Concrete yard dowel bar positioning adjustable support device

Abstract

The utility model discloses a concrete yard dowel bar positioning adjustable support device which comprises a fixed support used for being installed on an upper flange of a steel formwork. The movable brackets are arranged at intervals along the fixed bracket and are in sliding fit with the fixed bracket; the upper adjusting screw rod vertically penetrates through the movable bracket and is in threaded fit with the movable bracket; the upper end of the connecting wire cylinder is in threaded connection with the upper adjusting screw, and the lower end is fixedly connected with a lower adjusting screw; and the clamp is connected with the lower adjusting screw rod and is used for clamping and positioning the dowel bar. According to the thickness of the pavement slab and the distance between the dowel bars, up-down and left-right adjustment can be carried out, and the requirement for repeated utilization is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of force transmission rod installation, in particular to a concrete runway force transmission rod positioning adjustable support device. BACKGROUND

[0002] As an important component of the transverse construction joint of the shrinkage joint of the concrete pavement, the force transmission rod plays a crucial role in the force transmission of adjacent slabs. According to the specification "Design Specification for Cement Concrete Pavement of Civil Airport" (MH / T 5004-2010), the diameter, length and spacing of the force transmission rod are different for different pavement slab thicknesses, and are usually individually confirmed according to the design drawings before construction. During construction, the steel formwork at the construction joint is first reserved with a hole in advance according to the arrangement of the force transmission rod, and a support is temporarily fixed. During the process, the accuracy required by the "Technical Specification for Construction of Cement Concrete Pavement Surface of Civil Airport Flight Zone" (MH 5006-2015) also needs to be met. Such construction operation has two problems: first, the support needs to be designed separately under different pavement thickness conditions, and the spacing adjustment of the force transmission rod does not have universality or adaptability, resulting in resource waste; second, the conventional support is installed separately, which is unstable, and the construction process disturbance easily leads to the installation accuracy of the force transmission rod not meeting the use requirements. SUMMARY

[0003] The utility model provides a concrete runway force transmission rod positioning adjustable support device, which can be adjusted up and down and left and right according to the pavement slab thickness and the spacing of the force transmission rod, and meets the repeated use requirements.

[0004] The technical problem to be solved is the poor universality and stability of the existing force transmission rod fixing support.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model discloses a concrete runway force transmission rod positioning adjustable support device, which comprises

[0007] The fixed support is used for being installed on the upper flange of the steel formwork.

[0008] The movable support is arranged at intervals along the fixed support and is in sliding cooperation with the fixed support.

[0009] The upper adjusting screw rod penetrates the movable support in the vertical direction and is in threaded cooperation with the movable support.

[0010] The connecting wire barrel is in threaded connection with the upper adjusting screw rod at the upper end, and the lower end is connected with the lower adjusting screw rod.

[0011] The clamp is fixedly connected with the lower adjusting screw rod and is used for clamping and positioning the force transmission rod.

[0012] The utility model discloses a concrete field road transfer force rod positioning adjustable support device, further, still includes connecting piece, the connecting piece is connected with the upper flange of steel formwork through bolted connection pair, the fixed support is fixedly installed on the connecting piece.

[0013] The utility model discloses a concrete field road transfer force rod positioning adjustable support device, further, the connecting piece is angle steel.

[0014] The utility model discloses a concrete field road transfer force rod positioning adjustable support device, further, the fixed support is provided with the recessed T -shaped sliding slot along its length direction in the movable support side, the movable support one end is slidably connected with T -shaped sliding slot, and the other end extends out T -shaped sliding slot and is threadedly connected with the upper adjusting screw.

[0015] The utility model discloses a concrete field road transfer force rod positioning adjustable support device, further, the movable support is T -shaped structure as a whole, and one part is slidably arranged in T -shaped sliding slot, and another part extends out T -shaped sliding slot, the part of movable support extending out T -shaped sliding slot is vertically through fixedly provided with fixed silk cylinder, and the upper adjusting screw passes through fixed silk cylinder and is threadedly connected with fixed silk cylinder.

