Cable built-in shock absorber removal device

Abstract

The utility model relates to the technical field of bridge construction and dismantling devices, and in particular to a cable built-in shock absorber dismantling device. The dismantling device includes: a support assembly, a reaction force structure and a power assembly, wherein the support assembly is fixed to the top of the cable guide tube, the reaction force structure is fixedly connected to the support assembly, and the power assembly is installed between the reaction force structure and the inclined cable. The power assembly can apply a force to the inclined cable in a direction away from the axis of the cable guide tube to increase the distance between the built-in shock absorber installed inside the cable guide tube and the inclined cable. The cable built-in shock absorber dismantling device provided by the utility model effectively reduces the friction between the built-in shock absorber and the inclined cable and the cable guide tube, facilitates the rapid removal of the built-in shock absorber, and avoids damage to the cable guide tube caused by the built-in shock absorber during the dismantling process.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction and dismantling devices, in particular to a cable built-in shock absorber dismantling device. Background Art

[0002] Cable-stayed bridges have the advantages of large spanning capacity, low material consumption, simple construction and beautiful appearance. They have been widely and rapidly applied and developed in bridge construction at home and abroad. The cable system of a cable-stayed bridge is an important component of its structure and is responsible for bearing the main bridge load. However, as time goes by, due to the influence of environmental and driving factors during the actual operation period, the performance of the cable will significantly decline. In order to ensure the operational safety of the bridge structure, the cable needs to be replaced when necessary.

[0003] Before removing the old cable of the inclined cable, the built-in shock absorber needs to be removed in advance to facilitate the removal of the inclined cable. The built-in shock absorber is installed in the cable guide tube and fixed by a foaming agent, which is difficult to remove directly. The existing construction method is usually to use a hand winch to directly pull out the built-in shock absorber after removing the foaming agent. However, due to the large friction between the built-in shock absorber and the PE sleeve of the inclined cable and the cable guide tube, the removal process is difficult and sometimes even causes certain damage to the cable guide tube. Utility Model Content

[0004] The utility model aims to provide a device for removing a built-in shock absorber of a cable, so as to alleviate the problem that the friction between the built-in shock absorber and the inclined cable and the cable guide tube is large, the built-in shock absorber is not easy to remove, and the cable guide tube may be damaged during removal.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0006] A device for removing a built-in shock absorber in a cable comprises: a support assembly, a reaction force structure and a power assembly, wherein the support assembly is fixed to the top of a cable guide tube, the reaction force structure is fixedly connected to the support assembly, and the power assembly is installed between the reaction force structure and the inclined cable. The power assembly can apply a force to the inclined cable in a direction away from the axis of the cable guide tube to increase the distance between a built-in shock absorber installed inside the cable guide tube and the inclined cable.

[0007] Furthermore, the support assembly includes a first steel section and a second steel section arranged relatively on both sides of the cable guide tube, the first steel section and the second steel section are connected via a connecting assembly, and the reaction structure is fixedly connected to the first steel section.

[0008] Furthermore, the first section steel and the second section steel are both provided with connection holes, and the connection assembly connects the first section steel and the second section steel through the connection holes.

[0009] Furthermore, the connection assembly includes a connection piece and a fastener, and the connection piece passes through the connection holes correspondingly arranged on the first steel section and the second steel section, and is fastened by the fastener.

[0010] Furthermore, the connecting member is a screw and the fastening member is a nut.

[0011] Furthermore, the first steel section and the second steel section are connected via two groups of connection components.

[0012] Furthermore, the reaction force structure includes a reaction force block, the reaction force block is fixedly connected to the middle part of the first steel section, the reaction force block is provided with a reaction force inclined surface, and the power assembly is installed on the reaction force inclined surface.

[0013] Furthermore, the power assembly includes a hand jack, which is installed on the reaction force slope and is arranged opposite to the inclined cable.

[0014] Furthermore, the power assembly also includes a rocker, and the rocker is connected to the hand jack.

