Cable bent tower internal mold device with middle oval hole

Abstract

The utility model relates to the technical field of bridge construction, in particular to a cable bent tower internal mold device with a middle oval hole, which comprises a cable bent tower outer body, a cable bent tower internal mold with an oval hole is arranged inside the cable bent tower outer body, and a convenient demolding assembly is arranged between the cable bent tower internal mold with the oval hole and the cable bent tower outer body. According to the cable bent tower internal mold device with the middle oval hole, the supporting top stretches out and draws back to drive the bottom groove to support a cable bent tower internal mold with the oval hole, the cable bent tower internal mold device with the middle oval hole is formed, and therefore the cable bent tower internal mold device with the middle oval hole can be used for supporting the cable bent tower internal mold with the oval hole. A bidirectional threaded rod rotates to drive the outer wall of a moving block and the inner wall of a sliding groove to slide so as to drive a telescopic rod to adjust the position, the telescopic rod stretches out and draws back to adjust the distance between a first supporting plate and a cable bent tower inner mold with an oval hole, and the cable bent tower inner mold with the oval hole can be conveniently separated from a cable bent tower outer body through adjustment; therefore, demolding of the cable bent tower inner mold with the oval hole is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a cable tower inner mold device with a middle elliptical hole. Background Art

[0002] A cable tower is a tower-shaped structure that supports the main cables of a suspension bridge or a cable-stayed bridge. The tower columns of ordinary cable towers are generally constructed using hydraulic climbing formwork, with an inner formwork used as the forming support for the tower columns. The arc section of the inner formwork uses Visa plate, the rest of the inner formwork uses double-channel steel, the vertical back ribs use wooden I-beams, the horizontal back ribs of the outer formwork use double-channel steel, and the tension rods use precision-rolled threaded steel. Due to the action of horizontal forces, bending moments will also be generated on the piles below the base. In order to improve the bending resistance of the piles, it is usually necessary to increase the cross-sectional area or reinforcement of the pile foundation for large-span cable-stayed bridges.

[0003] A cable tower structure is proposed in the patent with the announcement number CN208346635U, which includes a foundation, a cable tower extending upward is fixed on the top of the foundation, and a prestressed tension member is reserved in the foundation. When the cable tower structure is subjected to horizontal force in use, the cable tower structure can be regarded as fixed at two points, one fixed point is the bottom end of the foundation, and the other fixed point is located on the cable tower. The part of the cable tower structure located between the two fixed points has a tendency to bend along the direction of the horizontal force. The balance cable and the cable tower can disperse the horizontal force at multiple points, reduce the total bending moment of the cable tower structure, and improve the bending resistance of the cable tower, thereby improving the stability. However, there are still the following problems in this patent:

[0004] After the tower is cast, the inner mold needs to be removed, so the construction process is more complicated and the construction period is increased, which makes it inconvenient to remove the inner mold and easily causes the outer body of the tower to adhere to the inner mold, making it difficult to separate.

[0005] In view of the above problems, it is necessary to design a tower inner mold device with a middle elliptical hole to overcome the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a cable tower inner mold device with a middle elliptical hole, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A cable tower inner mold device with a middle elliptical hole comprises a cable tower outer body, wherein the cable tower inner mold with an elliptical hole is arranged inside the cable tower outer body, and a demoulding component is arranged between the cable tower inner mold with the elliptical hole and the cable tower outer body;

[0009] The demoulding component includes a sliding groove arranged on the inner wall of the outer body of the cable tower, a motor is arranged on the outer wall of the outer body of the cable tower, a bidirectional threaded rod is arranged inside the sliding groove, one end of the bidirectional threaded rod is connected with a driven gear through a coupling, the outer wall of the driven gear is meshed with a driving gear, the driving gear transmission shaft is connected with the motor output end through a coupling, a moving block is arranged on the outer wall of the bidirectional threaded rod, one end of the moving block is connected with the bottom end of the telescopic rod through a connecting piece, and the top of the telescopic rod is connected with a first support plate through a connecting piece, one side of the first support plate is tightly attached to the outer wall of the inner mold of the cable tower with an elliptical hole, a bottom groove is arranged at the bottom end of the inner body of the cable tower, a support top is arranged at the bottom end of the inner body of the bottom groove, and a second support plate is arranged on the top of the support top.

