CN217078419U - Straddle type central buckle - Google Patents

Abstract

The utility model discloses a straddle type central authorities detain, central authorities detain the butt joint integrated configuration for axial segmentation, and are provided with the groove of striding that can connect the hoist cable on each cable clip section that falls into. The utility model effectively reduces the processing technology difficulty of the central button, improves the processing efficiency and ensures the processing quality, thereby effectively reducing the processing cost; when the central buckle is used in a suspension bridge structure, the inner surface of the whole central buckle is better attached to the main cable, the stress is more balanced, and the stress in the service process is stable and reliable.

Description

Straddle type central buckle

Technical Field

The utility model relates to a cable clip structure of suspension bridge specifically is a formula of striding central authorities of striding of arranging department in suspension bridge is detained-striding central authorities cable clip promptly.

Background

In the suspension bridge structure, a central buckle is a special cable clamp structure form for connecting a main cable and a bridge floor, the axial length of the central buckle is usually between 3 and 6m, and the central buckle is arranged at the lowest position of a main cable suspension chain line in the midspan area of the suspension bridge.

The central buckle is divided into a pin joint type central buckle and a straddle type central buckle according to the connection form between the central buckle and a sling/suspender. The straddle-type central buckle is characterized in that a straddle groove capable of connecting a sling in a straddle rewinding mode is arranged at the surface part of the upper side area of the middle of the outer contour of a ring body of the central buckle in an outward-convex spaced double-rib structure, namely, the straddle groove is formed by two rib plates which are formed at intervals and protrude outwards from the top of the central buckle to form the straddle groove, and the straddle groove is formed gradually and downwards along the designed sling tensioning direction.

Common formula of striding central authorities of striding is detained and is seen as shown in fig. 1, for axial monolithic structure, each cable of detaining the halfbody (left side cable of detaining halfbody and right side cable of detaining halfbody) that constitutes central authorities promptly is integrated, non-detachable overall structure respectively in the axial, and suspension bridge structure is high to the technical requirement that central authorities detained in addition, so, has increased the processing technology degree of difficulty that central authorities detained, and including the technical requirement height to processing equipment, the difficult design technical requirement that satisfies of machining precision etc. thereby lead to the central authorities of processing finished product to detain machining efficiency low, the processing cost is high.

At present, no effective technical measures are disclosed for the technical problem of difficult processing of the straddle-type central buckle due to the axial integral structure in the industry.

SUMMERY OF THE UTILITY MODEL

The technical purpose of the utility model is that: aiming at the particularity of the central buckle of the suspension bridge structure and the defects of the prior art, the straddle type central buckle capable of effectively reducing the difficulty of the processing technology is provided.

The technical purpose of the utility model is realized through the following technical scheme: the utility model provides a ride formula central authorities and detain, central authorities detain and are the butt joint integrated configuration of axial segmentation, and are provided with the groove of striding that can connect the hoist cable on each cable clip section that falls into. The technical measure is that the central buckle is combined in a segmented mode in the axial direction, so that the cable buckle half bodies forming the central buckle can be processed and formed in a segmented processing mode, the processing technical difficulty is reduced, the processing efficiency is improved, the processing quality is guaranteed, and the processing cost is effectively reduced; in addition, the sling formed on each cable buckle section straddles the connecting structure, so that when the processed central buckle is used in a suspension bridge structure, each cable buckle section can be connected and stressed between the main cable and the bridge floor, the inner surface of the whole central buckle is better attached to the main cable, the stress is more balanced, and the stress in the service process is stable and reliable.

As one preferable scheme, the central buckle is axially divided into at least two cable buckle sections, a flange capable of being axially butted and combined is arranged between the two adjacent cable buckle sections, and the two adjacent cable buckle sections are connected and combined together through a plurality of bolts which are circumferentially penetrated and arranged on the axial butting flange. The technical measure not only facilitates the butt joint combination molding of each cable buckle section of the axially segmented central buckle in the axial direction, but also can effectively enhance the axial butt joint combination connection strength between the adjacent cable buckle sections.

Furthermore, a base plate with an annular structure is clamped between two adjacent cable buckle section axial butt flanges of the central buckle, the flanges of the two adjacent cable buckle sections are axially butted through the base plate, and a plurality of bolts penetrating through the periphery of the axial butt flange penetrate through the base plate; the technical measure can further effectively enhance the axial butt joint combination connection strength between the adjacent cable buckle sections. Furthermore, the base plate is of a wedge-shaped structure with the bottom thickness larger than the top thickness, and the included angle between the two side surfaces of the base plate is less than or equal to 3 degrees; according to the technical measure, the whole main cable hole of the central buckle formed by axial butt joint and combination can form a slightly bent angle structure through the wedge-shaped base plate, the main cable hole of the angle structure not only can effectively increase the friction force of locking and holding assembly between the central buckle and the main cable, but also can be effectively adapted to the catenary line type of the main cable in the midspan area of the suspension bridge, and therefore the stability and the reliability of the central buckle in the state of bearing the sling force are further effectively enhanced. The base plate consists of a left half ring and a right half ring which are in circumferential butt joint; the technical measure effectively reduces the technical difficulty of processing and forming the base plate.

