A surveying apparatus for construction engineering

Abstract

The utility model relates to the technical field of building engineering, disclose a surveying equipment for building engineering, including fixed link and movable link, the inside top of fixed link hinged type connection has first connecting rod, one end of first connecting rod hinged type connection has second connecting rod, the outside movable type connection of movable link has fixed frame, one end of second connecting rod hinged type connection is in the inside of fixed frame, the top of first connecting rod is provided with knob, the other end of second limit link is insertedly connected in the inside of fixed frame, make it vertical through the round level of adjusting fixed link, movable link can be up and down along fixed frame, through observing the change of the scale rule of movable link side, can fast calculation fixed link and movable link's two point height difference, can fast judge road surface overall height difference through many point measurement.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a measuring device for building engineering. Background Technology

[0002] In the entire process of architectural engineering, including surveying and design, construction, and final acceptance, surveying is a core link in ensuring project quality and safety. Its accuracy directly determines the stability of the building structure, the accuracy of the spatial layout, and the controllability of the construction progress. From the axial positioning of high-rise buildings and the span measurement of bridges to the marking of underground pipelines and the monitoring of foundation settlement, surveying data provides key basis for engineering decisions. If the elevation measurement error is too large, it will cause the drainage system to fail; and if the settlement monitoring data of large structures is distorted, it may even create a hidden danger of collapse.

[0003] For simple leveling rods, the measurement principle requires staff to repeatedly bend over to adjust the verticality of the rod and observe the alignment of the scale with the baseline. Prolonged bending can easily lead to lumbar strain, and the operation is cumbersome and strenuous. Portable rangefinders, on the other hand, require at least two staff members to work together: one person holds the rangefinder and aligns it with the measurement baseline, while the other person places a reflector or auxiliary ruler at the target point. The two people need to repeatedly confirm the alignment of the position through gestures or walkie-talkies, which is quite wasteful of manpower.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing surveying equipment used in construction engineering. Utility Model Content

[0005] To address the problem that existing engineering surveying methods are time-consuming and labor-intensive, this utility model provides a surveying device for building engineering.

[0006] This utility model is achieved using the following technical solution: A measuring device for construction engineering includes a fixed rod and a movable rod. A first connecting rod is hinged to the inner top of the fixed rod, and a second connecting rod is hinged to one end of the first connecting rod. A fixed frame is movably connected to the outer side of the movable rod. One end of the second connecting rod is hinged to the inner side of the fixed frame. A knob is provided at the top of the first connecting rod, and a gear is fixedly connected to the bottom of the knob via a rotating shaft. Two racks are meshed at both ends of the gear. Two movable blocks are fixedly connected to one end of each of the two racks. Two first limiting rods are fixedly connected to one side of each of the two movable blocks. One end of one first limiting rod is inserted into the interior of the fixed rod, and one end of the other first limiting rod is inserted into the interior of the second connecting rod. A second limiting rod is movably connected inside the second connecting rod, with one end of the second limiting rod contacting one end of the first limiting rod, and the other end of the second limiting rod inserted into the interior of the fixed frame.

[0007] Preferably, the first connecting rod has a movable groove inside, the movable block is movably connected inside the movable groove, one end of the movable groove has a connecting groove, and the first limiting rod is movably connected inside the connecting groove.

[0008] Preferably, a first slot is machined inside one side of the fixing rod, and one end of the first limiting rod is plugged into the inside of the first slot.

[0009] Preferably, the second connecting rod has a limiting groove machined inside, one end of the first limiting rod is plugged into the limiting groove, and the second limiting rod is movably connected to the limiting groove.

[0010] Preferably, a second slot is machined on the inner side of the fixed frame, and one end of the second limiting rod is plugged into the inside of the second slot.

[0011] Preferably, the limiting groove has a groove in the middle, the second limiting rod is fixedly connected to a pushing block in the middle, the pushing block is movably connected inside the groove, and a first return spring is fixedly connected to one side of the pushing block, with one end of the first return spring fixedly connected to the inner wall of one end of the groove.

[0012] Preferably, a pull block is provided on one side of the first connecting rod, and a positioning pin is fixedly connected to the inner side of the pull block. The positioning pin is movably connected to the inside of the first connecting rod. Two positioning holes are machined on one side of the rack, and one end of the positioning pin is inserted into the positioning hole.

