Device and method for measuring height difference between upstream and downstream cable strands of ground anchor rotary cable suspension bridge

Abstract

The invention relates to the field of suspension bridge construction, and discloses a device and a method for measuring the height difference between upstream and downstream cable strands of a ground anchor rotary cable suspension bridge, and the device comprises cable strand clamping pieces which are respectively clamped on the upstream cable strand and the downstream cable strand; the transparent hose is filled with water; the cable strand clamping piece comprises a seat plate located below a cable strand; the left clamping ring and the right clamping ring are used for coating a cable strand; the opening and closing mechanism is mounted on the seat plate and used for unfolding and combining the left clamping ring and the right clamping ring; and the transparent hard tube is vertically fixed on the seat plate, and the end part of the transparent hose is inserted into the transparent hard tube. The two ends of the transparent hose are clamped on the upstream and downstream cable strands through the cable strand clamping piece, the upstream and downstream cable strands are associated through the transparent hose, the upstream and downstream cable strands are measured in a non-independent mode, the measurement precision and efficiency are remarkably improved, the liquid level height in the hose can be read through naked eyes, and the measurement accuracy is greatly improved. Configuration of technicians is reduced, and the operation process is simple.

Description

Technical Field

[0001] The present application relates to the field of suspension bridge construction, and in particular to a device and method for measuring the height difference between upstream and downstream cables of a ground-anchored rotary cable suspension bridge. Background Art

[0002] The main load-bearing component of a suspension bridge is the main cable, which is mainly used to bear the loads transmitted from the bridge deck and other structures, and transmit these loads to the anchoring system through the tower. There are hundreds of cables in the main cable. The upstream cable usually refers to the cable on the upstream side of the bridge deck, and the downstream cable usually refers to the cable on the downstream side of the bridge deck.

[0003] In the design and construction of suspension bridges, the height difference measurement of upstream and downstream cables is crucial because it is directly related to the line shape of the main cable and the overall stability of the bridge. By frequently and accurately measuring the height difference of upstream and downstream cables, it can be ensured that the main cable is accurately erected according to the design requirements, thereby ensuring the safety and function of the suspension bridge.

[0004] The upstream and downstream cables in a general suspension bridge are two independent main cables, which extend from the anchor at one end across the bridge tower to the anchor at the other end, and the two main cables do not interfere with each other. Therefore, when measuring the height difference of the upstream and downstream cables of a general suspension bridge, when adjusting the line shape of one cable, it will not affect the other cable. Therefore, the line shape can be adjusted at the measurement feature points of the upstream and downstream cables separately, and the upstream and downstream cables do not affect each other.

[0005] The anchored revolving cable suspension bridge is a revolving cable design, which is a special structural form of suspension bridge. Figure 1 As shown, the upstream cable strand 101 and the downstream cable strand 102 of the anchored revolving cable suspension bridge 100 ultimately form the same main cable. Figure 2 As shown, one end of the main cable is fixed by the anchor 1 on one side of the bridge head A end, then crosses the main cable saddle 1 on the bridge tower, and then passes through the three rotating cable saddles on the bridge head B end in sequence, so that the main cable rotates, and then crosses the main cable saddle 2 on the bridge tower, and finally fixed on the anchor 2 on the other side of the bridge head A end. Therefore, the upstream and downstream cables in the ground anchor revolving cable suspension bridge are interrelated and non-independent. When the linear adjustment of one cable strand is performed, the other cable strand will be partially affected. Therefore, the height difference measurement of the upstream and downstream cables of the general suspension bridge cannot be adapted to the height difference measurement of the upstream and downstream cables in the ground anchor revolving cable suspension bridge. Therefore, a method for measuring the height difference of the upstream and downstream cables of the ground anchor revolving cable suspension bridge is urgently needed. Summary of the invention

[0006] The present application solves the technical problem that the conventional method for measuring the height difference between upstream and downstream cables of a general suspension bridge cannot be applied to the measurement of the height difference between upstream and downstream cables of a revolving cable suspension bridge by providing a device and method for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge. The present application realizes the use of cable clamps to clamp the two ends of a transparent hose on the upstream and downstream cables, so that the upstream and downstream cables are connected through the transparent hose, and the measurement of the upstream and downstream cables is performed non-independently, and the measurement accuracy and efficiency are significantly improved. The liquid level in the hose can be read by the naked eye, which reduces the configuration of technical personnel and simplifies the operation process.

