Quick centering and positioning device for precast beam and support

Abstract

The utility model belongs to the field of positioning of precast beams and supports, and particularly relates to a quick centering and positioning device for precast beams and supports, which comprises a support, a permanent support fixedly connected to the top of the support, a temporary support fixedly connected to the top of the support, a positioning device arranged on the permanent support, and a placing seat arranged on the permanent support. A placing seat is arranged at the top of the permanent support, and the inner wall of the placing seat is rotationally connected with a bidirectional threaded rod. According to the quick centering and positioning device for the precast beam and the support, the permanent support is clamped through the two groups of clamping blocks, so that the position of the placing seat is fixed, and the laser transmitter arranged on the datum plate can transmit laser, so that a worker can quickly judge the offset distance between the precast beam and the support; therefore, the hoisting equipment is guided to carry out efficient calibration work, the calibration accuracy is improved, the working efficiency is also remarkably improved, and great convenience is brought to the whole construction process.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated beam and support positioning, in particular to a prefabricated beam and support rapid centering positioning device. Background Art

[0002] A bridge is a structure that crosses water, mountain streams or unfavorable geology to facilitate the passage of vehicles and pedestrians. It consists of a superstructure (bridge span structure), a substructure (bridge abutments, piers and foundations), supports and auxiliary structures. The superstructure is the main body that crosses obstacles, the substructure provides stable support, the supports transfer loads, and the auxiliary structures enhance stability and protection.

[0003] At present, in the current prefabricated beam installation process, the method of hoisting prefabricated beams is generally adopted. However, when performing the prefabricated beam dropping process, the alignment of the prefabricated beam and the support is observed by naked eyes, and the bridge erection machine is directed to adjust the position accordingly, which affects the progress and accuracy of the entire installation process. In view of this, we propose a device for quickly aligning and positioning prefabricated beams and supports. Utility Model Content

[0004] The main purpose of the utility model is to provide a device for quickly centering and positioning a prefabricated beam and a support, which can solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes a prefabricated beam and support rapid centering positioning device, comprising a support, the top of which is fixedly connected to a permanent support, the top of which is fixedly connected to a temporary support, and a positioning device is provided on the permanent support, the positioning device comprising:

[0006] A placement seat, the top of the permanent support is provided with a placement seat, and the inner wall of the placement seat is rotatably connected with a bidirectional threaded rod;

[0007] A guide rod, the inner wall of the placement seat is rotatably connected to the guide rod, and the outer wall of the guide rod is slidably connected to a clamping block;

[0008] A rotating seat, the inner wall of the placement seat is rotatably connected to the rotating seat, and the top of the rotating seat is fixedly connected to a support plate.

[0009] Preferably, the inner wall of the placement seat is slidably connected with a clamping block, the inner wall of the clamping block is threadedly connected to the outer wall of the bidirectional threaded rod, two groups of clamping blocks are provided, and a through groove is provided at the bottom of the placement seat, the inner wall of the through groove is slidably connected with the clamping block, and the bidirectional threaded rod is rotated to drive the clamping block to slide on the inner wall of the through groove, and the clamping block is further guided by the guide rod.

[0010] Preferably, the inner wall of the support plate is slidably connected to a guide rod, the outer wall of the guide rod is fixedly connected to a reference plate, the inner wall of the reference plate is fixedly connected to a laser emitter, a through hole is opened on the support plate, and two groups of through holes are provided, and the inner wall of one group of through holes is slidably connected to a guide rod, and the moving direction of the support plate is guided by the guide rod, and the direction of the laser emitted by the laser emitter is perpendicular to the top end face of the reference plate.

[0011] Preferably, the outer wall of the guide rod is fixedly connected to a connector 1, the outer wall of the connector 1 is threadedly connected to a limiting ring 1, the inner wall of the support plate is slidably connected to a reset rod, the outer wall of the connector 1 is provided with a thread, and the limiting ring is used to limit the distance moved by a pair of reference plates to prevent the guide rod from slipping out of the support plate, and another group of through holes in the support plate is slidably connected to a reset rod.

[0012] Preferably, the outer wall of the reset rod is fixedly connected with a connector 2, the outer wall of the connector 2 is threadedly connected with a limiting ring 2, the outer wall of the support plate is welded with a reset spring, the end of the reset spring away from the support plate is welded to the outer wall of the limiting ring 2, the outer wall of the connector 2 is provided with a thread, and the moving distance of the reset rod is limited by the limiting ring 2. To prevent the reset rod from sliding out of the support plate, when the reference plate loses the thrust of the precast beam, the reset rod is automatically reset by the reset spring, thereby driving the reference plate to complete the automatic reset work.