[0015] Furthermore, a gasket is provided between the hand jack and the inclined cable.

[0016] The utility model brings at least the following beneficial effects:

[0017] The utility model provides a device for removing a built-in shock absorber of a cable, comprising: a support assembly, a reaction force structure and a power assembly, wherein the support assembly is fixed to the top of the cable guide tube, the reaction force structure is fixedly connected to the support assembly, and the power assembly is installed between the reaction force structure and the inclined cable. The power assembly can apply a force to the inclined cable in a direction away from the axis of the cable guide tube to increase the distance between the built-in shock absorber installed inside the cable guide tube and the inclined cable.

[0018] Before removing the built-in shock absorber, first fix the support assembly on the top of the cable guide tube, then fix the reaction structure on the support assembly, then install the power assembly between the reaction structure and the inclined cable, and finally adjust the position of the removal device to ensure that the power assembly is facing the inclined cable and the support assembly is firmly fixed on the cable guide tube. The power assembly applies force to the inclined cable away from the axis of the cable guide tube, so that the distance between the built-in shock absorber installed inside the cable guide tube and the inclined cable is increased, so that when the built-in shock absorber is removed, the friction between the built-in shock absorber and the inclined cable and the cable guide tube is effectively reduced, which facilitates the rapid removal of the built-in shock absorber and avoids damage to the cable guide tube during the removal process. In addition, the cable built-in shock absorber removal device can flexibly adapt to different processes and construction conditions, has a simple structure, is easy to install, and can be widely used in various types of inclined cable replacement projects.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of a cable built-in shock absorber removal device after installation provided by an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of a cable built-in shock absorber removal device provided in an embodiment of the utility model.

[0023] icon:

[0024] 100-support assembly; 110-first steel section; 120-second steel section; 130-connector; 140-fastener; 200-reaction block; 300-power assembly; 310-hand jack; 320-rocker; 400-gasket; 500-cable guide tube; 600-stayed cable. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" 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 convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Physical quantities in formulas, if not separately marked, should be understood as basic quantities of the basic units of the International System of Units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0028] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The following is a detailed description of some embodiments of the present invention in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Figure 1 A schematic diagram of a cable built-in shock absorber removal device after installation provided by an embodiment of the utility model; Figure 2 A schematic diagram of a cable built-in shock absorber removal device provided in an embodiment of the utility model.

[0031] Embodiment 1

[0032] Before removing the old cable of the stay cable, the built-in shock absorber needs to be removed in advance to facilitate the removal of the stay cable. The built-in shock absorber is installed in the cable guide tube and fixed by a foaming agent, which is difficult to remove directly. The existing technology usually uses a hand winch to directly pull out the built-in shock absorber after removing the foaming agent. However, due to the large friction between the built-in shock absorber and the PE sleeve of the stay cable and the cable guide tube, the removal process is difficult and sometimes even causes certain damage to the cable guide tube.

[0033] In view of this, an embodiment of the utility model provides a device for removing a built-in shock absorber of a cable, comprising: a support assembly 100, a reaction structure and a power assembly 300, wherein the support assembly 100 is fixed to the top of the cable guide tube 500, the reaction structure is fixedly connected to the support assembly 100, and the power assembly 300 is installed between the reaction structure and the inclined cable 600. The power assembly 300 can apply a force to the inclined cable 600 in a direction away from the axis of the cable guide tube 500 to increase the distance between the built-in shock absorber installed inside the cable guide tube 500 and the inclined cable 600.

