Bracket counter-pulling integral pre-pressing device

Abstract

The utility model provides a support counter-pull integral pre-pressing device, which relates to the technical field of bridge construction equipment, and comprises a pre-pressing assembly, an anchoring assembly and a jacking assembly, the jacking assembly is arranged at the top of an external support, and the pre-pressing assembly is arranged at the top of the jacking assembly; one end of the anchoring assembly is connected with the pre-pressing assembly, the other end of the anchoring assembly is used for being connected with an external bridge structure, and the anchoring assembly is used for pressing the pre-pressing assembly on the jacking assembly; the jacking assembly is used for generating downward pressure on the support by jacking the pre-pressing assembly upwards. The bridge prepressing device solves the technical problems that in the prior art, a bridge prepressing device is inconvenient to mount and dismount, and pressure cannot be correspondingly adjusted according to actual requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bridge construction equipment, and especially relates to a support reverse pulling overall preloading device. BACKGROUND

[0002] In house building, highway and railway bridge and municipal building engineering, many main body's auxiliary projects adopt support method construction, and support preloading is an important link in support construction.

[0003] When adopting support method to carry out concrete pouring construction, especially in the pouring of low-altitude or high-altitude concrete structure such as beam bridge cantilever construction, in order to test the installation quality and overall bearing capacity of the support, eliminate the inelastic deformation of the support and observe the elastic deformation amount of the support, generally, the support is preloaded by 1.2 times of the maximum construction load before concrete pouring.

[0004] However, the existing preloading device often has the technical problem of inconvenient installation and disassembly, and cannot meet the demand of pressure test on the bridge support part. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a support reverse pulling overall preloading device to alleviate the technical problems of inconvenient installation and disassembly of the bridge preloading device in the prior art and the inability to adjust the pressure according to actual demand.

[0006] To achieve the above-mentioned purpose, the utility model embodiment adopts the following technical scheme:

[0007] Firstly, the utility model provides a support reverse pulling overall preloading device, which comprises a preloading assembly, an anchoring assembly and a jacking assembly.

[0008] One end of the anchoring assembly is connected with the preloading assembly, and the other end is used for connecting with an external bridge structure, and the anchoring assembly is used for pressing the preloading assembly on the jacking assembly.

[0009] The jacking assembly is used for generating downward pressure on the support by pressing the preloading assembly upward.

[0010] Further, the jacking assembly comprises a jack and a lower cross beam, and the lower cross beam is connected with the support along a first direction.

[0011] The jack is arranged between the lower cross beam and the preloading assembly, and the jack is used for generating downward pressure on the lower cross beam by pressing the preloading assembly upward.

[0012] Further, the jacks are provided in multiple groups, and the multiple groups of jacks are distributed at intervals along the lower cross beam.

[0013] Each group of jacks is provided with at least two jacks, and the two jacks in the same group are respectively arranged below the sides of the corresponding pre-pressing assemblies.

[0014] Further, the pre-pressing assembly comprises a pre-pressing roof beam and a pre-pressing cross beam, and the pre-pressing cross beam is connected with the roof-up assembly along a first direction.

[0015] The pre-pressing roof beam is pressed on the pre-pressing cross beam along a second direction, and the pre-pressing roof beam is connected with the anchoring assembly.

[0016] The second direction is perpendicular to the first direction.

[0017] Further, the pre-pressing roof beam is a cuboid frame structure, and support ribs are arranged in the pre-pressing roof beam at intervals along a vertical direction.

[0018] Further, the pre-pressing roof beam is provided with multiple through holes, and the pre-pressing roof beam is used to be connected with the anchoring assembly through the through holes.

[0019] Further, the through holes are provided in the form of long holes.

[0020] The anchoring assembly is used to move in the through holes to determine the connection position of the anchoring assembly with the pre-pressing roof beam.

[0021] Further, the pre-pressing assembly is provided with two pre-pressing roof beams, and the two pre-pressing roof beams are distributed side by side.

