Detection device for grid structure type building

Abstract

The utility model relates to the technical field of engineering detection, and particularly discloses a grid structure type building detection device, which comprises a mounting plate and an adaptive plate, a plurality of ring grooves with downward openings are formed in the bottom surface of the mounting plate, the adaptive plate is clamped in the ring grooves, the adaptive plate is in an empty barrel shape, a horizontal rubber ring is arranged on the inner wall of the lower end of the adaptive plate, and the rubber ring is clamped in the ring grooves. The rubber ring is used for fitting the inner wall of the ball joint; a vertical plumb bob is arranged on the top surface of the mounting plate, a containing groove for placing the prism is formed in the top surface of the mounting plate, and a plurality of level bubbles which are uniformly distributed in the circumferential direction are further arranged on the top surface of the mounting plate. According to the scheme, the problem that the prism matched with the total station for use is difficult to be stably placed on the spherical node when the coordinate change of the spherical node is monitored in the existing grid structure can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering detection, and particularly relates to a detection device for a grid structure building. Background Art

[0002] A grid structure is a space structure formed by connecting multiple rods in a certain grid form through spherical joints. It has the advantages of small space stress, light weight, large stiffness, good seismic performance, etc., and can be used as the roof of buildings such as gymnasiums, theaters, exhibition halls, waiting halls, stadium stands awning, aircraft hangars, and workshops with large column spacings in both directions.

[0003] When a steel structure grid is in use, in order to monitor and evaluate the health status of the structure, timely detect abnormalities in loads and structural responses, provide guarantees for the safe operation of the structure, timely provide monitoring data information, and provide a reference basis for judging the damage degree and location caused by disaster events, it is necessary to construct a numerical model of a large-span welded spherical steel grid, and calculate the simulated deformation values of the large-span welded spherical steel grid during the lifting process. Select the total station measurement method to calculate the elevation values of each monitoring point of the steel grid, collect the coordinate changes of the same monitoring point multiple times, calculate various deformation indexes, and judge whether each deformation index exceeds the corresponding deformation warning value. The data will guide the design of future large-span space structures and provide important references for the research of new technologies for large-span space structures.

[0004] When measuring the coordinates of the spherical joint, the prism of the total station needs to be placed on the spherical joint. The total station can only aim at the prism during measurement, and the deviation of the prism will cause a deviation between the measurement point and the actual observation point. In order to ensure that the prism is aimed at the total station, it is generally adjusted manually by climbing the ladder regularly, which is time-consuming and laborious, with poor safety. Moreover, the top surface of the spherical joint is an arc surface, and it is difficult for the prism to be placed stably for a long time, resulting in low work efficiency. Content of the Utility Model

[0005] The utility model aims to provide a detection device for a grid structure building to solve the problem that it is difficult to stably place the prism used in conjunction with the total station on the spherical joint when monitoring the coordinate changes of the spherical joint in the existing grid structure.

[0006] To solve the above problems, the technical solution adopted by the utility model is as follows: A detection device for a grid structure building includes a mounting plate and an adapter plate. A plurality of downward-opening annular grooves are formed on the bottom surface of the mounting plate, and the adapter plate is clamped in the annular grooves. The adapter plate is in the shape of an empty barrel, and a horizontal rubber ring is provided on the inner wall of the lower end of the adapter plate for fitting the inner wall of the spherical joint.

[0007] A vertical plumb bob is provided on the top surface of the mounting plate. A receiving groove for placing the prism is formed on the top surface of the mounting plate, and a plurality of level bubbles evenly distributed along the circumferential direction are also provided on the top surface of the mounting plate.

[0008] The basic principle of this solution is as follows: The hollow columnar adapter plate is lapped with the upper surface of the spherical node. The rubber ring on the inner wall of the lower end of the adapter plate touches the outer wall of the spherical node. Then, the mounting plate is horizontally clamped on the upper end of the adapter plate. The plumb bob and the spirit level on the mounting plate are used to adjust the mounting plate to be horizontal. By inserting the prism into the receiving groove, it can be ensured that the prism is stably placed on the spherical node and perpendicular to the ground.

[0009] The beneficial effects of this solution are as follows: When measuring the coordinates of the existing spherical node, it is necessary to place the prism of the total station on the spherical node. The total station can only aim at the prism during measurement, and the deviation of the prism will cause a deviation between the measurement point and the actual observation point. In this solution, the mounting plate is horizontally lapped on the spherical node by setting the adapter plate. Different diameter ring grooves can be selected according to the outer diameter of the spherical node. The plumb bob and the level are built in the mounting plate to directly debug the horizontality of the mounting plate. The structure is simple and the operation is convenient.

