CN113186805A - Prefabricated bridge steel structure prefabricated part - Google Patents
Prefabricated bridge steel structure prefabricated part Download PDFInfo
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- CN113186805A CN113186805A CN202110396715.3A CN202110396715A CN113186805A CN 113186805 A CN113186805 A CN 113186805A CN 202110396715 A CN202110396715 A CN 202110396715A CN 113186805 A CN113186805 A CN 113186805A
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- shaped joint
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Structural Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to an assembled bridge steel structure prefabricated member, which comprises a rod body, an adjusting sleeve, a connecting sleeve, an O-shaped joint, a U-shaped joint, a pin shaft rod, a locking unit and a limiting ring, wherein the left end and the right end of the rod body are respectively provided with the rod body again through the adjusting sleeve, the right end of the rod body on the right side is provided with the O-shaped joint through the connecting sleeve, the left end of the rod body on the left side is provided with the U-shaped joint through the connecting sleeve, pin shaft through holes are respectively formed in the O-shaped joint and the U-shaped joint, the pin shaft rod is arranged in the pin shaft through hole of the U-shaped joint, the locking unit is arranged between the; the invention can solve the problems existing in the prior art in the process of assembling bridge prefabricated parts: the difficulty and the cost of transporting the existing bridge steel pull rod are improved due to the overlong length of the existing bridge steel pull rod; the structure of the junction of the existing bridge steel pull rod is simple, and the connected bridge steel pull rod is not stable enough.
Description
Technical Field
The invention relates to the field of bridge components, in particular to an assembly type bridge steel structure prefabricated member.
Background
The assembled bridge is different from the traditional bridge construction modes such as reinforcement binding and concrete pouring in site construction, and for the assembled bridge, partial or all components of the lower part structure (pier stud, bearing platform and cover beam) and the upper part structure (box beam, plate beam, T beam and steel pull rod) of the bridge are transported to a construction site to be hoisted and spliced into a bridge main body after being processed and formed in a prefabricated component factory;
the steel pull rod is assembled by a rod body and a connecting piece and is used for bearing an axial tensile steel component in a building structure, and the steel pull rod is usually made of alloy steel and has good comprehensive performance through technologies such as forging, heat treatment and the like, so that the transportation and splicing of the steel pull rod are very important;
however, the prior art generally has the following problems in the process of assembling the bridge prefabricated member:
1. the existing bridge steel pull rod is too long, so that the difficulty of transporting the bridge steel pull rod and the transportation cost are improved;
2. the structure of the junction of the existing bridge steel pull rod is simple, and the connected bridge steel pull rod is not stable enough.
Disclosure of Invention
In order to solve the problems, the invention provides an assembly type bridge steel structure prefabricated member which comprises a rod body, an adjusting sleeve, a connecting sleeve, an O-shaped joint, a U-shaped joint, a pin shaft rod, a locking unit and a limiting ring, wherein the left end and the right end of the rod body are respectively provided with the rod body again through the adjusting sleeve, the right end of the rod body on the right side is provided with the O-shaped joint through the connecting sleeve, the left end of the rod body on the left side is provided with the U-shaped joint of the U-shaped structure through the connecting sleeve, the right side of the O-shaped joint corresponds to the left side of the U-shaped joint, the O-shaped joint and the U-shaped joint are respectively provided with a pin shaft through hole, the pin shaft rod is arranged in the pin shaft through hole of the U-shaped joint, the locking unit is arranged between the pin shaft rod and the U-shaped joint, the upper end and the lower end of the pin shaft rod are symmetrically provided with the limiting ring, and the limiting rings are respectively connected with the U-shaped joint, wherein:
the locking unit comprises a push rod, a push block, a connecting rod, a self-locking branched chain, a first spring plate, a first pressure spring, a driven block, a locking branched chain, a second spring plate and a second pressure spring, wherein the middle part of a pin shaft rod is provided with an installation groove, the upper side in the installation groove is provided with the push rod in a vertical sliding fit manner, the lower end of the push rod is sequentially provided with the push block and the connecting rod in a staggered manner, the push block is of a triangular structure, the upper side in the installation groove is provided with the self-locking branched chain at the left side and the right side of the push rod, the left side and the right side of the push rod are provided with the first spring plate at the opposite side below the self-locking branched chain and are longitudinally connected with the installation groove wall through the first pressure spring, the driven block is arranged at the left side and the right side of the push block in a sliding fit manner, rectangular grooves corresponding to the driven block are uniformly arranged in pin shaft through holes of the U-shaped joint and the O-shaped joint, and the opposite sides of the driven block are downwards inclined at the upper end, and the upper end of the pushing block is bilaterally symmetrically provided with chutes corresponding to the opposite sides of the driven blocks, the upper ends of the driven blocks on the upper side and the lower side are respectively provided with a locking branched chain, the lower ends of the driven blocks are respectively provided with a second spring plate, and the second spring plates are respectively and transversely connected with the wall of the mounting groove through second pressure springs.