[0016] The utility model discloses a concrete field road transfer force rod positioning adjustable support device, further, the fixture includes fixed frame, upper clamping piece, lower clamping piece and adjusting silk cylinder, the both ends of fixed frame are throughly provided along the length direction of transfer force rod, and are peripherally closed, the space for clamping transfer force rod is formed between upper clamping piece and lower clamping piece, the adjusting silk cylinder is fixedly arranged on the top surface of upper clamping piece, the lower adjusting screw is connected through the top surface of fixed frame and adjusting silk cylinder, and the lower adjusting screw is threadedly connected with fixed frame and adjusting silk cylinder, and the lower clamping piece is installed on fixed frame.

[0017] The utility model discloses a concrete field road transfer force rod positioning adjustable support device, further, the upper clamping piece is arc movable clamping piece.

[0018] The utility model discloses a concrete field road transfer force rod positioning adjustable support device, further, the lower clamping piece includes two fixed clamping pieces, and the two fixed clamping pieces are symmetrically arranged in fixed frame at an included angle, and the symmetric surface is same with the symmetric surface of upper clamping piece, one end of fixed clamping piece is connected with the bottom wall of fixed frame, and the other end is connected with the side wall of fixed frame.

[0019] The utility model discloses a concrete field road transfer force rod positioning adjustable support device, further, the included angle between fixed clamping pieces is 90 degrees.

[0020] The utility model discloses a concrete field road transfer force rod positioning adjustable support device, further, the upper adjusting screw and connecting silk cylinder all are equipped with the operating handle for rotating.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] 1. Through the sliding cooperation of the movable support and the fixed support, the movable support can slide on the fixed support along the length direction of the steel formwork, so that the interval of the movable support is adjusted according to the interval of the force transmission rod, thereby meeting the different force transmission rod interval requirements and realizing the repeated use of the adjustable support.

[0023] 2. Through the cooperation between the upper adjusting screw rod, the lower adjusting screw rod, the fixed silk cylinder, the connecting silk cylinder and the adjusting silk cylinder, the clamp can be adjusted up and down, thereby meeting the different force transmission rod positions due to the different thicknesses of the pavement and meeting the repeated use of the adjustable support.

[0024] 3. The upper clamping piece is arranged as an arc-shaped movable clamping piece, and the lower clamping piece is arranged as two fixed clamping pieces symmetrically arranged at an included angle, so as to ensure the fixing effect on the force transmission rod.

[0025] The utility model will be further described below with reference to the drawings. DRAWINGS

[0026] Fig. 1 It is a side view of the utility model;

[0027] Fig. 2 It is an elevation view of the utility model;

[0028] Fig. 3 It is a plan view of the utility model.

[0029] Reference signs:

[0030] 1, connecting piece;2, steel formwork;3, bolt connection pair;4, fixed support;5, T-shaped sliding groove;6, movable support;7, fixed silk cylinder;8, force transmission rod;9, upper adjusting screw rod;10, operating handle;11, connecting silk cylinder;12, lower adjusting screw rod;13, clamp;13.1, fixed frame;13.2, upper clamping piece;13.3, lower clamping piece;13.4, adjusting silk cylinder. DETAILED DESCRIPTION

[0031] As Figs. 1-3 shown, the utility model discloses a kind of concrete field force transmission rod positioning adjustable support device, including

[0032] Connecting piece 1 is arranged in the upper flange of steel formwork 2, and is connected with the upper flange of steel formwork 2 by bolt connection pair 3, in the embodiment of the present application, connecting piece 1 is angle steel, wherein steel formwork 2 is the formwork of field, and it is fixed on ground by steel drill cooperation support frame with steel formwork 2.

[0033] The fixed bracket 4 is set along the length of the steel template 2. One side of it is fixedly installed on the connector 1, and the other side has a recessed T-shaped groove 5 along its length.

