Temporary limiting device

Abstract

The utility model discloses a temporary limiting device which mainly comprises a base, a rotary table, a puller bolt and two limiting columns, the arrangement direction of the two limiting columns is parallel to the direction needing to be limited, so that a limiting protruding block is limited, and the direction of the two limiting columns is adjusted through the rotary table, so that the limiting protruding block is limited. The arrangement direction of the two limiting columns is perpendicular to the required limiting direction, so that the steel truss girder can be adjusted between the two limiting columns in the limiting direction, and the position of the steel truss girder can be adjusted while the two limiting columns are limited by the steel truss girder limiting device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bridge construction, especially relates to a temporary spacing device. BACKGROUND

[0002] Steel truss bridge is a kind of widely used modern bridge, its advantages are simple erection, large span, light weight, excellent structure, stable and firm, short construction period etc., when the cantilever assembly of steel truss bridge is carried out, the cantilever is usually assembled by adopting the mode of combination of fixed structure and buckling cable.

[0003] In the prior art, when the cantilever assembly is carried out, the cantilever is usually assembled by dividing into multiple beam segments, and a fixed structure is arranged between the beam segment on the top of the pier and the pier to assist the installation of the pier.

[0004] The fixed structure mainly comprises an upper cross beam, a lower longitudinal beam, a pull rod (finely rolled threaded steel) and a limiting block, when the fixed structure is assembled, a steel cover beam is installed on the top of the pier, the upper cross beam is arranged on the upper surface of the lower chord steel truss cross beam of the beam segment (0# beam segment) on the top of the pier, the lower longitudinal beam is suspended on the bottom surface of the steel cover beam by the pull rod, and the upper cross beam, the lower longitudinal beam and the steel cover beam are fixed by the pull rod, so as to fix the 0# beam segment, and the lower side of the lower chord steel truss cross beam is provided with a fixed limiting protrusion, after the installation of all beam segments of the cantilever is completed, the limiting block is arranged on the steel cover beam and the lower chord steel truss cross beam, and the limiting block abuts against the limiting protrusion to limit the displacement along the bridge direction and the transverse bridge direction, however, there are still some problems to be improved when the cantilever assembly is carried out.

[0005] 1. When the cantilever assembly is carried out, the lower chord steel truss cross beam needs to be adjusted according to the position of the subsequently installed lower chord steel truss cross beam or the construction requirement, therefore, the limiting block is usually installed late, however, in the process of assembly, the steel truss beam may be displaced along the bridge direction or the transverse bridge direction due to the influence of wind force, vibration and the like, thereby affecting the assembly progress.

[0006] Therefore, an urgent need exists for a temporary spacing device, which can limit the position of each steel truss beam during the assembly stage and also allow the position of the steel truss beam to be adjusted. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a temporary spacing device to solve the above technical problems.

[0008] In order to achieve the above purpose, the utility model adopts the technical scheme that

[0009] A kind of temporary limiting device, including base, is equipped with rotary round groove, and the circumferential outer wall of base is equipped with multiple jackscrews holes being sequentially spaced;Rotary table, one end rotatably arranged in rotary round groove;Multiple jackscrews, one end of multiple jackscrews is respectively passed through multiple jackscrews holes, and with the circumferential side wall of rotary table abuts, jackscrew and jackscrew hole bolt connection;And two limit posts, oppositely set on the upper side of rotary table, and with the detachable connection of rotary table.

[0010] In some embodiments, the circumferential outer wall of the limit post is provided with a plurality of curved bosses, and the plurality of curved bosses are sequentially and spacedly arranged along the axial direction of the limit post.

[0011] In some embodiments, the curved boss adopts an elliptical structure.

[0012] In some embodiments, the upper surface of the rotary table is provided with two first rotary grooves, and one end of the two limit posts is rotatably arranged in the two first rotary grooves.