[0022] Further, the pre-pressing roof beam is a cuboid structure, and the pre-pressing roof beam is provided with two groups of anchoring assemblies.

[0023] The two groups of anchoring assemblies are arranged at two ends of the pre-pressing roof beam.

[0024] Further, the anchoring assembly comprises a connecting piece and a threaded steel, one end of the threaded steel is connected with the bridge structure, and the other end is connected with the internal thread of the connecting piece, so as to tightly press the connecting piece on the top of the pre-pressing roof beam.

[0025] The utility model can realize the following beneficial effects:

[0026] The utility model provides a kind of support reverse pull overall pre-pressing device, including pre-pressing component, anchoring component and jacking assembly, jacking assembly is set in the support top of external connection, and the top of jacking assembly is equipped with pre-pressing component;One end of anchoring component is connected with pre-pressing component, the other end is used to be connected with the bridge structure of external connection, anchoring component is used to press pre-pressing component on jacking assembly;Jacking assembly is pressed by pre-pressing component upwards, to be used to generate the pressure of support.

[0027] In the utility model, the top and bottom of jacking assembly are connected with pre-pressing component and support respectively, and anchoring component is connected with pre-pressing component and bridge structure respectively;When using, the height of pre-pressing component is limited by anchoring component first, that is, pre-pressing component cannot break through the height limited by anchoring component;Then, jacking assembly is started, and its output end is jacked upwards, and because anchoring component limits pre-pressing component, jacking assembly is affected by the reaction force of pre-pressing component, and force is transmitted downwards, so that support bears pressure, to realize the pre-pressing detection of support.

[0028] Compared with prior art, the support reverse pull overall pre-pressing device provided by the utility model limits pre-pressing component by anchoring component, and then pre-pressing component is jacked tightly to anchoring component by jacking assembly, at this time, jacking assembly is affected by reaction force, to realize the pressure applied to support, and then realize the pre-pressing detection of support.

[0029] In summary, the utility model at least alleviates the technical problems of inconvenient installation and disassembly of bridge pre-pressing device in prior art, and inability to adjust pressure according to actual demand. ACCURACY

[0030] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will briefly introduce the drawings needed to be used in specific embodiment or prior art description, obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0031] Figure 1 The front view structural schematic diagram of the support reverse pull overall pre-pressing device provided by the embodiment of the utility model is provided;

[0032] Figure 2 The front view structural schematic diagram of the pre-pressing roof beam part of the support reverse pull overall pre-pressing device provided by the embodiment of the utility model is provided;

[0033] Figure 3 The top view structural schematic diagram of the pre-pressing roof beam part of the support reverse pull overall pre-pressing device provided by the embodiment of the utility model is provided.

[0034] Icon: 1 - pre-press assembly; 11 - pre-press roof beam; 111 - support rib; 112 - through hole; 12 - pre-press cross beam; 2 - anchoring assembly; 21 - connecting piece; 22 - threaded steel; 3 - jack; 4 - lower cross beam; 5 - support. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0037] 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 subsequent drawings.

[0038] In the description of the present application, it should be noted that the terms "upper", "lower", "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 in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0040] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term "arrangement", "installation", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to specific circumstances.

[0041] Some embodiments of the utility model are described in detail below in conjunction with the drawings.In the case of no conflict, the following examples and features in examples can be combined with each other.

[0042] Example one

[0043] The embodiment provides a support reverse pulling overall pre-pressing device, referring to Figure 1 The support reverse pulling overall pre-pressing device comprises a pre-pressing assembly 1, an anchoring assembly 2 and a jacking assembly, the jacking assembly is arranged at the top of the external support 5, and the top of the jacking assembly is provided with the pre-pressing assembly 1;One end of the anchoring assembly 2 is connected with the pre-pressing assembly 1, the other end is used for being connected with the external bridge structure, and the anchoring assembly 2 is used for pressing the pre-pressing assembly 1 on the jacking assembly;The jacking assembly is used for generating downward pressure on the support 5 by pressing the pre-pressing assembly 1 upwards.