As a preferred technical scheme of the invention, the self-locking branched chain comprises self-locking grooves, a third pressure spring, self-locking blocks and self-locking grooves, the self-locking grooves are formed in the left side and the right side of the upper side of the mounting groove, the third pressure spring is arranged in each self-locking groove, the self-locking blocks are symmetrically arranged on the opposite sides of the third pressure spring, the locking blocks and the self-locking grooves are in sliding fit from side to side, and the self-locking grooves corresponding to the locking blocks are symmetrically formed in the left side and the right side of the upper end of the push rod.
As a preferred technical scheme of the invention, the locking branched chain comprises a locking groove, a rubber elastic block, a locking block and a locking groove, the upper ends of driven blocks at the upper side and the lower side are respectively provided with the locking groove, the rubber elastic block and the locking block are sequentially arranged in the locking groove from bottom to top, the locking block is arranged in the locking groove in a vertically sliding fit manner, and the upper side of a rectangular groove on the U-shaped joint is respectively provided with the locking groove corresponding to the locking block.
As a preferred technical scheme of the invention, the adjusting sleeve and the connecting sleeve are both cylindrical structures, threads are symmetrically arranged on the left side and the right side inside the adjusting sleeve, threads are also arranged inside the connecting sleeve, the rod body is connected with the adjusting sleeve and the connecting sleeve through thread matching, guide cylinders are arranged at the left end and the right end of the adjusting sleeve and the opposite side of the connecting sleeve through rotating matching, limiting bulges are uniformly arranged inside the guide cylinders along the circumferential direction of the guide cylinders, and limiting sliding grooves corresponding to the limiting bulges are arranged at the left end and the right end of the rod body.
As a preferred technical scheme of the invention, the limiting ring is in threaded connection with the push rod, the opposite sides of the limiting ring are provided with thread cylinders with annular structures, the upper end and the lower end of the U-shaped joint are symmetrically provided with thread grooves corresponding to the thread cylinders, and the thread cylinders are arranged in the thread grooves in a thread fit mode.
According to a preferable technical scheme of the invention, the left end and the right end of the rod body are both provided with the inserting circular grooves, the inner side of the middle part of the adjusting sleeve is provided with the circular connecting plate, the left side and the right side of the circular connecting plate are symmetrically provided with the inserting rods corresponding to the inserting circular grooves, the opposite sides of the O-shaped joint and the U-shaped joint are positioned in the connecting sleeve and are also provided with the inserting rods, and the inserting rods and the inserting circular grooves are in interference fit.