Furthermore, main cable holes with straight hole structures are formed in the cable buckle sections of the central buckle respectively, and the butt joint end faces of the cable buckle sections are matched with the vertical plane of the main cable holes formed by the cable buckle sections at included angles of 0-3 degrees. The technical measure can lead the whole main cable hole of the central button to form a straight hole structure; the whole main cable hole of the central buckle can form a slightly bent angle structure, and the main cable hole of the angle structure not only can effectively increase the friction force of locking and holding assembly between the central buckle and the main cable, but also can be effectively adapted to the catenary wire type of the main cable in the midspan area of the suspension bridge, thereby further effectively enhancing the stability and reliability of the central buckle in the state of bearing the sling force; in addition, compared with the main cable hole with the axial radian bending, the main cable hole with the bevel structure formed by the combination is processed and formed, so that the technical difficulty is greatly reduced.

Furthermore, a plurality of groups of positioning pin holes which correspond to one another are formed in the periphery of the butt flange between two adjacent cable buckle sections of the central buckle. The technical measure can effectively reduce the technical difficulty of the two adjacent cable buckle sections in the axial butt joint operation, is easy, easy and convenient to operate, and ensures the axial butt joint precision, especially in the state of clamping by the base plate.

Further, the central buckle is axially divided into two cable buckle sections. The technical measure aims at the axial length of the conventional central buckle, not only can achieve the technical purpose of effectively reducing the processing technical difficulty, but also can be convenient for the integral assembly and molding of each cable buckle section.

Preferably, the cable buckle section comprises a left half body and a right half body which are connected together in a left-right position through a bolt, the upper side and the lower side of the periphery of the left half body are respectively provided with a connecting part which is matched with the right half body and is provided with a forming bolt hole, the upper side and the lower side of the periphery of the right half body are respectively provided with a connecting part which is matched with the left half body and is provided with a forming bolt hole, and bolt holes on the connecting parts on the two sides of the left half body and bolt holes on the connecting parts on the two sides of the right half body are respectively in one-to-one corresponding matching relation.

The utility model has the beneficial technical effects that: the technical measures are that the central button is axially segmented and combined to be molded, so that a segmented processing mode is adopted during processing and molding, the processing technical difficulty of the whole central button is greatly reduced, the processing efficiency and the qualification rate of finished products are greatly improved, and the processing cost of the central button is effectively reduced; meanwhile, when the processed center buckle is used in a suspension bridge structure, the inner surface of the whole center buckle is better attached to the main cable, the stress is more balanced, and the stress in the service process is stable and reliable; in addition, the technical measures can enable the whole main cable hole of the central buckle to form a straight hole structure and can also enable the whole main cable hole of the central buckle to form a slightly bent angle structure, and the main cable hole of the angle structure not only can effectively increase the friction force of locking and holding assembly between the central buckle and the main cable, but also can be effectively adapted to the catenary line type of the main cable in the midspan area of the suspension bridge, so that the stress stability and reliability of the central buckle in the state of bearing the sling force are further effectively enhanced.

Drawings

Fig. 1 is a schematic structural view of a conventional straddle-type center buckle.

Fig. 2 is an exploded view of a structure according to the present invention.

Fig. 3 is a schematic structural view of the utility model shown in fig. 2 combined into a whole.

Fig. 4 is a schematic structural view of the first grommet segment shown in fig. 2 and 3.

Fig. 5 is a schematic view of the construction of the pad shown in fig. 2 and 3.

Fig. 6 is a side view of the shim plate shown in fig. 5.

Fig. 7 is a schematic structural view of a second buckle section of another structure of the present invention.

The reference numbers in the figures mean: 1-a first cord lock section; 11-a first left hemicyclic body; 12-a first right half ring; 13 — a first left flange; 14 — a first right flange; 15-first diagonal riding groove; 16-a first pull-down ride-on groove; 2-a second cable buckle section; 21-a second left half-ring; 22-a second right half ring body; 23 — a second left flange; 24-a second right flange; 25-second diagonal riding groove; 26-a second pull-down straddle groove; 3, backing plate; 31-left half ring; 32-right half ring.

