A cable clamp installation verticality inspection tool

Abstract

The application provides a cable clamp installation verticality inspection tool, comprising: an attachment piece for spanning both sides of the central axis of the cable clamp, the attachment piece comprising connecting holes arranged at both ends for temporarily mounting the screw head on both sides of the central axis of the cable clamp; and a vertical piece arranged on one side of the attachment piece for establishing a gravity reference on the attachment piece. The application establishes an inspection platform by relying on the cable clamp and the cable clamp installation verticality inspection tool, thereby realizing installation detection of the verticality of the cable clamp. Since the main cable zenith line has been lofted before the installation of the cable clamp, the inspection platform established based on the cable clamp can inspect the installation verticality of the cable clamp by referring to the main cable zenith line and a reference point on the axis symmetry center line of the cable clamp, and has high verticality inspection accuracy. Meanwhile, the verticality inspection of the cable clamp can be implemented only by using simple attachment pieces and vertical pieces, and has the advantages of simple operation process and low construction cost.

Description

Technical Field

[0001] This application relates to the field of cable clamp construction technology for suspension bridges, and more specifically, to a tooling for inspecting the verticality of cable clamp installation. Background Technology

[0002] Cable clamps are an important connection structure between the main cable and the stiffening girder bridge deck system. The working principle of cable clamps is that the tightening force of high-strength bolts tightly grips the main cable, thereby generating frictional resistance to balance the weight of the entire bridge span borne by the suspenders.

[0003] In existing technologies, the positioning of cable clamps requires the completion of the main cable construction. This necessitates first measuring the main cable alignment, the mileage and spacing of the tower tops on both banks, and the pre-offset of the cable saddles, then laying out the main cable zenith line in an empty cable state. Next, the coordinates of the intersection of the suspender centerline and the main cable centerline in the empty cable state, as well as the coordinates of the intersection of the suspender centerline and the main cable zenith line, are converted and used to calculate the cable clamp's position using a formula. This cable clamp positioning process requires the use of tools such as a total station and vernier calipers, making the operation cumbersome and reducing the efficiency of cable clamp construction. Utility Model Content

[0004] This application addresses the shortcomings of existing methods by proposing a clamp installation verticality inspection tool to solve the technical problems of cumbersome operation process, high equipment and instrument involvement, and slow construction.

[0005] This application provides a fixture for checking the verticality of cable clamp installation, including: An attachment for spanning both sides of the central axis of the cable clamp, the attachment including connecting holes at both ends for temporary installation of screw heads on both sides of the central axis of the cable clamp; A vertical member disposed on one side of the attachment is used to establish a gravity reference on the attachment.

[0006] Specifically, the main technical concept of this application lies in establishing an inspection platform based on cable clamps and a clamp installation verticality inspection fixture, thereby enabling the detection of the cable clamp installation verticality. Since the main cable zenith line has been laid out before cable clamp installation, the inspection platform established based on the cable clamps can refer to the main cable zenith line and a reference point—the cable clamp axisymmetric center line—to inspect the cable clamp installation verticality, achieving high accuracy in verticality inspection. Furthermore, the cable clamp verticality inspection can be implemented using only simple attachments and vertical fittings, offering advantages such as simple operation procedures and low construction costs.

[0007] Furthermore, the vertical component includes any one of a plumb bob, a laser, or a measuring ruler.

[0008] Furthermore, when the vertical member is configured as a plumb bob, the attachment member is provided with multiple mounting holes.

[0009] Furthermore, the attachment includes a counterweight disposed on its other side; The counterweight includes a sliding groove and a counterweight block that can be adjusted along the sliding groove.

[0010] Specifically, another technical concept of this application is to use an adjustable fitting part to balance and adjust the vertical member set on one side of the attachment so that the center of gravity of the cable clamp installation verticality inspection fixture provided in this application coincides with the central axis of the cable clamp, thereby avoiding the deviation in the establishment of gravity reference caused by the imbalance on both sides of the fixture, thus ensuring the reliability of the gravity reference provided by the cable clamp installation verticality inspection fixture and ensuring the inspection accuracy of the cable clamp verticality.

