A hoisting auxiliary device for fabricated cable trench

Abstract

The utility model relates to a hoisting auxiliary device of fabricated cable trench, and relates to hoisting device field, it includes cable trench frame and hoisting frame, hoisting frame is located in cable trench frame, both sides of hoisting frame all are installed with side baffle, and all are installed with the lifting rope for hoisting on two side baffles, it needs to be explained, in the utility model, when hoisting cable trench frame through hoisting frame, make two horizontal top bars drive two mobile pulleys to be in contact with the two sides inner wall of cable trench frame through two horizontal buffer bars, simultaneously make two side baffles can be clamped on the both sides of cable trench frame, so that hoisting frame can automatically move to the center position of cable trench frame, realize the purpose of automatic search cable trench frame center, in addition, when moving on cable trench frame, make two unfolding frames drive two blocking cloth to unfold, in turn make when the broken stone of cable trench frame falling or breakage, can be blocked by blocking cloth, thereby guarantee that hoisting work is safe and convenient to carry out.

Description

Technical Field

[0001] This invention relates to the field of hoisting equipment technology, and in particular to a prefabricated cable trench hoisting auxiliary device. Background Technology

[0002] Cable trenches are underground conduits used for laying and replacing power or telecommunications cables. They also serve as the enclosure structure for the cables being laid, and come in rectangular, circular, and arched shapes. Prefabricated construction refers to transferring a large amount of on-site work from traditional construction methods to factories. Building components and accessories are prefabricated in factories, transported to the construction site, and assembled using reliable connection methods. Prefabricated buildings mainly include precast concrete structures, steel structures, and modern wood structures. Because they employ standardized design, factory production, assembly construction, information management, and intelligent applications, they represent modern industrialized production methods. Due to their convenience and efficiency, prefabricated construction is also beginning to be used in cable trench construction, where concrete cable trench frames are built in factories and transported to the site for assembly.

[0003] It should be noted that when assembling prefabricated cable trench racks, hoisting equipment is required to lift them to the installation position. However, during the hoisting process, the cable trench rack is usually simply hung on the hook using slings. This hoisting method is prone to excessive shaking due to the instability of the cable trench rack's center, which can lead to construction accidents. Furthermore, there are no protective measures during hoisting. If the cable trench rack is damaged due to falling debris, impact, or other reasons, the falling concrete blocks can directly injure equipment or personnel on the ground, posing a safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide an assembly-type cable trench hoisting auxiliary device to solve the problems mentioned in the background art.

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

[0006] A prefabricated cable trench hoisting auxiliary device includes a cable trench frame and a hoisting frame. The hoisting frame is located inside the cable trench frame. Side baffles are installed on both sides of the hoisting frame, and hoisting ropes for hoisting are installed on both side baffles.

[0007] The hoisting frame is equipped with a center automatic positioning device, which is used to move the hoisting frame to the center position of the cable trench frame. The center automatic positioning device includes two transverse push rods and two retractable frames. The two transverse push rods are slidably installed on both sides of the hoisting frame, and the two retractable frames are slidably installed on the other two sides of the hoisting frame. A transverse buffer rod is movably installed inside each of the two transverse buffer rods, and two movable rollers are rotatably installed on each of the two transverse buffer rods. The movable rollers are in contact with the inner wall of the cable trench frame. A retraction rod is movably installed inside each of the two retraction frames, and the two retraction rods are respectively installed on the two side baffles.

[0008] It also includes a breakage blocking device, which is installed on one of the side baffles and is used to intercept and block the cable trench frame; the breakage blocking device includes a rotating base plate, which is rotatably installed on the bottom side of one of the side baffles, and two unfolding frames are rotatably installed on the rotating base plate, with a blocking cloth connected between the unfolding frames and the rotating base plate;

[0009] A rotation triggering device is connected between the side baffle and the breaking and blocking device. The rotation triggering device is used to rotate the breaking and blocking device to the underside of the cable trench frame and unfold it. The rotation triggering device includes a pull-down bracket, which is movably installed inside the side baffle. The rotating base plate is rotatably installed on the pull-down bracket. A blocking rod is movably installed on the pull-down bracket and inserted into the rotating base plate to restrict the rotating base plate.