As a preferred technical scheme of the invention, the outer side surface of the adjusting sleeve is uniformly provided with first wrench grooves along the circumferential direction, the upper ends and the lower ends of the connecting sleeve and the guide cylinder are symmetrically provided with second wrench grooves, and the right side of the upper end of the U-shaped joint is provided with an arc mark bulge; when the adjusting sleeve and the connecting sleeve need to rotate, a wrench is used for fixing the two guide cylinders through the wrench grooves on the guide cylinders, and then the wrench is used for driving the adjusting sleeve and the connecting sleeve to rotate through the wrench groove I on the adjusting sleeve and the wrench groove II on the connecting sleeve; when the pin shaft rod is required to be inserted into the pin shaft through hole, the arc mark protrusion can mark the upper end of the U-shaped joint, so that the situation that the locking unit cannot lock the U-shaped joint and the O-shaped joint due to the fact that the pin shaft rod is not inserted in the opposite direction can be avoided.
The invention has the beneficial effects that:
the invention can solve the following problems in the process of assembling bridge prefabricated parts in the prior art: a. the existing bridge steel pull rod is too long, so that the difficulty of transporting the bridge steel pull rod and the transportation cost are improved; b. the structure of the connecting part of the existing bridge steel pull rod is simpler, and the connected bridge steel pull rod is not stable enough;
the rod body of the bridge steel pull rod can be disassembled into a shorter size, so that the difficulty and the cost of transporting the rod body are reduced, and the efficiency of transporting the bridge steel pull rod is improved;
the locking unit can be used for quickly and stably connecting the U-shaped joint and the O-shaped joint, so that the efficiency of connecting the U-shaped joint and the O-shaped joint is improved, and the stability of the U-shaped joint and the O-shaped joint after connection is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view (from the front to the back) of the present invention;
FIG. 4 is an enlarged view taken along line A of FIG. 3 in accordance with the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 3 of the present invention;
fig. 6 is an enlarged view of the invention taken along line C in fig. 3.
In the figure, 1, a rod body; 2. an adjustment sleeve; 3. a connecting sleeve; 4. an O-shaped joint; 5. a U-shaped joint; 6. a pin shaft lever; 7. A locking unit; 8. a limiting ring; 9. a guide cylinder; 11. inserting a circular groove; 21. a circular connecting plate; 22. a plug rod; 71. pushing the rod; 72. a pushing block; 73. a connecting rod; 74. a self-locking branched chain; 75. a first spring plate; 76. a first pressure spring; 77. a driven block; 78. Locking the branched chain; 79. a second spring plate; 710. a second pressure spring; 741. a self-locking groove; 742. a third pressure spring; 743. a self-locking block; 744. A self-locking groove; 781. a locking groove; 782. a rubber spring block; 783. a locking block; 784. locking the groove; 81. a threaded barrel.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining with the specific figures. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1 to 6, an assembly type bridge steel structure prefabricated member comprises a rod body 1, an adjusting sleeve 2, a connecting sleeve 3, an O-shaped joint 4, a U-shaped joint 5, a pin rod 6, a locking unit 7 and a limiting ring 8, the left end and the right end of the rod body 1 are respectively provided with the rod body 1 again through the adjusting sleeve 2, the right end of the right rod body 1 is provided with an O-shaped joint 4 through the connecting sleeve 3, the left end of the left rod body 1 is provided with a U-shaped joint 5 with a U-shaped structure through the connecting sleeve 3, the right side of the O-shaped joint 4 corresponds to the left side of the U-shaped joint 5, pin shaft through holes are respectively arranged on the O-shaped joint 4 and the U-shaped joint 5, a pin shaft lever 6 is arranged in the pin shaft through hole of the U-shaped joint 5, a locking unit 7 is arranged between the pin shaft rod 6 and the U-shaped joint 5, limiting rings 8 are symmetrically arranged at the upper end and the lower end of the pin shaft rod 6, and the limiting rings 8 are connected with the U-shaped joint 5;
when the device works specifically, the device is convenient to transport and install and is provided with a relatively stable connecting end; when the invention is required to be transported, all accessories of the invention can be transported, the problem that in the prior art, the rod body 1 is long and the length is spliced between the rod bodies 1 through the adjusting sleeve 2, the rod body 1 is spliced between the O-shaped joint 4 and the U-shaped joint 5 through the connecting sleeve 3, then the other O-shaped joint 4 is inserted into the U-shaped joint 5, then the pin rod 6 is inserted into the pin shaft through hole from top to top, so that the other O-shaped joint 4 can be connected with the U-shaped joint 5, the pin rod 6 is locked between the U-shaped joint 5 and the O-shaped joint 4 through the locking unit 7, the stability of the invention after installation is increased, then the limiting ring 8 is installed on the outer side of the locking rod, and the opposite side of the limiting ring 8 is connected with the U-shaped joint 5, so that the locking degree between the U-shaped joint 5 and the pin shaft rod 6 is increased is avoided, finally, the length of the spliced cable can be finely adjusted through the adjusting sleeve 2 and the connecting sleeve 3, so that the applicability of the spliced cable is improved.