[0034] The movable support 6 is spaced along the length of the fixed support 4 and slides in conjunction with it. The movable support 6 is a single unit, generally T-shaped. One end of the movable support 6 slides in conjunction with a T-shaped groove 5, and the other end extends out of the T-shaped groove 5 with a hole. A vertically positioned fixing screw 7 is installed inside the hole and welded to the movable support 6. The movable support 6 can slide along the length of the steel template 2 on the fixed support 4, thereby adjusting its spacing according to the spacing of the force transmission rods 8 to meet different force transmission rod spacing requirements and achieve the reusability of the adjustable support.

[0035] The upper adjusting screw 9 passes vertically through the fixed screw spool 7 and is threaded into the fixed screw spool 7. An operating handle 10 is installed at the upper end of the upper adjusting screw 9. The upper adjusting screw 9 can be rotated by the operating handle 10 to adjust the length of the upper adjusting screw 9.

[0036] The connecting screw spool 11 is threaded to the lower end of the upper adjusting screw 9 at its upper end, and the lower adjusting screw 12 is fixedly connected to its lower end. In addition, an operating handle 10 is installed on the side wall of the connecting screw spool 11, which makes it more convenient to rotate the connecting screw spool 11 by operating the operating handle 10.

[0037] The clamp 13, connected to the lower adjusting screw 12, is used to clamp and position the force transmission rod 8. The clamp 13 includes a fixed frame 13.1, an upper clamping member 13.2, a lower clamping member 13.3, and an adjusting screw spool 13.4. In this embodiment, the fixed frame 13.1 is a rectangular frame, which is provided through both ends along the length of the force transmission rod 8 and is surrounded on all four sides. It is used to pass through the force transmission rod 8 and install the lower clamping member 13.3. A space for clamping the force transmission rod 8 is formed between the upper clamping member 13.2 and the lower clamping member 13.3. The adjusting screw spool 13.4 is fixedly installed on the top surface of the upper clamping member 13.2. The lower end of the lower adjusting screw 12 passes through the top surface of the fixed frame 13.1 and is connected to the adjusting screw spool 13.4. The lower adjusting screw 12 is threadedly engaged with the fixed frame 13.1 and the adjusting screw spool 13.4. The lower clamping member 13.3 is installed on the fixed frame 13.1. During installation, the force transmission rod 8 is passed through the fixing frame 13.1 and clamped between the upper clamping member 13.2 and the lower clamping member 13.3. By rotating the connecting screw spool 11, the lower adjusting screw 12 is connected to the adjusting screw spool 13.4, and the upper clamping member 13.2 and the lower clamping member 13.3 clamp the force transmission rod 8. Then, the upper adjusting screw 9 is rotated to connect the upper adjusting screw 9 to the adjusting screw spool 13.4, thereby fixing the clamp 13. The entire system adopts a rigid connection to avoid disturbance during construction from affecting the positioning of the force transmission rod 8.

[0038] Further, in order to guarantee the fixing effect on the force transmission rod 8, in the embodiment of the application, the upper clamping piece 13.2 is arranged as an arc-shaped movable clamping piece, the adjusting wire barrel 13.4 is fixedly installed on the top surface of the arc-shaped movable clamping piece; the lower clamping piece 13.3 comprises two fixed clamping pieces, the two fixed clamping pieces are symmetrically arranged at an included angle in the fixed frame 13.1, the symmetric surface is the same as that of the upper clamping piece 13.2, one end of the fixed clamping piece is connected with the bottom wall of the fixed frame 13.1, the other end is connected with the side wall of the fixed frame 13.1, and the force transmission rod 8 is located in the included angle space of the two fixed clamping pieces; preferably, the fixed clamping pieces are at an included angle of 90°, and the fixing effect on the force transmission rod 8 is more optimal.

[0039] The above-described embodiments are merely preferred embodiments of the application, and are not intended to limit the scope of the application. Without departing from the design spirit of the application, various modifications and improvements to the technical solutions of the application made by those skilled in the art shall fall within the protection scope of the application as defined by the claims.

