CN113914196A - Locking device of bracket on triangular bracket - Google Patents
Locking device of bracket on triangular bracket Download PDFInfo
- Publication number
- CN113914196A CN113914196A CN202111303195.3A CN202111303195A CN113914196A CN 113914196 A CN113914196 A CN 113914196A CN 202111303195 A CN202111303195 A CN 202111303195A CN 113914196 A CN113914196 A CN 113914196A
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- CN
- China
- Prior art keywords
- connecting rod
- iron box
- locking
- upper bracket
- locking device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention discloses a locking device of a bracket on a triangular bracket, wherein a convex hook head is arranged on the lower side of the end part of the upper bracket, and the locking device comprises an iron box and a wedge iron block; the iron box is pre-buried in the column beam, an opening is formed in the side of the iron box, a groove structure is formed in the bottom of the iron box, when the locking device completes position locking on the upper bracket, the upper bracket is inserted into the iron box through the opening of the iron box, and the hook head is clamped in the groove in the bottom of the iron box; and the wedge iron block is clamped between the upper bracket and the top plate of the iron box. The device can ensure that the wedge iron block does not slide, the hook head is arranged in the preset groove at the root of the iron box to restrain longitudinal displacement, and the drawing force of the zero block construction load on the upper bracket is resisted.
Description
Technical Field
The invention belongs to the technical field of construction of upper structures of continuous beams and continuous rigid frame bridges, and particularly relates to a locking device for a bracket on a triangular bracket.
Background
In the suspension casting construction, when a pier top beam section (zero block) and an adjacent beam section are constructed, a bearing support structure formed by splicing and connecting pier body embedded parts and steel members is called a bracket. The traditional bracket mostly forms a supporting system by welding brackets on embedded steel plates of pier studs. Because the bridge construction is in field work, the external environment is poor during the construction, and uncertain factor is more, directly influences the construction quality of bracket, mainly has the influence in following several aspects:
(1) uncertainty of construction time and climate; (2) the corbel welding work is high-altitude work, the welding work condition is poor, most corbel inclined struts are in reverse welding and vertical welding, and the quality of welding seams is difficult to guarantee; (3) the field welding equipment is generally only a common electric welding machine and cannot adopt special protection welding; (4) the welding bracket is dismantled and needs the high altitude cutting, and danger is high, and the safety risk is very big.
In order to overcome the defects that the welding quality of a welding bracket is difficult to guarantee, the mounting and dismounting risk is large, the construction process is complicated and the like, the assembly bracket method is mostly adopted for construction of a continuous beam 0# block at present.
At present, the mode that the end part of an upper bracket is provided with a hook is often adopted in engineering to carry out anti-pulling treatment. The method cannot ensure the stability of the bracket system under the action of construction dynamic load, and the bracket is likely to loosen, so that major safety accidents are caused. Therefore, there is a need to develop an effective temporary locking device to resist the pulling force of the upper bracket end and ensure the safety and stability of the construction process.
Disclosure of Invention
The invention aims to: in order to overcome the problems of the prior art, the locking device for the bracket on the triangular bracket is provided, and the locking of the bracket can be quickly and simply completed through the structural design of the locking device.
The purpose of the invention is realized by the following technical scheme:
a locking device of an upper bracket of a triangular bracket is characterized in that a convex hook head is arranged on the lower side of the end part of the upper bracket, and the locking device comprises an iron box and a wedge iron block; the iron box is pre-buried in the column beam, an opening is formed in the side of the iron box, a groove structure is formed in the bottom of the iron box, when the locking device completes position locking on the upper bracket, the upper bracket is inserted into the iron box through the opening of the iron box, and the hook head is clamped in the groove in the bottom of the iron box; and the wedge iron block is clamped between the upper bracket and the top plate of the iron box.
According to a preferred embodiment, the top plate of the iron box is arranged obliquely, and the opening of the iron box is provided with a horn-like structure; the top surface of the wedge block has the same inclination angle with the top plate of the iron box, and the bottom surface of the wedge block is of a horizontal flat structure.
According to a preferred embodiment, a connecting and fixing structure is further arranged between the wedge block and the iron box.
According to a preferred embodiment, the connection fixing structure comprises: the locking device comprises a first connecting rod, a locking rod and a second connecting rod; one end of the first connecting rod is connected with the wedge block, and the other end of the first connecting rod is provided with a vertical through hole structure; one end of the second connecting rod is connected with the iron box, and the other end of the second connecting rod is provided with a vertical through hole structure; the locking rod simultaneously penetrates through the vertical through holes at the end parts of the first connecting rod and the second connecting rod and is fixed with the first connecting rod and the second connecting rod through nuts.