[0011] In some possible embodiments, at least one of the connecting holes is configured as an oblong hole that expands along both sides of the screw head. The oblong hole design allows the connecting hole to be adjusted according to the actual installation position of the cable clamp, providing the attachment with a certain installation allowance and facilitating its installation.

[0012] Furthermore, the attachment includes a horizontal bar, an attachment block, and a vertical seat; The horizontal bar is configured as a horizontal bar extending laterally; The attachment block is configured as a square piece for connecting to both ends of the horizontal bar, and the connecting hole is located in the middle of the square piece; The vertical seat is configured to extend outward along one end of the horizontal bar, or the vertical seat is configured to be temporarily connected to one end of the horizontal bar. The vertical seat is used to mount the vertical member.

[0013] Specifically, another technical concept of this application is to reduce the assembly difficulty of the attachment blocks by means of assembly.

[0014] Optionally, the central axis of the connecting hole is parallel to or perpendicular to the horizontal bar.

[0015] Specifically, another technical concept of this application is that, based on the assembly, the orientation of the connecting holes is adaptively adjusted according to the type of cable clamp, so that this application can be adapted to straddle-type cable clamps, horizontal pin-connected cable clamps and vertical pin-connected cable clamps, thus expanding the application scenarios of this application.

[0016] Furthermore, when the central axis of the connecting hole is parallel to the horizontal bar, the attachment block relative to the vertical seat is configured to have a degree of freedom to extend and retract laterally along the horizontal bar.

[0017] In some possible embodiments, the horizontal bar includes a sliding rail disposed on its inner wall and a spring disposed on the sliding rail; One end of the spring is fixed to the horizontal rod, and the other end is connected to the attachment block, which has a lateral extension and retraction degree of freedom, to provide a reaction force after the attachment block is stretched.

[0018] Specifically, this application achieves the recovery and stretching of the attachment block through the cooperation of springs and sliding rails.

[0019] In some possible embodiments, the vertical seat includes a vertical ruler; The vertical ruler passes through the connection point of the gravity reference and is vertically mounted on the attachment.

[0020] Specifically, another technical concept of this application is to use a vertical ruler as a vertical reference for the attachment rod itself. Theoretically, after the cable clamp is installed, the vertical ruler should coincide with the gravity reference. Therefore, based on the vertical ruler and the gravity reference, the verticality of the cable clamp can be pre-adjusted during installation to assist in adjusting the verticality of the cable clamp after installation, thereby improving the success rate of cable clamp installation and the efficiency of cable clamp adjustment.