[0013] Preferably, a second return spring is provided on the outside of the positioning pin, one end of the second return spring is fixedly connected to the inside of the pull block, and the other end of the second return spring is fixedly connected to the outside of the first connecting rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In use, this utility model involves first pulling apart the fixed rod and the movable rod, making the first connecting rod and the second connecting rod perpendicular to the fixed rod. Rotating any knob causes the movable block and the first limiting rod to move via gears and racks, allowing the first limiting rod to insert into the fixed rod and the second connecting rod respectively, thus limiting and fixing them. Simultaneously, the second limiting rod is pushed into the fixed frame, fixing the second connecting rod to the fixed frame. This results in the first connecting rod, the second connecting rod, and the fixed frame forming a horizontal straight line perpendicular to the fixed rod and the movable rod.

[0016] In use, this utility model allows the fixed rod to be vertically adjusted by adjusting the circular level, while the movable rod can move up and down along the fixed frame. By observing the changes in the scale on one side of the movable rod, the height difference between the two points of the fixed rod and the movable rod can be quickly calculated. Through multi-point measurement, the overall height difference of the road surface can be quickly determined.

[0017] When this utility model is in use, if it is necessary to store the equipment, turn the knob to retract the two first limiting rods into the interior of the first connecting rod. The first return spring drives the second limiting rod to retract into the interior of the second connecting rod through elastic potential energy, thereby folding the first connecting rod and the second connecting rod so that the fixed rod and the movable rod are close together and tied together, which is convenient for storage and transportation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the first connecting rod of this utility model;

[0020] Figure 3 This is a cross-sectional view of the second connecting rod of this utility model;

[0021] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of part A in the middle.

[0022] In the diagram: 1. Fixed rod; 2. Movable rod; 3. First connecting rod; 4. Second connecting rod; 5. Fixed frame; 6. Knob; 7. Gear; 8. Rack; 9. Movable block; 10. First limiting rod; 11. Second limiting rod; 12. Movable groove; 13. Connecting groove; 14. First slot; 15. Limiting groove; 16. Second slot; 17. Groove; 18. Push block; 19. First return spring; 20. Pull block; 21. Second return spring; 22. Positioning pin; 23. Positioning hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1: Please refer to Figure 1 - Figure 4This embodiment of a measuring device for construction engineering includes a fixed rod 1 and a movable rod 2. A first connecting rod 3 is hinged to the inner top of the fixed rod 1, and a second connecting rod 4 is hinged to one end of the first connecting rod 3. A fixed frame 5 is movably connected to the outer side of the movable rod 2. One end of the second connecting rod 4 is hinged to the inner side of the fixed frame 5. A knob 6 is provided at the top of the first connecting rod 3, and a gear 7 is fixedly connected to the bottom of the knob 6 via a rotating shaft. Two racks 8 are meshed at both ends of the gear 7. One end of strip 8 is fixedly connected to two movable blocks 9. One side of the two movable blocks 9 is fixedly connected to two first limiting rods 10. One end of one first limiting rod 10 is plugged into the inside of the fixed rod 1, and one end of the other first limiting rod 10 is plugged into the inside of the second connecting rod 4. The inside of the second connecting rod 4 is movably connected to a second limiting rod 11. One end of the second limiting rod 11 is in contact with one end of the first limiting rod 10, and the other end of the second limiting rod 11 is plugged into the inside of the fixed frame 5.

[0025] In use, first pull apart the fixed rod 1 and the movable rod 2 so that the first connecting rod 3 and the second connecting rod 4 are perpendicular to the fixed rod 1. Then rotate the knob 6, which will drive the gear 7 to rotate. The gear 7 will drive the two racks 8 to move, the racks 8 will drive the two movable blocks 9 to move, and the two movable blocks 9 will drive the two first limiting rods 10 to move. The two first limiting rods 10 will be inserted into the interior of the fixed rod 1 and the interior of the second connecting rod 4 respectively, so that the two ends of the first connecting rod 3 limit and fix the fixed rod 1 and the second connecting rod 4 respectively. When one of the first limiting rods 10 is inserted into the interior of the second connecting rod 4, it will push the second limiting rod 11 to move, so that one end of the second limiting rod 11 is inserted into the interior of the fixed frame 5, so that the second connecting rod 4 is limited and fixed with the fixed frame 5. Thus, the first connecting rod 3, the second connecting rod 4 and the fixed frame 5 are in the same horizontal straight line and are perpendicular to the fixed rod 1 and the movable rod 2 respectively.