[0010] Furthermore, magic tape straps are symmetrically arranged on both sides of the mounting plate. The mounting plate can be stably tied to the chord by using the magic tape straps.

[0011] Furthermore, the mounting plate includes a base and several stepped ring plates. Both the base and the stepped ring plates are annular. The longitudinal section of the base is "L"-shaped, and the longitudinal section of the stepped ring plate is "Z"-shaped. The diameters of the stepped ring plates gradually decrease. The outer wall of the stepped ring plate with the largest diameter can fit with the inner wall of the base, and the inner wall of the stepped ring plate with a larger diameter can fit with the outer wall of its adjacent stepped ring plate with a smaller diameter. The ring grooves are opened on the bottom surfaces of the stepped ring plates. The mounting plate adopts a detachable splicing structure. If the spherical node to be measured is located inside the entire grid structure, the middle of the stepped ring plate is hollow for the chord on the spherical node to pass through.

[0012] Furthermore, the rubber ring is a magnetic rubber ring, and the side of the magnetic rubber ring relative to the spherical node can be adsorbed on the spherical node. Since the spherical node is made of hollow steel structure and has certain magnetism, the stability of the device is improved by using the magnetic rubber ring.

[0013] Furthermore, a vertical auxiliary rod is provided on the mounting plate. The upper end of the plumb bob is connected to the upper end of the auxiliary rod through a thin rope.

[0014] Furthermore, a layer of magnet is provided on the bottom surface of the prism, and the prism is adsorbed on the surface of the mounting plate through the magnet. The prism can be freely adjusted in position on the mounting plate.

[0015] Furthermore, the auxiliary rod is detachably installed on the surface of the mounting plate, and a layer of magnet is provided on the bottom surface of the auxiliary rod, and it is adsorbed on the upper surface of the mounting plate through the magnet. The position of the auxiliary rod can be adjusted as needed to avoid the chord on the spherical node. Description of the Drawings

[0016] Figure 1It is a side sectional view of Embodiment 1 of the present utility model;

[0017] Figure 2 It is a top view of Embodiment 1 of the present utility model;

[0018] Figure 3 It is a schematic diagram of Embodiment 2 of the present utility model;

[0019] Figure 4 It is a structural schematic diagram of the prism of the present utility model. Detailed implementation manners

[0020] The following is a further detailed description through specific implementation manners:

[0021] The reference numerals in the accompanying drawings of the specification include: mounting plate 1, adapter plate 2, plumb bob 3, Velcro tie 4, receiving groove 5, spirit level 6, first annular groove 7, second annular groove 8, third annular groove 9, fourth annular groove 10, rubber ring 11, spherical joint 12, prism 13, base 101, stepped annular plate 102.

[0022] The embodiment is basically as shown in Figure 1 to Figure 4 shown:

[0023] A detection device for a grid structure type building, including a mounting plate 1 and an adapter plate 2. A plurality of concentric annular grooves are formed on the ground of the mounting plate 1. In this embodiment, the annular grooves include the first annular groove 7, the second annular groove 8, the third annular groove 9, and the fourth annular groove 10 that are nested layer by layer from outside to inside. Among them, the outer diameter of the first annular groove 7 is 750 mm, the outer diameter of the second annular groove 8 is 550 mm, the outer diameter of the third annular groove 9 is 350 mm, and the outer diameter of the fourth annular groove 10 is 200 mm. A barrel-shaped adapter plate 2 is detachably connected in the annular groove, and the outer diameter size of the adapter plate 2 is selected according to the outer diameter of the annular groove, so that the adapter plate 2 can be sleeved on the upper spherical surface of the spherical joint.

[0024] In this embodiment, the mounting plate 1 is in the shape of a circular plate. A vertical auxiliary rod is installed on the top of the mounting plate 1. A vertical reference line is marked on the side of the auxiliary plate facing the plumb bob 3. The top of the auxiliary rod is connected with a plumb bob 3 through a thin string. A square receiving groove 5 is formed on the top surface of the mounting plate 1 in front of the plumb bob 3. The receiving groove 5 is used for laying the prism 13 flat. The prism 13 in this embodiment is a right-angle bracket type prism 13. In this embodiment, the auxiliary rod is in an "L" shape, and a layer of magnet is installed on the bottom surface of the auxiliary rod, so that the auxiliary rod and the plumb bob 3 can be detachably adsorbed on the mounting plate 1.

[0025] A circular rubber strip is installed at the lower part of the inner wall of the adapter plate 2. The circular rubber strip forms a step on the inner wall of the adapter plate 2, so that the adapter plate 2 can be restricted and laid flat on the spherical joint.