[0044] The embodiment of the utility model at least alleviates the technical problems of inconvenient installation and disassembly of the bridge pre-pressing device in the prior art and inability to adjust the pressure according to actual needs.

[0045] In the embodiment of the utility model, the top and bottom of the jacking assembly are connected with the pre-pressing assembly 1 and the support 5 respectively, and the anchoring assembly 2 is connected with the pre-pressing assembly 1 and the bridge structure respectively;In use, the height of the pre-pressing assembly 1 is first limited by the anchoring assembly 2, that is, the pre-pressing assembly 1 cannot break through the height limited by the anchoring assembly 2;Then the jacking assembly is started to make its output end jacked upwards, and because the anchoring assembly 2 limits the pre-pressing assembly 1, the jacking assembly will transmit force downward due to the reaction force of the pre-pressing assembly 1, and then the support 5 will bear pressure, so as to realize pre-pressing detection of the support 5.

[0046] Compared with the prior art, the support reverse pulling overall pre-pressing device provided by the embodiment of the utility model limits the pre-pressing assembly 1 through the anchoring assembly 2, and then jacks up the pre-pressing assembly 1 to the anchoring assembly 2 through the jacking assembly, at this time the jacking assembly is subjected to reaction force, so as to realize the application of pressure on the support 5, and then realize the pre-pressing detection of the support 5.

[0047] In the alternative embodiment of the embodiment, referring to Figure 1The jacking assembly comprises a jack 3 and a lower cross beam 4, the lower cross beam 4 is connected with the support 5 along the first direction; the jack 3 is arranged between the lower cross beam 4 and the pre-pressing assembly 1, and the jack 3 is used to generate a downward pressure on the lower cross beam 4 by pressing upward on the pre-pressing assembly 1.

[0048] Specifically, the lower cross beam 4 is horizontally arranged on the support 5, and the lower cross beam 4 is provided with more than one jack 3 on the upper surface along the extending direction of the lower cross beam 4, each jack 3 is vertically arranged, and the top of the jack 3 is provided with the pre-pressing assembly 1; in use, the jack 3 is started by an external controller, at this time, the output end of the top of the jack 3 is jacked upward, and because the pre-pressing assembly 1 is limited and fixed by the anchoring assembly 2, the jack 3 cannot continue to jack upward, and the reaction force of the pre-pressing assembly 1 will act on the lower cross beam 4, and then the force will be transmitted from top to bottom to the support 5, forming a pressure on the support 5, thereby realizing the pre-pressing detection of the support 5.

[0049] Further, referring to Figure 1 , the jacks 3 are arranged in multiple groups, and the multiple groups of jacks 3 are distributed at intervals along the lower cross beam 4; each group of jacks 3 is provided with at least two jacks 3, and the two jacks 3 in the same group are arranged below the corresponding pre-pressing assembly 1.

[0050] Specifically, the jacks 3 are arranged in multiple groups, and each group of jacks 3 is provided with at least two jacks 3; in use, the two jacks 3 in each group are preferably symmetrically arranged below the two sides of the pre-pressing assembly 1, so as to ensure smoothness during the operation of jacking up by the jacks 3, thereby ensuring construction safety.

[0051] In an optional embodiment of the present embodiment, referring to Figure 1 , the pre-pressing assembly 1 comprises a pre-pressing roof beam 11 and a pre-pressing cross beam 12, the pre-pressing cross beam 12 is connected with the jacking assembly along the first direction; the pre-pressing roof beam 11 is pressed on the pre-pressing cross beam 12 along the second direction, and the pre-pressing roof beam 11 is connected with the anchoring assembly 2; the second direction is perpendicular to the first direction.