[0026] Secondly, by adjusting the circular level inside the fixed rod 1, the fixed rod 1 is kept vertical. At the same time, the movable rod 2 is kept perpendicular to the first connecting rod 3, the second connecting rod 4 and the fixed frame 5. The movable rod 2 can move up and down along the inside of the fixed frame 5. By observing the change of the scale on one side of the movable rod 2, the height difference between the fixed rod 1 and the movable rod 2 can be quickly calculated. After multi-point measurement, the overall height difference of the road surface can be quickly determined.

[0027] Furthermore, when it is necessary to store the equipment, turn the knob 6 to retract the two first limiting rods 10 into the interior of the first connecting rod 3. The first return spring 19 returns to its original position and extends, causing the second limiting rod 11 to move. This allows the second limiting rod 11 to retract completely into the interior of the second connecting rod 4, thereby folding the first connecting rod 3 and the second connecting rod 4 so that the fixed rod 1 and the movable rod 2 are close together and tied together, making it convenient for storage and transportation.

[0028] Furthermore, the first connecting rod 3 has a movable groove 12 machined inside, the movable block 9 is movably connected inside the movable groove 12, one end of the movable groove 12 has a connecting groove 13 machined, and the first limiting rod 10 is movably connected inside the connecting groove 13. When the rack 8 drives the movable block 9 to move, the movable block 9 will move along the inside of the movable groove 12, and the movable groove 12 will limit the movement of the movable block 9. At the same time, the movable block 9 will drive the first limiting rod 10 to move, and the first limiting rod 10 will move along the inside of the connecting groove 13.

[0029] Furthermore, a first slot 14 is machined inside one side of the fixing rod 1, one end of the first limiting rod 10 is plugged into the inside of the first slot 14, a limiting groove 15 is machined inside the second connecting rod 4, one end of the first limiting rod 10 is plugged into the inside of the limiting groove 15, and the second limiting rod 11 is movably connected to the inside of the limiting groove 15. A second slot 16 is machined inside the fixing frame 5, and one end of the second limiting rod 11 is plugged into the inside of the second slot 16.

[0030] When the movable block 9 moves the first limiting rod 10, one end of the first limiting rod 10 will be inserted into the first slot 14 on one side of the fixed rod 1, and one end of the other first limiting rod 10 will be inserted into the limiting groove 15, and push the second limiting rod 11 to move along the inside of the limiting groove 15, so that one end of the second limiting rod 11 is inserted into the second slot 16 on one side of the fixed frame 5.

[0031] Furthermore, a groove 17 is machined in the middle of the limiting groove 15, and a push block 18 is fixedly connected to the middle of the second limiting rod 11. The push block 18 is movably connected inside the groove 17, and a first reset spring 19 is fixedly connected to one side of the push block 18. One end of the first reset spring 19 is fixedly connected to the inner wall of one end of the groove 17.

[0032] When the first limiting rod 10 pushes the second limiting rod 11 to move, the second limiting rod 11 will drive the pushing block 18 to move. The pushing block 18 will move along the inside of the groove 17. At the same time, the pushing block 18 will compress the first return spring 19. When the first limiting rod 10 retracts into the inside of the first connecting rod 3, the first return spring 19 will return and extend. Through the elastic potential energy of the spring, the second limiting rod 11 will be driven to move, so that the second limiting rod 11 will disengage from the inside of the second slot 16 and retract into the inside of the limiting groove 15.

[0033] Furthermore, a pull block 20 is provided on one side of the first connecting rod 3, and a positioning pin 22 is fixedly connected to the inner side of the pull block 20. The positioning pin 22 is movably connected to the inside of the first connecting rod 3. Two positioning holes 23 are machined on one side of the rack 8. One end of the positioning pin 22 is inserted into the inside of the positioning hole 23. When the knob 6 needs to be rotated, the pull block 20 is pulled outward, and the pull block 20 will drive the positioning pin 22 to move. The positioning pin 22 will disengage from the inside of the rack 8. When the first limiting rod 10 and the second limiting rod 11 are respectively inserted into the limiting groove 15 and the second slot 16, one end of the positioning pin 22 is inserted into the inside of the positioning hole 23, thereby limiting and fixing the first limiting rod 10 and the second limiting rod 11.

[0034] Furthermore, a second return spring 21 is provided on the outside of the positioning pin 22. One end of the second return spring 21 is fixedly connected to the inside of the pull block 20, and the other end of the second return spring 21 is fixedly connected to the outside of the first connecting rod 3. With the second return spring 21 provided, when the pull block 20 is pulled, the pull block 20 will drive the second return spring 21 to stretch. When the pull block 20 is released, the second return spring 21 will return to its original position and retract. The second return spring 21 will drive the positioning pin 22 to move, thereby allowing the positioning pin 22 to be inserted into the interior of the positioning hole 23.