[0026] In this embodiment, in order to ensure the stability of the detection device during the process of lifting the grid structure, lifting lugs are symmetrically welded on both sides of the mounting plate 1, and the magic tape tie 4 is passed through the lifting lugs, and the mounting plate 1 is fixed on the chord truss through the magic tape tie 4.

[0027] The specific implementation process is as follows:

[0028] Select a suitable adapter plate 2 according to the outer diameter of the spherical node. The upper end of the adapter plate 2 is snapped into the annular groove of the mounting plate 1, and the prism 13 is snapped into the receiving groove 5. Adjust the angle of the adapter plate 2 on the spherical node 12 according to the spirit level 6 and the plumb bob 3, so that the line of the plumb bob 3 coincides with the vertical reference line and the bubble in the spirit level 6 is in the center position, thus completing the leveling of the adapter plate 2. If reinforcement is needed,

[0029] Embodiment 2:

[0030] Embodiment 2 is as Figure 3 shown. The difference between this embodiment and Embodiment 1 is that the mounting plate 1 is an assembled structure. The mounting plate 1 includes a base 101 and a stepped ring plate 102. Both the base 101 and the stepped ring plate 102 are circular rings. The longitudinal section of the base 101 is in an "L" shape, and the longitudinal section of the stepped ring plate 102 is in a "Z" shape. And the stepped ring plate 102 with a smaller diameter can be placed on the stepped ring plate 102 with a larger diameter, so as to realize the stacking of multiple stepped ring plates 102. Since the stepped ring plate 102 is a circular ring, when the tested spherical node is located inside the grid structure, the middle hollow part can be used for the chord of the spherical node to pass through to avoid interference.

[0031] Embodiment 3:

[0032] The difference between Embodiment 3 and the above embodiments is that the rubber strip is replaced by magnetic rubber. Since the spherical node 12 is made of steel structure and has a certain magnetism, the magnetic rubber strip is used to assist the adapter plate 2 to adsorb on the surface of the spherical node 12, so that the adapter plate 2 fits more firmly on the spherical node.

[0033] The above are only the embodiments of the present invention. Common general knowledge such as specific structures and characteristics in the solutions is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners in the specification and the like can be used to interpret the content of the claims.

Claims

1. A detection device for a grid structure type building, characterized in that: It includes a mounting plate and an adapter plate. A number of downward-opening annular grooves are formed on the bottom surface of the mounting plate, and the adapter plate is snap-fitted into the annular grooves. The adapter plate is in the shape of an empty barrel, and a horizontal rubber ring is provided on the inner wall of the lower end of the adapter plate for fitting against the inner wall of the spherical joint. A vertical plumb bob is provided on the top surface of the mounting plate. A receiving groove for placing a prism is formed on the top surface of the mounting plate, and a number of level bubbles evenly distributed in the circumferential direction are also provided on the top surface of the mounting plate.

2. The detection device for a grid structure type building according to claim 1, wherein: Magic tape straps are symmetrically provided on both sides of the mounting plate.

3. The detection device for a grid structure type building according to claim 2, wherein: The mounting plate includes a base and a number of stepped annular plates. Both the base and the stepped annular plates are annular. The longitudinal section of the base is in the shape of "L", and the longitudinal section of the stepped annular plate is in the shape of "Z". The diameters of the stepped annular plates decrease one by one. The outer wall of the stepped annular plate with the largest diameter can be fitted against the inner wall of the base, and the inner wall of the stepped annular plate with a larger diameter can be fitted against the outer wall of its adjacent stepped annular plate with a smaller diameter; the annular grooves are formed on the bottom surfaces of the respective stepped annular plates.

4. The detection device for a grid structure type building according to claim 3, characterized in that: The rubber ring is a magnetic rubber ring, and the side of the magnetic rubber ring facing the spherical joint can be adsorbed on the spherical joint.

5. The detection device for a grid structure type building according to claim 4, wherein: A vertical auxiliary rod is provided on the mounting plate, and the upper end of the plumb bob is connected to the upper end of the auxiliary rod by a thin string.

6. The detection device for a grid structure type building according to claim 5, characterized in that: A layer of magnet is provided on the bottom surface of the prism, and the prism is adsorbed on the surface of the mounting plate by the magnet.

7. The detection device for a grid structure type building according to claim 6, wherein: The auxiliary rod is detachably mounted on the surface of the mounting plate, and a layer of magnet is provided on the bottom surface of the auxiliary rod for adsorbing on the upper surface of the mounting plate by the magnet.

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