[0010] Furthermore, in a preferred embodiment of the present invention, the central automatic positioning device further includes a transition column, which is rotatably mounted on the hoisting frame, and a compression frame is mounted on the transition column, the compression frame being in contact with the cable trench frame;

[0011] Each of the two transverse top rods is equipped with a spreading frame, and each of the two spreading frames is rotatably equipped with a spreading rotating rod. Two spreading rotating shafts are rotatably mounted on the spreading rotating rod. One spreading rotating shaft is mounted on the compression frame, and the other spreading rotating shaft is rotatably mounted on the spreading frame. The compression frame moves by moving the two spreading frames through the two spreading rotating rods, which in turn moves the two transverse top rods.

[0012] Furthermore, in a preferred embodiment of the present invention, a synchronization frame is installed on the bottom side of both retraction frames, and a drive rod is rotatably installed on the bottom side of the hoisting frame, the drive rod being rotatably connected to the adapter column;

[0013] Two drive shafts are rotatably mounted on the drive rod, and the two drive shafts are respectively movably mounted in the two synchronization frames.

[0014] Furthermore, in a preferred embodiment of the present invention, a return spring is installed on the drive rod, and the other end of the return spring is installed on the hoisting frame;

[0015] The outer surface of the adapter post is provided with an arc-shaped drive groove, and a drive block is movably installed in the drive groove. The drive block is installed on the drive rod.

[0016] Furthermore, in a preferred embodiment of the present invention, a buffer spring is installed on one side of the transverse buffer rod, and the other end of the buffer spring is installed on the inner wall of the transverse top rod;

[0017] A pull spring is installed on one side of the retraction rod, and the other end of the pull spring is installed on the inner wall of the retraction frame.

[0018] Furthermore, in a preferred embodiment of the present invention, four extension plates are rotatably mounted on the top side of the rotating base plate, two of the extension plates located on the same side are arranged in parallel, and two of the extension plates located on the same side are movably mounted on the unfolding frame;

[0019] Two mounting shafts are rotatably mounted on the extension plate. One mounting shaft is mounted on the rotating base plate, and the other mounting shaft is movably mounted inside the unfolding frame.

[0020] Furthermore, in a preferred embodiment of the present invention, the rotation triggering device further includes a pull-back bracket, which is movably mounted on the top side of the rotating base plate;

[0021] Synchronous shafts are mounted on the top sides of the four extension plates, and the four synchronous shafts are movably mounted inside the pull-back frame.

[0022] Furthermore, in a preferred embodiment of the present invention, a push-pull groove is provided on the top side of the rotating base plate, and the pull-back bracket is slidably installed in the push-pull groove;

[0023] A push-pull spring is installed on the inner wall of the push-pull groove, and the other end of the push-pull spring is installed on the pull-back bracket.

[0024] Furthermore, in a preferred embodiment of the present invention, a mounting groove is provided on the rotating base plate, and the pull-down bracket is rotatably mounted in the mounting groove;

[0025] An unfolding torsion spring is installed on the inner wall of the mounting slot, and the other end of the unfolding torsion spring is installed on the pull-down bracket.

[0026] Furthermore, in a preferred embodiment of the present invention, a blocking slot is provided on the rotating base plate, and the blocking rod is inserted into the blocking slot;

[0027] A pull-down cavity is provided on the side baffle, and the pull-down bracket is movably installed in the pull-down cavity. A blocking groove is provided on one inner wall of the pull-down cavity, and the blocking rod is movably installed in the blocking groove.

[0028] The pull-down bracket has an upward sliding groove on one side, the blocking rod is slidably installed in the upward sliding groove, the blocking rod is equipped with a support spring, and the other end of the support spring is installed on the inner wall of the upward sliding groove.

[0029] The beneficial effects of the prefabricated cable trench hoisting auxiliary device proposed in this invention are:

[0030] In this invention, by setting up a central automatic positioning device, when the cable trench frame is hoisted by the hoisting frame, the two horizontal top rods drive the two moving rollers to contact the inner walls of both sides of the cable trench frame through the two horizontal buffer rods. At the same time, the two side baffles can clamp onto the two sides of the cable trench frame, thereby allowing the hoisting frame to automatically move to the center position of the cable trench frame, achieving the purpose of automatically finding the center of the cable trench frame. This makes the cable trench frame hoisting not only more convenient but also ensures the stability of the hoisting.