[0013] In some embodiments, it further includes a jacking screw, the bottom wall of the first rotary groove is provided with a second rotary groove, the axial center of the limit post is provided with a through hole, the upper end of the through hole and the circumferential groove wall of the second rotary groove are both provided with internal threads, the two ends of the jacking screw are both provided with external threads, one end of the jacking screw passes through the through hole and is threadedly connected with the second rotary groove, and the other end of the jacking screw is threadedly connected with the upper end of the through hole.

[0014] In some embodiments, the limit post, the jacking screw, the first rotary groove and the second rotary groove are coaxially arranged.

[0015] In some embodiments, the circumferential wall of the lower end of the rotary table is provided with a ring-shaped groove, one end of the jacking screw is matched with the ring-shaped groove, and the jacking screw is tightly pressed against the circumferential groove wall of the ring-shaped groove.

[0016] In some embodiments, the bottom wall surface of the rotary round groove is provided with a plurality of sequentially spaced rolling grooves, and the rolling grooves are provided with matched first rolling balls, and the first rolling balls abut against the end face of the lower end of the rotary table.

[0017] In some embodiments, the circumferential side wall of the rotary table is provided with a plurality of sequentially spaced second rolling balls, and the second rolling balls abut against the circumferential groove wall of the rotary round groove.

[0018] In some embodiments, the axial outer wall of the rotary table is provided with a plurality of rotary handles.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] The utility model discloses, through the arrangement direction of two limit posts is parallel with the required limit direction, thereby to the limit protruding piece is limited, and through the direction of two limit posts is adjusted by the turntable, make the arrangement direction of two limit posts is perpendicular with the required limit direction, thereby make steel truss can be adjusted along the limit direction between two limit posts, further make this device to the limit of two limit posts, still can carry out the adjustment of position. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment, it should be understood, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation of range, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0022] Figure 1 It is the transverse bridge direction schematic drawing when the temporary limit device of the embodiment of the application limits steel truss along the bridge direction and the transverse bridge direction;

[0023] Figure 2 It is the side surface section schematic diagram of the temporary limit device of the embodiment of the application;

[0024] Figure 3 It is the overhead schematic diagram after the temporary limit device of the embodiment of the application installs the roller;

[0025] Figure 4 It is the side surface schematic diagram of the temporary limit device of the embodiment of the application;

[0026] Figure 5 It is the section schematic diagram of the turntable of the temporary limit device of the embodiment of the application;

[0027] Figure 6 It is the front surface schematic diagram of the turntable of the temporary limit device of the embodiment of the application;

[0028] Figure 7 It is the Figure 2 The enlarged schematic diagram of mark A in the embodiment of the application;

[0029] Figure 8 It is the side surface schematic diagram after the temporary limit device of the embodiment of the application installs the roller;

[0030] Reference signs:

[0031] 100-base, 110-rotating round tank, 120-tight bolt hole, 130-first ball, 140-thread hole,

[0032] 200 - turntable, 210 - first rotating groove, 220 - second rotating groove, 230 - annular groove, 240 - second ball,

[0033] 300 - top bolt,

[0034] 400 - limiting column, 410 - curved boss, 420 - through hole,

[0035] 500 - top screw rod,

[0036] 600 - rotating handle,

[0037] 700 - rolling groove,

[0038] 800 - steel truss, 810 - limiting protrusion,

[0039] 900 - roller,

[0040] 1000 - rotating shaft,

[0041] 1100 - steel cover beam. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0043] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0044] In the description of the utility model, it should be explained that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0045] In addition, if the terms "first", "second", "third" and the like appear, they are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0046] In addition, if the terms "horizontal", "vertical", "suspended" and the like appear, it does not mean that the component must be absolutely horizontal or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0047] In the description of the utility model, it should be explained that, unless otherwise specified and limited, if the terms "set", "install", "connect", "connect" and the like appear, it should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0048] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0049] It should be understood that when the cantilever assembly is carried out, the steel truss 800 needs to be adjusted according to the position of the subsequently installed steel truss 800 or the construction requirement, therefore, the limiting block is usually installed late, however, in the process of assembly, the steel truss 800 may be displaced along the longitudinal direction or transverse direction due to wind force, vibration and the like, thereby affecting the assembly progress.