[0010] As a preferred solution of the utility model, the bottom trough is non-detachably connected to the outer body of the cable tower, the support top is non-detachably connected to the bottom trough, and the support top is non-detachably connected to the second support plate.

[0011] As a preferred solution of the utility model, the sliding groove is fixedly connected to the outer body of the cable tower, and the bidirectional threaded rod is fixedly connected to the sliding groove via a roller.

[0012] As a preferred solution of the utility model, one end of the bidirectional threaded rod is fixedly connected to the driven gear via a coupling, and the driven gear is meshingly connected to the driving gear.

[0013] As a preferred solution of the utility model, the motor output end is fixedly connected to the driving gear via a coupling, the moving block is threadedly connected to the bidirectional threaded rod, and the moving block is slidably connected to the sliding groove.

[0014] As a preferred solution of the utility model, the moving block is hinged to the telescopic rod, the telescopic rod is hinged to the first support plate, and the cable tower inner mold with the elliptical hole is detachably connected to the cable tower outer body.

[0015] Beneficial Effects

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. In the utility model, a cable tower inner mold device with an elliptical hole in the middle is designed. The support top is extended and retracted to drive the bottom groove to support the cable tower inner mold with the elliptical hole. The outer wall of the moving block and the inner wall of the sliding groove are driven to slide by the rotation of the bidirectional threaded rod, thereby driving the telescopic rod to adjust the position. The distance between the first support plate and the cable tower inner mold with the elliptical hole is adjusted by the extension and retraction of the telescopic rod, so that the cable tower inner mold with the elliptical hole can be separated from the cable tower outer body through adjustment, thereby facilitating the demoulding of the cable tower inner mold with the elliptical hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of A of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of B of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of position C of the utility model.

[0022] In the figure: 1. Cable tower outer body; 2. Cable tower inner mold with elliptical holes; 3. Easy demoulding components; 301. Sliding groove; 302. Bidirectional threaded rod; 303. Motor; 304. Driving gear; 305. Driven gear; 306. Moving block; 307. Telescopic rod; 308. First support plate; 309. Bottom groove; 310. Support top; 311. Second support plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-4 As shown, a cable tower inner mold device with a middle elliptical hole comprises a cable tower outer body 1, a cable tower inner mold 2 with an elliptical hole is arranged inside the cable tower outer body 1, and a demoulding component 3 is arranged between the cable tower inner mold 2 with the elliptical hole and the cable tower outer body 1;

[0025] The demoulding component 3 includes a sliding groove 301 arranged on the inner wall of the cable tower outer body 1, a motor 303 is arranged on the outer wall of the cable tower outer body 1, a bidirectional threaded rod 302 is arranged inside the sliding groove 301, one end of the bidirectional threaded rod 302 is connected to a driven gear 305 through a coupling, a driving gear 304 is meshed on the outer wall of the driven gear 305, and the driving gear 304 transmission shaft is connected to the output end of the motor 303 through a coupling, a moving block 306 is arranged on the outer wall of the bidirectional threaded rod 302, one end of the moving block 306 is connected to the bottom end of the telescopic rod 307 through a connecting piece, and the top of the telescopic rod 307 is connected to a first support plate 308 through a connecting piece, one side of the first support plate 308 is tightly attached to the outer wall of the cable tower inner mold 2 with an elliptical hole, a bottom groove 309 is arranged at the bottom end of the inner part of the cable tower outer body 1, a support top 310 is arranged at the bottom end of the inner part of the bottom groove 309, and a second support plate 311 is arranged on the top of the support top 310.

[0026] Please refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4As shown, the bottom groove 309 is non-detachably connected to the cable tower outer body 1, the support top 310 is non-detachably connected to the bottom groove 309, the support top 310 is non-detachably connected to the second support plate 311, the sliding groove 301 is fixedly connected to the cable tower outer body 1, the bidirectional threaded rod 302 is fixedly connected to the sliding groove 301 through a roller, one end of the bidirectional threaded rod 302 is fixedly connected to the driven gear 305 through a coupling, the driven gear 305 is meshed with the driving gear 304, the output end of the motor 303 is fixedly connected to the driving gear 304 through a coupling, the moving block 306 is threadedly connected to the bidirectional threaded rod 302, the moving block 306 is slidably connected to the sliding groove 301, the moving block 306 is hinged to the telescopic rod 307, the telescopic rod 307 is hinged to the first support plate 308, and the cable tower inner mold 2 with an elliptical hole is detachably connected to the cable tower outer body 1;

[0027] Among them, the telescopic rod 307 is hinged to the first support plate 308, and the telescopic rod 307 is hinged to the moving block 306, so that when the moving block 306 slides with the inner wall of the sliding groove 301, the telescopic rod 307 is driven to change its angle, thereby adjusting the support effect of the first support plate 308.