[0031] Furthermore, in this invention, by setting up a breaking and blocking device, when the cable trench frame moves upward, the two unfolding frames drive the two blocking cloths to unfold, so that when the cable trench frame falls or is damaged, it can be blocked by the blocking cloths, thereby effectively preventing the problem of gravel or broken cement blocks falling directly to the ground and causing damage to equipment or personnel on the ground, and ensuring the safe conduct of hoisting work.

[0032] Furthermore, in this invention, by setting a rotation trigger device, when the cable trench frame moves upward, the blocking rod can automatically disengage from the blocking slot, thereby unlocking the rotating base plate and allowing the four unfolding frames to rotate automatically. This makes the entire process unnecessary for manual operation and more convenient to use. Attached Figure Description

[0033] Figure 1 This is a structural diagram illustrating the connection between the cable trench frame and the hoisting frame of an assembly-type cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram illustrating the connection between the hoisting frame and the central automatic positioning device of an assembly-type cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0035] Figure 3 This is a schematic diagram of the connection between the synchronous frame and the drive rotating rod of an assembly-type cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0036] Figure 4 This is a schematic diagram of the connection between the transverse top rod and the compression frame and other structures of a prefabricated cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0037] Figure 5 This is a cross-sectional structural diagram showing the connection between the transverse top rod and the transverse buffer rod of a prefabricated cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0038] Figure 6 This is a partial cross-sectional view of the connection between the retraction frame and the recovery tie rod of a prefabricated cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0039] Figure 7 An assembly-type cable trench hoisting auxiliary device provided in this embodiment of the invention. Figure 5 A schematic diagram of the structure of part A;

[0040] Figure 8 This is a partial structural diagram illustrating the connection between the rotating base plate and the unfolding frame of an assembly-type cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0041] Figure 9 This is a partial structural diagram illustrating the connection between the pull-down bracket and the pull-back bracket of an assembled cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0042] Figure 10 This is a partial cross-sectional view of the connection between the side baffle and the pull-down bracket of an assembled cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0043] Figure 11 This is a partial cross-sectional view of the connection between the rotating base plate and the pull-down bracket of an assembly-type cable trench hoisting auxiliary device provided in an embodiment of the present invention.

[0044] In the diagram: 1-Cable trench frame; 2-Lifting frame; 3-Side baffle; 4-Lifting rope; 5-Center automatic positioning device; 501-Horizontal top rod; 502-Horizontal buffer rod; 503-Moving roller; 504-Buffer spring; 505-Adapter column; 506-Spreading rotating rod; 507-Spreading frame; 508-Spreading rotating shaft; 509-Compression frame; 510-Retraction frame; 511-Retraction pull rod; 512-Retraction spring; 513-Synchronization frame; 514-Drive rotating rod; 515-Drive rotating shaft; 516-Reset spring; 517 - Drive slot; 518 - Drive block; 6 - Crushing blocking device; 601 - Rotating base plate; 602 - Unfolding frame; 603 - Blocking cloth; 604 - Extension plate; 605 - Mounting shaft; 7 - Rotation triggering device; 701 - Pull-down frame; 702 - Retracting frame; 703 - Synchronous shaft; 704 - Mounting slot; 705 - Unfolding torsion spring; 706 - Push-pull slot; 707 - Push-pull spring; 708 - Blocking slot; 709 - Blocking rod; 710 - Pull-down cavity; 711 - Blocking slot; 712 - Upward sliding groove; 713 - Support spring. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] Furthermore, in the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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 invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] Furthermore, terms such as "horizontal," "vertical," and "perpendicular" do not imply that components must be absolutely vertical, but rather that they can be slightly tilted. For example, "vertical" simply means that its direction is more vertical relative to "horizontal," not that the structure must be completely vertical, but can be slightly tilted.

[0050] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 invention based on the specific circumstances.

[0051] Please refer to the attached instruction manual. Figures 1-2 The present invention provides an assembly-type cable trench hoisting auxiliary device, which includes a cable trench frame 1 and a hoisting frame 2. The hoisting frame 2 is located inside the cable trench frame 1. Side baffles 3 are installed on both sides of the hoisting frame 2, and hoisting ropes 4 for hoisting are installed on both side baffles 3.

