Inhaul cable anchoring end protection cover convenient to observe and overhaul

Abstract

The utility model discloses an inhaul cable anchoring end protective cover convenient to observe and overhaul, which belongs to the technical field of engineering structure inhaul cable anchoring end protective covers, and comprises a cover body, the cover body comprises a cover body part and a connecting part, one end of the cover body part is of an opening structure and is connected with the connecting part, the connecting part is provided with at least two bolt holes, and the bolt holes are communicated with the cover body part. The other end of the cover body part is of a closed structure, an access hole is formed in the cover body part, and an observation window used for opening and closing the access hole is installed at the access hole. The inhaul cable anchoring end protection cover solves the problem that an existing inhaul cable anchoring end protection cover is inconvenient to carry out inhaul cable anchoring end maintenance work.

Description

Technical Field

[0001] The utility model relates to the technical field of protective covers for anchoring ends of cables of engineering structures, in particular to a protective cover for anchoring ends of cables which is convenient for observation and maintenance. Background Art

[0002] With the development of anchoring technology, cable systems are widely used in arch bridge hangers, cable stays and anti-drop beam devices. The safety and service life of such structures are directly related to the reliability and durability of the anchor end of the cable, and the corrosion of the anchor end directly affects its anchoring effect and reduces durability. For the anchor end of the cable system of the hanger and the inclined cable, corrosion will cause the prestress of the structural cable body to relax. Severe corrosion will lead to anchor failure, causing the force system of the entire bridge to change, and even cause the bridge to collapse. In earthquake zones, in order to prevent bridges from sliding off the supports during strong earthquakes, anti-drop beam devices are often installed on bridges to provide secondary protection for bridges. The anti-drop beam device does not work when the bridge is in normal working condition, and only works when a strong earthquake occurs. When the bridge is in normal working condition, the anti-drop beam device does not corrode, which is the premise for the anti-drop beam device to play its anti-drop role when a strong earthquake occurs.

[0003] Whether it is an arch bridge suspender, a cable-stayed bridge cable, an anti-falling beam device, or other structures using a cable system, a protective cover must be installed on the cable anchor end to prevent corrosive media such as water and moisture from directly entering the anchor end. However, bridges are in a humid environment, and as time goes by, corrosive media will inevitably enter the anchor end of the cable system, especially for the anti-falling beam device, whose connecting anchor cable can slide, and moisture will inevitably penetrate from the gap. Therefore, it is necessary to regularly dismantle the anchor end protective cover to check the corrosion and take necessary measures.

[0004] Traditional protective cover materials are mainly made of stainless steel. Due to its opacity, the corrosion of the anchor end cannot be directly observed, and the only option is to passively disassemble and inspect the cover. As a result, problems cannot be discovered in a timely manner, posing a safety hazard to the normal operation of the engineering structure.

[0005] Prior art CN 211689909 U proposes a transparent protective cover for the end of a cable-stayed cable, which includes a protective cover portion, the protective cover portion is a transparent organic glass tube, the sealed end of the transparent organic glass tube is transparent organic glass, and the open end of the transparent organic glass tube is provided with an annular metal connector. When in use, the connecting structure installed to the end of the cable-stayed cable through the annular metal connector, and the condition of the end of the cable-stayed cable can be observed through the transparent protective cover. However, during the use of the protective cover, when the end of the cable-stayed cable needs to be maintained, the entire protective cover portion needs to be removed, which is rather troublesome; in addition, after the protective cover portion is removed, a carrier needs to be placed, and in some special scenarios, there may not be a suitable position to place the protective cover portion; therefore, this type of protective cover structure is not conducive to the maintenance work of the cable-stayed cable end. Utility Model Content

[0006] The utility model provides a cable anchor end protection cover which is convenient for observation and maintenance. An inspection port is opened on the cover body, and an observation window for opening and closing the inspection port is provided at the inspection port, so as to facilitate inspection and maintenance, thereby solving the problem that the existing cable anchor end protection cover is inconvenient for carrying out cable anchor end maintenance work.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0008] A cable anchor end protective cover which is convenient for observation and maintenance comprises a cover body, wherein the cover body comprises a cover body portion and a connecting portion, wherein one end of the cover body portion is an open structure and is connected to the connecting portion, wherein the connecting portion is provided with at least two bolt holes, and the other end of the cover body portion is a closed structure, wherein the cover body portion is provided with an inspection opening, and an observation window for opening and closing the inspection opening is installed at the inspection opening.