The adjusting sleeve 2 and the connecting sleeve 3 are both of cylindrical structures, threads are symmetrically arranged on the left side and the right side inside the adjusting sleeve 2, threads are also arranged inside the connecting sleeve 3, the rod body 1 is connected with the adjusting sleeve 2 and the connecting sleeve 3 through thread matching, the left end and the right end of the adjusting sleeve 2 and the opposite side of the connecting sleeve 3 are respectively provided with a guide cylinder 9 through rotating matching, limiting bulges are uniformly arranged inside the guide cylinder 9 along the circumferential direction of the guide cylinder, and the left end and the right end of the rod body 1 are respectively provided with a limiting sliding chute corresponding to the limiting bulges;
when the connecting device is required to be installed, the rod body 1 is inserted into the guide cylinder 9, the rod body 1 can be connected with the adjusting sleeve 2 and the connecting sleeve 3 in a threaded fit mode, the guide cylinder 9 is fixed at the moment, the adjusting sleeve 2 is rotated, the rod bodies 1 on the left side and the right side of the adjusting sleeve 2 can synchronously move towards the adjusting sleeve 2 in a threaded fit mode, the limiting bulges can limit the rod body 1 through the limiting sliding grooves at the moment, the rod body 1 can be prevented from moving along with the rotation of the adjusting sleeve 2, the rod bodies 1 on the two sides of the adjusting sleeve 2 are driven to synchronously move towards the adjusting sleeve 2, and the efficiency of connecting the rod bodies 1 is improved; when the O-shaped joint 4, the U-shaped joint 5 and the rod body 1 need to be connected, the rod body 1 is inserted into the connecting sleeve 3, the guide cylinder 9 is fixed, and then the O-shaped joint 4 and the U-shaped joint 5 are rotated, so that the rod body 1 can be connected with the O-shaped joint 4 and the U-shaped joint 5; when the installation of the invention is finished, the length of the invention can be finely adjusted by rotating the adjusting sleeve 2 and the connecting sleeve 3 again, thereby improving the applicability of the invention.
The left end and the right end of the rod body 1 are both provided with an inserting circular groove 11, the inner side of the middle part of the adjusting sleeve 2 is provided with a circular connecting plate 21, the left side and the right side of the circular connecting plate 21 are symmetrically provided with inserting rods 22 corresponding to the inserting circular grooves 11, the opposite sides of the O-shaped joint 4 and the U-shaped joint 5 are positioned in the connecting sleeve 3 and are also provided with the inserting rods 22, and the inserting rods 22 are in interference fit with the inserting circular grooves 11;
when the connecting rod is used for connecting the rod body 1, the adjusting sleeve 2 and the connecting sleeve 3, the inserting rod 22 can be inserted into the inserting circular groove 11, the stability of the connecting rod after installation can be improved through interference fit of the inserting rod 22 and the inserting circular groove 11, and the shapes of the two ends of the rod body 1 are consistent, so that the convenience of the connecting rod is improved, and the universality of the rod body 1, the connecting sleeve 3 and the adjusting sleeve 2 is also improved.