[0007] The present application provides a device for measuring the height difference of upstream and downstream cables of a ground anchor revolving cable suspension bridge, comprising: two cable strand clamps, which are respectively clamped on the upstream cable strand and the downstream cable strand; a transparent hose, which is open at both ends and has water in the hose; wherein the cable strand clamp comprises: a seat plate, which is located below the cable strand and parallel to the cable strand when the cable strand clamp is clamped to the cable strand; a left clamp ring and a right clamp ring, which are combined to form a hexagonal ring and are used to wrap around the cable strand; an opening and closing mechanism, which is installed on the seat plate and is used to expand and merge the left clamp ring and the right clamp ring; a transparent hard tube, which is vertically fixed to the seat plate, wherein the outer surface of the transparent hard tube is provided with scale lines, wherein the axis of the transparent hard tube when the cable strand clamp is clamped to the cable strand passes through the center line of the cable strand, the end of the transparent hose is inserted into the transparent hard tube, and the liquid level of the transparent hose is located within the scale lines of the transparent hard tube.

[0008] Furthermore, the opening and closing mechanism includes: a bracket plate, fixed to the seat plate; a left swing plate, composed of two plates and a clamp of 120 degrees, and one end of the left swing plate is hinged to the bracket plate, and the left clamp ring is fixed to the inner wall of the left swing plate; a right swing plate, composed of two plates and a clamp of 120 degrees, and one end of the right swing plate is hinged to the bracket plate, the right swing plate and the left swing plate are symmetrically arranged, and the right clamp ring is fixed to the inner wall of the right swing plate; a left hydraulic support rod, one end of which is hinged to the seat plate, and the other end is hinged to the left swing plate; a right hydraulic support rod, one end of which is hinged to the seat plate, and the other end is hinged to the right swing plate; wherein the left hydraulic support rod and the right hydraulic support rod are symmetrically arranged, and the opening and closing mechanism is in a merged state when the left hydraulic support rod and the right hydraulic support rod are in a contracted state, and the opening and closing mechanism is in an expanded state when the left hydraulic support rod and the right hydraulic support rod are in a contracted state.

[0009] Furthermore, the opening and closing mechanism also includes: a left gasket, which is fixed on the inner wall of the left swing plate, and there is a gap between one end of the left gasket close to the hinged end of the left swing plate and the end of the hinged end of the left swing plate, and the left clamp ring is fixed on a side wall of the left gasket away from the left swing plate; a right gasket, which is fixed on the inner wall of the left swing plate, and there is a gap between one end of the right gasket close to the hinged end of the right swing plate and the end of the hinged end of the right swing plate, and the right clamp ring is fixed on a side wall of the right gasket away from the right swing plate.

[0010] Furthermore, a through hole is provided on the seat plate, the transparent hard tube is inserted into the through hole, and an interference fit is formed between the transparent hard tube and the through hole.

[0011] Furthermore, two bracket plates are provided and are symmetrically arranged on both sides of the seat plate, and an articulated shaft rod is inserted between the two bracket plates. A left articulated ring is integrally formed at the end of one end of the left swing plate, and the articulated shaft rod passes through the left articulated ring. A right articulated ring is integrally formed at the end of one end of the right swing plate, and the articulated shaft rod passes through the right articulated ring.

[0012] Furthermore, a plurality of strip grooves are provided on the surface of the left clamp ring and the right clamp ring that are in contact with the cable strand, and the length direction of the strip grooves when the cable strand clamp is in a state of clamping the cable strand is consistent with the length direction of the cable strand.

[0013] The present application also provides a method for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge, using the device for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge as described above, and the measuring method comprises: installing cable clamps at the measurement feature points of the upstream cable and the downstream cable, respectively; inserting the two ends of a transparent hose into transparent hard tubes in the cable clamps on the upstream cable and the downstream cable, respectively; reading the liquid level height values ​​at the two ends of the transparent hose according to the scale lines on the transparent hard tube; and calculating the height difference between the upstream and downstream cables according to the liquid level height values ​​at the two ends of the transparent hose.

