Cable dragging structure for box type foundation and dragging method thereof

Abstract

The invention discloses a cable dragging structure for a box type foundation and a dragging method thereof.The side wall of one side of the box type foundation is provided with a penetrating-out hole for a cable to penetrate out, and the cable dragging structure comprises a steel wire mesh sleeve connected with the dragging end of the cable; the winching machine is used for dragging a cable, and a steel wire rope of the winching machine is connected with the steel wire mesh sleeve; the at least one fixed pulley is used for guiding the cable, the cable is wound on the at least one fixed pulley, all the fixed pulleys and the penetrating-out hole are located at the same elevation, and at least one fixed pulley right faces the penetrating-out hole; the cable dragging structure comprises a cable and a rolling piece used for protecting the cable, the cable is placed on the rolling piece, the rolling piece is connected to the contact position of a dragging design route of the cable and the side wall of the box type foundation, and the cable is protected by arranging the dragging structure.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a cable dragging structure for a box foundation and a dragging method thereof. Background Art

[0002] During the construction of a new energy power station, the laying of cables is a key factor affecting the construction period. In a conventional 100MW / 200MWh energy storage power station, the cable length is about 40,000 meters; the foundation forms of electrical equipment in the booster station and energy storage area are generally underground box-shaped reinforced concrete foundations. The laying and dragging of cables need to pass through underground cable pipes, cable ducts embedded in box foundations and strip foundations, and a large amount of manual dragging is required. Especially when the cable passes through the through-hole on the box foundation, if it needs to turn, the outer skin of the cable will rub against the through-hole, damaging the outer skin of the cable. In addition, when the cable leaves the box foundation, it will inevitably rub against the side wall edges and corners of the box foundation, damaging both the outer skin of the cable and the side wall edges and corners. The loss of the cable outer skin is serious, which will affect the cable voltage withstand test.

[0003] The conventional treatment method is to place flexible rubber pads at the through-holes and the positions where the side wall edges and corners are touched to protect the outer skin of the cable and the side wall edges and corners. This method has two disadvantages: one is that the flexible rubber pads will increase the friction force and the difficulty of cable dragging; the second is that the flexible rubber pads will slide during the cable dragging, move in position, and need to be manually reset. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a cable dragging structure for a box foundation and a dragging method thereof. By setting fixed pulleys, a guiding effect is provided when the cable needs to turn, avoiding large-scale deformation of the cable and friction with the through-hole. By setting rolling elements, both the outer skin of the cable and the side wall of the box foundation are protected.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is a cable dragging structure for a box foundation. A through-hole for the cable to pass through is opened on one side wall of the box foundation. The cable dragging structure includes:

[0006] A wire mesh sleeve, which is connected to the dragging end of the cable;

[0007] A winch for dragging the cable, and the steel wire rope of the winch is connected to the wire mesh sleeve;

[0008] At least one fixed pulley for guiding the cable. The cable is wound around at least one of the fixed pulleys. All the fixed pulleys are at the same elevation as the through-hole, and at least one of the fixed pulleys is directly opposite to the through-hole;

[0009] A rolling member is used to protect the cable, the cable is placed on the rolling member, and the rolling member is connected at a position where a dragging design route of the cable contacts the side wall of the box-type foundation.

[0010] A further improvement of the cable dragging structure for a box-type foundation of the present invention is that, when the cable outlet direction is the same as the cable dragging direction, and the orthographic projection of the outlet direction and the orthographic projection of the dragging direction are on the same straight line, the fixed pulley is provided with one, the fixed pulley is connected to the bottom of the box-type foundation and is located in the outlet direction of the cable, the rolling element is connected to the top of the side wall on the other side opposite to the side wall where the outlet hole is located, and the orthographic projection of the rolling element, the fixed pulley and the outlet hole is on a straight line.

[0011] A further improvement of the cable dragging structure for a box-type foundation of the present invention is that, when the cable outlet direction is opposite to the cable dragging direction, and the orthographic projection of the outlet direction and the orthographic projection of the dragging direction are on the same straight line, the fixed pulley is provided with one, the fixed pulley is connected to the bottom of the box-type foundation and is located in the cable outlet direction, the rolling element is connected to the top of the side wall where the outlet hole is located and is located directly above the outlet hole, and the orthographic projection of the rolling element, the fixed pulley and the outlet hole is on a straight line.