[0034] Before removing the built-in shock absorber, first fix the support assembly 100 on the top of the cable guide tube 500, then fix the reaction force structure on the support assembly 100, then install the power assembly 300 between the reaction force structure and the inclined cable 600, and finally adjust the position of the removal device to ensure that the power assembly 300 is facing the inclined cable 600 and the support assembly 100 is firmly fixed on the cable guide tube 500. The power assembly 300 applies a force to the inclined cable 600 away from the axial direction of the cable guide tube 500, so that the distance between the built-in shock absorber installed inside the cable guide tube 500 and the inclined cable 600 is increased, so that when the built-in shock absorber is removed, the friction between the built-in shock absorber and the inclined cable 600 and the cable guide tube 500 is effectively reduced, which facilitates the rapid removal of the built-in shock absorber and avoids the built-in shock absorber from damaging the cable guide tube 500 during the removal process. In addition, the cable built-in shock absorber removal device can flexibly adapt to different processes and construction conditions, has a simple structure, is easy to install, and can be widely used in various types of inclined cable 600 replacement projects.

[0035] In an optional manner of this embodiment, the support assembly 100 includes a first steel section 110 and a second steel section 120 relatively arranged on both sides of the cable guide tube 500. The first steel section 110 and the second steel section 120 are connected by a connecting assembly, and the reaction structure is fixedly connected to the first steel section 110.

[0036] See also Figure 1 The first steel section 110 and the second steel section 120 are fixed on both sides of the top of the cable guide tube 500. The first steel section 110 and the second steel section 120 are connected by a connecting assembly. The distance between the first steel section 110 and the second steel section 120 can be adjusted according to the size of different cable guide tubes 500, so that the cable guide tube 500 is stuck between the first steel section 110 and the second steel section 120, thereby improving the applicability of the removal device.

[0037] Furthermore, the first steel section 110 and the second steel section 120 are both provided with connection holes, and the connection assembly connects the first steel section 110 and the second steel section 120 through the connection holes.

[0038] The connecting hole passes through the side wall of one side of the first steel section 110 or the second steel section 120 to the side wall of the other side in the horizontal direction, and the connecting components pass through the connecting holes on the first steel section 110 and the connecting holes on the second steel section 120 respectively, thereby connecting and fixing the first steel section 110 and the second steel section 120.

[0039] Furthermore, the connection assembly includes a connection piece 130 and a fastener 140 . The connection piece 130 passes through connection holes correspondingly provided in the first steel section 110 and the second steel section 120 , and is fastened by the fastener 140 .

[0040] See also Figure 2 After the connecting member 130 passes through the corresponding connecting holes of the first steel section 110 and the second steel section 120, the connecting member 130 is fastened by the fastener 140 on one side of the first steel section 110, so that the first steel section 110 and the second steel section 120 are connected and fixed to form a whole.

[0041] Specifically, the connecting member 130 is a screw rod, and the fastener 140 is a nut. Of course, the connecting member 130 can also use other common parts, and the fastener 140 can also use other common fasteners 140, as long as they play the role of connection and fastening.

[0042] It should be noted that the first steel 110 and the second steel 120 are connected by two sets of connecting components. The advantage of this arrangement is that the connection between the first steel 110 and the second steel 120 is more stable and reliable, ensuring that the cable built-in shock absorber removal device can be used well after installation.

[0043] In an optional manner of this embodiment, the reaction structure includes a reaction block 200, which is fixedly connected to the middle of the first steel section 110. The reaction block 200 is provided with a reaction slope, and the power assembly 300 is installed on the reaction slope.

[0044] See also Figure 2 The reaction block 200 can be fixed on the first steel 110 by welding or other methods. The reaction slope is set on the side of the reaction block 200 facing the inclined cable 600. The setting of the reaction slope makes it easier for the reaction block 200 to transmit power in the reverse direction when it is subjected to force. When the power assembly 300 is subjected to force, the reaction block 200 is used to apply force to the inclined cable 600, thereby increasing the distance between the built-in shock absorber installed in the cable guide tube 500 and the inclined cable 600.

[0045] In an optional manner of this embodiment, the power assembly 300 includes a hand jack 310 , and the hand jack 310 is installed on the reaction force slope and is arranged opposite to the inclined cable 600 .

[0046] See also Figure 2The power assembly 300 can use a hand jack 310, which is directly opposite to the inclined cable 600, so as to apply force in real time. Of course, the power assembly 300 can also use a hydraulic device, etc., which is not limited here.