The outer side surface of the adjusting sleeve 2 is uniformly provided with first wrench grooves along the circumferential direction, the upper end and the lower end of the connecting sleeve 3 and the guide cylinder 9 are symmetrically provided with second wrench grooves, and the right side of the upper end of the U-shaped joint 5 is provided with an arc mark bulge; when the adjusting sleeve 2 and the connecting sleeve 3 need to rotate, a wrench is used for fixing the two pairs of guide cylinders 9 through wrench grooves on the guide cylinders 9, and then the wrench is used for driving the adjusting sleeve 2 and the connecting sleeve 3 to rotate through a first wrench groove on the adjusting sleeve and a second wrench groove on the connecting sleeve; when the pin shaft rod 6 is required to be inserted into the pin shaft through hole, the arc mark protrusion can mark the upper end of the U-shaped joint 5, and the problem that the locking unit 7 cannot lock the U-shaped joint 5 and the O-shaped joint 4 due to the fact that the pin shaft rod 6 is not aligned in the insertion direction can be avoided.
The locking unit 7 comprises a push rod 71, a push block 72, a connecting rod 73, a self-locking branched chain 74, a first spring plate 75, a first pressure spring 76, a driven block 77, a locking branched chain 78, a second spring plate 79 and a second pressure spring 710, wherein an installation groove is formed in the middle of the pin shaft rod 6, the push rod 71 is arranged on the upper side in the installation groove in a vertical sliding fit manner, the push block 72 and the connecting rod 73 are sequentially arranged at the lower end of the push rod 71 in a staggered manner, the push block 72 is of a triangular structure, the self-locking branched chains 74 are arranged on the left side and the right side of the push rod 71 on the upper side in the installation groove, the first spring plate 75 is arranged on the opposite side of the left side and the right side of the push rod 71 below the self-locking branched chain 74, the first spring plate 75 is longitudinally connected with the installation groove wall through the first pressure spring 76, the driven blocks 77 are arranged on the left side and the right side of the push block 72 in the installation groove in a sliding fit manner, and rectangular grooves corresponding to the driven blocks 77 are uniformly arranged in pin shaft through holes of the U-shaped joint 5 and the O-shaped joint 4, the opposite sides of the driven block 77 are both provided with upper ends which are inclined downwards, the upper ends of the pushing blocks 72 are symmetrically provided with inclined grooves corresponding to the opposite sides of the driven block 77, the upper ends of the driven blocks 77 on the upper side and the lower side are both provided with locking branched chains 78, the lower ends of the driven blocks 77 are both provided with spring plates II 79, and the spring plates II 79 are both transversely connected with the wall of the mounting groove through pressure springs II 710;
during specific work, the locking unit 7 can rapidly connect the U-shaped joint 5, the pin shaft rod 6 and the O-shaped joint 4; after the other O-shaped joint 4 is inserted into the inner side of the U-shaped joint 5, the pin shaft rod 6 is inserted into the other side from one side with the arc mark protrusion along the pin shaft through hole, then the push rod 71 is pressed, so that the push rod 71 can drive the push block 72 and the connecting rod 73 to move downwards, at the moment, the push block 72 can drive the driven block 77 to move towards the left side and the right side, and when the push block 72 moves to a proper position, the driven block 77 can drive the driven block 77 to be inserted into the chute under the action of the second compression spring 710, at the moment, the push block 72 can be inserted into rectangular grooves on the U-shaped joint 5 and the O-shaped joint 4, so that the rectangular blocks can lock the U-shaped joint 5 and the O-shaped joint 4, and the locking efficiency between the U-shaped joint 5 and the O-shaped joint 4 is improved; meanwhile, the self-locking branched chain 74 can lock the push rod 71, so that the phenomenon that the locking degree of the U-shaped joint 5 and the O-shaped joint 4 is reduced due to the displacement of the push rod 71 can be avoided, and the locking branched chain 78 can lock the rectangular groove on the U-shaped joint 5 more stably, so that the stability of the invention after installation is improved.