Detailed Description

The utility model relates to a suspension bridge's cable clamp structure specifically is a arrange in suspension bridge and strides formula central authorities of striding of department and detain-striding formula central authorities cable clamp promptly, and it is right with a plurality of embodiments below to carry out the detailed description with the main part technical content of the utility model. In the embodiment 1, the technical solution content of the present invention is clearly and specifically explained with reference to the drawings of the specification, i.e., fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6; in embodiment 2, the technical solution content of the present invention is clearly and specifically explained with reference to the attached drawings of the specification, that is, fig. 7; in other embodiments, although not separately illustrated, the main structure of the embodiment may refer to the drawings of embodiment 1 or embodiment 2.

It is expressly stated here that the drawings of the present invention are schematic, and unnecessary details have been simplified for the purpose of clarity in order to avoid obscuring the technical solutions that contribute to the prior art.

Example 1

Referring to fig. 2, 3, 4, 5 and 6, the present invention is divided into two sections, which are substantially uniform in the axial direction, to form a first buckle section 1 and a second buckle section 2 (distinguished from each other in the left-right direction in the figure), and the first buckle section 1 and the second buckle section 2 are combined in the axial direction by the butt joint of the backing plate 3 to form a complete center buckle.

Specifically, the first cable buckle section 1 has a first left half ring body 11 and a first right half ring body 12 which are circumferentially butted and combined at left and right positions (along the left end surface of the structure shown in the figure, from left to right, the same applies below).

Wherein, the first left semi-ring body 11 is formed with a main cable hole with a semi-arc concave structure, and the main cable hole is formed with a straight hole structure on the first left semi-ring body 11. The rear end of the first left half-ring body 11 (which is distinguished from the front and the rear along the left-right direction in the figure, the same applies below) is used as the front end of the second left half-ring body 21 abutting against the second buckle section 2, and the abutting end face of the first left half-ring body 11 coincides with the vertical plane of the main cable hole formed by the first left half-ring body 11, that is, the abutting end face of the first left half-ring body 11 and the vertical plane of the main cable hole formed by the first left half-ring body are matched with each other at an included angle of about 0 degree.

The rear end part of the first left half-ring body 11 is circumferentially provided with a first left flange 13 which is radially and outwardly formed, and a plurality of bolt holes and a plurality of positioning pin holes are uniformly distributed on the circumference of the first left flange 13, preferably, the bolt holes and the positioning pin holes are distributed in an alternating mode.

The first left half ring body 11 is provided with a rib plate structure which protrudes outwards and is formed by two intervals, and a first pull-down riding groove 16 left section which gradually extends downwards from the top of the outer side of the ring body and is formed basically along the circumferential direction. The first left half ring body 11 is close to the riding groove 16 to protrude two rib plate structures formed at intervals outwards, and a first inclined riding groove 15 left section formed by extending obliquely and gradually from the top area outside the ring body to the middle lower area at the front end is formed.

The upper side and the lower side of the periphery of the first left half ring body 11 are respectively provided with a radially extending connecting part, a plurality of bolt holes are uniformly distributed on each connecting part along the axial length direction, and each bolt hole is formed in a penetrating mode along the thickness direction of the corresponding connecting part. Of course, the upper connection portion of the first left half-ring 11 should be avoided at the forming portion of the first pull-down straddling groove 16 and the first pull-up straddling groove 15.

The first right half ring body 12 is formed with a main cable hole of a semi-circular arc-shaped concave structure, and the main cable hole is formed on the first right half ring body 12 in a straight hole structure. The rear end of the first right half ring body 12 is used for butting the front end of a second right half ring body 22 of a second cable buckle section 2, and the butting end face of the first right half ring body 12 is superposed with the vertical plane of the main cable hole formed by the first right half ring body 12, namely, the butting end face of the first right half ring body 12 is matched with the vertical plane of the main cable hole formed by the first right half ring body 12 by an included angle of about 0 degree.

The rear end of the first right half ring body 12 has a first right flange 14 formed by radial extension on the circumference, and a plurality of bolt holes and a plurality of positioning pin holes are uniformly arranged on the circumference of the first right flange 14, preferably, the bolt holes and the positioning pin holes are arranged in an alternating mode. When the first right half ring body 12 is circumferentially butt-combined with the first left half ring body 11, the first right flange 14 and the first left flange 13 are substantially on the same plane.

The first right half ring body 12 is provided with a first pull-down riding groove 16 right section which is formed by outwardly protruding two rib plate structures formed at intervals and gradually extending downwards from the top of the outer side of the ring body along the circumferential direction, near the first right flange 14; when the first right half ring body 12 and the first left half ring body 11 are circumferentially butted and combined, the right section of the first pull-down straddling groove 16 is circumferentially butted with the left section of the first pull-down straddling groove 16 to form a rib plate structure which protrudes downwards from the periphery of the top part to form two spaced forming, thereby gradually forming the complete first pull-down straddling groove 16. The right half ring body 12 is provided with two rib plate structures which are externally protruded and formed at intervals between the top area close to the riding groove 16 and the middle-lower area at the front end part, and the right side section of the first inclined-pulling riding groove 15 is formed by extending from the top of the outer side of the ring body in a gradient manner; when the first right half ring body 12 and the first left half ring body 11 are circumferentially butted and combined, the first oblique-pulling straddling groove 15 right side section and the first oblique-pulling straddling groove 15 left side section are circumferentially butted to form a rib plate structure which protrudes outwards from the top to the lower part of the front end and is formed at two intervals, so that the complete first oblique-pulling straddling groove 15 formed in a gradual change manner is formed.

