket is installed on the frame, when the cable trench cover is lifted up, the bracket extends out and can be supported under the cable trench cover, thereby reducing physical labor intensity and labor costs and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 The structural diagram behind the hidden special fixture; Figure 3 It is a schematic diagram of the structure of the hoisting mechanism of the present invention after folding; Figure 4 It is a schematic diagram of the structure after the bracket is extended in the present invention; Figure 5 It is a structural diagram of a special fixture.

[0017] Explanation of the accompanying drawings: 1. frame, 2. bracket, 3. lifting mechanism, 4. telescopic cylinder A, 5. slide seat, 6. lifting beam, 7. support beam, 8. winch, 9. lifting rope, 10. special clamp, 11. connecting section, 12. telescopic section, 13. telescopic cylinder B, 14. fixed seat, 15. driving motor, 16. slide rail, 17. rotating shaft, 18. screw, 19. grab plate, 20. guide rod, 21. sleeve. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0019] The invention discloses a heavy-duty cable trench cover opening and closing tool, such as Figure 1As shown, it includes a frame 1, a bracket 2 installed in the frame 1, and a hoisting mechanism 3 located on the frame 1. In one example, the front end of the hoisting mechanism 3 can extend to the front of the frame 1, and when the hoisting mechanism 3 lifts the cable trench cover, the bracket 2 in the frame 1 extends out and can be supported under the cable trench cover.

[0020] like Figure 2 As shown, rollers are installed at the bottom of the frame 1 to facilitate the movement of the frame 1. A telescopic cylinder A4 is horizontally installed above the frame 1, one end of the telescopic cylinder A4 is fixed to the frame 1, and the other end of the telescopic cylinder A4 is fixed to the bracket 2, and both sides of the bracket 2 are slidably connected to the two sides above the frame 1. Specifically, both sides above the frame 1 are fixed with slide seats 5 extending along the front-to-back direction thereof, and the interior of the slide seats 5 has a cavity that matches the bracket 2. The bracket 2 is a frame-type structure, and both sides of the bracket 2 have slide bars, which are located in the slide seats 5. Therefore, when the telescopic cylinder A4 is extended, the bracket 2 can be extended relative to the frame 1 to facilitate supporting the cable trench cover.

[0021] In other embodiments, a group of square sleeves are respectively provided on both sides of the frame 1, the front half of the square sleeve is a groove-shaped sleeve with an upper opening, an inner steel pipe is slidably installed inside the square sleeve, a support rail is welded on the inner steel pipe, and the upper part of the support rail is welded and fixed to the bottom of the bracket 2, so that when the inner steel pipe is extended relative to the sleeve, the bracket can be extended accordingly.

[0022] like Figure 3 As shown, the hoisting mechanism 3 includes a hoisting beam 6 and a support beam 7. One end of the support beam 7 is connected to the top of the frame 1, and the other end of the support beam 7 is connected to the hoisting beam 6. During the hoisting process, the support beam 7 is in a vertical support posture, the hoisting beam 6 is connected to the upper end of the support beam 7, and the front end of the hoisting beam 6 extends to the front of the frame 1, so that the hoisting mechanism 3 can lift the cable trench cover in front of the frame 1. Specifically, hoisting pulleys are respectively installed at both ends of the hoisting beam 6, a winch 8 is fixed on the support beam 7, and a hoisting rope 9 is fixed on the winch 8. The hoisting rope 9 passes around the two hoisting pulleys on the hoisting beam 6 and is connected to a special clamp 10 for fixing the cable trench cover. Therefore, when the special clamp 10 clamps the cable trench cover, the cable trench cover can be lifted by driving the winch 8.

