A kind of bearing platform tie rod for railway bridge construction

Abstract

The present application relates to a pedestal tie rod for railway bridge construction, including: a plug-in positioning head, the plug-in positioning head is arranged in pairs, the outer side of the plug-in positioning head is provided with an external thread, and a fastening nut is sleeved on the outer side of the external thread, the outer side of the inner cavity of the plug-in positioning head is inserted with an extrusion screw through an internal thread, and the other end of the plug-in positioning head is provided with an inserting cavity; an extrusion positioning rod, the extrusion positioning rod is arranged in pairs, and the middle part of the extrusion positioning rod is rotatably connected to the upper and lower sides of the inner part of the inserting cavity through a rotating shaft. The structure provided by the embodiment of the present application sleeves the plug-in positioning head at both ends of the steel bar, and after the plug-in positioning head is sleeved, the extrusion screw is tightened, and the tight extrusion screw will be inserted into between the two positioning blocks, so that the two clamps close and extrude the inserted steel bars, and the clamp will also be located between the two protrusions on the surface of the steel bar, thereby increasing the strength of the clamp positioning steel bar, and the steel bar adopts the existing steel bars on the construction site, which is locally sourced and easy to use.

Description

Technical Field

[0001] The present application relates to the technical field of railway bridge construction, and in particular to a cap tie rod for railway bridge construction. Background Art

[0002] The cap refers to a reinforced concrete platform connected to the top of each pile, which is set on the top of the pile foundation to bear and distribute the load transmitted by the pier body. The cap is the connecting part between the pile and the column or pier. The cap connects several or even more than a dozen piles to form a pile foundation. The cap is divided into high pile cap and low pile cap.

[0003] In the process of railway bridge construction, it is necessary to build a foundation in some special terrains. When building the foundation, concrete is poured and the formwork is constructed. Tie rods are needed to position and fix the formwork. However, ordinary tie rods require special tie rods when used, and ordinary steel bars cannot be used as tie rods. Therefore, we proposed a foundation tie rod for railway bridge construction. Utility Model Content

[0004] The present application provides a cap tie rod for railway bridge construction to solve the above-mentioned problems.

[0005] The present application provides a cap tie rod for railway bridge construction, comprising:

[0006] A plug-in positioning head, the plug-in positioning head is arranged in pairs, the outer side of the plug-in positioning head is provided with an external thread, and a fastening nut is sleeved on the outer side of the external thread, the outer side of the inner cavity of the plug-in positioning head is plugged with an extrusion screw through an internal thread, and the other end of the plug-in positioning head is provided with a plug-in cavity;

[0007] Extrusion positioning rods, the extrusion positioning rods are arranged in pairs, the middle part of the extrusion positioning rods is rotatably connected to the upper and lower sides of the plug-in cavity through a rotating shaft, and the two ends of the extrusion positioning rods are symmetrically provided with a clamping head and a positioning block;

[0008] The positioning block is arranged opposite to the end of the extrusion screw.

[0009] Preferably, a pressure plate is movably sleeved on the outer side of the plug-in positioning head, and rectangular grooves are symmetrically opened on the upper and lower sides of the extrusion surface of the pressure plate, and a pressure rod is movably inserted inside the rectangular groove.

[0010] Preferably, the end of the steel bar can be movably inserted into the insertion cavity of the insertion positioning head.

[0011] Preferably, the inner side wall of the plug-in cavity of the plug-in positioning head is also symmetrically fixedly connected to a limiting strip.

[0012] Preferably, a spring is fixedly connected between the outer side surface of the extrusion positioning rod and the inner side wall of the plug-in cavity of the plug-in positioning head.

[0013] Preferably, the side surface of the steel bar without the protrusion is in contact with the limiting strip.

[0014] Preferably, the opposite surfaces of the positioning block are all inclined surfaces.

[0015] Preferably, the diameter of the pressure rod is greater than the depth of the rectangular groove.

[0016] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0017] The structure provided by the embodiment of the present application sleeves the two ends of the steel bar with the plug-in positioning heads. After the plug-in positioning heads are sleeved, any external tool is used to tighten the extrusion screw, and the tight extrusion screw will be inserted into between the two positioning blocks, so that the two clamps are closed to squeeze the inserted steel bars, and the clamps will also be located between the two protrusions on the surface of the steel bar, thereby increasing the strength of the clamps to position the steel bars;

[0018] When the formwork is disassembled, the extrusion screw is loosened and tightened by an external tool to open the clamp head, so that the plug-in positioning head and the pressure plate can be removed and it can be used next time. The steel bars are made of existing steel bars on the construction site, which are locally sourced and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 The overall structure diagram provided for the embodiment of the present application;

[0022] Figure 2 An overall cross-sectional structural diagram provided for an embodiment of the present application;

[0023] Figure 3 Provided in the embodiments of this application Figure 2 Enlarged view of point A in the middle.

