A loosening prevention device and method for the cable clip nut applicable to the cable clip of a suspension bridge

Abstract

The present invention discloses a loosening prevention device and method for a clamp nut applicable to a suspension bridge cable clamp, which sets a first half cable clamp and a second half cable clamp in butt joint; a plurality of nut self-locking components are arranged on the butt joint edge of the first half cable clamp and the second half cable clamp. The nut self-locking component is provided with a shell, and a self-locking component and an orientation adjusting component are arranged in the shell. The self-locking component locks the adjusting orientation of the orientation adjusting component; the axial ends of the butt joint edges of the first half cable clamp and the second half cable clamp are connected and pressed through a connecting component. Through the nut self-locking component, the loosening prevention device of the cable clamp nut can adapt to various orientations of the cable clamp nut. At the same time, the orientation adjusting component can be replaced arbitrarily, so that the loosening prevention device of the cable clamp nut can adapt to various specifications and sizes of the cable clamp nut. Through the connecting component, the loosening prevention device of the cable clamp nut is easy to disassemble, which is convenient for subsequent detection or supplementary tensioning work of the pre-tightening force of the related screw rod.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge engineering, and particularly relates to a loosening prevention device and method for a clamp nut applicable to a suspension bridge cable clamp. Background Art

[0002] As one of the main components of the upper structure of a suspension bridge, the cable clamp of a suspension bridge is fastened by a clamp screw in engineering, and the friction resistance generated between the cable clamp and the main cable is relied on to prevent the cable clamp from slipping on the main cable. Due to factors such as the deformation of the main cable, the relaxation creep of the clamp screw, the thread slip, and the vibration of the bridge, the clamp nut will be loosened to varying degrees during the operation of the bridge, resulting in different degrees of loss of the pre-tightening force of the clamp screw during the operation process, causing the cable clamp to slip, leading to the redistribution of the force of the cable structure system, and causing the change of the linear shape of the main structure. In severe cases, it will even threaten the safe operation of the bridge. Therefore, how to effectively prevent the loosening of the clamp nut of a suspension bridge has become a problem to be solved.

[0003] Currently, the commonly used technical methods for preventing nut loosening include physical methods, adding gaskets, using lock nuts, using double nuts, using cam washers, etc. The common physical method generally refers to using a steel plate with holes of the same size as the nut to sleeve the nut to prevent it from loosening. However, the orientations of the nuts on the cable clamp are not the same after the screw is tensioned, which increases the difficulty of drilling holes in the steel plate. And when this method is applied to the lower cable clamp, it is often necessary to fix the steel plate by welding, otherwise the steel plate is likely to fall off and cause safety hazards. Once the steel plate is welded to the cable clamp, subsequent related screw pre-tightening force detection or re-tensioning work cannot be carried out; the method of adding gaskets usually adds flat gaskets or spring gaskets, and the method of using lock nuts usually uses nylon nuts. These two methods only reduce the nut loosening speed and cannot effectively prevent the nut from loosening; the method of using double nuts means adding another nut on the basis of the original nut. Since a hydraulic instrument is required to pull out the screw on the cable clamp, there are certain requirements for the length of the exposed part of the screw. If the method of using double nuts is adopted, the length of the exposed part of the screw is too short, and the hydraulic puller cannot work normally, and this method also cannot effectively prevent the nut from loosening; using a cam washer means using two paired washers with corresponding cams inside, and the wedge effect of the cams is used to prevent the nut from loosening. Although this method has high efficiency, using this method will also cause the length of the exposed part of the screw to become shorter, resulting in the inability to tension the screw, and it is more difficult to apply to the cable clamp of a suspension bridge. To solve the above problems, a loosening prevention device for a clamp nut is needed, which not only has a very high level of anti-loosening, but also needs to have adaptability to the orientation of the clamp nut, and at the same time needs to be convenient to disassemble, facilitating subsequent related screw pre-tightening force detection or re-tensioning work. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide an anti-loosening device and method for the clamp nut applicable to the suspension bridge clamp. Through the azimuth adjustment component, the anti-loosening device of the clamp nut can adapt to various azimuths of the clamp nut, and at the same time, the azimuth adjustment component can be arbitrarily replaced so that the anti-loosening device of the clamp nut can adapt to various specifications and sizes of the clamp nut; through the self-locking component, the anti-loosening device of the clamp nut has a very high level of preventing loosening. At the same time, by rotating the self-locking component, the anti-loosening device of the clamp nut can prevent the nuts in different loosening directions from loosening; through the connection component, the anti-loosening device of the clamp nut has a certain pressure on the clamp, which is beneficial to the force of the clamp; through the connection component, the anti-loosening device of the clamp nut is easy to disassemble, facilitating subsequent detection or supplementary tensioning of the pre-tightening force of the screw rod, and enabling each part of the device to be reused.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An anti-loosening device for a clamp nut applicable to a suspension bridge clamp is provided with a first half clamp and a second half clamp in butt joint; a plurality of nut self-locking components are arranged on the butt joint edge of the first half clamp and the second half clamp. The nut self-locking component is provided with a housing, and a self-locking component and an azimuth adjustment component are arranged in the housing. The self-locking component locks the adjustment azimuth of the azimuth adjustment component; the axial ends of the butt joint edges of the first half clamp and the second half clamp are connected and pressed through a connection component.