[0023] In this embodiment, the hoisting beam 6 is a length-adjustable structure, which includes a connecting section 11 and a telescopic section 12. The connecting section 11 is connected to the support beam 7, and the telescopic section 12 is slidably installed in the connecting section 11. The connecting section 11 and the telescopic section 12 are both provided with through holes that penetrate through both sides thereof, so that when the telescopic section 12 is telescoped to a suitable position, the telescopic section 12 can be aligned with the through holes on the connecting section 11, and then fixed through a latch. It should be understood that a plurality of telescopic sections 12 can be provided, and when a plurality of telescopic sections 12 are provided, two adjacent telescopic sections 12 are also fixed through latches. In this way, the length of the hoisting beam 6 can be adjusted, and by adjusting the length of the hoisting beam 6, the hoisting mechanism 3 can have greater flexibility.

[0024] like Figure 3 , Figure 4 As shown, the connecting section 11 is in an "L"-shaped corner shape, one end of the connecting section 11 is hinged to the support beam 7, and the bottom of the connecting section 11 is connected to one side of the support beam 7 through a telescopic cylinder B13. The two ends of the telescopic cylinder B13 are respectively hinged to the bottom of the connecting section 11 and one side of the support beam 7. Therefore, when the telescopic cylinder B13 contracts, the lifting beam 6 can rotate relative to the support beam 7 to form a folded posture. In addition, a fixing seat 14 for mounting the support beam 7 and a power battery for power supply are also provided above the frame 1. The front side of the lower end of the support beam 7 is hinged to the upper end of the fixing seat 14, and the rear side of the lower end of the support beam 7 is fixed to the upper end of the fixing seat 14 by a pin. When the pin at the connection between the support beam 7 and the fixing seat 14 is removed, the support beam 7 can rotate around the fixing seat 14 and change from a vertical posture to a horizontal posture.

[0025] In this embodiment, the special fixture 10 includes a slide rail 16 and a drive motor 15 installed above the slide rail 16. Figure 1 and Figure 5 As shown, the length of the slide rail 16 is greater than the width of the cable trench cover, and the notch of the slide rail 16 faces downward. The drive motor 15 is installed in the middle position above the slide rail 16. The output end of the drive motor 15 is connected to the rotating shaft 17 through a belt or a gear. The two ends of the rotating shaft 17 are respectively installed with screws 18 with opposite rotation directions. The screws 18 are located in the notch of the slide rail 16, so that when the drive motor 15 rotates, the screws 18 at both ends of the rotating shaft 17 can be driven to rotate simultaneously. Specifically, each screw 18 is installed with a nut, and a gripping plate 19 is fixed below the nut, so that when the drive motor 15 rotates, the gripping plate 19 below the slide rail 16 can move in a direction close to or away from each other. It should be understood that the lower edge of the gripping plate 19 is provided with a flange, so that when the gripping plate 19 below the slide rail 16 moves in a direction close to each other, the cable trench cover can be clamped. Then, the lifting of the cable trench cover can be achieved by driving the lifting rope 9 by the winch 8.

[0026] It should be understood that the drive motor 15 is connected to the power battery by a spring cable to facilitate the recovery of the cable in the folded state and the small swing of the special fixture 10 during the operation. In addition, the drive motor 15 can use an aviation plug that can be quickly plugged in and out, so that after the construction is completed, the aviation plug can be unplugged more conveniently to facilitate the special fixture 10 to be directly placed and recovered on the frame 1.

[0027] like Figure 5 As shown, two special clamps 10 are provided, and the two special clamps 10 are connected by two transversely arranged guide rods 20. Specifically, sleeves 21 are fixed at both ends of the slide rail 16 of the special clamp 10, and the sleeves 21 are nested in the outer periphery of the guide rod 20, so that the distance between the two special clamps 10 can be changed by changing the relative position of the sleeves 21 on the guide rod 20, so as to realize the fixing of the special clamp 10 to the cable trench covers of different specifications.

[0028] On the other hand, a push-pull handrail is also installed on the rear side of the frame 1, and a controller is installed on the push-pull handrail. The power battery of the frame is connected to the drive motor and the controller through a spring cable. The controller has an operation panel, and the telescopic cylinder A4, telescopic cylinder B13, winch 8 and drive motor 15 can be controlled by the controller, which is convenient for the staff to operate. Among them, the telescopic cylinder A4 and telescopic cylinder B13 are both servo electric cylinders, which can facilitate the electrical control of the device. The working principle and control method of the controller are prior art, which are well known to those skilled in the art and will not be repeated here.