[0052] Further, please refer to the appendix to the instruction manual. Figures 3-7This invention provides a prefabricated cable trench hoisting auxiliary device. A central automatic positioning device 5 is installed on the hoisting frame 2. The central automatic positioning device 5 is used to move the hoisting frame 2 to the center position of the cable trench frame 1. The central automatic positioning device 5 includes two transverse push rods 501 and two retractable frames 510. The two transverse push rods 501 are slidably installed on both sides of the hoisting frame 2, and the two retractable frames 510 are slidably installed on the other two sides of the hoisting frame 2. A transverse buffer rod 502 is movably installed inside each of the two transverse push rods 501. Two movable rollers 503 are rotatably installed on each of the two transverse buffer rods 502, and the movable rollers 503 contact the inner wall of the cable trench frame 1. A retraction rod 511 is movably installed inside each of the two retractable frames 510, and the two retraction rods 511 are respectively installed on two side baffles 3. It should be noted that, in this embodiment of the invention, when the cable trench frame 1 is hoisted by the hoisting frame 2, the two horizontal top rods 501 drive the two moving rollers 503 to contact the inner walls on both sides of the cable trench frame 1 through the two horizontal buffer rods 502. At the same time, the two side baffles 3 can be clamped on both sides of the cable trench frame 1, thereby allowing the hoisting frame 2 to automatically move to the center position of the cable trench frame 1, achieving the purpose of automatically finding the center of the cable trench frame 1. This makes the hoisting of the cable trench frame 1 not only more convenient but also ensures the stability of the hoisting.

[0053] More specifically, in this embodiment of the invention, a breaking and blocking device 6 is also included. The breaking and blocking device 6 is installed on a side baffle 3 and is used to intercept and block the cable trench frame 1. The breaking and blocking device 6 includes a rotating base plate 601, which is rotatably installed on the bottom side of a side baffle 3. Two unfolding frames 602 are rotatably installed on the rotating base plate 601, and a blocking cloth 603 is connected between the unfolding frames 602 and the rotating base plate 601. It should be noted that in this embodiment of the invention, when the cable trench frame 1 moves upward, the two unfolding frames 602 cause the two blocking cloths 603 to unfold, so that when the cable trench frame 1 falls or is damaged, it can be blocked by the blocking cloths 603, thereby effectively preventing the gravel or broken cement blocks from falling directly to the ground and causing damage to equipment or personnel on the ground, and ensuring the safe conduct of the hoisting work.

[0054] Furthermore, more specifically, a rotation triggering device 7 is connected between the side baffle 3 and the breaking and blocking device 6. The rotation triggering device 7 is used to rotate the breaking and blocking device 6 to below the cable trench frame 1 and unfold it. The rotation triggering device 7 includes a pull-down bracket 701, which is movably installed inside the side baffle 3. A rotating base plate 601 is rotatably installed on the pull-down bracket 701. A blocking rod 709 is movably installed on the pull-down bracket 701 and is inserted into the rotating base plate 601 to restrict the rotating base plate 601. It should be noted that, in this embodiment of the invention, when the cable trench frame 1 moves upward, the blocking rod 709 can automatically disengage from the blocking slot 708, thereby unlocking the rotating base plate 601 and allowing the four unfolding frames 602 to rotate automatically. This makes the entire process more convenient to use without manual operation.

[0055] Please continue to refer to the instruction manual appendix. Figures 3-7 Furthermore, the prefabricated cable trench hoisting auxiliary device provided in this embodiment of the invention includes a center automatic positioning device 5, which further includes a transition column 505. The transition column 505 is rotatably mounted on the hoisting frame 2, and a compression frame 509 is installed on the transition column 505. The compression frame 509 is in contact with the cable trench frame 1.