[0014] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0015] Due to the use of two cable strand clamps with scales and a transparent hose, the operator only needs to clamp the two cable strand clamps on the upstream cable strand and the downstream cable strand, and the liquid levels at both ends of the transparent hose are located in the transparent hard tubes of the cable strand clamps on both sides. The scale lines at both ends of the transparent hose in the transparent hard tubes on both sides are recorded to record the liquid level. The measurement process does not require the use of a ruler, and does not require multiple people to operate, which reduces the configuration of technical personnel and makes the operation process simple. In addition, by using the two cable strand clamps to clamp the two ends of the transparent hose on the upstream and downstream cable strands, the upstream and downstream cable strands are connected through the transparent hose, which solves the technical problem that the height difference measurement method of the upstream and downstream cables of the general suspension bridge in the prior art cannot be applied to the height difference measurement of the upstream and downstream cables of the rotary cable suspension bridge, and the measurement accuracy and efficiency are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a ground-anchored revolving cable suspension bridge in an embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of the traction travel route of the main cable on the anchored revolving cable suspension bridge in the embodiment of the present application;

[0018] Figure 3 It is a schematic diagram of a device for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge in Example 1 of the present application;

[0019] Figure 4 Schematic diagram of the cable strand clamp in the first embodiment of the present application;

[0020] Figure 5 for Figure 4 An exploded schematic diagram of the middle structure mainly illustrates the connection structure between the left swing plate, the right swing plate and the bracket plate;

[0021] Figure 6 A schematic flow chart of a method for measuring the height difference between upstream and downstream cables of a ground-anchored rotary cable suspension bridge in Embodiment 2 of the present application;

[0022] In the figure: 100, anchor revolving cable suspension bridge; 101, upstream cable strand; 102, downstream cable strand; 1, cable strand clamp; 11, seat plate; 111, through hole; 12, left clamp ring; 13, right clamp ring; 1230, strip groove; 14, opening and closing mechanism; 141, bracket plate; 142, left swing plate; 1421, left hinged ring; 143, right swing plate; 1431, right hinged ring; 144, left hydraulic support rod; 145, right hydraulic support rod; 146, left gasket; 147, right gasket; 148, hinged shaft rod; 15, transparent hard tube; 151, horizontal bubble column; 2, transparent hose. DETAILED DESCRIPTION

[0023] The embodiment of the present application discloses a device and method for measuring the height difference between upstream and downstream strands of a ground anchor revolving cable suspension bridge. The measuring process is to clamp two strand clamps 1 onto an upstream strand 101 and a downstream strand 102, respectively, and then insert two ends of a transparent hose 2 with water into transparent hard tubes 15 in the strand clamps 1 on the upstream strand 101 and the downstream strand 102, respectively. After the liquid level in the transparent hose 2 is stable and the bubbles in the horizontal bubble column 151 in the transparent hard tube 15 are in a horizontal state, the liquid level can be recorded according to the scale line on the transparent hose 2, thereby realizing the measurement of the height difference between the upstream strand 101 and the downstream strand 102. The measuring process does not require the use of a ruler, and since the upstream and downstream strands are associated through the transparent hose 2, the technical problem that the method for measuring the height difference between the upstream and downstream strands of a general suspension bridge in the prior art cannot be applied to the measurement of the height difference between the upstream and downstream strands of a revolving cable suspension bridge is solved, and the measurement accuracy and efficiency are significantly improved.

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Embodiment 1:

[0026] Reference Figure 1 and Figure 3 , a device for measuring the height difference of upstream and downstream cables of a ground-anchored revolving cable suspension bridge comprises a cable strand clamp 1 and a transparent hose 2. Two cable strand clamps 1 are provided, and the two cable strand clamps 1 are respectively used to clamp to an upstream cable strand 101 and a downstream cable strand 102 of a ground-anchored revolving cable suspension bridge 100. Water is contained in the transparent hose 2, and both ends of the transparent hose 2 are open, and both ends of the transparent hose 2 are respectively fixed on the two cable strand clamps 1. In specific implementation, a technician can stand on a catwalk under the cable strand to install the cable strand clamp 1 on the cable strand. A catwalk is also connected between the catwalk under the upstream cable strand 101 and the catwalk under the downstream cable strand 102, so that the technician can shuttle between the upstream cable strand 101 and the downstream cable strand 102, which is also convenient for the technician to operate.