[0007] Optionally, the self-locking component includes a spring and a top shaft that are sequentially arranged on top in the housing; a lock clamp that rotates around the shaft is arranged at the front end of the top shaft, and the lock clamp contacts the top shaft along the inclined side surface.

[0008] Optionally, the top shaft is a combined structure of a cylinder and a columnar cone, and the spring is sleeved on the cylinder section of the top shaft; the outer diameter of the columnar cone is larger than the outer diameter of the cylinder; the columnar cone of the top shaft is tangent to the inclined side surface of the lock clamp.

[0009] Optionally, the lock clamp is a combined body of a triangular plate body and wedge-shaped plates extending from two corners; the inclined side surface of the triangular plate body contacts the top shaft, and the wedge-shaped plates contact the azimuth adjustment component; a knob is also fixedly arranged on the lock clamp, and the knob extends out of the housing.

[0010] Optionally, the azimuth adjustment component includes a nut sleeve, a screw rod sleeve and a transmission shaft arranged in sequence along the axis; a gear is limited and sleeved outside the screw rod sleeve, the gear and the screw rod sleeve are located in the housing, and the nut sleeve and the transmission shaft are located outside the housing; the gear contacts the self-locking component.

[0011] Optionally, a plurality of limiting keys are evenly distributed on the inner wall of the gear hole, and a plurality of limiting key grooves are embedded on the outer wall of the screw rod sleeve; the limiting keys are inserted into the limiting key grooves.

[0012] Optionally, a first mounting plate is pressed onto the edge of the first half cable clamp, a second mounting plate is pressed onto the edge of the second half cable clamp, and a connecting assembly is provided to connect the first mounting plate and the second mounting plate; the connecting assembly includes a connecting belt that connects the first mounting plate and the second mounting plate and passes through the first mounting plate, a fastener is buckled at the joint between the connecting belt and the first mounting plate, and a buckle that contacts the connecting belt is inserted into the fastener; serrations are provided on the contact surface of the buckle with the connecting belt, and a serrated groove that engages with the serrations is provided on the connecting belt.

[0013] Optionally, the connecting belt is a rectangular strip structure with a serrated groove on one side, one end of the connecting belt is welded to the second mounting plate, and the other end passes through a square hole set on the first mounting plate; the fixer is a step structure with a square through groove, one end of the buckle is welded to the inner side of the fixer, and the other end of the buckle crosses the fixer and is pressed against the first mounting plate through a welding rod.

[0014] A method for using a cable clamp nut anti-loosening device suitable for use in a cable clamp of a suspension bridge, comprising the following process: the installation of a nut self-locking component is divided into two situations, in the first situation, when the cable clamp nut is loosened in the counterclockwise direction, the self-locking component is rotated clockwise until it cannot be rotated, and the orientation adjustment component is rotated clockwise according to the orientation of the cable clamp nut so that the nut sleeve tightly wraps the cable clamp nut, and at this time the gear is resisted by the tip of the locking pliers in the counterclockwise direction, so that the self-locking component can lock the orientation adjustment component in the counterclockwise direction, and at this time the nut self-locking component limits the counterclockwise loosening of the cable clamp nut; in the second situation, when the cable clamp nut is loosened in the clockwise direction, the knob is rotated counterclockwise. Until it cannot rotate, rotate the orientation adjustment assembly counterclockwise according to the orientation of the cable clamp nut so that the nut sleeve tightly wraps the cable clamp nut. At this time, the gear is pressed by the tip of the locking pliers in the clockwise direction, so that the self-locking assembly can lock the orientation adjustment assembly in the clockwise direction. At this time, the nut self-locking assembly limits the clockwise loosening of the cable clamp nut; after the orientation is adjusted in sequence, the nut self-locking assembly is welded to the first mounting plate and the second mounting plate in sequence. At this time, the cable clamp nut anti-loosening device is installed and takes effect, and the cable clamp nut cannot be loosened; if the device needs to be disassembled, you only need to cut the welding rod and lift the tail end of the buckle upwards. At this time, the connecting belt is loose and the device can be removed.