[0056] In addition, each of the two transverse top rods 501 is equipped with a support frame 507, and each of the two support frames 507 is rotatably equipped with a support rod 506. Two support shafts 508 are rotatably mounted on the support rods 506. One support shaft 508 is mounted on the compression frame 509, and the other support shaft 508 is rotatably mounted on the support frame 507. The movement of the compression frame 509 drives the movement of the two support frames 507 through the two support rods 506, which in turn drives the movement of the two transverse top rods 501. It should be noted that, in this embodiment of the invention, when the compression frame 509 is squeezed by the cable trench frame 1, the two spreading shafts 508 drive the two spreading frames 507 to move. The spreading frame 507 drives the transverse top rod 501 to move through another spreading shaft 508. Then, the two transverse top rods 501 drive the two moving rollers 503 to contact the inner walls on both sides of the cable trench frame 1 through the two transverse buffer rods 502, so that the hoisting frame 2 can be supported inside the cable trench frame 1.

[0057] More specifically, in this embodiment of the invention, a synchronization frame 513 is installed on the bottom side of each of the two retraction frames 510, and a drive rod 514 is rotatably installed on the bottom side of the hoisting frame 2. The drive rod 514 is rotatably connected to the adapter column 505. In addition, two drive shafts 515 are rotatably installed on the drive rod 514, and the two drive shafts 515 are respectively movably installed in the two synchronization frames 513. It should be noted that in this embodiment of the invention, the adapter column 505 drives the drive block 518 to rotate through the drive groove 517, so that the drive block 518 drives the drive rod 514 to rotate, and then the drive rod 514 drives the two synchronization frames 513 to move through the two drive shafts 515. The synchronization frames 513 drive the retraction frames 510 to move, thereby achieving the purpose of synchronous movement of the two retraction frames 510.

[0058] More specifically, in this embodiment of the invention, a return spring 516 is installed on the drive rod 514, and the other end of the return spring 516 is installed on the hoisting frame 2. In addition, an arc-shaped drive groove 517 is opened on the outer surface of the adapter column 505, and a drive block 518 is movably installed in the drive groove 517. The drive block 518 is installed on the drive rod 514. It should be noted that in this embodiment of the invention, during the downward movement of the compression frame 509, the adapter column 505 is driven to move. The adapter column 505 drives the drive block 518 to rotate through the drive groove 517, so that the drive block 518 drives the drive rod 514 to rotate. The drive rod 514 drives the two retraction frames 510 to move through the two drive shafts 515, thereby causing the two retraction pull rods 511 to drive the two side baffles 3 to move, clamping the two sides of the cable trench frame 1.

[0059] Please continue to refer to the instruction manual appendix. Figures 3-7 More specifically, in this embodiment of the invention, a buffer spring 504 is installed on one side of the transverse buffer rod 502, and the other end of the buffer spring 504 is installed on the inner wall of the transverse top rod 501; in addition, a pull-back spring 512 is installed on one side of the retraction rod 511, and the other end of the pull-back spring 512 is installed on the inner wall of the retraction frame 510. It should be noted that, in this embodiment of the invention, when the two transverse top rods 501, driven by the two transverse buffer rods 502, drive the two moving rollers 503 to contact the inner walls of both sides of the cable trench frame 1, they are squeezed and retracted by the inner walls of the cable trench frame 1, causing the transverse buffer rods 502 to move within the transverse top rods 501 and causing the buffer springs 504 to be stressed; when the retraction frame 510 drives the side baffles 3 to move through the retraction rods 511 and drives the hoisting frame 2 to move within the cable trench frame 1, the hoisting frame 2 moves on the inner wall of the cable trench frame 1 through multiple moving rollers 503, causing the side baffles 3 to move within the retraction frame 510 through the retraction rods 511 and causing the return springs 512 to be stressed, thereby enabling the two side baffles 3 to be clamped on both sides of the cable trench frame 1.

[0060] Further, please refer to the appendix to the instruction manual. Figure 8 and Figure 9 The present invention provides an assembly cable trench hoisting auxiliary device, wherein four extension plates 604 are rotatably installed on the top side of the rotating base plate 601, two extension plates 604 located on the same side are arranged in parallel, and two extension plates 604 located on the same side are movably installed on the unfolding frame 602.