According to a preferred embodiment, a washer is provided between the nut and the first and second connecting rods.
According to a preferred embodiment, the first connecting rod is connected with the wedge block by welding.
According to a preferred embodiment, said second connecting rod is connected to a bolt welded to the upper lug of the can.
According to a preferred embodiment, the first connecting rod, the locking rod and the second connecting rod are steel structures.
The aforementioned main aspects of the invention and their respective further alternatives can be freely combined to form a plurality of aspects, all of which are aspects that can be adopted and claimed by the present invention. The skilled person in the art can understand that there are many combinations, which are all the technical solutions to be protected by the present invention, according to the prior art and the common general knowledge after understanding the scheme of the present invention, and the technical solutions are not exhaustive herein.
The invention has the beneficial effects that: compared with the prior art, the wedge iron block can be ensured not to slide, the hook head is arranged in the preset groove at the root of the iron box to restrain longitudinal displacement, and the drawing force of the construction load of the zero block on the upper bracket is resisted.
Drawings
FIG. 1 is a schematic structural view of a locking device of a bracket on a tripod according to the present invention;
the locking device comprises a wedge block 1, a first connecting rod 2, an ear plate 3, an ear plate bolt 4, a locking rod 5, a nut 6, an upper bracket 7, an iron box 8, a second connecting rod 9 and a hook head 10.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, there is shown a locking device for a corbel on a tripod rest. And a convex hook head 10 is arranged on the lower side of the end part of the upper bracket 7.
Preferably, the locking device comprises an iron box 8 and a wedge block 1. And a connecting and fixing structure is also arranged between the wedge block 1 and the iron box 8.
Preferably, 8 pre-buried in the post roof beams of iron box, 8 sides of iron box are the opening, and 8 bottoms of iron box are equipped with groove structure.
When the locking device completes position locking on the upper bracket 7, the upper bracket 7 is inserted into the iron box 8 through the opening of the iron box 8, and the hook head 10 is clamped in the bottom groove of the iron box 8; and the wedge block 1 is clamped between the top plates of the upper bracket 7 and the iron box 8. The hook head 10 is arranged in a groove at the root of the iron box 8, the wedge block 1 is stably locked through the locking rod 5, and a structural system formed by the hook head 10 and the wedge block 1 jointly ensures that the upper bracket meets the anti-pulling requirement.
Preferably, the top plate of the iron box 8 is arranged obliquely, and the opening of the iron box 8 has a horn-like structure. The top surface of the wedge block 1 has the same inclination angle with the top plate of the iron box 8, and the bottom surface of the wedge block 1 is of a horizontal flat plate-shaped structure.
Preferably, the connection fixing structure includes: a first connecting rod 2, a locking rod 5 and a second connecting rod 9.
Preferably, one end of the first connecting rod 2 is connected with the wedge block 1, and the other end of the first connecting rod is provided with a vertical through hole structure.
Preferably, one end of the second connecting rod 9 is connected with the iron box 8, and the other end is provided with a vertical through hole structure.
Preferably, the locking rod 5 simultaneously penetrates through the vertical through holes at the ends of the first connecting rod 2 and the second connecting rod 9, and is fixed with the first connecting rod 2 and the second connecting rod 9 through the nut 6.
Preferably, a gasket is arranged between the nut 6 and the first connecting rod 2 and the second connecting rod 9.
Preferably, the first connecting rod 2 is connected with the wedge block 1 by welding. The second connecting rod 9 is connected with the lug plate bolt 4 welded on the lug plate 3 on the iron box 8. The first connecting rod 2, the locking rod 5 and the second connecting rod 9 are steel structures.
Specifically, the lug plate 3 is welded to the steel plate of the iron box 8 to form a whole. The outer end of the first connecting rod is provided with a horizontal preformed hole for installing a locking rod, and the inner end of the first connecting rod is welded with the wedge block. The second connecting rod outer end is equipped with horizontal preformed hole for the installation locking lever, and the second connecting rod inner is equipped with vertical preformed hole, and otic placode bolt 4 for the installation iron box makes the head rod form wholly with the iron box. The locking rod adopts full-thread 40cr steel bar, passes the horizontal preformed hole of first connecting rod and second connecting rod outer end and realizes the fastening locking to the wedge piece. The horizontal preformed holes at the outer ends of the first connecting rod and the second connecting rod are provided with a washer and a nut, so that the wedge block can be reliably fixed after the locking rod is fastened, and the bolting mode is convenient to mount and dismount and can be repeatedly used. The hook head is embedded into the groove to prevent the upper bracket from sliding outwards.
