Steel bridge hollow beam inner mold

Abstract

The utility model relates to the technical field of bridge construction, and discloses a steel bridge hollow beam inner mold which comprises a front inner mold and a rear inner mold, the upper sides and the lower sides of the inner walls of the front inner mold and the rear inner mold are fixedly connected with reinforcing strips, the middle of the front wall of the front inner mold and the middle of the rear wall of the rear inner mold are fixedly connected with a plurality of supporting frames, and the supporting frames are fixedly connected with the reinforcing strips. Fixing mechanisms are jointly and fixedly connected between the rear ends of the multiple supporting frames on the front side and between the front ends of the multiple supporting frames on the rear side, and fixing frames are fixedly connected to the upper wall and the lower wall of the front inner mold and the upper wall and the lower wall of the rear inner mold; fixing frames are connected between the two fixing frames on the upper side in a sliding mode and between the two fixing frames on the lower side in a sliding mode. According to the steel bridge hollow beam internal mold, the supporting frame is arranged, so that the internal mold can be supported and fixed firmly, the overall structural strength of the internal mold is improved, the fixing mechanism and the push-pull mechanism are arranged, the internal mold is conveniently and rapidly disassembled, and the disassembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and particularly relates to a steel bridge hollow beam internal mold. Background Technique

[0002] In bridge construction, precast hollow slab beams are usually adopted. At present, the steel internal formwork used in bridge construction can replace the wooden formwork, significantly reducing the pore water pressure and the exclusion of air bubbles in the concrete pressure of traditional formwork such as wood, plywood, or steel plates. By using this steel internal mold, the hollow beam of the bridge can be formed by concrete pouring;

[0003] In the Chinese patent with the publication number CN216515166U, an easily detachable steel internal mold for bridge hollow beams is mentioned. When the clamping block moves to the right until it is disengaged from the support rod, the support rod is lifted upward by the pull rod until the first fixed sleeve and the second fixed sleeve are disengaged from the socketing relationship, and the rapid disassembly of the internal mold can be completed. The operation is simple and fast, improving the efficiency of maintenance and replacement; however, this hollow beam internal mold is not firm enough during use, and the structural strength of the hollow beam internal mold itself is not good, resulting in easy deformation of the hollow beam internal mold during the pouring process, thus affecting the quality of the bridge hollow beam and reducing the practicability. Therefore, we introduce a steel bridge hollow beam internal mold. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a steel bridge hollow beam internal mold, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A steel bridge hollow beam internal mold includes a front internal mold and a rear internal mold. Reinforcing strips are fixedly connected to the upper and lower sides of the inner walls of the front internal mold and the rear internal mold. A plurality of support frames are fixedly connected to the middle of the front wall of the front internal mold and the middle of the rear wall of the rear internal mold. A fixing mechanism is fixedly connected between the rear ends of the plurality of support frames on the front side and between the front ends of the plurality of support frames on the rear side. Fixing frames are fixedly connected between the upper and lower walls of the front internal mold and the upper and lower walls of the rear internal mold. A fixing frame is slidably connected between the two upper fixing frames and between the two lower fixing frames. Sealing strips are fixedly connected to the lower part of the rear end of the front internal mold and the upper part of the front end of the rear internal mold. Sealing grooves are formed in the upper part of the rear end of the front internal mold and the lower part of the front end of the rear internal mold.

[0007] Preferably, the fixing mechanism includes a fixing box. Both the upper box wall and the box wall of the fixing box are provided with two moving grooves. A regulating screw rod is inserted and movably connected between the left box wall and the right box wall of the fixing box through bearings. The middle part of the outer surface of the regulating screw rod is inserted and movably connected with a fixing plate through a bearing, and the outer surface of the fixing plate is fixedly connected with the box wall of the fixing box. The left part and the right part of the outer surface of the regulating screw rod are both threadedly connected with a pushing and pulling mechanism. The middle part of the right end of the regulating screw rod is fixedly connected with a regulating handle.

[0008] Preferably, the support frame includes a support rod. Reinforcing plates are fixedly connected to the middle parts of the upper end and the lower end of the support rod respectively. A short support plate is inserted and fixedly connected to the middle part of the upper end of the support rod. A long support plate is inserted and fixedly connected to the middle part of the front end of the support rod. Reinforcing frames are fixedly connected between the upper parts and the lower parts of the opposite surfaces of the long support plate and the short support plate respectively. The rear end of the support rod is fixedly connected to the rear wall of the rear inner mold.