[0024] In the figure: 1. steel bar; 2. plug-in positioning head; 3. limit strip; 4. pressure plate; 5. rectangular groove; 6. fastening nut; 7. pressure rod; 8. external thread; 9. extrusion screw; 10. extrusion positioning rod; 11. rotating shaft; 12. clamping head; 13. positioning block; 14. spring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described 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, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] Various embodiments of the present application may exist in the form of a range. It should be understood that the description in the form of a range is only for convenience and simplicity and should not be understood as a hard limit to the scope of the present application; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single values ​​within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which are applicable regardless of the range. In addition, whenever a numerical range is indicated in the present application, it is meant to include any quoted numbers (fractions or integers) within the indicated range. Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present application, etc., can be purchased from the market or can be prepared by existing equipment.

[0027] In the present application, in the absence of any contrary description, the directional words used, such as "upper" and "lower", are specifically the directions of the drawings in the accompanying drawings. In addition, in the present application, the terms "include", "comprise", etc. refer to "including but not limited to". In the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. Wherein A, B can be singular or plural. In the present application, "at least one" refers to one or more, and "plural" refers to two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of singular items or plural items. For example, "at least one of a, b, or c" or "at least one of a, b and c" can both mean: a, b, c, ab, i.e. a and b, ac, bc or abc, where a, b, c can be single or plural, respectively.

[0028] Figure 1The overall structure diagram provided for the embodiment of the present application;

[0029] Figure 2 An overall cross-sectional structural diagram provided for an embodiment of the present application;

[0030] Figure 3 Provided in the embodiments of this application Figure 2 Enlarged view of point A in the middle.

[0031] like Figure 1-3 As shown, the embodiment of the present application provides a cap tie rod for railway bridge construction, comprising:

[0032] A plug-in positioning head 2, the plug-in positioning head 2 is arranged in pairs, the outer side of the plug-in positioning head 2 is provided with an external thread 8, and a fastening nut 6 is sleeved on the outer side of the external thread 8, the outer side of the inner cavity of the plug-in positioning head 2 is plugged with an extrusion screw 9 through an internal thread, and the other end of the plug-in positioning head 2 is provided with a plug-in cavity;

[0033] Extrusion positioning rods 10, the extrusion positioning rods 10 are arranged in pairs, the middle part of the extrusion positioning rods 10 is rotatably connected to the upper and lower sides of the inner part of the plug-in cavity through a rotating shaft 11, and the two ends of the extrusion positioning rods 10 are symmetrically provided with a clamping head 12 and a positioning block 13;

[0034] The positioning block 13 is arranged opposite to the end of the extrusion screw 9 .

[0035] like Figure 1 As shown: a pressure plate 4 is movably sleeved on the outer side of the plug-in positioning head 2, and rectangular grooves 5 are symmetrically opened on the upper and lower sides of the extrusion surface of the pressure plate 4, and a pressure rod 7 is movably inserted inside the rectangular groove 5.

[0036] Specifically, the pressing plate 4 is used to press the pressing rod 7 .

[0037] like Figure 1 As shown: the end of the steel bar 1 is movably inserted into the insertion cavity of the insertion positioning head 2.

[0038] Specifically, the insertion and positioning head 2 can be fixedly sleeved on the end of the steel bar 1 .

[0039] like Figure 1 As shown: the inner side wall of the insertion cavity of the insertion positioning head 2 is also symmetrically fixedly connected to the limiting strip 3, and the side surface of the steel bar 1 without the protrusion is in contact with the limiting strip 3.

[0040] Specifically, the limiting strip 3 can limit the position of the steel bar 1 so that the clamping head 12 is still located between the two protrusions on the surface of the steel bar.

[0041] like Figure 3 As shown, a spring 14 is fixedly connected between the outer side surface of the extrusion positioning rod 10 and the inner side wall of the plug-in cavity of the plug-in positioning head 2.

[0042] Specifically, the spring 14 is always in a squeezed state, and when the positioning block 13 is not subjected to force, the clamping head 12 opens, thereby facilitating the insertion of the steel bar 1 .