[0035] Working principle: By first pulling apart the fixed rod 1 and the movable rod 2, the first connecting rod 3 and the second connecting rod 4 are made perpendicular to the fixed rod 1. By rotating the knob 6, the movable block 9 and the first limiting rod 10 are moved through the gear 7 and rack 8, so that the first limiting rod 10 is inserted into the fixed rod 1 and the second connecting rod 4 respectively, limiting and fixing them. At the same time, the second limiting rod 11 is pushed into the fixed frame 5, so that the second connecting rod 4 is fixed to the fixed frame 5. Thus, the first connecting rod 3, the second connecting rod 4 and the fixed frame 5 are in a horizontal straight line and perpendicular to the fixed rod 1 and the movable rod 2. Adjust the circular level of the fixed rod 1 to make it vertical. The movable rod 2 can move up and down along the fixed frame 5. By observing the change of the scale on one side of the movable rod 2, the height difference between the two points of the fixed rod 1 and the movable rod 2 can be quickly calculated. Through multi-point measurement, the overall height difference of the road surface can be quickly determined.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A measuring device for construction engineering, comprising a fixed rod (1) and a movable rod (2), characterized in that, The top inner side of the fixed rod (1) is hinged to a first connecting rod (3), and one end of the first connecting rod (3) is hinged to a second connecting rod (4). The outside of the movable rod (2) is movably connected to a fixed frame (5). One end of the second connecting rod (4) is hinged to the inner side of the fixed frame (5). A knob (6) is provided on the top of the first connecting rod (3). The bottom of the knob (6) is fixedly connected to a gear (7) via a rotating shaft. The two ends of the gear (7) are meshed with two racks (8). One end of the two racks (8) is fixedly connected to a... Two movable blocks (9) are fixedly connected to one side of two first limiting rods (10). One end of one first limiting rod (10) is plugged into the inside of the fixed rod (1), and one end of the other first limiting rod (10) is plugged into the inside of the second connecting rod (4). The inside of the second connecting rod (4) is movably connected to a second limiting rod (11). One end of the second limiting rod (11) is in contact with one end of the first limiting rod (10), and the other end of the second limiting rod (11) is plugged into the inside of the fixed frame (5).

2. The measuring device for building engineering according to claim 1, characterized in that, The first connecting rod (3) has a movable groove (12) inside, the movable block (9) is movably connected inside the movable groove (12), one end of the movable groove (12) has a connecting groove (13), and the first limiting rod (10) is movably connected inside the connecting groove (13).

3. The measuring device for building engineering according to claim 1, characterized in that, The fixing rod (1) has a first slot (14) machined inside one side, and one end of the first limiting rod (10) is plugged into the inside of the first slot (14).

4. A measuring device for building engineering according to claim 1, characterized in that, The second connecting rod (4) has a limiting groove (15) machined inside. One end of the first limiting rod (10) is plugged into the limiting groove (15), and the second limiting rod (11) is movably connected inside the limiting groove (15).

5. A measuring device for building engineering according to claim 1, characterized in that, The inner side of the fixed frame (5) is machined with a second slot (16), and one end of the second limiting rod (11) is plugged into the inside of the second slot (16).

6. A measuring device for building engineering according to claim 4, characterized in that, The limiting groove (15) has a groove (17) machined in the middle. The second limiting rod (11) is fixedly connected to a push block (18) in the middle. The push block (18) is movably connected inside the groove (17). A first reset spring (19) is fixedly connected to one side of the push block (18). One end of the first reset spring (19) is fixedly connected to the inner wall of one end of the groove (17).

7. A measuring device for building engineering according to claim 1, characterized in that, A pull block (20) is provided on one side of the first connecting rod (3). A positioning pin (22) is fixedly connected to the inner side of the pull block (20). The positioning pin (22) is movably connected to the inside of the first connecting rod (3). Two positioning holes (23) are machined on one side of the rack (8). One end of the positioning pin (22) is inserted into the inside of the positioning hole (23).

8. A measuring device for construction engineering according to claim 7, characterized in that, The positioning pin (22) is provided with a second return spring (21) on its outside. One end of the second return spring (21) is fixedly connected to the inside of the pull block (20), and the other end of the second return spring (21) is fixedly connected to the outside of the first connecting rod (3).

Images