The self-locking branched chain 74 comprises self-locking grooves 741, pressure springs three 742, self-locking blocks 743 and self-locking grooves 744, the self-locking grooves 741 are formed in the left side and the right side of the upper side of the mounting groove, the pressure springs three 742 are arranged in the self-locking grooves 741, the self-locking blocks 743 are symmetrically arranged on the opposite sides of the pressure springs three 742, the locking blocks 783 are in sliding fit with the self-locking grooves 741 from left to right, and the self-locking grooves 744 corresponding to the locking blocks 783 are symmetrically formed in the left side and the right side of the upper end of the push rod 71;
during specific work, the self-locking branched chain 74 can lock the push rod 71; after pushing the catch bar 71 to a proper position, the self-locking block 743 moves to one side of the catch bar 71 under the action of the three pressure springs 742, so that the self-locking block 743 is inserted into the self-locking groove 744, the self-locking block 743 can lock the catch bar 71, the locking degree of the U-shaped joint 5 and the O-shaped joint 4 caused by the displacement of the catch bar 71 can be prevented from being reduced, and the locking effect between the U-shaped joint 5 and the O-shaped joint 4 is improved.
The locking branched chain 78 comprises locking grooves 781, rubber elastic blocks 782, locking blocks 783 and locking grooves 784, the locking grooves 781 are formed in the upper ends of the driven blocks 77 on the upper side and the lower side, the rubber elastic blocks 782 and the locking blocks 783 are sequentially arranged in the locking grooves 781 from bottom to top, the locking blocks 783 are installed in the locking grooves 781 in an up-and-down sliding fit mode, and the locking grooves 784 corresponding to the locking blocks 783 are formed in the upper sides of the rectangular grooves on the U-shaped joint 5; when the U-shaped plate fixing device works specifically, after the driven blocks 77 on the upper side and the lower side are inserted into the rectangular grooves in the U-shaped plate, the rubber elastic block 782 can push the locking block 783 to be upwards inserted into the locking groove 784, so that the effect of fixing the U-shaped joint 5 by the pin shaft rod 6 is increased.
The limiting ring 8 is in threaded connection with the push rod, thread cylinders 81 with annular structures are arranged on the opposite sides of the limiting ring 8, thread grooves corresponding to the thread cylinders 81 are symmetrically formed in the upper end and the lower end of the U-shaped joint 5, and the thread cylinders 81 are installed in the thread grooves in a thread fit mode; during specific work, after the pin shaft rod 6 is connected with the O-shaped joint 4 and the U-shaped joint 5, the threaded cylinder 81 at the lower end of the limiting ring 8 is inserted into the threaded groove, and then the limiting ring 8 is rotated, so that the limiting ring 8 can be simultaneously connected with the pin shaft rod 6 and the U-shaped joint 5 in a thread fit mode, and the stability of connection between the pin shaft rod 6 and the U-shaped joint 5 is improved.