[0015] The present invention has the following technical effects:

[0016] The cable clamp nut anti-loosening device of the present invention can adapt to various orientations of the cable clamp nut, and the orientation adjustment component can be replaced at will so that the cable clamp nut anti-loosening device can adapt to various specifications and sizes of the cable clamp nut;

[0017] The present invention enables the cable clamp nut anti-loosening device to have a high anti-loosening level through the self-locking component, and at the same time, the cable clamp nut anti-loosening device can prevent nuts in different loosening directions from loosening by rotating the self-locking component;

[0018] The present invention enables the cable clamp nut anti-loosening device to apply a certain pressure to the cable clamp through the connection component, which is beneficial to the force-bearing of the cable clamp;

[0019] The present invention enables the cable clamp nut anti-loosening device to be easily disassembled through the connection component, which is convenient for subsequent detection of the pre-tightening force of the screw rod or supplementary tensioning work;

[0020] The present invention is made of Q345 steel, has high strength and durability, and enables each part of the device to be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0022] Figure 1 is a three-dimensional structural schematic diagram of the cable clamp nut anti-loosening device applicable to the cable clamp of a suspension bridge according to the present invention;

[0023] Figure 2 is Figure 1 a structural schematic diagram of the connection component in

[0024] Figure 3 is Figure 1 a three-dimensional diagram of the nut self-locking component structure in

[0025] Figure 4 is is Figure 3 a longitudinal sectional view of

[0026] Figure 5 is Figure 3 a three-dimensional structural diagram of the azimuth adjustment component in

[0027] Figure 6 is Figure 3 two usage state diagrams of

[0028] Figure 7 is a structural schematic diagram of the connection and pressing component of the present invention;

[0029] In the figure, each label represents:

[0030] 1 - nut self-locking component, 2 - first mounting plate, 21 - first mounting hole, 3 - second mounting plate, 31 - second mounting hole, 4 - connection component, 5 - first half cable clamp, 6 - second half cable clamp, 7 - screw rod, 8 - cable clamp nut, 9 - nut gasket;

[0031] 41 - connection belt, 42 - buckle, 43 - fixator, 44 - welding rod, 411 - serrated groove, 421 - serration;

[0032] 11 - housing, 111 - counterbore, 112 - central axis, 12 - self - locking assembly, 121 - spring, 122 - top shaft, 123 - knob, 124 - locking clamp, 13 - azimuth adjustment assembly, 131 - transmission shaft, 132 - force - transmitting column, 133 - screw sleeve, 1331 - limiting keyway, 134 - gear, 1341 - limiting key, 135 - nut sleeve; Detailed implementation mode

[0033] To make the features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes.

[0034] Combined with Figures 1-7 , the anti - loosening device for the cable - clamp nut applicable to the cable - clamp of the suspension bridge of the present invention is provided with a butt - joint first half - cable - clamp 5 and a second half - cable - clamp 6; a plurality of nut self - locking assemblies 1 are arranged on the butt - joint edge of the first half - cable - clamp 5 and the second half - cable - clamp 6. The nut self - locking assembly 1 is provided with a housing 11, and a self - locking assembly 12 and an azimuth adjustment assembly 13 are arranged in the housing 11. The self - locking assembly 12 locks the adjusted azimuth of the azimuth adjustment assembly 13; the axial ends of the butt - joint edges of the first half - cable - clamp 5 and the second half - cable - clamp 6 are connected and pressed through a connecting assembly 4. For example, detachable first mounting plate 2 and second mounting plate 3 can be first installed on the butt - joint edge of the first half - cable - clamp 5 and the second half - cable - clamp 6, and the nut self - locking assembly 1 is tightly connected to both the first mounting plate 2 and the second mounting plate 3 by welding; both the first mounting plate 2 and the second mounting plate 3 are rectangular plate structures made of Q345 steel. The lower surface of the first mounting plate 2 is in close contact with the upper surface of the first half - cable - clamp 5, and the upper surface of the second mounting plate 3 is in close contact with the lower surface of the second half - cable - clamp 6; the connecting assembly 4 can connect the first mounting plate 2 and the second mounting plate 3. The first half - cable - clamp 5 and the second half - cable - clamp 6 are connected by a screw 7 and fastened with a cable - clamp nut 8. The anti - loosening device for the cable - clamp nut of the present invention can adapt to various azimuths of the cable - clamp nut 8, and at the same time, the azimuth adjustment assembly 13 can be replaced arbitrarily so that the anti - loosening device for the cable - clamp nut can adapt to various specifications and dimensions of the cable - clamp nut 8; through the self - locking assembly 12, the anti - loosening device for the cable - clamp nut has a high level of preventing loosening. At the same time, by rotating the self - locking assembly 12, the anti - loosening device for the cable - clamp nut can prevent the nuts in different loosening directions from loosening; through the connecting assembly 4, the anti - loosening device for the cable - clamp nut has a certain pressure on the cable - clamp, which is beneficial to the cable - clamp to bear force; through the connecting assembly 4, the anti - loosening device for the cable - clamp nut is easy to disassemble, which is convenient for subsequent detection or supplementary tensioning work of the pre - tightening force of the screw.