[0012] A further improvement of the cable dragging structure for a box-type foundation of the present invention is that, when the cable outlet direction is opposite to the cable dragging direction, and the orthographic projection of the outlet direction and the orthographic projection of the dragging direction are offset from each other, two fixed pulleys are provided, and both of the two fixed pulleys are connected to the relative inner side of the side wall opposite to the other side of the side wall where the outlet hole is located, one of the fixed pulleys is located in the cable outlet direction, and the other fixed pulley is located in the cable dragging direction, the rolling element is connected to the top of the side wall where the outlet hole is located, and is located in the cable dragging direction, and the orthographic projection of the roller, the two fixed pulleys and the connecting line of the outlet hole is U-shaped.

[0013] A further improvement of the cable dragging structure for the box-type foundation of the present invention is that an embedded part for connecting the fixed pulley is connected to the box-type foundation, and the fixed pulley is detachably connected to the embedded part via a hook.

[0014] A further improvement of the cable dragging structure for a box-type foundation of the present invention is that a buffer belt is connected between the fixed pulley and the embedded part, the buffer belt is connected to the embedded part, and the fixed pulley is detachably connected to the buffer belt via a hook.

[0015] A further improvement of the cable dragging structure for box-type foundation of the present invention is that the rolling element is a pulley block.

[0016] A cable dragging method for a box foundation, comprising the steps of:

[0017] Step 1: Provide the cable dragging structure for the box foundation described above;

[0018] Step 2: Winding the cable around at least one of the fixed pulleys and placing the cable on the rolling element;

[0019] Step 3: Start the winch to drag the cable.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] 1. By setting a fixed pulley, a guiding function is provided when the cable needs to turn, so as to avoid friction between the cable and the outlet hole due to large-scale deformation.

[0022] 2. By providing rolling parts for the cables to rest on, both the outer sheath of the cables and the side walls of the box-type foundation are protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of dragging the cable across the box-type foundation of the present invention.

[0025] Figure 2 This is a schematic diagram of the cable being pulled out in the same direction according to the present invention.

[0026] Figure 3 It is a schematic diagram of the reverse threading and dragging of the cable of the present invention.

[0027] Figure 4 It is a schematic diagram of the cable reverse passing out and ectopic dragging of the present invention.

[0028] In the figure: 1. Capstan; 2. Wire mesh sleeve; 3. Cable; 4. Box foundation; 5. Rolling member; 6. Through hole; 7. Fixed pulley. DETAILED DESCRIPTION

[0029] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0030] The cable dragging structure and its dragging method for the box foundation of the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0031] Please refer to Figures 1 to 4 As shown, for the cable dragging structure of the box foundation, a through hole 6 for the cable 3 to pass through is provided on one side wall of the box foundation 4. The cable 3 dragging structure includes:

[0032] A wire mesh sleeve 2, which is connected to the dragging end of the cable 3;

[0033] A winch 1 for dragging the cable 3, and the steel wire rope of the winch 1 is connected to the wire mesh sleeve 2;

[0034] At least one fixed pulley 7 for guiding the cable 3, the cable 3 is wound around at least one of the fixed pulleys 7, all the fixed pulleys 7 are at the same elevation as the through hole 6, and at least one of the fixed pulleys 7 is directly opposite to the through hole 6;

[0035] A rolling member 5 for protecting the cable 3, the cable 3 is placed on the rolling member 5, and the rolling member 5 is connected at the contact position between the dragging design route of the cable 3 and the side wall of the box foundation 4.

[0036] By setting the wire mesh sleeve 2, a connection basis is provided for the dragging of the winch 1.

[0037] Specifically, as Figure 1 shown: When the cable 3 straddles the top of the box foundation 4, there is no need to set the fixed pulley 7, and only two rolling members 5 need to be set on the top of the box foundation 4 for the cable 3 to rest on, and the two rolling members 5 are located in the dragging direction of the cable 3.