[0009] Furthermore, the cover body is cylindrical, and the inspection port is provided at one end thereof away from the connecting portion.

[0010] Furthermore, the observation window comprises a frame and a transparent baffle arranged on the inner side of the frame, and the frame is movably connected to the cover body.

[0011] Furthermore, the transparent baffle is made of organic glass or acrylic.

[0012] Furthermore, a sealing ring is provided between the inspection port and the observation window.

[0013] Furthermore, the observation window is a rotating window, one side of the frame of which is hinged to the cover body through a hinge, and the opposite side of the frame is snap-connected to the cover body through a buckle.

[0014] As an optional method, the buckle includes a rotating clamping column and a clamping seat, the rotating clamping column is rotatably connected to the cover body through a rotating shaft, and the clamping seat is connected to the frame of the observation window and is provided with a bar hole for the rotating clamping column to pass through; when the rotating clamping column passes through the bar hole and intersects with the bar hole through rotation, the observation window is in a locked state.

[0015] As an optional manner, the observation window is a sliding window, and two slide rails are provided on the end surface of the cover body, and the frame of the observation window is slidably connected to the two slide rails on opposite sides.

[0016] As an optional manner, the cover body is conical.

[0017] As an optional manner, the observation window is arranged on the side of the cover body.

[0018] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0019] 1. The utility model provides an inspection port on the cover body of the cable anchor end protection cover, and provides an observation window for opening and closing the inspection port at the inspection port, so as to facilitate inspection and maintenance. When corrosion is found on the anchor end through the observation window, the observation window is opened, and a paint spraying and rust removal machine or a high-pressure sandblasting and rust removal machine is inserted through the inspection port to remove rust from the anchor end; at the same time, a perspective mirror can be inserted through the inspection port to conduct a more comprehensive inspection of the anchor end and timely discover the corrosion of the anchor end.

[0020] 2. The observation window of the utility model adopts a rotating window, a sliding window or other methods, which has the advantage of being easy to open and close, and is convenient for operators to quickly inspect and repair; in addition, after the observation window is opened, it does not need to be separated from the cover body and does not need to be placed separately, which is convenient for operators to operate.

[0021] 3. The utility model can be applied to different application scenarios. For the anchor ends of the suspenders and inclined cables, it is recommended to use a cylindrical protective cover (i.e., the cover body is cylindrical), and the anti-falling beam device is recommended to use a conical protective cover (i.e., the cover body is conical) according to the conical springs and buffers at the anchor ends. In order to facilitate observation and handling, the window openings of the suspenders, inclined cables, and anti-falling beam device protective covers should be selected at the ends. When the end area of ​​the anti-falling beam device protective cover is limited, it is possible to consider opening a window at a suitable position on the side of the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the cable anchor end protection cover proposed in Example 1 of the utility model;

[0023] Figure 2 A schematic diagram of the connection between the cable anchor end protection cover and the inclined cable anchor end proposed in Example 1 of the utility model;

[0024] Figure 3 A schematic diagram of the connection between the cable anchor end protection cover and the boom anchor end proposed in Example 1 of the utility model;

[0025] Figure 4 This is a schematic diagram of the installation of the observation window proposed in Example 2 of the utility model;

[0026] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0027] Figure 6 This is a schematic diagram of the installation of the observation window proposed in Example 3 of the utility model;