[0021] The beneficial technical effects of the technical solutions provided in this application include: In the unloaded cable state, the main cable zenith line is first laid out, using it as a reference standard. Then, a verticality inspection fixture is set up using the cable clamps to establish a gravity reference. The verticality of the cable clamp installation is then inspected by comparing the main cable zenith line with the bottom center of the cable clamp. Since the lateral comparison involves the lateral distance between the bottom center of the cable clamp and the gravity reference, and the lateral distance between the main cable zenith line and the gravity reference, and the cable clamp, when in a vertical state, passes through both the main cable zenith line and the bottom center of the cable clamp, based on the principle that opposite sides of a quadrilateral are parallel and equal, it can be proven that the central axis of the cable clamp is parallel to the gravity reference, meaning the cable clamp is installed vertically relative to the main cable. Therefore, this application ensures the verticality accuracy of the cable clamp installation. Furthermore, the verticality inspection of the cable clamp in this application only requires the laying out of the main cable zenith line, the existing cable clamp positioning verticality inspection fixture, and the bottom center of the cable clamp as the inspection benchmark, without the need for excessive investment in measuring instruments. The operation process is convenient and quick, achieving both ensuring inspection accuracy and improving construction efficiency. In addition, this application also designs the structural composition of the perpendicularity inspection fixture, which has the advantages of low manufacturing cost and high operability, and simple and reliable use.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a cable clamp installation verticality inspection fixture provided in an embodiment of this application; Figure 2 A diagram illustrating the working state of a cable clamp installation verticality inspection fixture provided in an embodiment of this application; Figure 3 for Figure 2 A schematic diagram of direction A; Figure 4 A schematic diagram illustrating the installation state of the adjustment cable clamp relative to the main cable, provided in another embodiment of this application; Figure 5 A schematic diagram of the structure of the cable clamp installation verticality inspection fixture provided in another embodiment of this application; Reference numerals: 1. Cable clamp; 2. Verticality inspection fixture; 3. Main cable; 11. Bolt; 12. Ear; 111. Screw head; 21. Attachment; 22. Vertical component; 211. Horizontal bar; 212. Attachment block; 213. Vertical seat; 214. Counterweight end; 221. Plumb line; 222. Plumb bob; 223. Vertical ruler; 211a. Sliding rail; 211b. Spring; 212a. Connecting hole; 213a. Mounting hole; 214a. Sliding groove; 214b. Counterweight block. Detailed Implementation The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0024] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by this art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0026] This application mainly relates to a method for checking the verticality of cable clamp installation. The main technical concept is to establish a gravity reference based on the cable clamp, and then compare the bottom center of the cable clamp with the zenith line of the main cable. While maintaining accuracy, it can also simplify the operation complexity and difficulty of cable clamp installation, reduce construction costs and improve construction efficiency.

[0027] The research and development concept of this application includes: Since cable clamps are load-bearing structures that transfer bridge loads to the main girder through suspenders, the accuracy of their installation and positioning is crucial to determining whether the suspenders are in the correct position and whether the main cable is subjected to the designed stress after the bridge is completed. Therefore, this application first determines, based on the state of the cable clamp when it is correctly installed, that the line connecting the top center and the bottom center of the cable clamp should be vertical. However, since the installation of the cable clamp requires gripping the main cable tightly, it is impossible to directly measure the verticality of the line connecting the top center and the bottom center. This application establishes a gravity reference on one side of the cable clamp, with the main cable zenith line passing through the top of the cable clamp. Laying out the main cable zenith line is a necessary step in the installation of cable clamps for suspension bridges. The bottom center of the cable clamp can be located based on its lugs. Based on the existing main cable zenith line layout, by observing the parallel relationship between the line connecting the top and bottom centers of the cable clamp and the gravity reference during correct installation, it can be determined that the lateral distance between the gravity reference and the main cable zenith line and the lateral distance between the gravity reference and the bottom center of the cable clamp are equal and parallel. Therefore, when the lateral distance between the gravity reference and the main cable zenith line and the lateral distance between the gravity reference and the bottom center of the cable clamp are equal and parallel during installation, it can be determined that the cable clamp is correctly installed. This application achieves the measurement of the verticality of the cable clamp installation based on the above inference, thus having the advantages of high inspection accuracy, simple operation process, and low construction cost.

[0028] It's worth explaining that cable clamps are key load-bearing components of the superstructure of a suspension bridge, primarily used to clamp the main cable and connect it to the suspenders. A suspension bridge is a bridge whose superstructure consists mainly of cables (or steel chains) suspended from towers and anchored to both banks (or both ends of the bridge). The main cable is the load-bearing cable of the suspension bridge, composed of several prefabricated parallel strands. The suspenders are the components that transfer the load to the main cable. In a suspension bridge, several cable clamps are installed along the extension direction of the main cable, and then stiffening girders are connected to the cable clamps via corresponding suspenders, ensuring that the suspenders are installed under designed loads. Therefore, the correct installation of the cable clamps is crucial to whether the completed suspension bridge can bear the load as designed; that is, the verticality of the cable clamp installation directly affects the safety and performance of the suspension bridge.

[0029] The technical solution of this application and how it solves the above-mentioned technical problems are described in detail below with specific embodiments. It should be noted that the following embodiments can be referenced, borrowed, or combined with each other, and the same terms, similar features, and similar implementation steps in different embodiments will not be described again.