During operation, the first step: inserting the rod body 1 into the guide cylinder 9, enabling the rod body 1 to be connected with the adjusting sleeve 2 and the connecting sleeve 3 through thread matching, fixing the guide cylinder 9 through a wrench groove on the guide cylinder 9 by using a wrench, driving the guide cylinder 9 to rotate through a wrench groove I on the adjusting sleeve 2 and a wrench groove II on the connecting sleeve 3 by using a wrench, and limiting the limiting sliding groove by using the limiting protrusion;
the second step is that: after the rod body 1 is spliced with the O-shaped joint 4 and the U-shaped joint 5, the other O-shaped joint 4 is inserted into the U-shaped joint 5, the pin shaft rod 6 is inserted into the other side of the U-shaped joint from one side with the arc mark protrusion along the pin shaft through hole, then the push rod 71 is pressed, so that the push rod 71 can drive the push block 72 and the connecting rod 73 to move downwards, at the moment, the push block 72 can drive the driven block 77 to move towards the left side and the right side, and when the push block 72 moves to a proper position, the driven block 77 can drive the driven block 77 to be inserted into the chute under the action of the second compression spring 710, at the moment, the push block 72 can be inserted into rectangular grooves formed in the U-shaped joint 5 and the O-shaped joint 4, and the rectangular blocks can lock the U-shaped joint 5 and the O-shaped joint 4;
the third step: after the push rod 71 is pushed to a proper position, the self-locking block 743 synchronously moves to one side of the push rod 71 under the action of the pressure spring three 742, so that the self-locking block 743 is inserted into the self-locking groove 744, the self-locking block 743 can lock the push rod 71, and after the driven blocks 77 on the upper side and the lower side are inserted into the rectangular grooves in the U-shaped plate, the rubber elastic block 782 can push the locking block 783 to be upwards inserted into the locking groove 784;
the fourth step: after the connection of the pin shaft lever 6 with the O-shaped joint 4 and the U-shaped joint 5 is completed, the threaded cylinder 81 at the lower end of the limit ring 8 is inserted into the threaded groove, and then the limit ring 8 is rotated, so that the limit ring 8 can be simultaneously connected with the pin shaft lever 6 and the U-shaped joint 5 in a thread fit manner.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an assembled bridge steel construction prefab, includes the body of rod (1), adjusting sleeve (2), connecting sleeve (3), O shape connects (4), U-shaped connects (5), round pin axle lever (6), locking unit (7) and spacing ring (8), its characterized in that: body of rod (1) about both ends all be provided with body of rod (1) once more through adjusting sleeve (2), body of rod (1) right-hand member on right side is provided with O shape through connecting sleeve (3) and connects (4), left body of rod (1) left end is provided with U-shaped joint (5) of U-shaped structure through connecting sleeve (3), and the right side and the U-shaped of O shape joint (4) connect (5) left side corresponding, round pin axle through-hole has all been seted up on O shape joint (4) and U-shaped joint (5), be provided with round pin shaft pole (6) in the round pin axle through-hole of U-shaped joint (5), and be provided with locking unit (7) between round pin shaft pole (6) and U-shaped joint (5), round pin shaft pole (6) upper and lower both ends symmetry are provided with spacing ring (8), and spacing ring (8) all are connected with U-shaped joint (5), wherein:
the locking unit (7) comprises a push rod (71), a push block (72), a connecting rod (73), a self-locking branched chain (74), a first spring plate (75), a first pressure spring (76), a driven block (77), a locking branched chain (78), a second spring plate (79) and a second pressure spring (710), wherein a mounting groove is formed in the middle of the pin rod (6), the push rod (71) is arranged on the upper side in the mounting groove in an up-and-down sliding fit mode, the push block (72) and the connecting rod (73) are sequentially arranged at the lower end of the push rod (71) in a staggered mode, the push block (72) is of a triangular structure, the self-locking branched chains (74) are arranged on the left side and the right side of the push rod (71) on the upper side in the mounting groove, the first spring plate (75) is arranged on the opposite side below the self-locking branched chain (74) on the left side and the right side of the push rod (71), and the first spring plate (75) is longitudinally connected with the mounting groove wall through the first pressure spring (76), the mounting groove is internally provided with driven blocks (77) on the left side and the right side of the pushing block (72) in a sliding fit mode, rectangular grooves corresponding to the driven blocks (77) are uniformly formed in pin shaft through holes of the U-shaped joints (5) and the O-shaped joints (4), the opposite sides of the driven blocks (77) are downward inclined at the upper ends, inclined grooves corresponding to the opposite sides of the driven blocks (77) are symmetrically formed in the left and right sides of the upper end of the pushing block (72), locking branched chains (78) are arranged at the upper ends of the driven blocks (77) on the upper side and the lower side, spring plates II (79) are arranged at the lower ends of the driven blocks (77), and the spring plates II (79) are transversely connected with the mounting groove wall through pressure springs II (710).