[0038] By setting the two rolling members 5, when dragging the cable 3, the cable 3 does not directly contact the box foundation 4, avoiding the friction between the cable 3 and the side wall edges and corners of the box foundation 4, which not only damages the outer skin of the cable 3 but also damages the side wall edges and corners.

[0039] Preferably, when the passing direction of the cable 3 is the same as the dragging direction of the cable 3, and the positive projection of the passing direction and the positive projection of the dragging direction are on the same straight line, one fixed pulley 7 is provided. The fixed pulley 7 is connected to the bottom of the box foundation 4 and is located in the passing direction of the cable 3. The rolling member 5 is connected to the top of the side wall opposite to the side wall where the passing hole 6 is located. The positive projection of the connection line of the rolling member 5, the fixed pulley 7, and the passing hole 6 is on a straight line.

[0040] Specifically, as Figure 2 shown: The winch 1 is arranged on the side relatively far from the side wall where the passing hole 6 is located. The fixed pulley 7 rotates around the horizontal direction to drag the cable 3 in a Z shape.

[0041] By providing the fixed pulley 7, when the cable 3 needs to turn upwards, the turning route of the cable 3 is adjusted to avoid excessive turning amplitude of the cable 3 and friction with the passing hole 6, thereby damaging the outer skin of the cable 3.

[0042] Preferably, when the passing direction of the cable 3 is opposite to the dragging direction of the cable 3, and the positive projection of the passing direction and the positive projection of the dragging direction are on the same straight line, one fixed pulley 7 is provided. The fixed pulley 7 is connected to the bottom of the box foundation 4 and is located in the passing direction of the cable 3. The rolling member 5 is connected to the top of the side wall where the passing hole 6 is located and is directly above the passing hole 6. The positive projection of the connection line of the rolling member 5, the fixed pulley 7, and the passing hole 6 is on a straight line.

[0043] Specifically, as Figure 3 shown: The winch 1 is arranged on the side relatively close to the side wall where the passing hole 6 is located. The fixed pulley 7 rotates around the horizontal direction to drag the cable 3 in a C shape.

[0044] Adaptively change the position of the rolling member 5 according to the change of the dragging direction to protect the side wall edges and corners of the box foundation 4.

[0045] Preferably, when the passing direction of the cable 3 is opposite to the dragging direction of the cable 3, and the positive projection of the passing direction and the positive projection of the dragging direction are misaligned, two fixed pulleys 7 are provided. Both of the two fixed pulleys 7 are connected to the relative inner side of the side wall opposite to the side wall where the passing hole 6 is located. One of the fixed pulleys 7 is located in the passing direction of the cable 3, and the other fixed pulley 7 is located in the dragging direction of the cable 3. The rolling member 5 is connected to the top of the side wall where the passing hole 6 is located and is in the dragging direction of the cable 3. The positive projection of the connection line of the rolling member 5, the two fixed pulleys 7, and the passing hole 6 is in a U shape.

[0046] Specifically, as Figure 4As shown, the capstan 1 is arranged on a side relatively close to the side wall where the through hole 6 is located, and the two fixed pulleys 7 both rotate vertically to drag the cable 3 in a U-shape.

[0047] By providing two fixed pulleys 7 , the cable 3 is guided to the dragging direction, and friction between the cable 3 and the through hole 6 is avoided, thereby protecting the outer skin of the cable 3 .

[0048] Preferably, an embedded part for connecting the fixed pulley 7 is connected to the box-type foundation 4, and the fixed pulley 7 is detachably connected to the embedded part via a hook.

[0049] The fixed pulley 7 is arranged to be detachable for easy turnover. When the cable 3 is dragged, the cable 3 is wound around the fixed pulley 7 and is in a taut state. At this time, the fixed pulley 7 is connected to the embedded part by a hook and is not easy to fall off.

[0050] Preferably, a buffer belt is connected between the fixed pulley 7 and the embedded component, the buffer belt is connected to the embedded component, and the fixed pulley 7 is detachably connected to the buffer belt via a hook.