[0043] like Figure 3 As shown: the opposite surfaces of the positioning block 13 are all inclined surfaces.

[0044] Specifically, the inclined surface enables the extrusion screw 9 to be inserted between the two positioning blocks 13 and causes the positioning blocks 13 to be displaced.

[0045] like Figure 1 As shown: the diameter of the pressure rod 7 is greater than the depth of the rectangular groove 5.

[0046] Specifically, the diameter of the pressing rod 7 is limited so that the outer side of the pressing rod 7 can press the positioning template.

[0047] When the device is in use, first select a steel bar 1 of appropriate size, cut the steel bar 1 to an appropriate size, the size of the steel bar 1 can penetrate the steel frame of the platform, then sleeve the two ends of the steel bar 1 with the insertion positioning head 2, after the insertion positioning head 2 is sleeved, tighten the extrusion screw 9 through an external tool, the tight extrusion screw 9 will be inserted into between the two positioning blocks 13, so that the two clamps 12 close and squeeze the inserted steel bar 1, and the clamp 12 will also be located between the two protrusions on the surface of the steel bar, thereby increasing the strength of the clamp 12 to position the steel bar 1;

[0048] Before sleeved steel bar 1, the outer side of the inserted positioning head 2 is sleeved with the pressing plate 4 and the fastening nut 6. When positioning the template, the steel bar is inserted into the steel frame of the cap, and then the template is arranged, and then the pressing rod 7 is inserted, so that the pressing rod 7 is located on the outer side of the template, and then the fastening nuts 6 set on the pressing rod 7 are tightened, so that the fastening nut 6 squeezes the pressing plate 4, the pressing plate 4 squeezes the pressing rod 7, and the pressing rod 7 squeezes the template, so that the template is squeezed and fixed;

[0049] When the template is disassembled, the extrusion screw 9 is loosened and tightened by an external tool, so that the clamping head 12 is opened, so that the plug-in positioning head 2 and the pressing plate 4 can be removed and can be used next time.

[0050] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. It will be apparent to those skilled in the art that various modifications to these embodiments are possible, and the general principles defined in the present application can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown in the present application, but will conform to the widest scope consistent with the principles and novel features applied for by the present application.

Claims

1. A cap tie rod for railway bridge construction, characterized in that: include: A plug-in positioning head (2), the plug-in positioning head (2) is arranged in pairs, the outer side of the plug-in positioning head (2) is provided with an external thread (8), and a fastening nut (6) is sleeved on the outer side of the external thread (8), the outer side of the inner cavity of the plug-in positioning head (2) is plugged with an extrusion screw (9) through an internal thread, and the other end of the plug-in positioning head (2) is provided with a plug-in cavity; Extrusion positioning rods (10), the extrusion positioning rods (10) are arranged in pairs, the middle part of the extrusion positioning rods (10) is rotatably connected to the upper and lower sides of the plug-in cavity through a rotating shaft (11), and the two ends of the extrusion positioning rods (10) are symmetrically provided with a clamping head (12) and a positioning block (13); The positioning block (13) is arranged opposite to the end of the extrusion screw (9).

2. The platform tie rod for railway bridge construction according to claim 1, characterized in that: The outer side of the plug-in positioning head (2) is movably sleeved with a pressure plate (4), and rectangular grooves (5) are symmetrically opened on the upper and lower sides of the extrusion surface of the pressure plate (4), and a pressure rod (7) is movably inserted inside the rectangular groove (5).

3. The platform tie rod for railway bridge construction according to claim 1, characterized in that: The end of the steel bar (1) is movably inserted into the insertion cavity of the insertion positioning head (2).

4. The cap tie rod for railway bridge construction according to claim 1, characterized in that: The inner side wall of the plug-in cavity of the plug-in positioning head (2) is also symmetrically fixedly connected to a limiting strip (3).

5. The platform tie rod for railway bridge construction according to claim 1, characterized in that: A spring (14) is fixedly connected between the outer side surface of the extrusion positioning rod (10) and the inner side wall of the plug-in cavity of the plug-in positioning head (2).

6. The cap tie rod for railway bridge construction according to claim 3, characterized in that: The side surface of the steel bar (1) without the protrusion is in contact with the limiting strip (3).

7. The cap tie rod for railway bridge construction according to claim 1, characterized in that: The opposite surfaces of the positioning block (13) are all inclined surfaces.

8. The cap tie rod for railway bridge construction according to claim 2, characterized in that: The diameter of the pressure rod (7) is greater than the depth of the rectangular groove (5).

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