[0028] Working process of the utility model: using the cable tower inner mold device with a middle elliptical hole designed in the present scheme, when working, by starting the motor 303, the driving gear 304 is driven to rotate, and the driving gear 304 is meshed with the driven gear 305, and the driven gear 305 is connected with the bidirectional threaded rod 302 through a coupling, the bidirectional threaded rod 302 is driven to rotate, and then the two groups of moving blocks 306 are driven to move toward each other so that a certain distance is left between the first support plate 308 and the inner wall of the cable tower outer body 1, and supported by the telescopic rod 307, by casting the cable tower inner mold 2 with an elliptical hole, after it is shaped, the telescopic rod 307 is contracted to drive the first support plate 308 away from the cable tower inner mold 2 with the elliptical hole, and the support top 310 is extended to drive the second support plate 311 on the top to lift the cable tower inner mold 2 with the elliptical hole, so as to facilitate the cable tower inner mold 2 with the elliptical hole to separate from the cable tower outer body 1, prevent the inconvenience of disassembly, and cause the cable tower outer body 1 to be damaged, and the operation is simpler.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable tower inner mold device with a central elliptical hole, comprising a cable tower outer body (1), characterized in that: A cable tower inner mold (2) with an elliptical hole is arranged inside the cable tower outer body (1), and a demoulding component (3) is arranged between the cable tower inner mold (2) with an elliptical hole and the cable tower outer body (1); The demoulding assembly (3) comprises a sliding groove (301) arranged on the inner wall of the cable tower outer body (1); a motor (303) is arranged on the outer wall of the cable tower outer body (1); a bidirectional threaded rod (302) is arranged inside the sliding groove (301); one end of the bidirectional threaded rod (302) is connected to a driven gear (305) via a coupling; a driving gear (304) is meshed on the outer wall of the driven gear (305); a transmission shaft of the driving gear (304) is connected to the output end of the motor (303) via a coupling; and the bidirectional threaded rod (302) is connected to the output end of the motor (303) via a coupling. ) is provided with a moving block (306) on the outer wall, one end of the moving block (306) is connected to the bottom end of a telescopic rod (307) via a connecting piece, the top end of the telescopic rod (307) is connected to a first support plate (308) via a connecting piece, one side of the first support plate (308) is tightly attached to the outer wall of the cable tower inner mold (2) with an elliptical hole, a bottom groove (309) is provided at the bottom end of the interior of the cable tower outer body (1), a support top (310) is provided at the bottom end of the interior of the bottom groove (309), and a second support plate (311) is provided on the top of the support top (310).

2. The cable tower inner mold device with a central elliptical hole according to claim 1, characterized in that: The bottom groove (309) is non-detachably connected to the tower outer body (1), the support top (310) is non-detachably connected to the bottom groove (309), and the support top (310) is non-detachably connected to the second support plate (311).

3. The cable tower inner mold device with a central elliptical hole according to claim 2, characterized in that: The sliding groove (301) is fixedly connected to the tower outer body (1), and the bidirectional threaded rod (302) is fixedly connected to the sliding groove (301) via a roller.

4. The cable tower inner mold device with a central elliptical hole according to claim 3, characterized in that: One end of the bidirectional threaded rod (302) is fixedly connected to the driven gear (305) via a coupling, and the driven gear (305) is meshingly connected to the driving gear (304).

5. The cable tower inner mold device with a central elliptical hole according to claim 4, characterized in that: The output end of the motor (303) and the driving gear (304) are fixedly connected via a coupling, the moving block (306) and the bidirectional threaded rod (302) are threadedly connected, and the moving block (306) and the sliding groove (301) are slidably connected.

6. The cable tower inner mold device with a central elliptical hole according to claim 5, characterized in that: The moving block (306) is hinged to the telescopic rod (307), the telescopic rod (307) is hinged to the first support plate (308), and the cable tower inner mold (2) with the elliptical hole is detachably connected to the cable tower outer body (1).

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