[0013] Preferably, a protrusion is fixedly connected to the top of the rotating seat, and a clamping block is clamped on the outer wall of the protrusion. A positioning groove is provided on the placement seat, and a clamping groove is provided on the clamping block. The protrusion can be clamped into the inner wall of the clamping groove. The clamping groove of the clamping block is first clamped with the protrusion, and then the rotating seat is rotated to insert the other end of the clamping block into the positioning groove to complete the angle limiting work of the rotating seat. At this time, the angle between the rotating seat and the placement seat is ninety degrees.

[0014] The utility model provides a device for quickly aligning and positioning a prefabricated beam and a support. It has the following beneficial effects:

[0015] (1) The precast beam and support rapid centering positioning device places the placement seat on the top of the permanent support, and uses a bidirectional threaded rod to drive the two sets of clamping blocks to move toward each other, so that the two sets of clamping blocks clamp the permanent support, thereby fixing the position of the placement seat. The laser transmitter equipped on the reference plate can emit laser, so that the staff can quickly determine the offset distance between the precast beam and the support, thereby guiding the lifting equipment to perform efficient calibration work. This not only improves the accuracy of calibration, but also significantly improves work efficiency, bringing great convenience to the entire construction process.

[0016] (2) The precast beam and support quick centering positioning device can separate the block from the placement seat by pulling out the clamping block, which is convenient for rotating the seat 180 degrees. The clamping block and the protrusion are then tightly engaged again, and the clamping block is inserted into the positioning groove on the placement seat. The turning work of the device is completed, and the precast beam at the other end of the support can be aligned, thereby improving the positioning efficiency of the precast beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the permanent support and the placement seat of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the guide rod and the rotating seat of the utility model;

[0021] Figure 4 It is a schematic cross-sectional structure diagram of a part of the reference plate and the limit block of the utility model.

[0022] Explanation of the accompanying drawings: 1. Support; 2. Permanent support; 3. Temporary support; 4. Positioning device; 41. Placement seat; 42. Bidirectional threaded rod; 43. Guide rod; 44. Clamping block; 45. Rotating seat; 46. Support plate; 47. Guide rod; 48. Reference plate; 49. Laser transmitter; 5. Connector 1; 6. Limiting ring 1; 7. Reset rod; 8. Connector 2; 9. Limiting ring 2; 10. Reset spring; 11. Bump; 12. Block.

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 The utility model proposes a device for quickly aligning and positioning a prefabricated beam and a support, a support 1, a permanent support 2 is fixedly connected to the top of the support 1, the permanent support 2 is arranged at the axis of the support 1, a temporary support 3 is fixedly connected to the top of the support 1, the temporary support 3 is distributed on both sides of the permanent support 2, and supports two groups of prefabricated beams respectively, and a positioning device 4 is arranged on the permanent support 2, the positioning device 4 includes a placing seat 41, a placing seat 41 is arranged on the top of the permanent support 2, a bidirectional threaded rod 42 is rotatably connected to the inner wall of the placing seat 41, a guide rod 43 is rotatably connected to the inner wall of the placing seat 41, a clamping block 44 is slidably connected to the outer wall of the guide rod 43, the inner wall of the placing seat 41 is rotatably connected to a rotating seat 45, and a support plate 46 is fixedly connected to the top of the rotating seat 45.

[0026] In the present invention, the inner wall of the placement seat 41 is slidably connected with a clamping block 44, and the inner wall of the clamping block 44 is threadedly connected to the outer wall of the bidirectional threaded rod 42. The clamping block 44 is provided with two groups, and a through groove is provided at the bottom of the placement seat 41. The inner wall of the through groove is slidably connected with the clamping block 44. By rotating the bidirectional threaded rod 42, the clamping block 44 is driven to slide on the inner wall of the through groove, and the clamping block 44 is further guided by the guide rod 43. The inner wall of the support plate 46 is slidably connected with a guide rod 47, and the outer wall of the guide rod 47 is fixedly connected with a reference plate 48, and the inner wall of the reference plate 48 is fixedly connected with a laser emitter 49. The support plate 46 is provided with Through holes, there are two groups of through holes, the inner wall of one group of through holes is slidably connected with a guide rod 47, and the moving direction of the support plate 46 is guided by the guide rod 47. The direction of the laser emitted by the laser emitter 49 is perpendicular to the top end surface of the reference plate 48. The outer wall of the guide rod 47 is fixedly connected with a connector 5, and the outer wall of the connector 5 is threadedly connected with a limit ring 6. The inner wall of the support plate 46 is slidably connected with a reset rod 7, and the outer wall of the connector 5 is provided with a thread, and the moving distance of the reference plate 48 is limited by the limit ring 6 to prevent the guide rod 47 from sliding out of the support plate 46. The other group of through holes of the support plate 46 is slidably connected with the reset rod 7.