[0028] Figure 7 This is a schematic structural diagram of a cable anchor end protection cover proposed in Example 4 of the utility model;

[0029] Figure 8 This is a schematic diagram of the connection between the cable anchor end protection cover and the anchor end of the anti-falling beam device proposed in Example 4 of the utility model;

[0030] Fig. 9 This is a schematic structural diagram of a cable anchor end protection cover proposed in Example 5 of the utility model;

[0031] Among them, the markings in the attached drawings are: 1-cover body, 2-connecting part, 3-inspection port, 4-observation window, 5-sealing ring, 6-hinge, 7-buckle, 8-rotating clamping column, 9-rotating shaft, 10-seat, 11-strip hole, 12-slide rail. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0033] Example 1

[0034] like Figure 1-3 As shown, a cable anchor end protection cover that is easy to observe and repair includes a cover body, which includes a cover body portion 1 and a connecting portion 2. One end of the cover body portion 1 is an open structure and is connected to the connecting portion 2. The connecting portion 2 is provided with at least two bolt holes, and the other end of the cover body portion 1 is a closed structure. In this embodiment, the connecting portion 2 is provided with four bolt holes. When in use, it is installed on the connecting structure of the cable anchor end by four bolts.

[0035] The cover body 1 is provided with an inspection port 3, and an observation window 4 for opening and closing the inspection port 3 is installed at the inspection port 3. A sealing ring 5 is provided between the inspection port 3 and the observation window 4 to improve the sealing performance.

[0036] In this embodiment, the cover body 1 is cylindrical and is suitable for use on a hanger rod or an inclined cable anchor end. An inspection port 3 is provided at one end of the cover body 1 away from the connection portion 2 .

[0037] The observation window 4 comprises a frame and a transparent baffle plate arranged inside the frame, and the frame is movably connected to the cover body. The material of the transparent baffle plate is organic glass or acrylic.

[0038] In this embodiment, the observation window 4 is a rotating window, one side of its frame is hinged to the cover body 1 through a hinge 6, and the opposite side is snap-fitted to the cover body 1 through a buckle 7, and the material of the transparent baffle is organic glass.

[0039] The utility model provides an inspection port 3 on the cover body of the cable anchor end protection cover, and provides an observation window 4 for opening and closing the inspection port 3 at the inspection port 3, so as to facilitate inspection and maintenance. When corrosion of the anchor end is found through the observation window 4, the observation window 4 is opened, and a paint spraying and rust removal machine or a high-pressure sandblasting and rust removal machine is inserted through the inspection port 3 to remove rust from the anchor end; at the same time, a perspective mirror can be inserted through the inspection port 3 to conduct a more comprehensive inspection of the anchor end, so as to timely discover the corrosion of the anchor end.

[0040] Example 2

[0041] like Figure 4-5 As shown, on the basis of Example 1, the buckle 7 of this embodiment adopts the following structure: the buckle 7 includes a rotating clamping column 8 and a clamping seat 10, the rotating clamping column 8 is rotatably connected to the cover body 1 through a rotating shaft 9, the clamping seat 10 is connected to the frame of the observation window 4, and is provided with a strip hole 11 for the rotating clamping column 8 to pass through.

[0042] When the rotating clamp column 8 passes through the strip hole 11 and intersects with the strip hole 11 through rotation, the observation window 4 is in a locked state. When the observation window 4 needs to be unlocked, the rotating clamp column 8 is adjusted to be parallel to the strip hole 11, and the observation window 4 is flipped to open. In this embodiment, two buckles 7 are provided to improve the reliability and stability of the connection.

[0043] Example 3

[0044] like Figure 6 As shown, the difference between this embodiment and embodiment 1 lies in the installation method of the observation window 4. In this embodiment, the observation window 4 is a sliding window, and two slide rails 12 are provided on the end surface of the cover body 1, and the two opposite sides of the frame of the observation window 4 are respectively slidably connected to the two slide rails 12. By pushing and pulling the observation window 4, the opening and closing of the inspection port 3 is realized, which has the advantages of simple structure and convenient operation.