[0030] For a detailed explanation of the method for checking the verticality of cable clamp installation provided in this application, please refer to [link / reference]. Figure 1 This is a schematic diagram of the structure of the cable clamp 1 and the verticality inspection fixture 2 provided in an embodiment of this application.

[0031] Specifically, the verticality inspection fixture 2 for cable clamp 1 provided in this application includes attachments 21 spanning the axisymmetric sides of the cable clamp 1. Here, the axisymmetric direction of the cable clamp 1 refers to the axis of symmetry along the main cable 3 during actual construction and installation. The attachments 21 include a horizontal rod 211 configured as a laterally extending rod and attachment blocks 212. The horizontal rod 211 is used for horizontal support of the cable clamp 1. The attachment blocks 212 are configured as square blocks with a connecting hole 212a in the middle. The attachment blocks 212 are respectively connected to both ends of the horizontal rod 211, so that the connecting hole 212a can be used to fit the screw head 111 of the cable clamp 1. One end of the attachment 21 also extends outward to form a vertical seat 213, which is used to install a vertical member 22. The vertical member 22 forms a gravity reference under the action of gravity.

[0032] Optionally, the horizontal bar 211 is a standard square steel component or a standard steel plate component. It is worth understanding that since the horizontal bar 211 is used to provide a horizontal reference after being placed on the cable clamp 1, any component that can provide good levelness can be used to manufacture the horizontal bar 211 of this application.

[0033] Optionally, the horizontal bar 211 is made of 40 series square steel, such as square steel with a specification of 40mm×40mm×2.5mm.

[0034] Optionally, the attachment block 212 is a plate.

[0035] Optionally, the attachment block 212 is fixed to the horizontal bar 211 by welding, with its connecting hole 212a in an open state. That is, the connecting hole 212a is not directly opposite the horizontal bar 211, or it avoids the horizontal bar 211, so that the screw head 111 of the cable clamp 1 can be fitted through the connecting hole 212a. It is worth noting that when the horizontal bar 211 is a 40mm×40mm square steel plate, the attachment block 212 can be a 110mm×100mm steel plate. If the horizontal bar 211 is made of 50mm square steel, the size of the attachment block 212 will also be increased accordingly to keep the connecting hole 212a in an open state.

[0036] Optionally, the attachment block 212 can be integrated into the horizontal bar 211, meaning the connecting hole 212a is directly located in the horizontal bar 211. In fact, the advantage of a separate design for the horizontal bar 211 and attachment block 212 is the availability of materials and ease of welding and assembly. However, a one-piece design for the horizontal bar 211 and connecting hole 212a provides better integration, resulting in higher precision when the horizontal bar 211 is used as a horizontal support.

[0037] Optionally, the vertical seat 213 is an extension of the horizontal bar 211, protruding outward relative to the connecting hole 212a, for mounting the vertical member 22 on one side of the cable clamp 1 to establish a gravity reference.