[0035] In an embodiment of the present disclosure, the self-locking assembly 12 includes a spring 121 and a top shaft 122 that are sequentially arranged at the top in the housing 11; a lock clamp 124 that rotates around the axis is arranged at the front end of the top shaft 122, and the lock clamp 124 contacts the top shaft 122 along the inclined side surface. The housing 11 of the nut self-locking assembly 1 is a combined component of a cylinder and a cuboid. There is a counterbore 111 in the protruding part of the cylindrical structure of the housing 11. There is a space inside the non-protruding part of the housing 11 for accommodating the self-locking assembly 12 and the azimuth adjustment assembly 13. The upper and lower surfaces on the right side of the non-protruding part of the housing 11 are penetrated by a circular hole, and there is a circular hole on the left side that penetrates from the upper surface to the inner surface, which are respectively used for penetrating and arranging the azimuth adjustment assembly 13 and the self-locking assembly 12.

[0036] In an embodiment of the present disclosure, the top shaft 122 is a combined structure of a cylinder and a columnar cone. The spring 121 is sleeved on the cylindrical section of the top shaft 122; the outer diameter of the columnar cone is larger than the outer diameter of the cylinder; the columnar cone of the top shaft 122 is tangent to the inclined side surface of the lock clamp 124. The spring 121 of the self-locking assembly 12 is made of Q345 steel. The spring 121 is placed in the counterbore 111, and the outer diameter dimension of the spring 121 is the same as the diameter of the counterbore 111, so that the outer surface of the spring 121 can be in close contact with the inner surface of the counterbore 111. The top shaft 122 is a combined structure of a cylinder and a columnar cone, and is made of Q345 steel. The diameter of the cylindrical part of the top shaft 122 is the same as the inner diameter of the spring 121, so that the inner surface of the spring 121 can be in close contact with the outer surface of the cylindrical part of the top shaft 122. The diameter of the columnar cone part of the top shaft 122 is the same as the diameter of the counterbore 111, so that the outer surface of the columnar cone part of the top shaft 122 is in close contact with the inner surface of the counterbore 111, and the top shaft 122 can slide freely along the direction of the counterbore 111 through the compression or elongation of the spring 121.

[0037] In the embodiment of the present disclosure, the locking pliers 124 is a combination of a triangular plate body and wedge-shaped plates extending from two corners; the oblique side of the triangular plate body contacts the top shaft 122, and the wedge-shaped plate contacts the azimuth adjustment assembly 13; a knob 123 is also fixed on the locking pliers 124, and the knob 123 extends out of the housing 11. The locking pliers 124 is a combination of an upper cylindrical body and a lower clamp-shaped structure, and is made of Q345 steel. The diameter of the cylindrical part of the locking pliers 124 is the same as the circular hole on the left side of the housing 11. There is a locking pliers countersunk hole at the coaxial position of the cylindrical part of the locking pliers 124. The lower surface of the locking pliers 124 has a circular ring protrusion at the coaxial position of the locking pliers countersunk hole. The lower surface of the circular ring is in close contact with the inner surface of the housing 11, and the oblique side of the locking pliers 124 is in close contact with the surface of the cylindrical cone part of the top shaft 122, and can slide relatively. The central axis 112 is a cylindrical structure made of Q345 steel. The central axis 112 is welded and fixed inside the shell 11. The diameter of the central axis 112 is the same as the diameter of the locking pliers countersunk hole, and the outer surface of the central axis 112 is in close contact with the inner surface of the locking pliers countersunk hole. The knob 123 is a cylindrical structure made of Q345 steel. The knob 123 is tightly connected to the upper surface of the locking pliers 124 and is welded at the coaxial position of the cylindrical part of the locking pliers 124. Turning the knob 123 can make the locking pliers 124 rotate slightly around the central axis 112 to adjust the orientation. Rotating the transmission shaft 131 allows the screw sleeve 133 to rotate freely around the center in the right circular hole of the shell 11, and the gear 134 is driven to rotate through the limit key 1341, so that the orientation adjustment component 13 can rotate freely around the center of the circular hole. The gear 134 can be pressed against by the tip of the locking pliers 124 in one direction, so that the self-locking assembly 12 can lock the orientation adjustment assembly 13 in one direction.