The upper and lower sides of the circumference of the first right half ring body 12 are respectively provided with radially extending connection parts, a plurality of bolt holes are uniformly distributed on each connection part along the axial length direction, and each bolt hole is formed in a penetrating way along the thickness direction of the corresponding connection part. Of course, the upper connection portion of the first right half ring 12 should be avoided at the forming position of the first pull-down straddling groove 16 and the first diagonal straddling groove 15. When the first right half ring 12 and the first left half ring 11 are circumferentially butted and combined, the bolt hole arrangement structure on the connection portion on each side is in a left-right position one-to-one corresponding fit relationship.

The first left half ring body 11 and the first right half ring body 12 form a circumferential butt joint combination through the respective upper and lower side coupling parts, and bolts are inserted into the corresponding one-to-one matching bolt holes formed at the coupling parts of the butt joint combination at each side to connect and lock the circumferential joints, so as to form a complete cylindrical structure cable buckle section, i.e. the first cable buckle section 1.

The second cable buckle section 2 has a second left half ring body 21 and a second right half ring body 22 which are circumferentially butted and combined at left and right positions.

Wherein, the second left half-ring body 21 is formed with a main cable hole with a semi-arc concave structure, and the main cable hole is formed with a straight hole structure on the second left half-ring body 21. The front end of the second left half ring body 21 is used for butting the rear end of the first left half ring body 11 of the first cable buckle section 1, the butting end face of the second left half ring body 21 is superposed with the vertical face of the main cable hole formed by the second left half ring body, namely, the butting end face of the second left half ring body 21 is matched with the vertical face of the main cable hole formed by the second left half ring body at an included angle of about 0 degree.

The front end of the second left half-ring body 21 has a second left flange 23 formed by radial extension, and a plurality of bolt holes and a plurality of positioning pin holes are uniformly distributed on the periphery of the second left flange 23, preferably, the bolt holes and the positioning pin holes are distributed in an alternating mode.

The second left half ring body 21 is provided with two rib plate structures protruding outwards and formed at intervals near the second left flange 23, and a second pull-down riding groove 26 left section gradually extends downwards from the top of the outer side of the ring body and is formed along the circumferential direction. The second left half ring body 21 has two rib plate structures protruding outward at intervals from the top area near the riding groove 26 to the middle-lower area at the rear end, and the left section of the second inclined riding groove 25 is formed by extending from the top in a gradient manner.

The upper side and the lower side of the periphery of the second left half ring body 21 are respectively provided with a radially extending connecting part, a plurality of bolt holes are uniformly distributed on each connecting part along the axial length direction, and each bolt hole is formed in a penetrating mode along the thickness direction of the corresponding connecting part. Of course, the upper connection portion of the second left half ring 21 should be avoided at the forming portion of the second pull-down straddling groove 26 and the second diagonal straddling groove 25.

The second right half ring body 22 is formed with a main cable hole having a semi-arc concave structure, and the main cable hole is formed in the second right half ring body 22 in a straight hole structure. The front end of the second right half ring body 22 is used for butting the rear end of the first right half ring body 12 of the first buckle section 1, the butting end face of the second right half ring body 22 is superposed with the vertical plane of the main cable hole formed by the second right half ring body, namely, the butting end face of the second right half ring body 22 is matched with the vertical plane of the main cable hole formed by the second right half ring body 22 by an included angle of about 0 degree.

The second right half ring body 22 has a second right flange 24 formed radially outwardly on the circumference of the front end portion thereof, and a plurality of bolt holes and a plurality of dowel holes are uniformly arranged on the circumference of the second right flange 24, preferably, the bolt holes and the dowel holes are arranged in an alternating manner. When the second right half ring body 22 is circumferentially butt-combined with the second left half ring body 21, the second right flange 24 and the second left flange 23 are substantially on the same plane.