[0009] Preferably, both of the two reinforcing plates are arranged in an inclined structure. The upper and lower end surfaces of the short support plate and the upper and lower end surfaces of the long support plate are all arranged as inclined surfaces. Both of the two reinforcing frames are arranged in an X-shaped structure.

[0010] Preferably, all four fixing frames are arranged in an L-shaped structure. The interiors of the two fixing frames are both arranged in a T-shaped structure. The two sealing strips are respectively clamped with the corresponding two sealing grooves.

[0011] Preferably, the pushing and pulling mechanism includes moving blocks. There are two moving blocks. Threaded holes are opened in the middle parts of the opposite surfaces of the two moving blocks. The upper and lower middle parts of the two moving blocks are movably connected with push-pull rods through connecting seats. Connecting seats are used to movably connect the upper parts between the outer surfaces of the two upper push-pull rods and the lower parts between the outer surfaces of the two lower push-pull rods respectively to a push-pull plate. The opposite surfaces of the two push-pull plates are fixedly connected to the upper wall and the lower wall of the rear inner mold respectively.

[0012] Preferably, the push-pull rod is slidably connected to the moving groove through a connecting seat. Left-handed threads and right-handed threads are opened on the left part and the right part of the outer surface of the regulating screw rod respectively.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, by arranging the support frame, through the support of the short support plate and the long support plate, the inner mold can be vertically supported, and then through the reinforcement of the reinforcing plate and the reinforcing frame, the inner mold can be firmly supported and fixed, which can improve the overall structural strength of the inner mold, thereby avoiding the deformation of the inner mold of the hollow beam during the pouring process and improving the quality of the hollow beam of the bridge after pouring;

[0015] 2. In the present utility model, by providing a fixing mechanism and a pushing and pulling mechanism, the supporting effect on the inner mold can be further strengthened through the support of the push-pull rod. Then, by rotating the adjusting screw rod to drive the moving block to move outward, the push-pull rod pulls the inner mold through the push-pull plate, separating the inner mold from the cast hollow beam, thus enabling the rapid disassembly of the inner mold and improving the disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an inner mold for a steel bridge hollow beam of the present utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the support frame of an inner mold for a steel bridge hollow beam of the present utility model;

[0018] Figure 3 It is a schematic diagram of the overall structure of the fixing mechanism of an inner mold for a steel bridge hollow beam of the present utility model;

[0019] Figure 4 It is a schematic diagram of the overall structure of the pushing and pulling mechanism of an inner mold for a steel bridge hollow beam of the present utility model.

[0020] In the figure: 1, front inner mold; 2, rear inner mold; 3, reinforcing strip; 4, support frame; 5, fixing mechanism; 6, fixing frame; 7, fixing frame; 8, sealing strip; 9, sealing groove; 41, support rod; 42, reinforcing plate; 43, short support plate; 44, long support plate; 45, reinforcing frame; 51, fixing box; 52, moving groove; 53, adjusting screw rod; 54, fixing plate; 55, pushing and pulling mechanism; 56, adjusting handle; 551, moving block; 552, threaded hole; 553, push-pull rod; 554, push-pull plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0025] A steel bridge hollow beam inner mold includes a front inner mold 1 and a rear inner mold 2. Reinforcing strips 3 are fixedly connected to the upper and lower inner walls of the front inner mold 1 and the rear inner mold 2. A plurality of support frames 4 are fixedly connected to the middle of the front wall of the front inner mold 1 and the middle of the rear wall of the rear inner mold 2. A fixing mechanism 5 is fixedly connected between the rear ends of the plurality of front support frames 4 and between the front ends of the plurality of rear support frames 4. Fixing frames 6 are fixedly connected between the upper and lower walls of the front inner mold 1 and the upper and lower walls of the rear inner mold 2. A fixing frame 7 is slidably connected between the two upper fixing frames 6 and between the two lower fixing frames 6. Sealing strips 8 are fixedly connected to the lower part of the rear end of the front inner mold 1 and the upper part of the front end of the rear inner mold 2. Sealing grooves 9 are formed in the upper part of the rear end of the front inner mold 1 and the lower part of the front end of the rear inner mold 2.