[0038] In an embodiment of the present disclosure, the azimuth adjustment assembly 13 includes a nut sleeve 135, a screw sleeve 133, and a transmission shaft 131 that are sequentially arranged along the axial direction; a gear 134 is sleeved outside the screw sleeve 133 in a limited manner, the gear 134 and the screw sleeve 133 are located inside the housing 11, and the nut sleeve 135 and the transmission shaft 131 are located outside the housing 11; the gear 134 contacts the self-locking assembly 12. The gear 134 of the azimuth adjustment assembly 13 is made of Q345 steel, and the upper and lower surfaces of the gear 134 are in close contact with the inner surface of the housing 11; the nut sleeve 135 and the screw sleeve 133 are integrally made of Q345 steel. Both the nut sleeve 135 and the screw sleeve 133 are of a cylindrical structure. The diameter of the nut sleeve 135 is larger than that of the screw sleeve 133. There is a counterbore inside the nut sleeve 135, and the size is the same as that of the cable clamp nut 8 so that the counterbore can tightly wrap the cable clamp nut 8; there is a circular screw hole inside the screw sleeve 133, and the diameter of the screw hole is the same as that of the screw 7 so that the exposed part of the screw 7 can penetrate into the screw hole. The outer surface diameter of the screw sleeve 133 is the same as the diameter of the gear through hole and the right circular hole of the housing 11. The height of the screw sleeve 133 is the same as that of the housing 11. And the transmission shaft 131 is of a cuboid structure, made of Q345 steel, and the transmission shaft 131 is tightly connected to the screw sleeve 133 by welding. The force transmission column 132 is of a cylindrical structure, made of Q345, and the two force transmission columns 132 are tightly connected to the transmission shaft 131 by welding.

[0039] In an embodiment of the present disclosure, a plurality of limiting keys 1341 are evenly distributed on the inner wall of the hole of the gear 134, and a plurality of limiting key grooves 1331 are embedded on the outer wall of the screw sleeve 133; the limiting keys 1341 are inserted into the limiting key grooves 1331. There are four limiting key grooves 1331 evenly distributed along the circumference on the outer surface of the screw sleeve 133. There is a gear through hole in the center position of the gear 134 that penetrates the upper and lower surfaces of the gear. There are four limiting keys 1341 evenly distributed along the circumference on the inner surface of the gear through hole. The limiting keys 1341 can be tightly inserted into the limiting key grooves 1331, so that the screw sleeve 133 is tightly connected to the gear 134.

[0040] In an embodiment of the present disclosure, a first mounting plate 2 is pressed on the edge of the first half cable clamp 5, and a second mounting plate 3 is pressed on the edge of the second half cable clamp 6. A connecting component 4 is arranged to connect the first mounting plate 2 and the second mounting plate 3; the connecting component 4 includes a connecting belt 41 that connects the first mounting plate 2 and the second mounting plate 3 and passes through the first mounting plate 2. A fixator 43 is buckled at the connection point of the connecting belt 41 and the first mounting plate 2, and a buckle 42 that contacts the connecting belt 41 is inserted on the fixator 43; a sawtooth 421 is arranged on the contact surface of the buckle 42 with the connecting belt 41, and a sawtooth groove 411 that engages with the sawtooth 421 is arranged on the connecting belt 41. The first mounting plate 2 is a rectangular parallelepiped plate structure made of Q345 steel. Four first mounting holes 21 are opened on the first mounting plate 2. The number of the first mounting holes 21 is determined by the number of cable clamp nuts 8, so that each cable clamp nut 8 can freely pass through the corresponding first mounting hole 21. Square holes are opened on both sides of the first mounting plate 2; the second mounting plate 3 is a rectangular parallelepiped plate structure made of Q345 steel. Four second mounting holes 31 are opened on the second mounting plate 3. The number of the second mounting holes 31 is determined by the number of cable clamp nuts 8, so that each cable clamp nut 8 can freely pass through the corresponding second mounting hole 31. The sizes of the first mounting holes 21 and the second mounting holes 31 are the same as those of the nut gaskets 9, so that the nut gaskets 9 can be embedded in the first mounting holes 21 and the second mounting holes 31.