The second right half ring body 22 is provided with two rib plate structures which are externally protruded and formed at intervals near the second right flange 24, and the right section of the second pull-down riding groove 26 is formed by gradually extending downwards from the top of the outer side of the ring body and basically along the circumferential direction; when the second right half ring body 22 and the second left half ring body 21 are circumferentially butted and combined, the right section of the second pull-down straddling groove 26 is circumferentially butted with the left section of the second pull-down straddling groove 26 to form a rib plate structure which is formed by protruding two ribs at intervals downwards from the periphery of the top part, so that the complete second pull-down straddling groove 26 is formed in a gradual change manner. The right section of the second right half ring body 22, which is formed by extending from the top to the top gradually, is provided with two rib plate structures which are formed by protruding outwards and are formed at intervals between the top area of the riding groove 26 and the middle-lower area of the rear end; when the second right half ring body 22 and the second left half ring body 21 are circumferentially butted and combined, the right section of the second diagonal straddling groove 25 and the left section of the second diagonal straddling groove 25 are circumferentially butted to form a rib plate structure which protrudes from the top to the lower part of the rear end to form a complete second diagonal straddling groove 25 which is gradually formed.

The upper and lower sides of the periphery of the second right half ring body 22 are respectively provided with radially extending connection parts, a plurality of bolt holes are uniformly distributed on each connection part along the axial length direction, and each bolt hole is formed in a penetrating manner along the thickness direction of the corresponding connection part. Of course, the upper connection portion of the second right half ring 22 should be avoided at the forming position of the second pull-down straddling groove 26 and the second diagonal straddling groove 25. When the second right half ring body 22 and the second left half ring body 21 are circumferentially butted and combined, the bolt hole arrangement structure on the connection portion on each side is in a left-right position one-to-one corresponding fit relationship.

The second left half ring body 21 and the second right half ring body 22 form a circumferential butt joint combination through the respective upper and lower side coupling parts, and bolts are inserted into the corresponding one-to-one matching bolt holes formed at the coupling parts of each side butt joint combination to connect and lock the circumferential joints, so as to form a complete cylindrical structure cable buckle section, i.e. the second cable buckle section 2.

The backing plate 3 is of an annular structure and is composed of a left half ring 31 and a right half ring 32 which are in circumferential butt joint, and the annular outline structure of the whole backing plate 3 is matched with the flange structures at the rear end of the first cable buckle section 1 and the front end of the second cable buckle section 2. In addition to the circumferential contour structure, that is, the left half ring 31 has a hole pattern formed on its circumference to be able to form a one-to-one corresponding fit with the bolt holes and the positioning pin holes on the first left flange 13 and the second left flange 23, and the right half ring 32 has a hole pattern formed on its circumference to be able to form a one-to-one corresponding fit with the bolt holes and the positioning pin holes on the first right flange 14 and the second right flange 24.

The thickness (i.e., axial) profile of the backing plate 3 is a wedge-shaped structure with a bottom thickness greater than a top thickness, thereby forming a slope structure at the front and rear sides, respectively, and the included angle between the front and rear side surfaces of the backing plate 3 is about 1 °, i.e., the front side surface is inclined by about 0.5 ° compared to the vertical plane of the inner hole of the backing plate 3, and the rear side surface is inclined by about 0.5 ° compared to the vertical plane of the inner hole of the backing plate 3.

The rear end of the first cable buckle section 1 is axially butted with the front end of the second cable buckle section 2, and the backing plate 3 is clamped between the butting flanges of the first cable buckle section 1 and the second cable buckle section 2, namely, the flanges of the first cable buckle section 1 and the second cable buckle section 2 are axially butted through the backing plate 3. Specifically, the first left flange 13 of the first cable buckle section 1, the left half ring 31 of the backing plate 3 and the second left flange 23 of the second cable buckle section 2 are axially butted through a plurality of positioning pins to form circumferential positioning; axially butting the first right flange 14 of the first cable buckle section 1, the right half ring 32 of the backing plate 3 and the second right flange 24 of the second cable buckle section 2 through a plurality of positioning pins to form circumferential positioning; bolts penetrate through the bolt holes in one-to-one correspondence of the whole axial butt joint flange structure, so that the first cable buckle section 1 and the second cable buckle section 2 are combined in an axial butt joint mode, and a formed main cable hole is slightly provided with a break angle in the axial direction.

In the suspension bridge structure, the first cable-stayed straddle groove 15 and the second cable-stayed straddle groove 25 are used as suspension cables (suspension rods) connected in a straddle-rewinding manner in an obliquely outward-pulled arrangement, respectively. The first and second pull- down straddling grooves 16 and 26 respectively serve as slings (suspenders) that connect the vertical pull-down arrangements in a straddling-and-rewinding manner.

Example 2

The utility model discloses at the axial basically even equant divide into two sections, form first cable buckle section and second cable buckle section (see shown in figure 7), first cable buckle section and second cable buckle section butt joint combination in the axial and form complete central authorities and detain.

Specifically, the first cable buckle section is provided with a first left half ring body and a first right half ring body which are in butt joint combination with the left and right ring peripheries.