[0027] Furthermore, the outer wall of the reset rod 7 is fixedly connected to a connector 28, the outer wall of the connector 28 is threadedly connected to a limit ring 29, the outer wall of the support plate 46 is welded with a reset spring 10, the end of the reset spring 10 away from the support plate 46 is welded to the outer wall of the limit ring 29, the outer wall of the connector 28 is provided with a thread, and the moving distance of the reset rod 7 is limited by the limit ring 29. To prevent the reset rod 7 from sliding out of the support plate 46, when the reference plate 48 loses the thrust of the precast beam, the reset rod 7 is automatically reset by the reset spring 10, thereby driving the reference plate 48 to complete the automatic reset work. The top of the rotating seat 45 is fixedly connected with a protrusion 11, and the outer wall of the protrusion 11 is clamped with a clamping block 12. The placement seat 41 is provided with a positioning groove, and the clamping block 12 is provided with a clamping groove. The protrusion 11 can be clamped into the inner wall of the clamping groove. First, the clamping groove of the clamping block 12 is clamped with the protrusion 11, and then the rotating seat 45 is rotated to make the other end of the clamping block 12 inserted into the positioning groove to complete the angle limiting work of the rotating seat 45. At this time, the angle between the rotating seat 45 and the placement seat 41 is ninety degrees.

[0028] When in use, the placement seat 41 is placed on the top of the permanent support 2, and the two-way threaded rod 42 is rotated to make the two groups of clamping blocks 44 move toward each other. The two groups of clamping blocks 44 clamp the permanent support 2, so that the position of the placement seat 41 is fixed. The laser emitted by the laser transmitter 49 on the reference plate 48 facilitates the staff to observe the offset distance between the prefabricated beam and the support 1, which is convenient for directing the lifting equipment to perform rapid calibration and improve work efficiency.

[0029] By pulling out the clamping block 12, the clamping block 12 is separated from the placement seat 41, which facilitates the rotation of the rotation seat 45 by 180 degrees, and then the clamping block 12 is tightly engaged with the protrusion 11 again, and the clamping block 12 is inserted into the positioning groove on the placement seat 41 to complete the steering work of the device. The precast beam at the other end of the support 1 can be aligned to improve the positioning efficiency of the precast beam.

[0030] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A device for quickly aligning and positioning a prefabricated beam and a support, comprising a support (1), characterized in that: The top of the support (1) is fixedly connected to a permanent support (2), the top of the support (1) is fixedly connected to a temporary support (3), and a positioning device (4) is provided on the permanent support (2), and the positioning device (4) comprises: A placement seat (41), the top of the permanent support (2) is provided with a placement seat (41), and the inner wall of the placement seat (41) is rotatably connected with a bidirectional threaded rod (42); A guide rod (43), the inner wall of the placement seat (41) is rotatably connected to the guide rod (43), and the outer wall of the guide rod (43) is slidably connected to a clamping block (44); A rotating seat (45) is rotatably connected to the inner wall of the placement seat (41), and a support plate (46) is fixedly connected to the top of the rotating seat (45).

2. The device for quickly centering and positioning a prefabricated beam and a support according to claim 1, characterized in that: The inner wall of the placement seat (41) is slidably connected with a clamping block (44), and the inner wall of the clamping block (44) is threadedly connected to the outer wall of the bidirectional threaded rod (42).

3. The device for quickly centering and positioning a prefabricated beam and a support according to claim 1, characterized in that: The inner wall of the support plate (46) is slidably connected to a guide rod (47), the outer wall of the guide rod (47) is fixedly connected to a reference plate (48), and the inner wall of the reference plate (48) is fixedly connected to a laser emitter (49).

4. The device for quickly centering and positioning a prefabricated beam and a support according to claim 3 is characterized in that: The outer wall of the guide rod (47) is fixedly connected to a connector 1 (5), the outer wall of the connector 1 (5) is threadedly connected to a limit ring 1 (6), and the inner wall of the support plate (46) is slidably connected to a reset rod (7).

5. The device for quickly centering and positioning a prefabricated beam and a support according to claim 4, characterized in that: The outer wall of the reset rod (7) is fixedly connected with a second connector (8), the outer wall of the second connector (8) is threadedly connected with a second limit ring (9), the outer wall of the support plate (46) is welded with a reset spring (10), and one end of the reset spring (10) away from the support plate (46) is welded to the outer wall of the second limit ring (9).

6. The device for quickly centering and positioning a prefabricated beam and a support according to claim 1, characterized in that: A protrusion (11) is fixedly connected to the top of the rotating seat (45), and a clamping block (12) is clamped on the outer wall of the protrusion (11).

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