[0061] Furthermore, two mounting shafts 605 are rotatably mounted on the extension plate 604. One mounting shaft 605 is mounted on the rotating base plate 601, and the other mounting shaft 605 is movably mounted inside the unfolding frame 602. It should be noted that, in this embodiment of the invention, when the pull-back frame 702 moves, four synchronous shafts 703 drive the four unfolding frames 602 to rotate. The unfolding frame 602 rotates on one mounting shaft 605, and at the same time, the unfolding frame 602 unfolds through the other mounting shaft 605, so that the two unfolding frames 602 drive the two blocking cloths 603 to unfold, thereby achieving the purpose of automatic unfolding of the blocking cloths 603.

[0062] For more details, please refer to the appendix to the instruction manual. Figures 9-11 In this embodiment of the invention, the rotation triggering device 7 further includes a pull-back frame 702, which is movably mounted on the top side of the rotating base plate 601. Furthermore, a synchronous shaft 703 is mounted on the top side of each of the four extension plates 604, and all four synchronous shafts 703 are movably mounted within the pull-back frame 702. It should be noted that, in this embodiment of the invention, when the pull-back frame 702 moves, it drives the four unfolding frames 602 to rotate via the four synchronous shafts 703, while simultaneously the four synchronous shafts 703 slide within the pull-back frame 702.

[0063] More specifically, in this embodiment of the invention, a push-pull groove 706 is provided on the top side of the rotating base plate 601, and a pull-back bracket 702 is slidably installed in the push-pull groove 706; a push-pull spring 707 is installed on the inner wall of the push-pull groove 706, and the other end of the push-pull spring 707 is installed on the pull-back bracket 702. It should be noted that, in this embodiment of the invention, when the rotating base plate 601 no longer obstructs the pull-back bracket 702, the pull-back bracket 702 is pulled back to its original position under the retraction force of the push-pull spring 707, so that the pull-back bracket 702 moves horizontally within the push-pull groove 706.

[0064] Please continue to refer to the instruction manual appendix. Figures 9-11More specifically, in this embodiment of the invention, a mounting groove 704 is provided on the rotating base plate 601, and the pull-down bracket 701 is rotatably mounted in the mounting groove 704; a deployment torsion spring 705 is installed on the inner wall of the mounting groove 704, and the other end of the deployment torsion spring 705 is mounted on the pull-down bracket 701. It should be noted that, in this embodiment of the invention, when the rotating base plate 601 is unlocked, the rebound force of the deployment torsion spring 705 enables the rotating base plate 601 to automatically rotate to the bottom side of the cable trench frame 1.

[0065] More specifically, in this embodiment of the invention, a blocking slot 708 is provided on the rotating base plate 601, and a blocking rod 709 is inserted into the blocking slot 708; a pull-down cavity 710 is provided on the side baffle 3, and a pull-down bracket 701 is movably installed in the pull-down cavity 710; a blocking groove 711 is provided on one inner wall of the pull-down cavity 710, and the blocking rod 709 is movably installed in the blocking groove 711.

[0066] Furthermore, an upward sliding groove 712 is provided on one side of the pull-down bracket 701. A blocking rod 709 is slidably installed in the upward sliding groove 712. A support spring 713 is installed on the blocking rod 709, and the other end of the support spring 713 is installed on the inner wall of the upward sliding groove 712. It should be noted that, in this embodiment of the invention, during the upward movement of the cable trench frame 1, the side baffle 3 moves on the pull-down bracket 701 through the pull-down cavity 710 until the cable trench frame 1 leaves the ground and continues to move, driving the rotating base plate 601 to leave the ground. At this time, the side baffle 3 continues to move upward, and drives the blocking rod 709 to move upward through the inner wall of the blocking groove 711. At this time, the blocking rod 709 moves in the upward sliding groove 712 and drives the support spring 713 to be stressed. At the same time, the blocking rod 709 disengages from the blocking slot 708, achieving the purpose of automatically unlocking the rotating base plate 601.