Wherein, the shaping has the main cable hole of half circular arc indent structure on the first left semi-ring body, and this main cable hole is with straight hole structure shaping on the first left semi-ring body. The rear end of the first left half ring body is used as the front end of a second left half ring body for butting a second cable buckle section, the butting end face of the first left half ring body is of an inclined plane structure, in more detail, the butting end face of the first left half ring body is matched with the vertical plane of a main cable hole formed by the first left half ring body at an included angle of about 0.5 degrees, in other words, the end face of the first left half ring body used for butting the second left half ring body is inclined at an angle of about 0.5 degrees to form the inclined plane structure.

The periphery of the rear end part of the first left half ring body is provided with a first left flange formed by radial extension, a plurality of bolt holes and a plurality of positioning pin holes are uniformly distributed on the periphery of the first left flange, and the bolt holes and the positioning pin holes are preferably distributed in an alternating mode.

The first left half ring body is close to the first left flange and provided with two rib plate structures which are formed by protruding from the inside and the outside at intervals, and a first pull-down riding groove left side section which is formed by gradually extending downwards from the top of the outer side of the ring body along the circumferential direction. The first left half ring body is close to between the top region of the first straddling groove and the middle-lower region of the front end, and is provided with two rib plate structures protruding outwards and formed at intervals, and the first inclined-pulling straddling groove left side section is formed by obliquely and gradually extending from the top.

The upper side and the lower side of the periphery of the first left half ring body are respectively provided with a radially extending connecting part, a plurality of bolt holes are uniformly distributed in the connecting part on each side along the axial length direction, and each bolt hole is formed in a penetrating mode along the thickness direction of the corresponding connecting part. Of course, the upper connecting part of the first left half ring body is formed at the forming part of the first pull-down riding groove and the first oblique riding groove and should be avoided.

The first right half ring body is formed with a main cable hole with a semi-arc concave structure, and the main cable hole is formed on the first right half ring body in a straight hole structure. The rear end of the first right half ring body is used for butting the front end of a second right half ring body of a second cable buckle section, and the butting end face of the first right half ring body is of a bevel structure, in more detail, the butting end face of the first right half ring body is matched with the vertical plane of the main cable hole formed by the first right half ring body at an included angle of about 0.5 degrees, in other words, the end face of the first right half ring body used for butting the second right half ring body is inclined at an angle of about 0.5 degrees to form a bevel structure.

The periphery of the rear end part of the first right half ring body is provided with a first right flange which is formed by radial extension, a plurality of bolt holes and a plurality of positioning pin holes are uniformly distributed on the periphery of the first right flange, and the bolt holes and the positioning pin holes are preferably distributed in an alternating mode. When the first right half ring body and the first left half ring body are in circumferential butt joint combination, the first right flange and the first left flange are basically positioned on the same plane.

The first right half ring body is close to the first right flange and is provided with a first pull-down riding groove right section which protrudes outwards and is formed by two rib plate structures at intervals, and extends downwards from the top of the outer side of the ring body and is formed by gradual change along the circumferential direction; when the first right half ring body and the first left half ring body are in circumferential butt joint combination, the first pull-down straddling groove right side section and the first pull-down straddling groove left side section are in circumferential butt joint to form a rib plate structure which is formed by protruding two ribs at intervals downwards from the top circumference, so that the complete first pull-down straddling groove is formed in a gradual change mode. The first right half ring body is close to the middle lower part area between the top area of the first pull-down straddle groove and the front end, and is provided with two rib plate structures which are externally protruded and formed at intervals, and a first inclined pull straddle groove right section which is formed by obliquely and gradually extending from the top of the outer side of the ring body; when first right half ring body and above-mentioned first left half ring body circumference butt joint combination, first draw to one side and ride groove right side section and first draw to one side and ride groove left side section circumference butt joint, form by the top towards front end lower part department evaginate two interval fashioned floor structures to the complete first oblique that gradually changes the shaping rides the groove.

The upper side and the lower side of the periphery of the first right half ring body are respectively provided with a radially extending connecting part, a plurality of bolt holes are uniformly distributed on each connecting part along the axial length direction, and each bolt hole is formed in a penetrating mode along the thickness direction of the corresponding connecting part. Of course, the upper side connecting part of the first right half ring body is formed at the forming part of the first pull-down riding groove and the first inclined riding groove and should be avoided. When the first right half ring body and the first left half ring body are circumferentially butted and combined, the bolt hole arrangement structures on the connecting parts at each side are in a left-right position one-to-one corresponding matching relationship.

The first left half ring body and the first right half ring body form a circumferential butt joint combination through the connection parts at the upper side and the lower side of each left half ring body and the first right half ring body, and bolts penetrate through corresponding matched bolt holes formed at the connection parts of the butt joint combination at each side to connect and lock the circumference of the left half ring body and the first right half ring body to form a complete cylindrical structure cable buckle section, namely a first cable buckle section.

Referring to fig. 7, the second cable segment 2 has a left half ring 21 and a right half ring 22 which are circumferentially butted and combined in a left-right position.