[0050] In order to improve the above problems, the embodiment provides a temporary limiting device, mainly including a base 100, a rotating table 200, a plurality of jacking bolts 300 and two limiting columns 400. The device mainly temporarily limits the steel truss 800, and the assembled steel truss 800 can also be adjusted in position.

[0051] In the embodiment, as shown in Figures 1-4 The base 100 is provided with a rotating circular groove 110, and the circumferential outer wall of the base 100 is provided with a plurality of jacking bolt holes 120 which are sequentially and spaced apart, wherein the base 100 can adopt a cylindrical body, a rectangular body or a trapezoidal body structure, in the embodiment, the base 100 adopts a rectangular body structure, the rotating circular groove 110 is arranged at the center of the base 100, and the four side wall surfaces of the base 100 are each provided with a jacking bolt hole 120, wherein the jacking bolt hole 120 is in communication with the rotating circular groove 110.

[0052] The rotating table 200 is arranged on the upper side of the base 100, specifically, the rotating table 200 adopts a cylindrical structure, one end of the rotating table 200 is adapted to the rotating circular groove 110, so that the rotating table 200 can rotate relative to the base 100.

[0053] Multiple tightening bolts 300 are respectively connected to multiple tightening bolt holes 120. Specifically, one end of the multiple tightening bolts 300 passes through the multiple tightening bolt holes 120 respectively and abuts against the circumferential side walls of the turntable 200. The tightening bolts 300 are bolted to the tightening bolt holes 120. When the turntable 200 needs to rotate, the four tightening bolts 300 are loosened, and one end of the four tightening bolts 300 is separated from the side wall of the turntable 200. The side wall of the turntable 200 can rotate relative to the base 100. When the turntable 200 completes the rotation, the four tightening bolts 300 are tightened, and one end of the four tightening bolts 300 abuts against the side wall of the turntable 200, thereby fixing the turntable 200.

[0054] The two limiting columns 400 both adopt a cylindrical structure and are relatively arranged on the upper side of the turntable 200. The two limiting columns 400 are both detachably connected to the turntable 200. Specifically, the two limiting columns 400 are both vertically arranged on the upper surface of the turntable 200.

[0055] In this embodiment, when it is necessary to limit the steel truss 800, the two limit columns 400 are installed on the upper side of the turntable 200, and then the device is pushed or moved to the lower side of the limit protrusion 810. At this time, the two limit columns 400 are respectively located on both sides of the limit protrusion 810, and then the turntable 200 is rotated so that the arrangement direction of the two limit columns 400 is consistent with the limiting direction. At the same time, the opposite side walls of the two limit columns 400 are respectively close to the side walls on the other two sides of the limiting protrusion 810, thereby limiting the limiting protrusion 810. When it is necessary to adjust the steel truss 800, the turntable 200 can be rotated so that the arrangement direction of the two limit columns 400 is perpendicular to the limiting direction, so that the limiting protrusion 810 can be displaced along the limiting direction between the two limit columns 400. When the adjustment is completed, the turntable 200 is rotated again so that the arrangement direction of the two limit columns 400 is parallel to the limiting direction, thereby limiting again.

[0056] In this embodiment, the limiting protrusion 810 is limited by making the arrangement direction of the two limiting columns 400 parallel to the required limiting direction, and the directions of the two limiting columns 400 are adjusted by the turntable 200 so that the arrangement direction of the two limiting columns 400 is perpendicular to the required limiting direction, so that the steel truss 800 can be adjusted along the limiting direction between the two limiting columns 400, thereby allowing the device to limit the two limiting columns 400 while also adjusting their positions.

[0057] The lower side of the steel truss 800 is usually provided with a limiting protrusion 810 for limiting the longitudinal and transverse directions of the bridge. In this embodiment, the steel truss 800 can be limited in the longitudinal or transverse directions of the bridge by rotating the turntable 200.