[0041] In an embodiment of the present disclosure, the connecting belt 41 is a rectangular parallelepiped strip structure, and a sawtooth groove 411 is arranged on one side. One end of the connecting belt 41 is welded to the second mounting plate 3, and the other end passes through the square hole arranged on the first mounting plate 2; the fixator 43 is a trapezoidal structure with a square through groove. One end of the buckle 42 is welded to the inner side of the fixator 43, and the other end of the buckle presses on the first mounting plate 2 through a welding rod 44 across the fixator. The connecting belt 41 of the connecting component 4 is a rectangular parallelepiped strip structure made of Q345 material. There is a sawtooth groove 411 in the middle of the connecting belt 41. One end of the connecting belt 41 is tightly connected to the second mounting plate 3 by welding, and one end can freely pass through the square hole of the first mounting plate 2. The buckle 42 is a strip structure made of Q345 material. The surface of the buckle 42 is provided with sawteeth 421, and the sawteeth 421 can be tightly engaged with the sawtooth groove 411. The fixator 43 is a trapezoidal structure. The upper and lower surfaces of the fixator 43 are penetrated by a middle square through groove. One end of the buckle 42 is tightly connected to the inner surface of the square through groove by welding, and the connecting belt 41 can freely pass through the square through groove. The welding rod 44 is a strip structure made of Q345 material. The welding rod 44 is tightly connected to the first mounting plate 2 by welding. At this time, the welding rod 44 presses the tail end of the buckle 42.

[0042] Combined Figures 1-7 , the usage method of the cable clamp nut anti-loosening device applicable to the cable clamp of a suspension bridge in the present invention includes the following processes:

[0043] The first half cable clamp 5 and the second half cable clamp 6 are connected by a screw rod 7 and fastened by a cable clamp nut 8. The number of the first mounting holes 21 and the second mounting holes 31 is determined according to the number of cable clamp nuts 8, the center distance of the first mounting holes 21 and the second mounting holes 31 is determined according to the center distance of the cable clamp nuts 8, and the size of the first mounting holes 21 and the second mounting holes 31 is determined according to the size of the nut gasket 9. The first mounting plate 2 and the second mounting plate 3 are produced in the factory; the size of the second countersunk hole 138 inside the nut sleeve 135 is determined according to the size of the cable clamp nut 8, and the factory is produced after the determination is completed. At the same time, the housing 11, the self-locking component 12, and the azimuth adjustment component 13 are produced in the factory to complete the assembly of the nut self-locking component 1; the connecting belt 41, the buckle 42 and the fixer 43 are all prefabricated in the factory, and the fixer 43 is welded to the first mounting plate 2 according to the square hole position of the first mounting plate 2, and one end of the buckle 42 is welded to the inner surface of the square through groove of the fixer 43. At this time, the factory prefabrication preparation stage is completed.

[0044] During the installation phase of the anti-loosening device for the cable clamp nut 8, the first mounting plate 2 is installed first, and the first mounting plate 2 is placed on the first half cable clamp 5. At this time, the nut gasket 9 is embedded in the first mounting hole 21, and the screw 7 and the cable clamp nut 8 are freely passed through the first mounting hole 21. Then the second mounting plate 3 is installed, and the second mounting plate 3 is supported to contact the surface of the second half cable clamp 6. At this time, the nut gasket 9 is embedded in the second mounting hole 31, and the screw 7 and the cable clamp nut 8 are freely passed through the second mounting hole 31. The connecting belts 41 at both ends are simultaneously passed through the square hole and passed through the fixer 43, and then one end of the two connecting belts 41 is welded to the corresponding position of the second mounting plate 3 and the square hole in turn, and the two connecting belts 41 are pulled at the same time until there is no gap between the second mounting plate 3 and the surface of the second half cable clamp 6. At this time, the connecting belt 41 is subjected to tension, and the buckle 42 clamps the connecting belt 41 so that it cannot slide vertically downward. Then the welding rod 44 is welded to the first mounting plate 2 to press the tail end of the buckle 42. At this time, the first mounting plate 2 and the second mounting plate 3 are installed, and the nut self-locking assembly 1 is installed.

[0045] Combination Figure 6 There are two situations for the installation of the nut self-locking assembly 1. In the first situation, when the cable clamp nut 8 is loosened in the counterclockwise direction, the knob 123 is turned clockwise until it cannot be turned, and the orientation adjustment assembly 13 is turned clockwise according to the orientation of the cable clamp nut 8 so that the nut sleeve 135 tightly wraps the cable clamp nut 8. At this time, the gear 134 is resisted by the tip of the locking pliers 124 in the counterclockwise direction, so that the self-locking assembly 12 can lock the orientation adjustment assembly 13 in the counterclockwise direction. At this time, the nut self-locking assembly 1 limits the counterclockwise loosening of the cable clamp nut 8;

[0046] In the second case, when the cable clamp nut 8 is loosened in the clockwise direction, the knob 123 is turned counterclockwise until it cannot be turned. According to the orientation of the cable clamp nut 8, the orientation adjustment component 13 is turned counterclockwise so that the nut sleeve 135 tightly wraps the cable clamp nut 8. At this time, the gear 134 is pressed against the tip of the locking pliers 124 in the clockwise direction, so that the self-locking component 12 can lock the orientation adjustment component 13 in the clockwise direction. At this time, the nut self-locking component 1 limits the clockwise loosening of the cable clamp nut 8. After the orientation is adjusted in sequence, the nut self-locking component 1 is welded to the first mounting plate 2 and the second mounting plate 3 in sequence. At this time, the cable clamp nut 8 anti-loosening device is installed and takes effect, and the cable clamp nut 8 cannot be loosened.