[0038] Further, please refer to Figure 2 This is a diagram illustrating the working state of the cable clamp 1 installation verticality inspection fixture 2 provided in one embodiment of this application. The working principle of this application is as follows: The zenith line of the main cable 3 is laid out. Laying out the zenith line of the main cable 3 refers to the construction operation of laying out the main cable 3 in an "empty cable" state using instruments, etc., which can be understood based on existing technology regarding the laying out of the zenith line of the main cable 3. In reality, the zenith line of the main cable 3 passes through the top center of the cable clamp 1 after the bridge is completed. In this application, the zenith line of the main cable 3 is used as a reference for the top center of the cable clamp 1. Then, the cable clamp 1 is pre-installed on the main cable 3. Pre-installing the cable clamp 1 means that the cable clamp 1 is tightly gripped by the main cable 3 through the pre-tightening of the bolts 11 of the cable clamp 1. The process of hoisting the cable clamp 1 before pre-tightening the cable clamp 1 can be understood with reference to existing technology. After the cable clamp 1 is pre-tightened, a verticality inspection fixture 2 can be installed on top of the bolt 11 of the cable clamp 1, so that the verticality inspection fixture 2 spans both symmetrical sides of the cable clamp 1, that is, the horizontal rod 211 is horizontally supported on the top of the cable clamp 1 through the connecting hole 212a. A gravity reference is then established at one end of the verticality inspection fixture 2, that is, a vertical member 22 is installed on the vertical seat 213 to form a gravity reference. Therefore, this application can measure the lateral distance between the zenith line of the main cable 3 and the gravity reference using the gravity reference. and the lateral distance between the bottom center of cable clamp 1 and the gravity reference. Finally, through At that time, it is determined that the verticality of the cable clamp 1 meets the requirements. It is worth understanding that the top of the cable clamp 1 in this application refers to the upper part of the main cable 3. Therefore, this application uses a horizontal rod 211 spanning both axially symmetrical sides of the cable clamp 1 to form a horizontal reference parallel to the top of the cable clamp 1, and then establishes a gravity reference on one side of the horizontal reference. Since the zenith line of the main cable 3 passes through the top of the cable clamp 1, the lateral distance between the zenith line of the main cable 3 and the gravity reference can be measured. This allows for the measurement of the lateral distance between the gravity reference and the top center of cable clamp 1, as well as the lateral distance between the bottom center of cable clamp 1 and the gravity reference. Because, when cable clamp 1 is correctly installed, or when the verticality of cable clamp 1 meets the requirements, the line connecting the top and bottom of cable clamp 1 should be vertical, i.e., coincident with the direction of gravity. However, in this application, the gravity reference is established through gravity itself. Therefore, when the verticality of cable clamp 1 meets the requirements, the line connecting the top and bottom of cable clamp 1 is parallel to the gravity reference, meaning the distance between the two parallel lines is equal everywhere. Therefore, when At that time, the line connecting the top and bottom of cable clamp 1 can be reversed to be parallel to the gravity reference, that is... At that time, the verticality of cable clamp 1 met the requirements. Since the method for checking the verticality of cable clamp 1 provided in this application relies on cable clamp 1 itself, the zenith line of the main cable 3, gravity reference, and the quadrilateral theorem, it has high measurement accuracy and meets the installation requirements for the verticality of cable clamp 1. Furthermore, the verticality check of cable clamp 1 can be achieved simply by using the verticality check fixture 2, making the operation process simple and the construction cost low.

[0039] Optionally, when If the verticality of cable clamp 1 is not met, it can be determined that the installation verticality of cable clamp 1 does not meet the requirements. In this case, it is only necessary to adjust the installation state of cable clamp 1 relative to the main cable 3 and remeasure. and until This allows for adjustment of the verticality of cable clamp 1, ensuring that the verticality of cable clamp 1 meets the requirements.

[0040] Optionally, after the cable clamp 1 is secured to the main cable 3 during hoisting, it can be pre-tightened using the bolts 11. Since the cable clamp 1 is usually formed by two semi-circular frames, pre-tightening the bolts 11 allows the cable clamp 1 to enclose the main cable 3. Once the cable clamp 1 is enclosed to the main cable 3, it can be installed through the two connecting holes 212a onto the screw heads 111 of the two symmetrically distributed bolts 11, so that the horizontal bar 211 provides horizontal support to the top of the cable clamp 1. At this point, the vertical member 22 can be installed using the vertical support 213. The vertical member 22 includes any one of a plumb bob 222, an infrared laser, or a measuring ruler.