Wherein, the second left half-ring body 21 is formed with a main cable hole with a semi-arc concave structure, and the main cable hole is formed with a straight hole structure on the second left half-ring body 21. The front end of the second left half-ring body 21 is used as the rear end of the first left half-ring body for butting the first cable buckle section, and the butting end face of the second left half-ring body 21 is of an inclined plane structure, in more detail, the butting end face of the second left half-ring body 21 is matched with the vertical plane of the main cable hole formed by the second left half-ring body 21 at an included angle of about 0.5 degrees, in other words, the end face of the second left half-ring body 21 used for butting the first left half-ring body is inclined at about 0.5 degrees to form the inclined plane structure.

The front end of the second left half-ring body 21 has a second left flange 23 formed by radial extension, and a plurality of bolt holes and a plurality of positioning pin holes are uniformly distributed on the periphery of the second left flange 23, preferably, the bolt holes and the positioning pin holes are distributed in an alternating mode.

The second left half ring body 21 is close to the second left flange 23, and has two rib plate structures which are formed by protruding outwards and are gradually extended and formed from the top of the outer side of the ring body downwards basically along the circumferential direction, and a left section of a second pull-down riding groove 26 is formed. The second left half ring body 21 has two rib plate structures protruding outward at intervals between the top region near the second pull-down straddling groove 26 and the middle-lower region at the rear end, and the left section of the second oblique straddling groove 25 is formed by extending obliquely and gradually from the top of the outer side of the ring body.

The upper side and the lower side of the periphery of the second left half ring body 21 are respectively provided with a radially extending connecting part, a plurality of bolt holes are uniformly distributed on each connecting part along the axial length direction, and each bolt hole is formed in a penetrating mode along the thickness direction of the corresponding connecting part. Of course, the upper connection portion of the second left half ring 21 should be avoided at the forming portion of the second pull-down straddling groove 26 and the second diagonal straddling groove 25.

The second right half ring body 22 is formed with a main cable hole having a semi-arc concave structure, and the main cable hole is formed in the second right half ring body 22 in a straight hole structure. The front end of the second right half ring 22 is used for abutting against the rear end of the first right half ring of the first cable buckle section, and the abutting end surface of the second right half ring 22 is a bevel structure, in more detail, the abutting end surface of the second right half ring 22 is matched with the vertical plane of the main cable hole formed by the second right half ring 22 at an included angle of about 0.5 °, in other words, the end surface of the second right half ring 22 used for abutting against the first right half ring is inclined at an angle of about 0.5 ° to form a bevel structure.

The second right half ring body 22 has a second right flange 24 formed radially outwardly on the circumference of the front end portion thereof, and a plurality of bolt holes and a plurality of dowel holes are uniformly arranged on the circumference of the second right flange 24, preferably, the bolt holes and the dowel holes are arranged in an alternating manner. When the second right half ring body 22 is circumferentially butt-combined with the second left half ring body 21, the second right flange 24 and the second left flange 23 are substantially on the same plane.

The second right half ring body 22 is provided with two rib plate structures which are externally protruded and formed at intervals near the second right flange 24, and the right section of the second pull-down riding groove 26 is formed by gradually extending downwards from the top of the outer side of the ring body and basically along the circumferential direction; when the second right half ring body 22 and the second left half ring body 21 are circumferentially butted and combined, the right section of the second pull-down straddling groove 26 is circumferentially butted with the left section of the second pull-down straddling groove 26 to form a rib plate structure which is formed by protruding two ribs at intervals downwards from the periphery of the top part, so that the complete second pull-down straddling groove 26 is formed in a gradual change manner. The right half ring body 22 is provided with two rib plate structures which are externally protruded and formed at intervals between the top area close to the second pull-down straddling groove 26 and the middle-lower area at the rear end part, and the right side section of the second pull-down straddling groove 25 is formed by extending from the top in a gradient manner; when the second right half ring body 22 and the second left half ring body 21 are circumferentially butted and combined, the right section of the second diagonal straddling groove 25 and the left section of the second diagonal straddling groove 25 are circumferentially butted to form a rib plate structure which protrudes from the top to the lower part of the rear end to form a complete second diagonal straddling groove 25 which is gradually formed.

The upper and lower sides of the periphery of the second right half ring body 22 are respectively provided with radially extending connection parts, a plurality of bolt holes are uniformly distributed on each connection part along the axial length direction, and each bolt hole is formed in a penetrating manner along the thickness direction of the corresponding connection part. Of course, the upper coupling portion of the second right half ring 22 should be avoided at the forming position of the second pull-down straddling groove 26 and the second cable-stayed straddling groove 25. When the second right half ring body 22 and the second left half ring body 21 are circumferentially butted and combined, the bolt hole arrangement structure on the connection portion on each side is in a left-right position one-to-one corresponding fit relationship.

