Pretreatment type road and bridge engineering design flatness surveying device

Abstract

The utility model discloses a pretreatment type road and bridge engineering design flatness surveying device which comprises a machine frame, supporting seats, suspension brackets, a transmission shaft and a fastening screw rod are arranged on the machine frame, the supporting seats are symmetrically welded to the front end and the rear end of the middle inside the machine frame, the suspension brackets are symmetrically welded to the two sides of the upper portion of the rear end of the machine frame, and the transmission shaft is connected with the transmission shaft. A sliding groove is formed in the middle of the rear end of the hanging frame, an H-shaped shaft sleeve is slidably connected to the sliding groove, a fixing screw is connected to the middle of the H-shaped shaft sleeve through threads, the transmission shaft is rotationally connected to the middle of the top of the rack, and the bottom of the transmission shaft penetrates through and extends into the rack to be fixedly provided with a transmission gear through screws. The fastening screw is connected to one side of the middle of the top of the rack through threads. The length can be adjusted according to the width of a road and a bridge, and the surveying efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to a pre-processing road and bridge engineering design flatness surveying device, belonging to the field of road and bridge surveying technology. Background Technology

[0002] Currently used road and bridge flatness surveying devices are fixed structures and cannot be adjusted in length. When roads and bridges are too wide, it is necessary to conduct surveys in sections, which seriously affects surveying efficiency. To solve the above problems, a new technical solution is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a pre-processing road and bridge engineering design flatness surveying device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a pre-treatment type road and bridge engineering design flatness surveying device, including a frame, on which a support base, a suspension frame, a drive shaft and a set screw are provided. The support base is symmetrically welded to the front and rear ends of the middle of the frame. The suspension frame is symmetrically welded to the upper two sides of the rear end of the frame. A sliding groove is opened in the middle of the rear end of the suspension frame. An H-shaped bushing is slidably connected to the sliding groove. A fixed screw is threadedly connected to the middle of the H-shaped bushing. The drive shaft is rotatably connected to the middle of the top of the frame, and the bottom of the drive shaft penetrates and extends into the inside of the frame. A transmission gear is installed and fixed by screws. The set screw is threadedly connected to one side of the middle of the top of the frame.

[0005] Preferably, a survey frame is placed on the support base, and a baffle, a rack and a laser flatness gauge are provided on the survey frame. The baffle is symmetrically installed and fixed to both ends of the inner top of the survey frame with screws. The rack is installed and fixed to the middle of the top of the survey frame with screws. The laser flatness gauge is installed and fixed at equal intervals on the lower outer side of the survey frame with screws.

[0006] Preferably, the rack is meshed with a transmission gear.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: The bottom of the drive shaft of this utility model extends through and into the frame, and a drive gear is fixed by screws, which can be easily driven to rotate by the drive shaft; the rack is meshed with the drive gear, and the rack can be easily moved relative to the drive gear; an H-shaped bushing is slidably connected to the slide groove, which can easily slide up and down along the slide groove; in summary, the length of this utility model can be adjusted according to the width of the road and bridge, which effectively improves the surveying efficiency. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model;

[0009] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0010] Figure 3 This is a schematic diagram of the survey frame structure of this utility model;

[0011] In the diagram: 1-Frame; 2-Support base; 3-Suspension frame; 4-Drive shaft; 5-Setting screw; 6-Slide groove; 7-H-type bushing; 8-Fixing screw; 9-Drive gear; 10-Surveying frame; 11-Baffle; 12-Rack; 13-Laser flatness gauge. Detailed Implementation

[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0013] like Figure 1-3 As shown, a pre-treatment type road and bridge engineering design flatness surveying device includes a frame 1. The frame 1 is equipped with a support base 2, a suspension frame 3, a drive shaft 4, and a set screw 5. The support base 2 is symmetrically welded to the front and rear ends of the frame 1. The suspension frame 3 is symmetrically welded to both sides above the rear end of the frame 1. A groove 6 is provided in the middle of the rear end of the suspension frame 3. An H-shaped bushing 7 is slidably connected to the groove 6. A set screw 8 is threadedly connected to the middle of the H-shaped bushing 7. The drive shaft 4 is rotatably connected to the top middle of the frame 1, and its bottom extends through and to the machine. The transmission gear 9 is fixed inside the frame 1 by screws. The set screw 5 is threaded to the middle side of the top of the frame 1. The survey frame 10 is placed on the support base 2. The survey frame 10 is equipped with a baffle 11, a rack 12 and a laser flatness meter 13. The baffle 11 is symmetrically fixed to the two ends of the inner top of the survey frame 10 by screws. The rack 12 is fixed to the middle of the top of the survey frame 10 by screws. The laser flatness meter 13 is fixed to the lower outer side of the survey frame 10 by screws at equal intervals. The rack 12 is meshed with the transmission gear 9.

[0014] Specific usage: The suspension bracket 3 is attached to the rear end of the survey vehicle, and the suspension bracket 3 is pressed and fixed to the rear end of the survey vehicle by the fixing screw 8. Then, according to the road width, the drive shaft 4 is turned to drive the drive gear 9 to rotate. The rotation of the drive gear 9 causes the racks 12 at the front and rear ends to move outward or inward relative to each other. The relative outward or inward movement of the racks 12 causes the survey frame 10 to move outward or inward relative to each other. The relative outward or inward movement of the survey frame 10 is used to adjust its length. After the length of the survey frame 10 is adjusted, the laser flatness meter 13 can now fully cover the road width range.

[0015] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A pre-processing road and bridge engineering design flatness surveying device, comprising a frame (1), characterized in that: The frame (1) is provided with a support base (2), a suspension frame (3), a drive shaft (4) and a set screw (5). The support base (2) is symmetrically welded to the front and rear ends of the frame (1) in the middle. The suspension frame (3) is symmetrically welded to the two sides above the rear end of the frame (1). A sliding groove (6) is opened in the middle of the rear end of the suspension frame (3). An H-shaped bushing (7) is slidably connected to the sliding groove (6). A fixed screw (8) is threadedly connected to the middle of the H-shaped bushing (7). The drive shaft (4) is rotatably connected to the middle of the top of the frame (1). The bottom of the drive shaft (4) passes through and extends into the inside of the frame (1) and a drive gear (9) is fixed by screws. The set screw (5) is threadedly connected to one side of the middle of the top of the frame (1).

2. The pre-processing road and bridge engineering design flatness surveying device according to claim 1, characterized in that: A survey frame (10) is placed on the support base (2). A baffle (11), a rack (12) and a laser flatness meter (13) are provided on the survey frame (10). The baffle (11) is symmetrically installed and fixed to the two ends of the inner top of the survey frame (10) by screws. The rack (12) is installed and fixed to the middle of the top of the survey frame (10) by screws. The laser flatness meter (13) is installed and fixed at equal intervals on the lower outer side of the survey frame (10) by screws.

3. The pre-processing road and bridge engineering design flatness surveying device according to claim 2, characterized in that: The rack (12) meshes with the transmission gear (9).

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