[0067] In summary, the working principle of the prefabricated cable trench hoisting auxiliary device provided in this embodiment of the invention is as follows:

[0068] When the cable trench frame 1 is hoisted by the hoisting frame 2, the hoisting frame 2 passes through the cable trench frame 1, and then the two side baffles 3 are lifted by two hoisting ropes 4 using a crane or other hoisting equipment. The cable trench frame 1 is lifted, so that the compression frame 509 is squeezed and retracted by the cable trench frame 1. The movement of the compression frame 509 drives the movement of two expansion frames 507 through two expansion shafts 508. The expansion frame 507 drives the movement of the transverse top rod 501 through another expansion shaft 508. The two transverse top rods 501 drive the two moving rollers 503 through two transverse buffer rods 502 to contact the inner walls of both sides of the cable trench frame 1 and are squeezed and retracted by the inner walls of the cable trench frame 1. This causes the transverse buffer rods 502 to move within the transverse top rods 501 and drive the buffer springs 504 to bear force, so that the hoisting frame 2 can be adapted to cable trench frames 1 of different sizes.

[0069] Furthermore, the movement of the compression frame 509 causes the transition column 505 to move. The transition column 505 drives the drive block 518 to rotate via the drive groove 517, which in turn drives the drive rod 514 to rotate. This, in turn, causes the drive rod 514 to drive the two synchronous frames 513 to move via the two drive shafts 515. The synchronous frames 513 drive the retraction frame 510 to move. The retraction frame 510 drives the side baffle 3 to move via the retraction rod 511, and also drives the hoisting frame 2 to move within the cable trench frame 1. The mounting frame 2 moves on the inner wall of the cable trench frame 1 via multiple moving rollers 503, causing the side baffles 3 to move within the retracting frame 510 via the retraction rod 511, and driving the return spring 512 to be stressed. This allows the two side baffles 3 to be clamped on both sides of the cable trench frame 1, and the lifting frame 2 to move to the center position of the cable trench frame 1, thereby achieving the purpose of automatically finding the center of the cable trench frame 1. This makes the cable trench frame 1 more convenient to lift and ensures the stability of the lifting.

[0070] Furthermore, as the cable trench frame 1 moves upward, the side baffle 3 moves on the pull-down bracket 701 through the pull-down cavity 710 until the cable trench frame 1 leaves the ground. As it continues to move and drives the rotating base plate 601 to leave the ground, the side baffle 3 continues to move upward, and drives the blocking rod 709 upward through the inner wall of the blocking groove 711. At this time, the blocking rod 709 moves in the upward sliding groove 712 and drives the support spring 713 to be stressed. At the same time, the blocking rod 709 disengages from the blocking slot 708, thereby unlocking the rotating base plate 601. At this time, under the rebound force of the unfolded torsion spring 705, the rotating base plate 601 is driven to move upward. When plate 601 rotates to the bottom side of cable trench frame 1, and the blocking rod 709 moves upward, it no longer blocks the pull-back frame 702. At this time, under the retraction force of the push-pull spring 707, the pull-back frame 702 is pulled back to its original position. The pull-back frame 702 drives the four unfolding frames 602 to rotate through the four synchronous shafts 703. The unfolding frame 602 rotates on one mounting shaft 605, and the unfolding frame 602 is driven to unfold through another mounting shaft 605, so that the two unfolding frames 602 drive the two blocking cloths 603 to unfold, thereby preventing the cable trench frame 1 from falling gravel or being damaged, thus avoiding injury from falling debris.