[0027] Reference Figure 4 and Figure 5The cable strand clamp 1 includes a seat plate 11 , a left clamp ring 12 , a right clamp ring 13 , an opening and closing mechanism 14 , and a transparent hard tube 15 . The seat plate 11 is a strip plate, and a through hole 111 is opened in the middle of the seat plate 11, and the through hole 111 is a round hole. The transparent hard tube 15 is inserted in the through hole 111, and the transparent hard tube 15 and the through hole 111 are interference fit. The two ends of the transparent hard tube 15 are open, and the two ends of the transparent hard tube 15 are respectively located on both sides of the seat plate 11, and the length of the transparent hard tube 15 on one side of the seat plate 11 is much larger than that on the other side. The transparent hard tube 15 is engraved with scale lines, and the opening and closing mechanism 14 is installed on one side of the seat plate 11 and is located on the side with a smaller length of the transparent hard tube 15. The end of the transparent hose 2 is inserted in the transparent hard tube 15 on the longer side of the seat plate 11, and the liquid level of the transparent hose 2 is located within the scale lines of the transparent hard tube 15, and a horizontal bubble column 151 is installed at one end of the transparent hard tube 15, and the horizontal bubble column 151 is located between the seat plate 11 and the opening and closing mechanism 14.

[0028] Continue to refer to Figure 4 and Figure 5The opening and closing mechanism 14 includes a support plate 141, a left swing plate 142, a right swing plate 143, a left hydraulic support rod 144, a right hydraulic support rod 145, a left gasket 146, a right gasket 147 and a hinge shaft rod 148. The support plate 141 is in a U shape, and the support plate 141 is provided with two pieces, and the two support plates 141 are symmetrically arranged on both sides of the length direction of the seat plate 11, and the through hole 111 is located between the two support plates 141, and the hinge shaft rod 148 is rotatably arranged between the two support plates 141, and the length direction of the hinge shaft rod 148 is perpendicular to the length direction of the seat plate 11. The left swing plate 142 and the right swing plate 143 are both composed of two plates, and the angle between the two plates is 120 degrees. The left swing plate 142 and the right swing plate 143 are respectively located on both sides of the hinge shaft 148. The end of one end of the left swing plate 142 is integrally formed with a left hinge ring 1421. The axial direction of the left hinge ring 1421 is consistent with the width direction of the left swing plate 142. The hinge shaft 148 passes through the left hinge ring 1421. A right hinge ring 1431 is integrally formed at the end portion of one end, and the axial direction of the right hinge ring 1431 is consistent with the width direction of the right swing plate 143. The hinge shaft 148 passes through the right hinge ring 1431. The left swing plate 142 and the right swing plate 143 can be hinged on the hinge shaft 148 by using the left hinge ring 1421 and the right hinge ring 1431, so that the left swing plate 142 and the right swing plate 143 can swing up and down on the bracket plate 141. One end of the left hydraulic support rod 144 is hinged to the seat plate 11, and the other end is hinged to the left swing plate 142; one end of the right hydraulic support rod 145 is hinged to the seat plate 11, and the other end is hinged to the right swing plate 143. When the left hydraulic support rod 144 and the right hydraulic support rod 145 are in an extended state, the left swing plate 142 and the right swing plate 143 are in a merged state; when the left hydraulic support rod 144 and the right hydraulic support rod 145 are in a contracted state, the left swing plate 142 and the right swing plate 143 are in an expanded state.

[0029] Continue to refer to Figure 4 and Figure 5The left gasket 146 is fixed on the inner wall of the left swing plate 142, one end of the left gasket 146 is flush with the end surface of the left swing plate 142 away from the hinge shaft 148, and there is a gap between the end of the left gasket 146 close to the hinge end of the left swing plate 142 and the end of the hinge end of the left swing plate 142. The right gasket 147 is fixed on the inner wall of the left swing plate 142, one end of the right gasket 147 is flush with the end surface of the right swing plate 143 away from the hinge shaft 148, and the right gasket 147 is close to the right swing plate 143. There is a spacing between one end of the hinged end of 43 and the end of the hinged end of the right swing plate 143, the left clamp ring 12 is fixed to the side wall of the left gasket 146 away from the left swing plate 142, and the right clamp ring 13 is fixed to the side wall of the right gasket 147 away from the right swing plate 143. The left clamp ring 12 and the right clamp ring 13 can form a hexagonal ring when combined. Therefore, under the limiting effect of the left gasket 146 and the right gasket 147, the left clamp ring 12 and the right clamp ring 13 will not interfere with the components on the opening and closing mechanism 14 when combined.

[0030] In addition, a plurality of strip grooves 1230 are provided on the side of the left clamping ring 12 and the right clamping ring 13 that are in contact with the cable strand. The length direction of the strip grooves 1230 is consistent with the width direction of the clamping ring. The plurality of strip grooves 1230 are equidistantly arranged. When the cable strand clamping member 1 is clamped to the cable strand, the length direction of the strip grooves 1230 is consistent with the length direction of the cable strand. Thus, the left clamping ring 12 and the right clamping ring 13 can be clamped on the cable strand more stably.