Claims

1. A concrete pavement dowel bar positioning adjustable support device, characterized by: The utility model relates to a steel formwork adjusting device, which comprises a fixed support (4) for being installed on the upper flange of a steel formwork (2), a movable support (6) arranged at intervals along the fixed support (4) and in sliding fit with the fixed support (4), an upper adjusting screw (9) vertically penetrating through the movable support (6) and in threaded fit with the movable support (6), a connecting sleeve (11) in threaded fit at the upper end with the upper adjusting screw (9) and connected at the lower end with a lower adjusting screw (12), a clamp (13) in fixed connection with the lower adjusting screw (12) and used for clamping and positioning the force transmission rod (8). The utility model further comprises a connecting piece (1) connected with the upper flange of the steel formwork (2) through a bolted connection pair (3), and the fixed support (4) is fixedly installed on the connecting piece (1). The connecting piece (1) is an angle steel. The fixed support (4) is provided with a recessed T-shaped sliding groove (5) along the length direction at the side of the movable support (6), one end of the movable support (6) is in sliding fit with the T-shaped sliding groove (5), and the other end of the movable support (6) extends out of the T-shaped sliding groove (5) and is in threaded fit with the upper adjusting screw (9). The movable support (6) is in T-shaped structure as a whole, one part of the movable support (6) is in sliding fit in the T-shaped sliding groove (5), and the other part of the movable support (6) extends out of the T-shaped sliding groove (5), the part of the movable support (6) extending out of the T-shaped sliding groove (5) is vertically penetrated through and fixedly provided with a fixed sleeve (7), and the upper adjusting screw (9) penetrates through the fixed sleeve (7) and is in threaded fit with the fixed sleeve (7). The clamp (13) comprises a fixed frame (13.1), an upper clamping piece (13.2), a lower clamping piece (13.3) and an adjusting sleeve (13.4), the fixed frame (13.1) is provided through at both ends along the length direction of the force transmission rod (8) and is provided peripherally closed, the space for clamping the force transmission rod (8) is formed between the upper clamping piece (13.2) and the lower clamping piece (13.3), the adjusting sleeve (13.4) is fixedly arranged on the top surface of the upper clamping piece (13.2), the lower adjusting screw (12) is connected with the adjusting sleeve (13.4) through the top surface of the fixed frame (13.1), and the lower adjusting screw (12) is in threaded fit with the fixed frame (13.1) and the adjusting sleeve (13.4); and the lower clamping piece (13.3) is mounted on the fixed frame (13.1).

2. A concrete pavement dowel bar positioning adjustable support device according to claim 1, characterized in that: The upper clamping piece (13.2) is an arc-shaped movable clamping piece.

3. A concrete pavement dowel bar positioning adjustable support device according to claim 2, wherein: The lower clamping piece (13.3) comprises two fixed clamping pieces, the two fixed clamping pieces are symmetrically arranged at an included angle in the fixed frame (13.1), the symmetric surfaces of the two fixed clamping pieces are the same as the symmetric surface of the upper clamping piece (13.2), one end of the fixed clamping piece is connected with the bottom wall of the fixed frame (13.1), and the other end of the fixed clamping piece is connected with the side wall of the fixed frame (13.1).

4. The adjustable positioning support device for concrete pavement dowel bars of claim 1, wherein: The fixed clamping pieces are at an included angle of 90°.

5. A concrete pavement dowel bar positioning adjustable support device according to claim 4, wherein: Operation handles (10) for rotating the upper adjusting screw (9) and the connecting sleeve (11) are mounted on the upper adjusting screw (9) and the connecting sleeve (11).

6. A concrete pavement dowel bar positioning adjustable support device according to claim 1, wherein: ​ 7. A concrete pavement dowel bar positioning adjustable support device according to claim 6, wherein: ​ 8. A concrete pavement dowel bar positioning adjustable support device according to claim 6, wherein: ​ 9. A concrete pavement dowel bar positioning adjustable support device according to claim 8, wherein: ​ 10. The adjustable positioning support device for concrete pavement dowel bars of claim 1, wherein: ​

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