[0041] Optionally, Figure 2 Taking the plumb bob 222 as an example, the plumb bob 222 can be set in the mounting hole 213a on the vertical seat 213 through the plumb line 221. That is, one end of the plumb line 221 is fixed in the mounting hole 213a, and the other end is connected to the plumb bob 222, so that the plumb bob 222 hangs freely. This makes the plumb line 221 a concrete reference for gravity, and the distance between the plumb line 221 and the zenith line of the main cable 3 can be measured based on the plumb line 221, which is the lateral distance. The lateral distance is the distance between the vertical line 221 and the center of the bottom of the cable clamp 1. Meanwhile, this application selects the center of the ear 12 of the cable clamp 1 as the bottom center of the cable clamp 1. Since the ear 12 is the connecting part between the cable clamp 1 and the boom, its center has high machining accuracy and can be used as a reference for the bottom center of the cable clamp 1. Therefore, after completing and After measurement, through The verticality of the cable clamp 1 is judged by the measurement. It is worth noting that this application can also use an infrared laser or a measuring ruler to create a gravity reference for providing higher straightness accuracy. The selection of a plumb bob 222 is mainly due to its low cost and ease of operation. A plumb bob 222 is a tool used to measure the verticality of an object, typically made of metal.

[0042] Optionally, the other end of the attachment 21 opposite the vertical seat 213 is provided with a counterweight end 214. The counterweight end 214 protrudes outward from the attachment block 212 and includes a sliding groove 214a and a counterweight block 214b disposed in the sliding groove 214a. Since the plumb bob 222 has a certain mass, when it forms a gravity reference, a lever is formed due to the contact between the horizontal rod 211 and the cable clamp 1. Under the action of the lever, the horizontal rod 211 will tilt at the end away from the plumb bob 222, which may result in the horizontal rod 211 no longer being parallel to the cable clamp 1. When the horizontal rod 211 is not parallel to the cable clamp 1, it may cause the vertical line 221 to deviate, affecting the final inspection accuracy. Therefore, this application uses the counterweight end 214 to balance the plumb bob 222 so that the horizontal rod 211 is horizontally supported by the cable clamp 1, ensuring the accuracy of the gravity reference formed by the vertical line 221.

[0043] Optionally, the counterweight 214b can slide freely within the sliding groove 214a. Based on the lever principle, the counterweight end 214 can counterweight the plumb bob 222 of different masses, thereby improving the applicability of this application.

[0044] Further, please refer to Figure 3 for Figure 2 A schematic diagram of direction A. Viewed from above, the cable clamp 1 is installed and positioned using multiple sets of axisymmetric bolts 11. Therefore, the connecting hole 212a can be used to install and support any axisymmetric bolt 11's screw head 111.

[0045] Optionally, at least one connecting hole 212a in this application is configured as an oblong hole that expands along both sides of the screw head 111, combined with Figure 1 The left side and Figure 3 As can be seen from the lower side, the oval hole can increase the lateral allowance for the horizontal bar 211 to be installed on the cable clamp 1, thereby facilitating the installation of the horizontal bar 211.

[0046] Optionally, based on the explanation of the working principle of the cable clamp 1 adjustment, the perpendicularity inspection fixture 2 provided in this application also includes a vertical ruler 223, please refer to... Figure 2 A vertical ruler 223 is perpendicularly mounted to the horizontal rod 211 along the establishment point of the gravity reference, i.e., the vertical ruler is set along the mounting hole 213a, to provide vertical guidance for the horizontal rod 211. Since the horizontal rod 211 is parallel to the gravity reference after the cable clamp 1 is correctly installed, the vertical ruler 223, perpendicular to the horizontal rod 211, coincides with the gravity reference after the cable clamp 1 is correctly installed. In other words, the vertical ruler 223 coincides with the vertical line 221 after the cable clamp 1 is correctly installed. Therefore, the verticality of the cable clamp 1 can be coarsely adjusted using the vertical ruler 223 before installation, thereby improving the success rate of the cable clamp 1 installation. Furthermore, after the cable clamp 1 is installed, the angle between the vertical ruler 223 and the vertical line 221 can be achieved... The measurement of the angle allows the operator to rotate the cable clamp 1 based on the angle between the vertical ruler 223 and the vertical line 221, as well as the counterclockwise or clockwise direction of the angle deviation, thereby improving the success rate of cable clamp 1 adjustment and improving the verification efficiency.