[0051] By providing the buffer belt, when the cable 3 is dragged, the buffer belt will adaptively deform to provide a reaction force, converting the rigid connection between the fixed pulley 7 and the embedded part into a flexible connection, thereby protecting the structure.

[0052] Preferably, the rolling element 5 is a pulley set.

[0053] By setting up the pulley block, the cable 3 is prevented from directly contacting the box-type foundation 4 , and the sliding friction is converted into rolling, thereby protecting the surface of the cable 3 .

[0054] A cable dragging method for a box foundation, comprising the steps of:

[0055] Step 1: Provide the cable dragging structure for the box foundation described above;

[0056] Step 2: Wind the cable 3 around at least one of the fixed pulleys 7 and place it on the rolling element 5;

[0057] Step 3: Start the winch 1 to drag the cable 3 .

[0058] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0059] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not used to limit the present invention. Any person skilled in the art, without departing from the scope of the technical solution of the present invention, can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A cable dragging structure for a box foundation, characterized in that A cable passing hole for the cable to pass through is provided on one side wall of the box foundation. The cable dragging structure includes: A wire mesh sleeve, which is connected to the dragging end of the cable; A winch for dragging the cable, and the steel wire rope of the winch is connected to the wire mesh sleeve; At least one fixed pulley for guiding the cable, the cable is wound around at least one of the fixed pulleys, and all the fixed pulleys are at the same elevation as the cable passing hole, and at least one of the fixed pulleys is directly opposite to the cable passing hole; A rolling member for protecting the cable, the cable is placed on the rolling member, and the rolling member is connected at the contact position between the dragging design route of the cable and the side wall of the box foundation.

2. The cable dragging structure for the box foundation according to claim 1, characterized in that When the passing direction of the cable is the same as the dragging direction of the cable, and the positive projection of the passing direction is on the same straight line as the positive projection of the dragging direction, one fixed pulley is provided, and the fixed pulley is connected to the bottom of the box foundation and is located in the passing direction of the cable. The rolling member is connected to the top of the opposite side wall of the side wall where the cable passing hole is located, and the positive projection of the connection line of the rolling member, the fixed pulley and the cable passing hole is on a straight line.

3. The cable dragging structure for the box foundation according to claim 1, characterized in that, When the passing direction of the cable is opposite to the dragging direction of the cable, and the positive projection of the passing direction is on the same straight line as the positive projection of the dragging direction, one fixed pulley is provided, and the fixed pulley is connected to the bottom of the box foundation and is located in the passing direction of the cable. The rolling member is connected to the top of the side wall where the cable passing hole is located and is directly above the cable passing hole, and the positive projection of the connection line of the rolling member, the fixed pulley and the cable passing hole is on a straight line.

4. The cable dragging structure for a box foundation according to claim 1, characterized in that, When the passing direction of the cable is opposite to the dragging direction of the cable, and the positive projection of the passing direction is misaligned with the positive projection of the dragging direction, two fixed pulleys are provided, and both fixed pulleys are connected to the relative inner side of the opposite side wall of the side wall where the cable passing hole is located. One of the fixed pulleys is located in the passing direction of the cable, and the other fixed pulley is located in the dragging direction of the cable. The rolling member is connected to the top of the side wall where the cable passing hole is located and is located in the dragging direction of the cable, and the positive projection of the connection line of the rolling member, the two fixed pulleys and the cable passing hole is U-shaped.

5. The cable dragging structure for a box foundation according to claim 1, characterized in that Embedded parts for connecting the fixed pulley are connected to the box foundation, and the fixed pulley is detachably connected to the embedded parts through a hook.

6. The cable dragging structure for a box foundation according to claim 5, characterized in that, A buffer belt is also connected between the fixed pulley and the embedded parts. The buffer belt is connected to the embedded parts, and the fixed pulley is detachably connected to the buffer belt through a hook.

7. The cable dragging structure for a box foundation according to claim 1, characterized in that, The rolling member is a pulley group.

8. A cable dragging method for a box foundation, characterized in that, It includes steps: Step 1: Provide the cable dragging structure for the box foundation as described in claim 1; Step 2: Wind the cable around at least one of the fixed pulleys and place it on the rolling member; Step 3: Start the winch to drag the cable.

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