[0047] If the device is to be disassembled, it is only necessary to cut the welding rod 44 and lift up the tail end of the buckle 42. At this time, the connecting belt 41 is loosened and the device can be removed.

[0048] The anti-loosening device and the use method thereof provided by the present invention enable the anti-loosening device of the cable clamp nut 8 to adapt to various orientations of the cable clamp nut 8 through an orientation adjustment component, and at the same time, the orientation adjustment component can be replaced arbitrarily so that the anti-loosening device of the cable clamp nut 8 can adapt to various specifications and sizes of the cable clamp nut 8; the anti-loosening device of the cable clamp nut 8 has a high level of anti-loosening through a self-locking component, and at the same time, the anti-loosening device of the cable clamp nut 8 can prevent nuts in different loosening directions from loosening by rotating the self-locking component; the anti-loosening device of the cable clamp nut 8 has a certain pressure on the cable clamp through the connecting component, which is beneficial to the force on the cable clamp; the anti-loosening device of the cable clamp nut 8 is easy to disassemble through the connecting component, which is convenient for subsequent related screw preload force detection or tensioning work; it is made of Q345 steel, has high strength and durability, so that all parts of the device can be reused.

[0049] In the above description, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integrated connection; it can be a direct connection or an indirect connection, etc. For ordinary technicians in this field, the specific meanings of the above terms in this technical solution can be understood according to specific circumstances.

[0050] The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A loosening prevention device for the cable clamp nut applicable to the cable clamp of a suspension bridge, characterized in that, Set the first half cable clip (5) and the second half cable clip (6) for docking; A plurality of nut self-locking components (1) are arranged on the docking edges of the first half cable clip (5) and the second half cable clip (6). The nut self-locking component (1) is provided with a housing (11), and a self-locking component (12) and an azimuth adjusting component (13) are arranged in the housing (11). The self-locking component (12) locks the adjusted azimuth of the azimuth adjusting component (13); The axial ends of the docking edges of the first half cable clip (5) and the second half cable clip (6) are connected and pressed by a connecting component (4); The self-locking component (12) includes a spring (121) and a top shaft (122) that are sequentially arranged and topped in the housing (11); a lock clamp (124) that rotates on the shaft is arranged at the front end of the top shaft (122), and the lock clamp (124) contacts the top shaft (122) along the inclined side; the top shaft (122) is a combined structure of a cylinder and a columnar cone. The spring (121) is sleeved on the cylinder section of the top shaft (122); the outer diameter of the columnar cone is larger than the outer diameter of the cylinder; the columnar cone of the top shaft (122) is tangent to the inclined side of the lock clamp (124); the lock clamp (124) is a combination of a triangular plate body and wedge-shaped plates extending at two corners; the inclined side of the triangular plate body contacts the top shaft (122), and the wedge-shaped plates contact the azimuth adjusting component (13); a knob (123) is also fixedly arranged on the lock clamp (124), and the knob (123) extends outside the housing (11); The azimuth adjusting component (13) includes a nut sleeve (135), a screw sleeve (133), and a transmission shaft (131) that are sequentially arranged along the axis; a gear (134) is sleeved outside the screw sleeve (133) in a limited manner. The gear (134) and the screw sleeve (133) are located in the housing (11), and the nut sleeve (135) and the transmission shaft (131) are located outside the housing (11); the gear (134) contacts the self-locking component (12); a plurality of limit keys (1341) are evenly distributed on the inner wall of the hole of the gear (134), and a plurality of limit key grooves (1331) are embedded on the outer wall of the screw sleeve (133); the limit keys (1341) are inserted into the limit key grooves (1331).

2. The anti-loosening device for the cable clip nut applicable to the cable clip of the suspension bridge according to claim 1, characterized in that, A first mounting plate (2) is pressed on the edge of the first half cable clip (5), and a second mounting plate (3) is pressed on the edge of the second half cable clip (6). A connecting component (4) is arranged to connect the first mounting plate (2) and the second mounting plate (3); The connecting component (4) includes a connecting belt (41) that connects the first mounting plate (2) and the second mounting plate (3) and passes through the first mounting plate (2). A fixator (43) is buckled at the connection part of the connecting belt (41) and the first mounting plate (2), and a buckle (42) that contacts the connecting belt (41) is inserted on the fixator (43); Jagged teeth (421) are arranged on the contact surface of the buckle (42) with the connecting belt, and a jagged groove (411) that engages with the jagged teeth (421) is arranged on the connecting belt (41).

