Municipal road bridge simply supported beam construction device

Abstract

The utility model relates to the field of municipal road bridge construction, in particular to a municipal road bridge simply supported beam construction device. The utility model provides a municipal road bridge simply supported beam construction device. A municipal road bridge simply supported beam construction device comprises a hoisting base, a hoisting frame, a fixing disc, a lasso, a positioning mechanism and an anti-loosening mechanism. The positioning structure is arranged, the servo motor drives the bevel gear set to rotate, the positioning rod slides downwards, the distance between the positioning rod and the precast concrete beam is shortened, when the positioning rod makes contact with the precast concrete beam, the positioning rod is limited and fixed, meanwhile, the first spring is compressed, extrusion of the simply supported beam on the positioning rod is buffered, and the positioning rod is prevented from being damaged. And hard contact between the precast concrete beam and the device is avoided.

Description

Technical Field

[0001] The utility model relates to the field of municipal road bridge construction, in particular to a municipal road bridge simply supported beam construction device. Background Art

[0002] Simply supported beams are a common type of beam in structural engineering. They are usually used in bridges, buildings or other structures with relatively small spans. Precast concrete beams or steel structure beams are accurately placed on supports through lifting equipment to ensure that the position, direction and elevation of the beams meet the design requirements. Existing lifting equipment lacks limit fixation for precast concrete beams during the lifting process, which may cause the simply supported beams to slip and affect construction safety.

[0003] In view of the above problems, a municipal road bridge simply supported beam construction device is developed. Utility Model Content

[0004] In order to overcome the shortcomings of existing hoisting equipment that lacks limiting fixation of precast concrete beams during the process of hoisting precast concrete beams, which may cause the precast concrete beams to slide and affect construction safety, the utility model provides a municipal road bridge simply supported beam construction device.

[0005] The technical solution of the utility model is: a construction device for simply supported beams of municipal road bridges, comprising a lifting seat, the upper sides of the left and right parts of the lifting seat are connected to lifting frames, the front and rear sides of the lower part of the lifting seat are connected to left-right symmetrical fixed plates, a lasso is arranged between the left and right fixed plates, a positioning mechanism is arranged on the lifting seat, the positioning mechanism comprises a servo motor, the servo motor is installed on the upper side of the right part of the lifting seat, a bevel gear set is connected to the output shaft of the servo motor, the bevel gear set is rotatably connected to the lifting seat, a lifting screw rod is threadedly connected to the lifting screw rod, the lifting screw rod is slidably connected to the lifting seat, a connecting rod is connected to the connecting rod, a positioning rod is slidably connected to the lifting rod, the positioning rod is slidably connected to the lifting seat, the positioning rod is through-connected to the lifting seat, and two first springs are connected between the connecting rod and the positioning rod.

[0006] Furthermore, it also includes an anti-loosening mechanism, which includes a guide block. Two left-right symmetrical guide blocks are connected to the front and rear sides of the upper part of the lifting seat, and each two guide blocks form a group. There are 8 guide blocks in total, and each group of guide blocks is slidably connected with a clamping rod, and each group of guide blocks and adjacent clamping rods are connected with two second springs.

[0007] Furthermore, the hanging frame is a detachable connection structure.

[0008] Furthermore, the hanging frame is connected with a triangular rib frame for reinforcement.

[0009] Furthermore, there is a gap between the fixing plate and the hanging seat, which is convenient for positioning the lasso.

[0010] Furthermore, the bevel gear set includes a bevel gear and a gear, and the bevel gear is meshed with the gear.

[0011] By adopting the above technical solution, the utility model has the following advantages:

[0012] 1. The utility model is provided with a positioning structure, and the servo motor drives the bevel gear set to rotate, so that the positioning rod slides downward, shortening the distance between the positioning rod and the precast concrete beam. When the positioning rod contacts the precast concrete beam, it is limited and fixed, and the first spring is compressed at the same time, so that the extrusion of the simply supported beam on the positioning rod is buffered, avoiding hard contact between the precast concrete beam and the device.

[0013] 2. The utility model is provided with an anti-loosening mechanism, the lasso squeezes the clamping rod, so that the second spring is compressed. Under the reaction force of the second spring, the clamping rod clamps and fixes the lasso to prevent the lasso from loosening, thereby ensuring the safety of the simply supported beam construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0016] Figure 3 It is a schematic diagram of the planar structure of the positioning mechanism of the utility model.

[0017] The names and serial numbers of the parts in the figure are: 1. Lifting seat, 2. Lifting frame, 3. Fixed plate, 4. Lasso, 5. Positioning mechanism, 51. Servo motor, 52. Bevel gear set, 53. Lifting screw, 54. Connecting rod, 55. Positioning rod, 56. First spring, 6. Anti-loosening mechanism, 61. Guide block, 62. Clamping rod, 63. Second spring. DETAILED DESCRIPTION

[0018] The preferred technical solution of the present utility model is described in detail below with reference to the accompanying drawings.