[0052] Specifically, the pre-pressing cross beam 12 is connected with the top of each jack 3 along the first direction, that is, the extending direction of the pre-pressing cross beam 12 is the same as that of the lower cross beam 4, and the pre-pressing roof beam 11 is arranged on the top of the pre-pressing cross beam 12 along the second direction, that is, the pre-pressing roof beam 11 and the pre-pressing cross beam 12 are perpendicular to each other; in use, the pre-pressing roof beam 11 is connected with the anchoring assembly 2, so as to realize the height-limiting fixation of the pre-pressing roof beam 11 by the anchoring assembly 2.

[0053] Further, referring to Figure 2 , the pre-pressing roof beam 11 is a rectangular frame structure, and support ribs 111 are arranged in the pre-pressing roof beam 11 at intervals along the vertical direction.

[0054] Specifically, the pre-press top beam 11 is a cuboid frame structure, and more than one supporting rib 111 is vertically and spacedly arranged in the pre-press top beam 11 along the extending direction of the pre-press top beam 11, and the supporting rib 111 is used for supporting the top and bottom of the pre-press top beam 11 to enhance the supporting strength of the pre-press top beam 11.

[0055] In an optional embodiment of the present embodiment, referring to Figure 3 , the pre-press top beam 11 is provided with a plurality of through holes 112, and the pre-press top beam 11 is used to connect with the anchoring assembly 2 through the through holes 112.

[0056] Specifically, the upper surface and the lower surface of the pre-press top beam 11 are correspondingly provided with the through holes 112, and the through holes are more than one, so as to facilitate the construction personnel to select to set the anchoring assembly 2 at the corresponding position of the through hole 112 according to the actual use requirement, that is, to set the anchoring assembly 2 at the corresponding position of the pre-press top beam 11.

[0057] Further, referring to Figure 3 , the through hole 112 is provided in the form of a long hole; the anchoring assembly 2 is used to move in the through hole 112 to determine the connection position of the anchoring assembly 2 with the pre-press top beam 11.

[0058] Specifically, the through hole 112 is provided in the form of a long hole, and the long hole-shaped through hole 112 is consistent along the extending direction of the pre-press top beam 11, and the through hole 112 can be more than one, and the plurality of through holes 112 are relatively distributed along the center of the pre-press top beam 11, so as to adjust the anchoring assembly 2 installed in the opposite through holes 112 to the symmetrical position.

[0059] In an optional embodiment of the present embodiment, referring to Figure 3 , the pre-press assembly 1 is provided with two pre-press top beams 11, and the two pre-press top beams 11 are distributed side by side.

[0060] Specifically, the pre-press assembly 1 is provided with two pre-press top beams 11, and the two pre-press top beams 11 are distributed side by side; preferably, each pre-press top beam 11 is provided with two groups of anchoring assemblies 2, that is, each group of pre-press assemblies 1 includes four groups of anchoring assemblies 2, so that the pre-press assembly 1 is more stable in rotation.

[0061] In an optional embodiment of the present embodiment, referring to Figure 2 or Figure 3 , the pre-press top beam 11 is a cuboid structure, and the pre-press top beam 11 is provided with two groups of anchoring assemblies 2; the two groups of anchoring assemblies 2 are separately arranged at the two ends of the pre-press top beam 11.

[0062] Specifically, the two groups of anchoring assemblies 2 are separately arranged at the two ends of the pre-press top beam 11; preferably, the positions of the two groups of anchoring assemblies 2 on the pre-press top beam 11 are adjusted, so that the two groups of anchoring assemblies 2 are symmetrically distributed relative to the center of the pre-press top beam 11, thereby ensuring that the pre-press top beam 11 is horizontally and stably placed.

[0063] Further, referring to Figure 2 The anchoring assembly 2 comprises a connecting piece 21 and a threaded steel 22, one end of the threaded steel 22 is connected with the bridge structure, and the other end is connected with the internal thread of the connecting piece 21, so as to tightly press the connecting piece 21 on the top of the pre-pressed roof beam 11.