2. An assembled bridge steel structural preform according to claim 1, wherein: the self-locking branched chain (74) comprises self-locking grooves (741), three pressure springs (742), three self-locking blocks (743) and self-locking grooves (744), the self-locking grooves (741) are formed in the left side and the right side of the upper side of the mounting groove, the three pressure springs (742) are arranged in the self-locking grooves (741), the three self-locking blocks (743) are symmetrically arranged on the opposite sides of the three pressure springs (742), the locking blocks (783) are in sliding fit with the self-locking grooves (741) in the left and right directions, and the self-locking grooves (744) corresponding to the locking blocks (783) are symmetrically formed in the left and right directions of the upper end of the push rod (71).
3. An assembled bridge steel structural preform according to claim 1, wherein: locking branch chain (78) including locking groove (781), rubber bullet piece (782), latch segment (783) and locking recess (784), locking groove (781) have all been seted up to driven piece (77) upper end of upper and lower both sides, from up having set gradually rubber bullet piece (782) and latch segment (783) down in locking groove (781), and latch segment (783) are installed in locking groove (781) through upper and lower sliding fit's mode, the rectangular channel upside that is located on U-shaped joint (5) has all been seted up and has been locked recess (784) corresponding with latch segment (783).
4. An assembled bridge steel structural preform according to claim 1, wherein: adjusting sleeve (2) and connecting sleeve (3) be the cylinder structure, adjusting sleeve (2) inside left and right sides symmetry is provided with the screw thread, the inside screw thread that also is provided with of connecting sleeve (3), and the body of rod (1) all through screw-thread fit with adjusting sleeve (2), connecting sleeve (3) are connected, the opposite side of both ends and connecting sleeve (3) all is provided with guide cylinder (9) through normal running fit about adjusting sleeve (2), guide cylinder (9) are inside evenly to be provided with spacing arch along its circumference, the spacing spout corresponding with spacing arch is all seted up at both ends about the body of rod (1).
5. An assembled bridge steel structural preform according to claim 1, wherein: the limiting ring (8) is in threaded connection with the push rod, thread cylinders (81) of an annular structure are arranged on the opposite sides of the limiting ring (8), thread grooves corresponding to the thread cylinders (81) are symmetrically formed in the upper end and the lower end of the U-shaped joint (5), and the thread cylinders (81) are installed in the thread grooves in a thread fit mode.
6. An assembled bridge steel structural preform according to claim 1, wherein: the novel connecting rod is characterized in that the left end and the right end of the rod body (1) are provided with the inserting circular grooves (11), the inner side of the middle of the adjusting sleeve (2) is provided with a circular connecting plate (21), the left side and the right side of the circular connecting plate (21) are symmetrically provided with inserting rods (22) corresponding to the inserting circular grooves (11), the opposite sides of the O-shaped connector (4) and the U-shaped connector (5) are located inside the connecting sleeve (3) and are also provided with the inserting rods (22), and the inserting rods (22) and the inserting circular grooves (11) are in interference fit.
7. An assembled bridge steel structural preform according to claim 4, wherein: the outer side surface of the adjusting sleeve (2) is uniformly provided with first wrench grooves along the circumferential direction, the upper end and the lower end of the connecting sleeve (3) and the upper end and the lower end of the guide cylinder (9) are symmetrically provided with second wrench grooves, and the right side of the upper end of the U-shaped joint (5) is provided with an arc mark bulge.
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| CN202110396715.3A CN113186805B (en) | 2021-04-13 | 2021-04-13 | Prefabricated member of steel structure of assembled bridge |
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| CN202110396715.3A CN113186805B (en) | 2021-04-13 | 2021-04-13 | Prefabricated member of steel structure of assembled bridge |
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| CN113186805B (en) | 2022-12-13 |
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Effective date of registration: 20221123 Address after: 272000 Hougang village, Wangyin Town, high tech Zone, Jining City, Shandong Province Applicant after: SHANDONG DACHENG STEEL STRUCTURE ENGINEERING Co.,Ltd. Address before: 044000 No.3, Dexin Road, Yanhu District, Yuncheng City, Shanxi Province Applicant before: Fan Tao |
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