[0058] In some embodiments, as Figures 1-4As shown, the outer wall of the limiting column 400 is provided with a plurality of curved bosses 410, and the plurality of curved bosses 410 are sequentially and spacedly arranged along the axial direction of the limiting column 400. The curved boss 410 can adopt an elliptical shape, a circular arc shape, etc. In the embodiment, the curved boss 410 adopts an elliptical structure. Specifically, one end of each of the plurality of curved bosses 410 of the same limiting column 400 is away from the limiting column 400, and the other end is close to the limiting column 400. Thus, the limiting column 400 can adjust the position of the curved boss 410 abutting against the limiting boss 810 by rotating, and further adjust the size of the limiting space between the two limiting columns 400, so as to limit the limiting column 400 of different sizes. At the same time, the curved boss 410 on the limiting column 400 abuts against the limiting boss 810, and the limiting precision of the limiting boss 810 is high. When the limiting boss 810 enters the limiting space, the size of the space between the two limiting columns 400 can be adjusted by rotating the limiting column 400, so that the limiting boss 810 enters the limiting space between the two limiting columns 400 more easily.

[0059] In some embodiments, as shown in FIGS. 2 and Figure 5 The device further includes a jacking screw 500, the bottom wall of the first rotating groove 210 is provided with a second rotating groove 220, the axial center of the limiting column 400 is provided with a through hole 420, the upper end of the through hole 420 and the circumferential groove wall of the second rotating groove 220 are both provided with internal threads, the two ends of the jacking screw 500 are both provided with external threads, one end of the jacking screw 500 passes through the through hole 420 and is threadedly connected with the second rotating groove 220, and the other end of the jacking screw 500 is threadedly connected with the upper end of the through hole 420. The limiting column 400, the jacking screw 500, the first rotating groove 210 and the second rotating groove 220 are coaxially arranged. When limiting, the two limiting columns 400 are first installed into the two first rotating grooves 210, respectively, then the two limiting columns 400 are rotated so that the curved bosses 410 of the two limiting columns 400 abut against the surface of the limiting boss 810, then the jacking screw 500 passes through the through hole of the limiting column 400, and one end of the jacking screw 500 is threadedly connected with the second rotating groove 220, and the other end is threadedly connected with the circumferential inner wall of the top end of the through hole, so as to fix the limiting column 400.

[0060] In some embodiments, as shown in FIGS. 2 and Figure 2 , Figure 5 and Figure 6As shown, the outer wall of the lower end of the rotating table 200 is circumferentially provided with a ring groove 230, one end of the jacking bolt 300 is matched with the ring groove 230, the jacking bolt 300 passes through the jacking bolt hole 120, and the jacking bolt 300 is in abutment with the circumferential groove wall of the ring groove 230, thereby fixing the rotating table 200. Wherein, the one end of the jacking bolt 300 is in diameter gap cooperation with the groove walls on the upper and lower sides of the ring groove 230, when the rotating table 200 needs to rotate, the jacking bolt 300 is loosened, the one end of the jacking bolt 300 is away from the circumferential groove wall of the ring groove, and is not separated from the ring groove 230, thereby limiting the rotating table 200, so that the rotation of the rotating table 200 is stable.

[0061] In some embodiments, as shown in Figure 2 and Figure 7 As shown, the bottom wall surface of the rotating circular groove 110 and the circumferential side wall of the rotating table 200 are both provided with a plurality of rolling grooves 700 arranged in sequence, specifically, the rolling groove 700 arranged on the bottom wall surface of the rotating circular groove 110 is provided with a matched first rolling ball 130, and the rolling groove 700 arranged on the circumferential side wall of the rotating table 200 is provided with a matched second rolling ball 240, the first rolling ball 130 and the second rolling ball 240 can roll in the rolling groove 700 and not separate from the rolling groove 700, wherein the first rolling ball 130 abuts against the end face of the lower end of the rotating table 200, and the second rolling ball 240 abuts against the circumferential groove wall of the rotating circular groove 110, thereby making the rotating table 200 rotate more conveniently and with less resistance, and thus not needing to use a larger force to rotate.