[0047] Alternatively, please refer to Figure 4 This is a schematic diagram showing the installation state of the adjustment cable clamp 1 relative to the main cable 3, according to another embodiment of this application.

[0048] Specifically, after the cable clamp 1 is pre-tightened, there exists In this situation, it is necessary to adjust cable clamp 1. Figure 4 Using the dashed line of cable clamp 1 to It was characterized. Figure 4 In the middle, clamp 1 deviated in a clockwise direction. Angle, that is In this situation, it can be determined that the installation verticality of cable clamp 1 has deviated clockwise. Adjustment is made by rotating cable clamp 1 counterclockwise. Counterclockwise rotation of cable clamp 1 includes: loosening the bolt 11 on the side of cable clamp 1 away from the vertical member 22, and rotating cable clamp 1 towards that side to achieve fine adjustment. Mainly, cable clamp 1 rotates counterclockwise. Angle, i.e., reference Figure 5 Cable clamp 1 rotates to the left By adjusting the angle, the verticality of cable clamp 1 can be corrected. Similarly, if cable clamp 1 deviates counterclockwise... Angle, that is In this situation, it can be determined that the verticality of the cable clamp 1 has deviated counterclockwise. Adjustment is made by rotating the cable clamp 1 clockwise. Clockwise rotation of the cable clamp 1 includes: loosening the bolt 11 on the side of the cable clamp 1 facing the vertical member 22, and rotating the cable clamp 1 towards that side to achieve fine adjustment, mainly by rotating the cable clamp 1 to the right. By adjusting the angle, the verticality of the cable clamp 1 can be corrected.

[0049] Alternatively, please refer to Figure 5 This is a schematic diagram of the structure of the cable clamp 1 for installing the verticality inspection fixture 2, which is provided in another embodiment of this application.

[0050] Specifically, the cable clamp 1, based on its different structures, includes a straddle-type cable clamp 1, a transverse pin-connected cable clamp 1, and a vertical pin-connected cable clamp 1, and the positioning direction of the bolts 11 differs for different types of cable clamps 1. For example, in this application... Figure 1-4 The bolt 11 of the cable clamp 1 is installed vertically. For other types of cable clamps 1, the bolt 11 is installed horizontally. This can be understood by referring to the existing technology for different types of cable clamps 1. Figure 1-4 In this case, the central axis of the connecting hole 212a is perpendicular to the horizontal rod 211, for scenarios where the bolt 11 is installed vertically. And... Figure 5In the middle, the central axis of the connecting hole 212a is parallel to the horizontal bar 211, which is used for the scenario of bolt 11 being installed laterally. When bolt 11 is installed laterally, the attachment block 212 on the right side has the freedom to extend and retract laterally along the horizontal bar 211, as shown in the reference. Figure 5 As shown by the dashed line, the attachment block 212 is first stretched outward so that the connecting hole 212a can be clamped by the screw head 111. Then, the attachment block 212 retracts to achieve axially symmetrical clamping of the cable clamp 1 by the attachment blocks 212 at both ends. The working principle of the vertical member 22, the vertical seat 213, and the mounting end can still be referred to Figure 1 and 2 To understand.

[0051] Optionally, the horizontal bar 211 includes a sliding track 211a disposed on its inner wall and a spring 211b disposed on the sliding track 211a; one end of the spring 211b is fixed to the horizontal bar 211, and the other end is connected to an attachment block 212 with lateral extension and retraction degrees of freedom, for providing a reaction force after the attachment block 212 is stretched.