The specific implementation steps are as follows: 1) pushing the upper bracket 7 into the embedded iron box 8 to ensure that the hook head 10 is embedded into the groove; 2) pushing in the wedge block 1, installing a second connecting rod 9, enabling the locking rod 5 to penetrate through horizontal preformed holes at the outer ends of the first connecting rod 2 and the second connecting rod 9 and be fastened by adopting a nut 6, and further completing temporary locking of the upper bracket; 3) after the construction of the zero block is completed, the bracket is convenient and quick according to the reverse order of installation.
Compared with the prior art, the device can ensure that the wedge iron block does not slide, the hook head is arranged in the preset groove at the root of the iron box to restrain longitudinal displacement and resist the drawing force of the construction load of the zero-number block on the upper bracket, and the device has the advantages of strong adaptability, clear stress relation, easiness in operation, low construction cost and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A locking device of an upper bracket of a triangular bracket is characterized in that a convex hook head (10) is arranged at the lower side of the end part of the upper bracket (7),
the locking device comprises an iron box (8) and a wedge block (1);
the iron box (8) is pre-buried in the column beam, an opening is arranged on the side of the iron box (8), a groove structure is arranged at the bottom of the iron box (8),
when the locking device completes position locking on the upper bracket (7), the upper bracket (7) is inserted into the iron box (8) through the opening of the iron box (8), and the hook head (10) is clamped in the bottom groove of the iron box (8); and the wedge iron block (1) is clamped between the top plates of the upper bracket (7) and the iron box (8).
2. A locking arrangement as claimed in claim 1, characterised in that the top plate of the can (8) is inclined such that the opening of the can (8) has a trumpet-like configuration;
the top surface of the wedge block (1) has the same inclination angle with the top plate of the iron box (8), and the bottom surface of the wedge block (1) is of a horizontal flat structure.
3. Locking device according to claim 1, characterized in that a connection and fixation structure is provided between the wedge block (1) and the iron box (8).
4. The locking device of claim 3, wherein the connection securing structure comprises: the locking device comprises a first connecting rod (2), a locking rod (5) and a second connecting rod (9);
one end of the first connecting rod (2) is connected with the wedge block (1), and the other end of the first connecting rod is provided with a vertical through hole structure;
one end of the second connecting rod (9) is connected with the iron box (8), and the other end of the second connecting rod is provided with a vertical through hole structure;
the locking rod (5) penetrates through vertical through holes at the end parts of the first connecting rod (2) and the second connecting rod (9) at the same time and is fixed with the first connecting rod (2) and the second connecting rod (9) through nuts.
5. A locking arrangement as claimed in claim 4, characterised in that a washer is provided between the nut and the first (2) and second (9) connecting rods.
6. A locking arrangement as claimed in claim 4, characterised in that the first connecting rod (2) is connected to the wedge block (1) by means of welding.
7. A locking arrangement as claimed in claim 4, characterised in that the second connecting rod (9) is connected to an ear bolt (4) welded to an ear plate (3) on the can (8).
8. A locking arrangement as claimed in claim 4, characterised in that the first connecting rod (2), the locking rod (5) and the second connecting rod (9) are steel structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111303195.3A CN113914196A (en) | 2021-11-05 | 2021-11-05 | Locking device of bracket on triangular bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111303195.3A CN113914196A (en) | 2021-11-05 | 2021-11-05 | Locking device of bracket on triangular bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113914196A true CN113914196A (en) | 2022-01-11 |
Family
ID=79245247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111303195.3A Pending CN113914196A (en) | 2021-11-05 | 2021-11-05 | Locking device of bracket on triangular bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113914196A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960447A (en) * | 2022-06-15 | 2022-08-30 | 中铁上海工程局集团第五工程有限公司 | Cast-in-place roof beam support convenient to install fast |
-
2021
- 2021-11-05 CN CN202111303195.3A patent/CN113914196A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960447A (en) * | 2022-06-15 | 2022-08-30 | 中铁上海工程局集团第五工程有限公司 | Cast-in-place roof beam support convenient to install fast |
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