[0062] In this embodiment, a plurality of first rolling balls 130 are arranged in sequence along the circumferential and radial direction of the bottom end groove wall of the rotating circular groove 110, and a plurality of second rolling balls 240 are arranged in sequence along the circumferential and axial direction of the side wall of the rotating table 200.

[0063] In some embodiments, as shown in Figures 1-2 The circumferential outer wall of the rotating table 200 is provided with a plurality of rotating handles 600, thereby making the rotation of the rotating table 200 more convenient.

[0064] In this embodiment, as shown in Figure 3 , Figure 4 and Figure 8 The opposite side walls of the base 100 are both provided with a detachable roller 900, specifically, the roller 900 and the side wall of the base 100 are connected through an axis 1000, and the roller 900 can roll relative to the axis 1000.

[0065] Wherein, the side wall of the base 100 is provided with a plurality of thread holes 140 consistent with the number of the rollers 900, one end of each of the plurality of axes 1000 is threadedly connected with a thread hole 140, and the other end of the axis 1000 is rotatably connected with the roller 900, thereby making the displacement of the base 100 more convenient.

Claims

1. A temporary positioning device, characterized in that, The utility model relates to a base (100) is equipped with rotating round groove (110), and the circumferential outer wall of base (100) is equipped with a plurality of top bolt hole (120) in sequence interval is equipped with, Rotary table (200) one end rotatable setting in rotating round groove (110) inside, A plurality of top bolt (300) a plurality of top bolt (300) one end respectively passes a plurality of top bolt hole (120), and with rotary table (200) circumferential side wall abuts, top bolt (300) and top bolt hole (120) are threadedly connected, and Two limit posts (400) are oppositely arranged on the upper side of the rotary table (200) and detachably connected with the rotary table (200). The circumferential outer wall of the limit post (400) is provided with a plurality of curved bosses (410), and the plurality of curved bosses (410) are sequentially and spacedly arranged along the axial direction of the limit post (400).

2. The temporary stopper according to claim 1, wherein: The curved boss (410) adopts an elliptical structure.

3. The temporary stopper according to claim 2, wherein: The upper surface of the rotary table (200) is provided with two first rotating grooves (210), and one end of the two limit posts (400) is rotatably arranged in the two first rotating grooves (210) respectively.

4. The temporary stopper according to claim 3, wherein: It also includes a tightening screw (500), the bottom wall of the first rotating groove (210) is provided with a second rotating groove (220), the axial center of the limit post (400) is provided with a through hole (420), the upper end of the through hole (420) and the circumferential groove wall of the second rotating groove (220) are both provided with internal threads, the two ends of the tightening screw (500) are both provided with external threads, one end of the tightening screw (500) passes through the through hole (420) and is threadedly connected with the second rotating groove (220), and the other end of the tightening screw (500) is threadedly connected with the upper end of the through hole (420).

5. The temporary stopper according to claim 4, wherein: The limit post (400), the tightening screw (500), the first rotating groove (210) and the second rotating groove (220) are coaxially arranged.

6. The temporary stopper according to claim 5, wherein: The circumferential wall of the lower end of the rotary table (200) is provided with a ring-shaped groove (230), one end of the top bolt (300) is matched with the ring-shaped groove (230), and the circumferential groove wall of the ring-shaped groove (230) is tightly pressed.

7. The temporary positioning device of claim 1, wherein: The bottom wall surface of the rotating round groove (110) is provided with a plurality of sequentially and spacedly arranged rolling grooves (700), the rolling groove (700) is provided with a matched first rolling ball (130) inside, and the first rolling ball (130) abuts against the end face of the lower end of the rotary table (200).

8. The temporary stopper of claim 7, wherein: The circumferential side wall of the rotary table (200) is provided with a plurality of sequentially and spacedly arranged second rolling balls (240), and the second rolling balls (240) abut against the circumferential groove wall of the rotating round groove (110).

9. The temporary stopper of claim 8, wherein: The axial outer wall of the rotary table (200) is provided with a plurality of rotating handles (600).

10. The temporary stop according to claim 9, wherein: ​

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