[0031] The functional principle of the first embodiment can be explained by the following operation mode:

[0032] During the construction of the anchor revolving cable suspension bridge 100, when it is necessary to measure the height difference of the upstream cable strand 101 and the downstream cable strand 102 on the anchor revolving cable suspension bridge 100, the technician stands on the catwalk and clamps the two cable strand clamps 1 to the upstream cable strand 101 and the downstream cable strand 102 respectively. When operating the cable strand clamp 1, the cable strand clamp 1 is placed under the cable strand, and then the left clamp ring 12 and the right clamp ring 13 are opened. Then, the cable strand clamp 1 is moved upward and the cable strand passes between the left clamp ring 12 and the right clamp ring 13, and then the left clamp ring 12 and the right clamp ring 13 are merged. Under the action of the left hydraulic support rod 144 and the right hydraulic support rod 145, the left clamp ring 12 and the right clamp ring 13 can be clamped to the cable strand. At this time, the transparent hard tube 15 on the cable strand clamp 1 is located under the cable strand.

[0033] Afterwards, the two ends of the transparent hose 2 with water are respectively inserted into the transparent hard tube 15 in the cable strand clamping piece 1 on the upstream cable strand 101 and the downstream cable strand 102, and the bubbles in the horizontal bubble column 151 in the transparent hard tube 15 are ensured to be in a horizontal state to ensure the verticality of the transparent hose 2. Afterwards, when the liquid level in the transparent hose 2 is stable, the liquid level height can be recorded according to the scale line on the transparent hose 2, thereby realizing the measurement of the height difference between the upstream cable strand 101 and the downstream cable strand 102. The measurement process does not require the use of a ruler, and does not require multiple people to operate, which reduces the configuration of technical personnel and has a simple operation process. In addition, because the two ends of the transparent hose 2 are clamped on the upstream and downstream cable strands by using the two cable strand clamping pieces 1, the upstream and downstream cable strands are connected through the transparent hose 2, which solves the technical problem that the height difference measurement method of the upstream and downstream cable strands of the general suspension bridge in the prior art cannot be applied to the height difference measurement of the upstream and downstream cable strands of the rotary cable suspension bridge, and the measurement accuracy and efficiency are significantly improved.

[0034] Embodiment 2:

[0035] Reference Figure 6 The present application also provides a method for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge, and adopts a device for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge in an embodiment.

[0036] Measurement methods include:

[0037] S1, install the cable strand clamp.

[0038] In a specific implementation, two strand clamps 1 are prepared and installed at the measurement feature points of the upstream strand 101 and the downstream strand 102, respectively. The installation process of the strand clamp 1 can refer to the description of the first embodiment above and will not be repeated here.

[0039] S2, connect the transparent hose.

[0040] In a specific implementation, both ends of the transparent hose 2 are respectively inserted into the transparent hard tubes 15 in the cable strand clamping members 1 on the upstream cable strand 101 and the downstream cable strand 102, and the transparent hose 2 is made into a U shape.

[0041] S3, liquid level reading.

[0042] In a specific implementation, the liquid level values ​​at both ends of the transparent hose 2 are read respectively according to the scale lines on the transparent rigid tube 15 , and before reading the liquid level value, it is ensured that the bubbles in the horizontal bubble column 151 in the transparent rigid tube 15 are in a horizontal state to ensure the verticality of the transparent hose 2 .

[0043] S4, calculate the height difference between the upstream and downstream cables.

[0044] In a specific implementation, the height difference between the upstream and downstream strands is calculated according to the liquid level values ​​at both ends of the transparent hose 2 .

[0045] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0046] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A device for measuring the height difference between the upstream and downstream cables of a ground-anchored revolving cable suspension bridge, characterized in that: include: Two cable strand clamping members (1) are provided and are clamped on the upstream cable strand (101) and the downstream cable strand (102) respectively; A transparent hose (2) with openings at both ends and water in the hose; Wherein, the cable strand clamp (1) comprises: A seat plate (11), wherein the seat plate (11) is located below the cable strand and parallel to the cable strand when the cable strand clamping member (1) clamps the cable strand; The left clamping ring (12) and the right clamping ring (13) are combined to form a hexagonal ring and used to wrap around the cable strand; An opening and closing mechanism (14) is installed on the seat plate (11) and is used for expanding and merging the left clamping ring (12) and the right clamping ring (13); A transparent rigid tube (15) is vertically fixed on the seat plate (11), the outer surface of the transparent rigid tube (15) is provided with scale lines, a horizontal bubble column (151) is provided in the transparent rigid tube (15), the axis of the transparent rigid tube (15) in the state where the cable strand clamp (1) clamps the cable strand passes through the center line of the cable strand, the end of the transparent hose (2) is inserted into the transparent rigid tube (15), and the liquid level of the transparent hose (2) is located within the scale lines of the transparent rigid tube (15).