[0019] Example 1

[0020] A municipal road bridge simply supported beam construction device, such as Figure 1-Figure 3As shown, it includes a lifting seat 1, and the upper sides of the left and right parts of the lifting seat 1 are connected to the lifting frame 2, the lifting frame 2 is a detachable connection structure, and the lifting frame 2 is connected to a triangular rib frame for reinforcement, and the front and rear sides of the lower part of the lifting seat 1 are connected to the left and right symmetrical fixing plates 3, and a lasso 4 is set between the left and right fixing plates 3. There is a gap between the fixing plates 3 and the lifting seat 1, which is convenient for the lasso 4 to be clamped and placed. A positioning mechanism 5 is arranged on the lifting seat 1, and the positioning mechanism 5 includes a servo motor 51. The servo motor 51 is installed on the upper side of the right part of the lifting seat 1. The servo motor 5 The output shaft is connected with a bevel gear set 52, which includes a bevel gear and a gear. The bevel gear is meshed with the gear. The bevel gear set 52 is rotatably connected to the hanging seat 1. A lifting screw rod 53 is threadedly connected to the bevel gear set 52. The lifting screw rod 53 is slidably connected to the hanging seat 1. A connecting rod 54 is connected to the lifting screw rod 53. A positioning rod 55 is slidably connected to the connecting rod 54. The positioning rod 55 is slidably connected to the hanging seat 1. The positioning rod 55 is through-connected to the hanging seat 1. Two first springs 56 are connected between the connecting rod 54 and the positioning rod 55.

[0021] A simply supported beam is a common form of beam in structural engineering, and is usually used in bridges, buildings or other structures with relatively small spans. The precast concrete beam or steel structure beam is accurately placed on the support through a lifting device to ensure that the position, direction and elevation of the beam meet the design requirements. The device is installed on the crane through the lifting frame 2, and the precast concrete beam is passed through the lasso 4 by the crane. There is a gap between the fixed plate 3 and the lifting seat 1, which is convenient for the lasso 4 to be clamped and placed. Then the servo motor 51 is turned on, and the output shaft of the servo motor 51 drives the bevel gear set 52 to rotate, and the bevel gear set 52 drives the lifting screw rod 53 to move downward, so that the positioning rod 55 slides downward, gradually shortening the distance between the positioning rod 55 and the precast concrete beam. When the positioning rod 55 contacts the precast concrete beam, the precast concrete beam squeezes the positioning rod 55 to clamp the precast concrete beam, and at the same time the first spring 56 is compressed, so that the squeezing of the positioning rod 55 by the simply supported beam is buffered, avoiding hard contact between the precast concrete beam and the device.

[0022] Example 2

[0023] On the basis of Example 1, Figure 1 and Figure 3 As shown, it also includes an anti-loosening mechanism 6, which includes a guide block 61. Two left-right symmetrical guide blocks 61 are connected to the front and rear sides of the upper part of the lifting seat 1. Every two guide blocks 61 form a group. There are 8 guide blocks 61 in total. A clamping rod 62 is slidably connected between each group of guide blocks 61. Two second springs 63 are connected between each group of guide blocks 61 and adjacent clamping rods 62.

[0024] To prevent the lasso 4 from falling off the fixed plate 3, the lasso 4 is mounted on the fixed plate 3 to squeeze the clamping rod 62, and the clamping rod 62 squeezes the second spring 63 upward. The second spring 63 is compressed, and under the reaction force of the second spring 63, the clamping rod 62 clamps the lasso 4 to prevent the lasso 4 from loosening, thereby ensuring the safety of the simply supported beam construction.

[0025] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. A municipal road bridge simply supported beam construction device, characterized in that: The invention comprises a hanging seat (1), wherein the upper sides of the left and right parts of the hanging seat (1) are both connected to hanging frames (2), the front and rear sides of the lower part of the hanging seat (1) are both connected to left-right symmetrical fixing plates (3), a lasso (4) is sleeved between the left and right fixing plates (3), a positioning mechanism (5) is arranged on the hanging seat (1), the positioning mechanism (5) comprises a servo motor (51), the servo motor (51) is installed on the upper side of the right part of the hanging seat (1), a bevel gear set (52) is connected to the output shaft of the servo motor (51), and the bevel gear set (52) is connected to the bevel gear set (52) and the bevel gear set (52) is connected to the bevel gear set (52). The hanging seat (1) is rotatably connected, the bevel gear set (52) is threadedly connected with a lifting screw rod (53), the lifting screw rod (53) is slidably connected to the hanging seat (1), the lifting screw rod (53) is connected with a connecting rod (54), the connecting rod (54) is slidably connected with a positioning rod (55), the positioning rod (55) is slidably connected to the hanging seat (1), the positioning rod (55) is through-connected to the hanging seat (1), and two first springs (56) are connected between the connecting rod (54) and the positioning rod (55).

2. A municipal road bridge simply supported beam construction device according to claim 1, characterized in that: It also includes an anti-loosening mechanism (6), which includes a guide block (61). Two left-right symmetrical guide blocks (61) are connected to the front and rear sides of the upper part of the lifting seat (1), and each two guide blocks (61) form a group. There are 8 guide blocks (61) in total. Each group of guide blocks (61) is slidably connected to clamping rods (62), and each group of guide blocks (61) is connected to two second springs (63) between the adjacent clamping rods (62).

3. A municipal road bridge simply supported beam construction device according to claim 1, characterized in that: The hanging frame (2) is a detachable connection structure.

4. A municipal road bridge simply supported beam construction device according to claim 1, characterized in that: The hanging frame (2) is connected with a triangular rib frame for reinforcement.

5. A municipal road bridge simply supported beam construction device according to claim 1, characterized in that: There is a gap between the fixing plate (3) and the hanging seat (1), which facilitates the positioning of the lasso (4).

6. A municipal road bridge simply supported beam construction device according to claim 1, characterized in that: The bevel gear set (52) comprises a bevel gear and a gear, and the bevel gear is meshed with the gear.

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