[0026] In this embodiment, the support frame 4 includes a support rod 41. Reinforcing plates 42 are fixedly connected to the middle of the upper end and the middle of the lower end of the support rod 41. A short support plate 43 is fixedly connected through the middle of the upper end of the support rod 41. A long support plate 44 is fixedly connected through the middle of the front end of the support rod 41. Reinforcing frames 45 are fixedly connected between the upper and lower parts of the opposite surfaces of the long support plate 44 and the short support plate 43. The rear end of the support rod 41 is fixedly connected to the rear wall of the rear inner mold 2; both of the two reinforcing plates 42 are arranged in an inclined structure to form a triangular support structure to enhance the support and reinforcement effect. The upper and lower end surfaces of the short support plate 43 and the upper and lower end surfaces of the long support plate 44 are all arranged as inclined surfaces, so that the short support plate 43 and the long support plate 44 are fixedly connected to the reinforcing strip 3 firmly. Both of the two reinforcing frames 45 are arranged in an X-shaped structure, so that the reinforcing frames 45 play a role in strengthening the short support plate 43 and the long support plate 44; all four fixing frames 6 are arranged in an L-shaped structure, and the interiors of the two fixing frames 7 are both arranged in a T-shaped structure, so that the two fixing frames 6 can be firmly clamped by the fixing frame 7, and the connection between the front inner mold 1 and the rear inner mold 2 is also firm. The two sealing strips 8 are respectively clamped with the corresponding two sealing grooves 9, which can improve the sealing performance at the connection between the front inner mold 1 and the rear inner mold 2.

[0027] In this embodiment, the fixing mechanism 5 includes a fixing box 51. Both the upper box wall and the box wall of the fixing box 51 are provided with two moving grooves 52. A regulating screw rod 53 is jointly inserted and movably connected between the left box wall and the right box wall of the fixing box 51 through bearings. The middle part of the outer surface of the regulating screw rod 53 is inserted and movably connected with a fixing plate 54 through a bearing, and the outer surface of the fixing plate 54 is fixedly connected with the box wall of the fixing box 51. Both the left part and the right part of the outer surface of the regulating screw rod 53 are threadedly connected with a pushing and pulling mechanism 55. The middle part of the right end of the regulating screw rod 53 is fixedly connected with a regulating handle 56. The pushing and pulling mechanism 55 includes moving blocks 551. There are two moving blocks 551. Thread holes 552 are respectively opened in the middle of the opposite surfaces of the two moving blocks 551. Push rods 553 are movably connected to the middle parts of the upper ends and the middle parts of the lower ends of the two moving blocks 551 through connecting seats. A pushing and pulling plate 554 is jointly movably connected between the upper parts of the outer surfaces of the two upper push rods 553 and between the lower parts of the outer surfaces of the two lower push rods 553 through connecting seats. The opposite surfaces of the two pushing and pulling plates 554 are respectively fixedly connected with the upper wall and the lower wall of the rear inner mold 2. The push rods 553 are slidably connected with the moving grooves 52 through connecting seats, so that the moving grooves 52 play a limiting role on the push rods 553, which can improve the stability of the push rods 553 during the moving process. Both the left part and the right part of the outer surface of the regulating screw rod 53 are provided with left-handed threads and right-handed threads, so that the two moving blocks 551 located on the left part and the right part of the outer surface of the regulating screw rod 53 can move outward together under the drive of the regulating screw rod 53 to pull the hollow beam inner mold.

[0028] It should be noted that the present utility model is a steel bridge hollow beam inner mold. During the use process, first, through the support of the short support plate 43 and the long support plate 44, the front inner mold 1 and the rear inner mold 2 can be vertically supported. Then, through the reinforcement of the reinforcement plate 42 and the reinforcement frame 45, the firmness of the support frame 4 can be enhanced. And through a plurality of support frames 4, the front inner mold 1 and the rear inner mold 2 can be respectively supported and fixed firmly, so as to improve the overall structural strength of the front inner mold 1 and the rear inner mold 2, thereby avoiding the deformation of the entire hollow beam inner mold during the pouring process, effectively improving the quality of the bridge hollow beam after pouring, and also improving the practicability of the hollow beam inner mold. Furthermore, through the support of a plurality of push rods 553, the support effect on the front inner mold 1 and the rear inner mold 2 can be further enhanced, and the firmness of the hollow beam mold can also be further improved. When the bridge hollow beam is poured, first move the fixing frame 7 to remove it from the fixing frame 6, which can cancel the limit fixation on the front inner mold 1 and the rear inner mold 2. Then rotate the regulating handle 56 to drive the regulating screw rod 53 to rotate, so that the moving blocks 551 drive the push rods 553 to move outward, and then the push rods 553 can pull the upper wall and the lower wall of the hollow beam inner mold through the pushing and pulling plates 554, so that the outer wall of the hollow beam inner mold is separated from the poured hollow beam, and then the front inner mold 1 and the rear inner mold 2 can be taken out from the hollow beam in sequence, thereby realizing the rapid disassembly of the hollow beam inner mold and improving the disassembly efficiency.