[0047] Furthermore, the power assembly 300 also includes a rocker 320 , and the rocker 320 is connected to the hand jack 310 .

[0048] See also Figure 2 One end of the rocker 320 is connected to the hand jack 310 , and the force applied to the hand jack 310 is achieved by manually controlling the rocker 320 .

[0049] In an optional manner of this embodiment, a gasket 400 is provided between the hand jack 310 and the inclined cable 600 .

[0050] See also Figure 1 The gasket 400 is preferably a rubber gasket 400, which is installed between the hand jack 310 and the inclined cable 600, and can play a buffering role when the hand jack 310 applies force to the inclined cable 600, thereby avoiding damage to the inclined cable 600.

[0051] The installation and use process of the cable built-in shock absorber removal device of this embodiment is as follows:

[0052] First, temporarily fix the first steel 110 and the second steel 120 to the outside of the top of the cable guide tube 500, pass the screw through the corresponding connection holes of the first steel 110 and the second steel 120, preliminarily adjust the positions of the first steel 110 and the second steel 120, and tighten the nut to fix the support assembly 100 on the cable guide tube 500. Then weld the reaction block 200 to the first steel 110, and then install the hand jack 310 and the rocker 320, and then install the gasket 400. Finally, adjust the position of the removal device to ensure that the hand jack 310 is facing the inclined cable 600 and the support assembly 100 is firmly fixed on the cable guide tube 500. By applying force to the hand jack 310 through the rocker 320, the force applied to the inclined cable 600 can be realized through the reaction block 200, and the distance between the built-in shock absorber installed inside the cable guide tube 500 and the inclined cable 600 is increased, which is convenient for the subsequent removal of the built-in shock absorber.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A device for removing a built-in shock absorber of a cable, characterized in that: include: A support assembly, a reaction structure and a power assembly, wherein the support assembly is fixed to the top of the cable duct, the reaction structure is fixedly connected to the support assembly, and the power assembly is installed between the reaction structure and the inclined cable. The power assembly can apply a force to the inclined cable in a direction away from the axis of the cable duct to increase the distance between the built-in shock absorber installed inside the cable duct and the inclined cable.

2. The cable built-in shock absorber removal device according to claim 1, characterized in that: The support assembly includes a first steel section and a second steel section that are relatively arranged on both sides of the cable guide tube. The first steel section and the second steel section are connected via a connecting assembly, and the reaction structure is fixedly connected to the first steel section.

3. The cable built-in shock absorber removal device according to claim 2, characterized in that: The first section steel and the second section steel are both provided with connection holes, and the connection assembly connects the first section steel and the second section steel through the connection holes.

4. The cable built-in shock absorber removal device according to claim 3, characterized in that: The connection assembly includes a connection piece and a fastener. The connection piece passes through the connection holes correspondingly arranged on the first steel section and the second steel section and is fastened by the fastener.

5. The cable built-in shock absorber removal device according to claim 4, characterized in that: The connecting piece is a screw rod, and the fastening piece is a nut.

6. The cable built-in shock absorber removal device according to claim 2, characterized in that: The first steel section and the second steel section are connected via two groups of connection components.

7. The cable built-in shock absorber removal device according to claim 2, characterized in that: The reaction force structure comprises a reaction force block, the reaction force block is fixedly connected to the middle part of the first steel section, the reaction force block is provided with a reaction force inclined surface, and the power assembly is installed on the reaction force inclined surface.

8. The cable built-in shock absorber removal device according to claim 7, characterized in that: The power assembly comprises a hand jack, which is installed on the reaction force inclined surface and is arranged opposite to the inclined cable.

9. The cable built-in shock absorber removal device according to claim 8, characterized in that: The power assembly also includes a rocker, and the rocker is connected to the hand jack.

10. The cable built-in shock absorber removal device according to claim 8, characterized in that: A gasket is arranged between the hand jack and the inclined cable.

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