3. The anti-loosening device for the cable clip nut applicable to the cable clip of a suspension bridge according to claim 2, wherein The connecting belt (41) is in the shape of a rectangular strip, with a serrated groove (411) provided on one side. One end of the connecting belt (41) is welded to the second mounting plate (3), and the other end passes through a square hole provided on the first mounting plate (2). The retainer (43) is in the shape of a frustum with a square through groove. One end of the buckle (42) is welded to the inner side of the retainer (43), and the other end of the buckle passes over the retainer and is pressed against the first mounting plate (2) by a welding rod (44).

4. A loosening prevention device for the cable clip nut applicable to the cable clip of a suspension bridge, characterized in that, The first half cable clamp (5) and the second half cable clamp (6) are provided in a butt-jointed manner. A plurality of nut self-locking assemblies (1) are arranged on the butting edges of the first half cable clamp (5) and the second half cable clamp (6). The nut self-locking assembly (1) is provided with a housing (11), and a self-locking assembly (12) and an azimuth adjustment assembly (13) are arranged inside the housing (11). The self-locking assembly (12) locks the adjustment azimuth of the azimuth adjustment assembly (13). The axial ends of the butting edges of the first half cable clamp (5) and the second half cable clamp (6) are connected and pressed by a connecting assembly (4). The self-locking assembly (12) includes a spring (121) and a top shaft (122) sequentially arranged and topped inside the housing (11). A lock clamp (124) that rotates around the shaft is provided at the front end of the top shaft (122), and the lock clamp (124) contacts the top shaft (122) along the inclined side. The azimuth adjustment assembly (13) includes a nut sleeve (135), a screw sleeve (133), and a transmission shaft (131) sequentially arranged along the axis. A gear (134) is sleeved outside the screw sleeve (133) in a limited manner. The gear (134) and the screw sleeve (133) are located inside the housing (11), and the nut sleeve (135) and the transmission shaft (131) are located outside the housing (11). The gear (134) is in tight contact with the lock clamp (124). The first mounting plate (2) is pressed on the edge of the first half cable clamp (5), and the second mounting plate (3) is pressed on the edge of the second half cable clamp (6). A connecting assembly (4) is provided to connect the first mounting plate (2) and the second mounting plate (3). The connecting assembly (4) includes a connecting belt (41) that connects the first mounting plate (2) and the second mounting plate (3) and passes through the first mounting plate (2). A retainer (43) is buckled at the connection point of the connecting belt (41) and the first mounting plate (2), and a buckle (42) that contacts the connecting belt (41) is inserted on the retainer (43). One end of the buckle (42) is welded to the inner side of the retainer (43), and the other end of the buckle passes over the retainer and is pressed against the first mounting plate (2) by a welding rod (44).

5. A method for using an anti-loosening device for a cable clip nut applicable to a cable clip of a suspension bridge, characterized in that, It is completed by using the cable clamp nut anti-loosening device applicable to the cable clamp of a suspension bridge described in claim 4, including the following process: The installation of the nut self-locking assembly (1) is divided into two situations. In the first situation, when the cable clamp nut (8) is loosened in the counterclockwise direction, the self-locking assembly is rotated clockwise until it cannot be rotated. According to the orientation of the cable clamp nut (8), the orientation adjustment assembly (13) is rotated clockwise so that the nut sleeve (135) tightly wraps the cable clamp nut (8). At this time, the gear (134) is resisted by the tip of the locking pliers (124) in the counterclockwise direction, so that the self-locking assembly (12) can lock the orientation adjustment assembly (13) in the counterclockwise direction. At this time, the nut self-locking assembly (1) limits the counterclockwise loosening of the cable clamp nut (8); In the second case, when the cable clamp nut (8) is loosened in the clockwise direction, the knob (123) is turned counterclockwise until it cannot be turned, and the orientation adjustment component (13) is turned counterclockwise according to the orientation of the cable clamp nut (8) so that the nut sleeve (135) tightly wraps the cable clamp nut (8). At this time, the gear (134) is pressed against the tip of the locking pliers (124) in the clockwise direction, so that the self-locking component (12) can lock the orientation adjustment component (13) in the clockwise direction. At this time, the nut self-locking component (1) limits the clockwise loosening of the cable clamp nut (8); After the orientation is adjusted in sequence, the nut self-locking assembly (1) is welded to the first mounting plate (2) and the second mounting plate (3) in sequence. The device is installed and takes effect, and the cable clamp nut (8) cannot be loosened. If the device is to be disassembled, it is only necessary to cut the welding rod (44) and lift the rear end of the buckle (42) upwards. At this time, the connecting belt (41) is loosened and the device can be removed.

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