The second left half ring body 21 and the second right half ring body 22 form a circumferential butt joint combination through the respective upper and lower side coupling parts, and bolts are inserted into the corresponding one-to-one matching bolt holes formed at the coupling parts of each side butt joint combination to connect and lock the circumferential joints, so as to form a complete cylindrical structure cable buckle section, i.e. the second cable buckle section 2.

The rear end of the first cable buckle section is in axial butt joint with the front end of the second cable buckle section. Specifically, a first left flange of the first cable buckle section and a second left flange of the second cable buckle section are axially butted through a plurality of positioning pins to form circumferential positioning; axially butting a first right flange of the first cable buckle section and a second right flange of the second cable buckle section through a plurality of positioning pins to form circumferential positioning; bolts penetrate through the bolt holes in one-to-one correspondence of the whole axial butt joint flange structure, so that the first cable buckle section and the second cable buckle section are combined in an axial butt joint mode, and a formed main cable hole is slightly provided with a bevel in the axial direction.

In the suspension bridge structure, a first cable-stayed riding groove and a second cable-stayed riding groove are respectively used as suspension cables (suspension rods) which are obliquely and outwards pulled and arranged in a riding and rewinding mode. The first pull-down riding groove and the second pull-down riding groove are respectively used as slings (suspenders) which are connected with the vertical pull-down arrangement in a riding and rewinding mode.

It should be noted that, in this embodiment, only the schematic structural diagram of the second grommet section is drawn, and the structure of the first grommet section is not drawn, and the structure of the first grommet section is the same as the structure of the second grommet section, and the first grommet section and the second grommet section are substantially bilaterally symmetric.

Example 3

The rest of the present example is the same as example 1, except that: the axial direction of the backing plate is of an equal-thickness structure, and the whole main cable hole of the formed central buckle is of a straight hole structure.

Example 4

The rest of this example is the same as example 1, 2 or 3, except that: the central buckle is axially and uniformly divided into three sections, and the front end and the rear end of the cable buckle section in the middle form a butt flange structure respectively.

The above examples are only for illustrating the present invention and are not to be construed as limiting the same. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: the above embodiment can still be modified, or some technical features can be equivalently replaced, for example, the slope of the butt end face between adjacent cable buckle sections or the slope between the front and back side surfaces of the backing plate can be appropriately adjusted according to the catenary type of the midspan region of the main cable of the suspension bridge; and such modifications or substitutions do not depart from the spirit and scope of the present invention in its essence.

Claims (6)

1. The utility model provides a straddle type central button which characterized in that: the central buckle is of an axially segmented butt-joint combined structure, and each divided cable buckle segment is provided with a riding groove capable of connecting a sling;

the central buckle is axially divided into at least two cable buckle sections, a flange capable of being in axial butt joint combination is arranged between two adjacent cable buckle sections, a backing plate (3) with an annular structure is clamped between the axial butt joint flanges of the two adjacent cable buckle sections, the flanges of the two adjacent cable buckle sections are in axial butt joint through the backing plate (3), the two adjacent cable buckle sections are connected and combined together through a plurality of bolts which are arranged around the axial butt joint flange in a penetrating manner, and the plurality of bolts which are arranged around the axial butt joint flange in a penetrating manner penetrate through the backing plate (3);

the backing plate (3) is of a wedge-shaped structure with the bottom thickness larger than the top thickness, and an included angle between the two side surfaces of the backing plate (3) is less than or equal to 3 degrees.

2. The straddle-type center buckle of claim 1, wherein: the backing plate (3) is composed of a left half ring (31) and a right half ring (32) which are in circumferential butt joint.

3. The straddle-type center buckle of claim 1, wherein: and main cable holes with straight hole structures are formed in the cable buckle sections of the central buckle respectively, and the butt joint end faces of the cable buckle sections are matched with the vertical plane of the main cable holes formed by the cable buckle sections at an included angle of 0-3 degrees.

4. The straddle-type center buckle of claim 1, wherein: and a plurality of groups of positioning pin holes which correspond one to one are formed in the periphery of the butt flange between two adjacent cable buckle sections of the central buckle.

5. The straddle-type center buckle of claim 1, wherein: the central buckle is axially divided into two cable buckle sections.

6. The straddle-type center buckle according to claim 1 or 5, wherein: the cable buckle section is provided with a left half body and a right half body which are connected together in a left-right position through bolts, the upper side and the lower side of the periphery of the left half body are respectively provided with a connecting part which is matched with the right half body and is provided with a formed bolt hole, the upper side and the lower side of the periphery of the right half body are respectively provided with a connecting part which is matched with the left half body and is provided with a formed bolt hole, and bolt holes on the connecting parts on the two sides of the left half body and bolt holes on the connecting parts on the two sides of the right half body are respectively in one-to-one corresponding matching relation.

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