[0029] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and what is described in the above-mentioned embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A steel bridge hollow beam internal formwork, comprising a front internal formwork (1) and a rear internal formwork (2), characterized in that: Reinforcing strips (3) are fixedly connected to both the upper and lower sides of the inner walls of the front inner mold (1) and the rear inner mold (2). A number of support frames (4) are fixedly connected to the middle of the front wall of the front inner mold (1) and the middle of the rear wall of the rear inner mold (2). A fixing mechanism (5) is fixedly connected between the rear ends of the front-side support frames (4) and between the front ends of the rear-side support frames (4). Fixing frames (6) are fixedly connected between the upper and lower walls of the front inner mold (1) and the upper and lower walls of the rear inner mold (2). A fixing frame (7) is slidably connected between the upper two fixing frames (6) and between the lower two fixing frames (6). Sealing strips (8) are fixedly connected to the lower part of the rear end of the front inner mold (1) and the upper part of the front end of the rear inner mold (2). Sealing grooves (9) are formed in the upper part of the rear end of the front inner mold (1) and the lower part of the front end of the rear inner mold (2). The fixing mechanism (5) includes a fixing box (51). Two moving grooves (52) are formed in both the upper and lower box walls of the fixing box (51). An adjusting screw rod (53) is inserted and movably connected between the left and right box walls of the fixing box (51) through bearings. The middle part of the outer surface of the adjusting screw rod (53) is inserted and movably connected with a fixing plate (54) through a bearing, and the outer surface of the fixing plate (54) is fixedly connected to the box wall of the fixing box (51). Push-pull mechanisms (55) are threadedly connected to both the left and right parts of the outer surface of the adjusting screw rod (53). The middle part of the right end of the adjusting screw rod (53) is fixedly connected with an adjusting handle (56).

2. The internal formwork for the hollow beam of a steel bridge according to claim 1, wherein: The support frame (4) includes a support rod (41). Reinforcing plates (42) are fixedly connected to both the upper and lower middle parts of the support rod (41). A short support plate (43) is inserted and fixedly connected to the upper middle part of the support rod (41). A long support plate (44) is inserted and fixedly connected to the middle part of the front end of the support rod (41). Reinforcing frames (45) are fixedly connected between the upper and lower parts of the opposite surfaces of the long support plate (44) and the short support plate (43). The rear end of the support rod (41) is fixedly connected to the rear wall of the rear inner mold (2).

3. The internal formwork for the steel bridge hollow beam according to claim 2, characterized in that: Both of the two reinforcing plates (42) are arranged in an inclined structure. The upper and lower end surfaces of the short support plate (43) and the upper and lower end surfaces of the long support plate (44) are all arranged as inclined surfaces. Both of the two reinforcing frames (45) are arranged in an X-shaped structure.

4. A steel bridge hollow beam internal mold according to claim 1, characterized in that: All four fixing frames (6) are arranged in an L-shaped structure. The interiors of the two fixing frames (7) are both arranged in a T-shaped structure. The two sealing strips (8) are respectively clamped with the corresponding two sealing grooves (9).

5. A steel bridge hollow beam internal mold according to claim 1, characterized in that: The push-pull mechanism (55) includes moving blocks (551). There are two moving blocks (551). Threaded holes (552) are formed in the middle of the opposite surfaces of the two moving blocks (551). The middle parts of the upper ends and the middle parts of the lower ends of the two moving blocks (551) are movably connected to push-pull rods (553) through connecting seats. A push-pull plate (554) is movably connected between the upper parts of the outer surfaces of the two upper push-pull rods (553) and between the lower parts of the outer surfaces of the two lower push-pull rods (553) through connecting seats. The opposite surfaces of the two push-pull plates (554) are fixedly connected to the upper wall and the lower wall of the rear inner mold (2) respectively.

6. The internal formwork for the hollow beam of a steel bridge according to claim 5, characterized in that: The push-pull rod (553) is slidably connected to the moving groove (52) through a connecting seat. Left-handed threads and right-handed threads are formed on the left part and the right part of the outer surface of the adjusting screw rod (53).

Images