[0045] The observation window 4 of the utility model adopts a rotating window, a sliding window or other methods, which has the advantage of being easy to open and close, and is convenient for operators to quickly inspect and repair; in addition, after the observation window 4 is opened, it does not need to be separated from the cover body or placed separately, which is convenient for operators to operate.

[0046] Example 4

[0047] like Figure 7-8 As shown, the difference between this embodiment and embodiment 1 lies in the shape of the cover body 1. In this embodiment, the cover body 1 is conical, suitable for use in an anti-falling beam device, and the inspection port 3 is opened at the end of the cover body 1.

[0048] Example 5

[0049] like Fig. 9As shown, the difference between this embodiment and embodiment 4 lies in the position of the observation window 4. In this embodiment, the observation window 4 is arranged on the side of the cover body 1.

[0050] The utility model can be applied to different application scenarios. For the anchor ends of hangers and inclined cables, it is recommended to use a cylindrical protective cover (i.e., the cover body 1 is cylindrical), while the anti-falling beam device is recommended to use a conical protective cover (i.e., the cover body 1 is conical) based on the conical spring and buffer of the anchor end.

[0051] In order to facilitate observation and handling, the window openings of the hanger, inclined cable and anti-falling beam device protective cover should be selected at the ends. When the end area of ​​the anti-falling beam device protective cover is limited, it is possible to consider opening a window at a suitable position on the side of the cover body 1.

[0052] In other embodiments, if necessary, the entire cover body may be made of transparent material to better observe the corrosion of the anchor end.

[0053] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. A cable anchor end protection cover for easy observation and maintenance, comprising a cover body, the cover body comprising a cover body portion and a connecting portion, one end of the cover body portion is an open structure and is connected to the connecting portion, the connecting portion is provided with at least two bolt holes, and the other end of the cover body portion is a closed structure, characterized in that: The cover body is provided with an inspection opening, and an observation window for opening and closing the inspection opening is installed at the inspection opening.

2. The cable anchor end protective cover for easy observation and maintenance according to claim 1 is characterized in that: The cover body is cylindrical, and the inspection port is provided at one end thereof away from the connecting portion.

3. The cable anchor end protective cover for easy observation and maintenance according to claim 2 is characterized in that: The observation window comprises a frame and a transparent baffle arranged on the inner side of the frame, and the frame is movably connected to the cover body.

4. The cable anchor end protective cover for easy observation and maintenance according to claim 3 is characterized in that: The transparent baffle is made of organic glass or acrylic.

5. The cable anchor end protective cover for easy observation and maintenance according to claim 4 is characterized in that: A sealing ring is arranged between the inspection port and the observation window.

6. The cable anchor end protective cover for easy observation and maintenance according to claim 5, characterized in that: The observation window is a rotating window, one side of the frame of which is hinged to the cover body through a hinge, and the opposite side of the frame is clamped to the cover body through a buckle.

7. A cable anchor end protective cover for easy observation and maintenance according to claim 6, characterized in that: The buckle includes a rotating clamping column and a clamping seat. The rotating clamping column is rotatably connected to the cover body through a rotating shaft. The clamping seat is connected to the frame of the observation window and is provided with a bar hole for the rotating clamping column to pass through. When the rotating clamping column passes through the bar hole and intersects with the bar hole through rotation, the observation window is in a locked state.

8. The cable anchor end protective cover for easy observation and maintenance according to claim 5, characterized in that: The observation window is a sliding window, and the end surface of the cover body is provided with two slide rails, and the two opposite sides of the frame of the observation window are respectively slidably connected with the two slide rails.

9. The cable anchor end protective cover for easy observation and maintenance according to claim 1, characterized in that: The cover body is cone-shaped.

10. A cable anchor end protective cover for easy observation and maintenance according to claim 9, characterized in that: The observation window is arranged on the side of the cover body.

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