[0071] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fabricated cable trench hoisting auxiliary device, characterized in that, The utility model provides a cable trench frame and hoisting frame, the hoisting frame is located in the cable trench frame, both sides of the hoisting frame are equipped with side baffle, and the hoisting rope for hoisting is installed on two side baffles; The center automatic positioning device is installed on the hoisting frame, and the center automatic positioning device is used for moving the hoisting frame to the center position of the cable trench frame; the center automatic positioning device comprises two transverse jacks and two retraction frames, the two transverse jacks are slidably installed on two sides of the hoisting frame, the two retraction frames are slidably installed on the other two sides of the hoisting frame, a transverse buffer rod is movably installed in each of the two transverse jacks, two moving rollers are rotatably installed on each of the two transverse buffer rods, the moving rollers are in contact with the inner wall of the cable trench frame, a recovery pull rod is movably installed in each of the two retraction frames, and the two recovery pull rods are respectively installed on the two side baffles; The utility model also comprises a crushing blocking device, the crushing blocking device is installed on one side baffle, and the crushing blocking device is used for intercepting and blocking the cable trench frame; the crushing blocking device comprises a rotating bottom plate, the rotating bottom plate is rotatably installed on the bottom side of one side baffle, two unfolding frames are rotatably installed on the rotating bottom plate, and blocking cloth is connected between the unfolding frames and the rotating bottom plate; A rotating trigger device is connected between the side baffle and the crushing blocking device, the rotating trigger device is used for rotating the crushing blocking device to the lower side of the cable trench frame and unfolding; the rotating trigger device comprises a pull-down frame, the pull-down frame is movably installed in the side baffle, the rotating bottom plate is rotatably installed on the pull-down frame, a blocking insertion rod is movably installed on the pull-down frame, the blocking insertion rod is inserted on the rotating bottom plate, and the rotating bottom plate is limited; The center automatic positioning device also comprises an adapter column, the adapter column is rotatably installed on the hoisting frame, a compression frame is installed on the adapter column, the compression frame is in contact with the cable trench frame; a strutting frame is installed on each of the two transverse jacks, a strutting rotation rod is rotatably installed on each of the two strutting frames, two strutting rotation shafts are rotatably installed on the strutting rotation rod, one strutting rotation shaft is installed on the compression frame, and the other strutting rotation shaft is rotatably installed on the strutting frame; the compression frame moves through the two strutting rotation rods to drive the two strutting frames to move, so as to drive the two transverse jacks to move; The bottom side of each of the two retraction frames is equipped with a synchronous frame, the bottom side of the hoisting frame is rotatably equipped with a driving rotation rod, and the driving rotation rod is rotatably connected with the adapter column; two driving rotation shafts are rotatably installed on the driving rotation rod, and the two driving rotation shafts are movably installed in the two synchronous frames respectively.

2. The assembled cable trench hoisting auxiliary device according to claim 1, characterized in that, A reset spring is installed on the driving rotation rod, and the other end of the reset spring is installed on the hoisting frame; An arc-shaped driving groove is formed in the outer surface of the adapter column, a driving block is movably installed in the driving groove, and the driving block is installed on the driving rotation rod.

3. The assembled cable trench hoisting auxiliary device according to claim 2, characterized in that, One side of the transverse buffer rod is provided with a buffer spring, and the other end of the buffer spring is installed on the inner wall of the transverse top rod; One side of the recovery pull rod is provided with a pull-back spring, and the other end of the pull-back spring is installed on the inner wall of the retraction frame.

4. The assembled cable trench hoisting auxiliary device according to claim 1, characterized in that, Four extension plates are rotationally installed on the top side of the rotating bottom plate, two extension plates on the same side are arranged in parallel, and two extension plates on the same side are movably installed on the unfolding frame. Two mounting shafts are rotationally installed on the extension plate, one mounting shaft is installed on the rotating bottom plate, and the other mounting shaft is movably installed in the unfolding frame.

5. The assembled cable trench hoisting auxiliary device according to claim 4, characterized in that, The rotating trigger device further comprises a pull-back frame movably installed on the top side of the rotating bottom plate. The top side of each of the four extension plates is provided with a synchronous shaft, and the four synchronous shafts are movably installed in the pull-back frame.

6. The assembled cable trench hoisting auxiliary device according to claim 5, characterized in that, The top side of the rotating bottom plate is provided with a push-pull groove, and the pull-back frame is slidably installed in the push-pull groove. A push-pull spring is installed on the inner wall of the push-pull groove, and the other end of the push-pull spring is installed on the pull-back frame.

7. The assembled cable trench hoisting auxiliary device according to claim 6, characterized in that, An installation groove is formed in the rotating bottom plate, and the pull-down frame is rotationally installed in the installation groove. An unfolding torsional spring is installed on the inner wall of the installation groove, and the other end of the unfolding torsional spring is installed on the pull-down frame.

8. The assembled cable trench hoisting auxiliary device according to claim 7, characterized in that, A blocking insertion slot is formed in the rotating bottom plate, and a blocking insertion rod is inserted into the blocking insertion slot. A pull-down cavity is formed in the side blocking plate, and the pull-down frame is movably installed in the pull-down cavity. One side of the pull-down frame is provided with an upward sliding groove, the blocking insertion rod is slidably installed in the upward sliding groove, a supporting spring is installed on the blocking insertion rod, and the other end of the supporting spring is installed on the inner wall of the upward sliding groove.

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