[0052] In summary, this application provides a method for checking the verticality of the cable clamp 1 installation. This method uses a horizontal rod 211 spanning both axially symmetrical sides of the cable clamp 1 to form a horizontal reference parallel to the top of the cable clamp 1. Then, a gravity reference is established on one side of the horizontal reference. Since the zenith line of the main cable 3 passes through the top of the cable clamp 1, the lateral distance between the zenith line of the main cable 3 and the gravity reference can be measured. This allows for the measurement of the lateral distance between the gravity reference and the top center of cable clamp 1, as well as the lateral distance between the bottom center of cable clamp 1 and the gravity reference. Because, when cable clamp 1 is correctly installed, or when the verticality of cable clamp 1 meets the requirements, the line connecting the top and bottom of cable clamp 1 should be vertical, i.e., coincident with the direction of gravity. However, in this application, the gravity reference is based on the gravity of plumb bob 222. Therefore, when the verticality of cable clamp 1 meets the requirements, the line connecting the top and bottom of cable clamp 1 is parallel to vertical line 221, meaning the distance between the two parallel lines is equal everywhere. Therefore, when At that time, the line connecting the top and bottom of cable clamp 1 can be reversed to be parallel to the vertical line 221, that is... At that time, the verticality of cable clamp 1 met the requirements. Since the method for checking the verticality of cable clamp 1 provided in this application relies on cable clamp 1 itself, the zenith line of the main cable 3, gravity reference, and the quadrilateral theorem, it has high measurement accuracy and meets the installation requirements for the verticality of cable clamp 1. Furthermore, the verticality check of cable clamp 1 can be achieved simply by using the verticality check fixture 2, making the operation process simple and the construction cost low.

[0053] Those skilled in the art will understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and solutions in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and solutions in related technologies that are similar to those disclosed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0054] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this application and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0057] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0058] The above description is only a partial implementation of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. A fixture for inspecting the verticality of cable clamp installation, characterized in that, include: An attachment for spanning both sides of the central axis of the cable clamp, the attachment including connecting holes at both ends for temporary installation of screw heads on both sides of the central axis of the cable clamp; A vertical member disposed on one side of the attachment is used to establish a gravity reference on the attachment.

2. The clamp installation verticality inspection fixture as described in claim 1, characterized in that, The gravity reference may be any one of a plumb bob, a laser, or a measuring ruler.

3. The clamp installation verticality inspection fixture as described in claim 2, characterized in that, When the vertical member is configured as a plumb bob, the attachment member is provided with multiple mounting holes.

4. The clamp installation verticality inspection fixture as described in claim 3, characterized in that, The attachment includes a counterweight disposed on its other side; The counterweight includes a sliding groove and a counterweight block that can be adjusted along the sliding groove.

5. The clamp installation verticality inspection fixture as described in claim 2, characterized in that, At least one of the connecting holes is configured as an oblong hole that expands along both sides of the screw head.

6. The clamp installation verticality inspection fixture as described in claim 1, characterized in that, The attachment includes a horizontal bar, an attachment block, and a vertical seat; The horizontal bar is configured as a horizontal bar extending laterally; The attachment block is configured as a square piece for connecting to both ends of the horizontal bar, and the connecting hole is located in the middle of the square piece; The vertical seat is configured to extend outward along one end of the horizontal bar, or the vertical seat is configured to be temporarily connected to one end of the horizontal bar. The vertical seat is used to mount the vertical member.

7. The clamp installation verticality inspection fixture as described in claim 6, characterized in that, The central axis of the connecting hole is parallel to or perpendicular to the horizontal rod.

8. The clamp installation verticality inspection fixture as described in claim 7, characterized in that, When the central axis of the connecting hole is parallel to the horizontal bar, the attachment block relative to the vertical seat is configured to have a degree of freedom to extend and retract laterally along the horizontal bar.

9. The clamp installation verticality inspection fixture as described in claim 7, characterized in that, The horizontal bar includes a sliding rail disposed on its inner wall and a spring disposed on the sliding rail; One end of the spring is fixed to the horizontal rod, and the other end is connected to the attachment block, which has a lateral extension and retraction degree of freedom, to provide a reaction force after the attachment block is stretched.

10. The fixture for checking the verticality of the cable clamp installation as described in claim 6, characterized in that, The vertical support includes a vertical ruler; The vertical ruler passes through the connection point of the vertical member and is vertically disposed on the attachment member.

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