[0029] The operation process of the present invention is as follows: In the initial state, the telescopic cylinder A4 is in a retracted state, and the bracket 2 is located above the frame 1; the telescopic cylinder B13 is in an extended state, and the lifting beam 6 extends toward the front of the frame 1. When it is necessary to carry the cable trench cover, the telescopic section 12 of the lifting beam 6 can be adjusted to extend to a certain length, and then the cable trench cover can be picked up by using a special clamp 10, and the bracket 2 is extended and supported under the cable trench cover. Finally, the bracket 2 is retracted to the top of the frame, and then the trailer can be moved.

[0030] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in their embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novelties disclosed herein.

Claims

1. A heavy-duty cable trench cover opening and closing tool, comprising a frame (1) and a lifting mechanism (3) located on the frame (1), characterized in that: A retractable bracket (2) is mounted on the vehicle frame (1); the hoisting mechanism (3) comprises a hoisting beam (6) and a support beam (7), wherein one end of the support beam (7) is connected to the top of the vehicle frame (1), and the other end of the support beam (7) is connected to the hoisting beam (6); and hoisting pulleys are mounted on both ends of the hoisting beam (6); a winch (8) is fixed to the support beam (7), and a hoisting rope (9) is connected to the output end of the winch (8); and the hoisting rope (9) is connected to a special clamp (10) for fixing a cable trench cover after passing over two hoisting pulleys on the hoisting beam (6); when the special clamp (10) grabs the cable trench cover, the bracket (2) can be extended and supported below the cable trench cover.

2. A heavy-duty cable trench cover opening and closing tool according to claim 1, characterized in that: The frame (1) is provided with a telescopic cylinder A (4) arranged horizontally, one end of the telescopic cylinder A (4) is fixed to the frame (1), and the other end of the telescopic cylinder A (4) is fixed to the bracket (2).

3. A heavy-duty cable trench cover opening and closing tool according to claim 1, characterized in that: The hoisting beam (6) comprises a connecting section (11) and a telescopic section (12); the connecting section (11) is connected to the supporting beam (7); the telescopic section (12) is slidably mounted in the connecting section (11); and the telescopic section (12) and the connecting section (11) can be fixed by a latch.

4. A heavy-duty cable trench cover opening and closing tool according to claim 3, characterized in that: A fixing seat (14) for mounting a support beam (7) is provided above the vehicle frame (1); the front side of the lower end of the support beam (7) is hinged to the upper end of the fixing seat (14); the rear side of the lower end of the support beam (7) is fixed to the upper end of the fixing seat (14) via a latch; the upper end of the support beam (7) is hinged to the connecting section (11) of the hoisting beam (6), and is supported and fixed via a telescopic cylinder B (13).

5. A heavy-duty cable trench cover opening and closing tool according to any one of claims 1 to 4, characterized in that: The special fixture (10) comprises a slide rail (16) and a drive motor (15) mounted above the slide rail (16); the output end of the drive motor (15) is connected to a rotating shaft (17) via a belt or a gear; screws (18) with opposite rotation directions are mounted at both ends of the rotating shaft (17); the screws (18) are located in the slide rail (16); a nut is mounted on each screw (18); a gripping plate (19) is fixed below the nut for engaging with the edge of the cable trench cover.

6. A heavy-duty cable trench cover opening and closing tool according to claim 5, characterized in that: Two special clamps (10) are provided, and the two special clamps (10) are connected via two transversely arranged guide rods (20).

7. A heavy-duty cable trench cover opening and closing tool according to claim 6, characterized in that: Sleeves (21) are fixed at both ends of the special clamp (10), and the sleeves (21) are nested in the outer circumference of the guide rod (20).

8. A heavy-duty cable trench cover opening and closing tool according to claim 1, characterized in that: A push-pull handrail is installed on the rear side of the vehicle frame (1), and a controller is installed on the push-pull handrail.

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