2. The device for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge according to claim 1, characterized in that: The opening and closing mechanism (14) comprises: A bracket plate (141) fixed on the seat plate (11); The left swing plate (142) is composed of two plates and the clamp is 120 degrees, and one end of the left swing plate (142) is hinged on the bracket plate (141), and the left clamp ring (12) is fixed on the inner side wall of the left swing plate (142); The right swing plate (143) is composed of two plates and the clamp is 120 degrees, and one end of the right swing plate (143) is hinged on the bracket plate (141), the right swing plate (143) and the left swing plate (142) are symmetrically arranged, and the right clamp ring (13) is fixed on the inner side wall of the right swing plate (143); A left hydraulic support rod (144), one end of which is hinged to the seat plate (11), and the other end of which is hinged to the left swing plate (142); A right hydraulic support rod (145), one end of which is hinged to the seat plate (11), and the other end of which is hinged to the right swing plate (143); The left hydraulic support rod (144) and the right hydraulic support rod (145) are symmetrically arranged, and when the left hydraulic support rod (144) and the right hydraulic support rod (145) are in an extended state, the opening and closing mechanism (14) is in a combined state, and when the left hydraulic support rod (144) and the right hydraulic support rod (145) are in a contracted state, the opening and closing mechanism (14) is in an expanded state.

3. The device for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge according to claim 2, characterized in that: The opening and closing mechanism (14) further comprises: A left gasket (146) is fixed on the inner wall of the left swing plate (142), and a gap is formed between an end of the left gasket (146) close to the hinged end of the left swing plate (142) and an end of the hinged end of the left swing plate (142), and the left clamp ring (12) is fixed on a side wall of the left gasket (146) facing away from the left swing plate (142); The right gasket (147) is fixed on the inner wall of the left swing plate (142), and there is a distance between the end of the right gasket (147) close to the hinge end of the right swing plate (143) and the end of the hinge end of the right swing plate (143), and the right clamp ring (13) is fixed on a side wall of the right gasket (147) facing away from the right swing plate (143).

4. The device for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge according to claim 2, characterized in that: The seat plate (11) is provided with a through hole (111), the transparent hard tube (15) is inserted into the through hole (111), and an interference fit is formed between the transparent hard tube (15) and the through hole (111).

5. The device for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge according to claim 2, characterized in that: The support plates (141) are provided with two and are symmetrically arranged on both sides of the seat plate (11), and a hinge shaft (148) is inserted between the two support plates (141). The end of one end of the left swing plate (142) is integrally formed with a left hinge ring (1421), and the hinge shaft (148) passes through the left hinge ring (1421). The end of one end of the right swing plate (143) is integrally formed with a right hinge ring (1431), and the hinge shaft (148) passes through the right hinge ring (1431).

6. The device for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge according to claim 1, characterized in that: A plurality of strip grooves (1230) are provided on the sides of the left clamping ring (12) and the right clamping ring (13) that are in contact with the cable strand, and the length direction of the strip grooves (1230) when the cable strand clamping member (1) is in a state of clamping the cable strand is consistent with the length direction of the cable strand.

7. A method for measuring the height difference between upstream and downstream cables of a ground-anchored revolving cable suspension bridge, characterized in that: Using the device for measuring the height difference between upstream and downstream strands of a ground-anchored revolving cable suspension bridge according to any one of claims 1 to 6, the measuring method comprises: Installing cable strand clamps (1) at the measurement feature points of the upstream cable strand and the downstream cable strand respectively; Inserting the two ends of the transparent hose (2) into the transparent hard tubes (15) in the cable strand clamping members (1) disposed on the upstream cable strand and the downstream cable strand respectively; Read the liquid level values ​​at both ends of the transparent hose (2) according to the scale lines on the transparent hard tube (15); The height difference between the upstream and downstream strands is calculated based on the liquid level values ​​at both ends of the transparent hose (2).

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