[0064] Specifically, the connecting piece 21 is in sliding connection with the through hole 112, and the inner wall of the connecting piece 21 is provided with a thread, the threaded steel 22 is connected with the connecting piece 21, the height of the connecting piece 21 is adjusted by rotating the connecting piece 21 relative to the threaded steel 22, and the threaded steel 22 is connected with the bridge structure at one end and is in a vertical state; in use, the corresponding connecting piece 21 is fixed at the required height, and the pre-pressed roof beam 11 is limited by the connecting piece 21.

[0065] It should be noted that the embedded depth of the threaded steel 22 can be 1.5 m, and the distance from the edge of the bearing platform is 2.25 m.

[0066] Finally, it should be noted that each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to. The above embodiments in the specification are used to illustrate the technical solutions of the utility model, but not to limit them. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced. The modification or replacement does not change the essence of the corresponding technical solution, and does not change the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A support counter-pulling integral pre-pressing device, characterized in that, The pre-pressing assembly (1), the anchoring assembly (2) and the jacking assembly are provided, the jacking assembly is arranged on the top of the external support (5), and the top of the jacking assembly is provided with the pre-pressing assembly (1); One end of the anchoring assembly (2) is connected with the pre-pressing assembly (1), and the other end is used for being connected with an external bridge structure, and the anchoring assembly (2) is used for pressing the pre-pressing assembly (1) on the jacking assembly; The jacking assembly is used for generating a downward pressure on the support (5) by pressing the pre-pressing assembly (1) upward.

2. The whole-body pre-stressing device according to claim 1, wherein The jacking assembly comprises a jack (3) and a lower cross beam (4), and the lower cross beam (4) is connected with the support (5) in a first direction; The jack (3) is arranged between the lower cross beam (4) and the pre-pressing assembly (1), and the jack (3) is used for generating a downward pressure on the lower cross beam (4) by pressing the pre-pressing assembly (1) upward.

3. The whole-body pre-stressing device according to claim 2, wherein A plurality of jacks (3) are arranged, and the plurality of jacks (3) are arranged at intervals along the lower cross beam (4); Each group of jacks (3) is provided with at least two jacks (3), and the two jacks (3) in the same group are arranged below the corresponding pre-pressing assembly (1) respectively.

4. The support counter-pulling integral pre-pressing device according to claim 1, characterized in that, The pre-pressing assembly (1) comprises a pre-pressing roof beam (11) and a pre-pressing cross beam (12), and the pre-pressing cross beam (12) is connected with the jacking assembly in a first direction; The pre-pressing roof beam (11) is arranged on the pre-pressing cross beam (12) in a second direction, and the pre-pressing roof beam (11) is connected with the anchoring assembly (2); The second direction is perpendicular to the first direction.

5. The device according to claim 4, wherein The pre-pressing roof beam (11) is a cuboid frame structure, and a support rib (111) is arranged in a vertical direction in the pre-pressing roof beam (11).

6. The device according to claim 4, wherein The pre-pressing roof beam (11) is provided with a plurality of through holes (112), and the pre-pressing roof beam (11) is connected with the anchoring assembly (2) through the through holes (112).

7. The device according to claim 6, wherein The through hole (112) is in the shape of a long hole; The anchoring assembly (2) is used for moving in the through hole (112) to determine the connection position of the anchoring assembly (2) and the pre-pressing roof beam (11).

8. The device according to claim 4, wherein The pre-pressing assembly (1) is provided with two pre-pressing roof beams (11), and the two pre-pressing roof beams (11) are arranged side by side.

9. The device according to claim 4, wherein The pre-pressing roof beam (11) is a cuboid structure, and two groups of anchoring assemblies (2) are arranged on the pre-pressing roof beam (11); The two groups of anchoring assemblies (2) are arranged at two ends of the pre-pressing roof beam (11).

10. The support back-pulling integral pre-pressing device according to claim 9, characterized in that, The anchoring assembly (2) comprises a connecting piece (21) and a threaded steel (22), one end of the threaded steel (22) is connected with the bridge structure, the other end is connected with the internal thread of the connecting piece (21), and the connecting piece (21) is tightly pressed on the top of the pre-pressing roof beam (11).

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