Portable calibrator for bridge engineering construction
By introducing a laser flashlight and magnet design into the calibrator used in bridge engineering construction, the operating process is simplified, the problems of complex operation and low detection accuracy of existing calibrators are solved, and efficient and accurate bridge level detection is achieved.
Patent Information
- Application Number
- CN202422884681.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The portable calibration instruments currently used in bridge construction are complex to operate and rely on visual inspection to determine the horizontality of the bridge, resulting in reduced detection accuracy.
A calibrator was designed, which includes a circular detection table, a scale ring and a scale bar. It is equipped with a laser flashlight and a magnet. The horizontality is determined by irradiating the center with laser light. The winding and retracting components are used to simplify the operation. The pendulum is suspended stably to avoid collision damage.
It achieves simple operation, improves detection efficiency and accuracy, can quickly determine the tilt direction of the bridge, and improves the practicality and portability of bridge level detection.
Smart Images
Figure CN223412732U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering detection, in particular to a portable calibrator for bridge engineering construction. Background Art
[0002] A bridge generally refers to a structure built across rivers, lakes, or seas to facilitate the smooth passage of vehicles and pedestrians. To adapt to the rapid development of modern transportation, a bridge has also been extended to encompass structures built to facilitate travel across mountain streams, over unfavorable geological conditions, or to meet other transportation needs. Calibrators are often used in bridge construction to measure the bridge's level.
[0003] For example, the existing patent publication number CN216645344U, entitled A portable calibrator for bridge engineering construction, proposes that in this utility model, a horizontal module is placed on a bearing platform, and the horizontal module is adjusted to be suspended on the bearing platform through the fulcrum on the bearing platform and the limiting arc plate at the bottom of the support plate, and then the locking module on the horizontal module is removed, and the counterweight ball at the corresponding position on the guide plate is used to pass through the horizontal state of the reference plane. When the reference plane is in a non-horizontal state, the counterweight ball at the corresponding position will move in the horizontal measurement groove on the guide plate, thereby causing the horizontal module to tilt, so that the horizontal state of the bridge can be effectively and quickly measured.
[0004] However, the portable calibration instrument for bridge construction disclosed in the appeal patent is complicated to operate and relies on visual inspection to judge the horizontality of the bridge, which reduces the accuracy of bridge level detection. Therefore, it is necessary to propose a portable calibration instrument for bridge construction to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a portable calibration instrument for bridge engineering construction, so as to solve the problem that the existing portable calibration instrument for bridge engineering construction is complicated to operate when in use and relies on visual inspection to judge the horizontality of the bridge, which reduces the accuracy of bridge level detection.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable calibration instrument for bridge engineering construction, comprising a detection platform with a circular structure, the upper surface of the detection platform is fixedly provided with a plurality of evenly distributed scale rings, the upper surface of the detection platform is also fixedly provided with a cross-shaped scale bar, each unit scale on the scale ring and the scale bar coincides with each other, a sleeve rod is fixedly provided on the edge of the top of the detection platform, the sleeve rod is provided with two, and the two sleeve rods are symmetrically distributed about the center line of the detection platform, a telescopic rod is slidably provided inside the sleeve rod through a retraction assembly, a connecting rod is fixedly provided at one end of the telescopic rod movably extending out of the top of the sleeve rod, a winding box is fixedly connected between the two connecting rods, a hanging wire is provided inside the winding box through the winding assembly, a first limiting hole for the hanging wire to movably pass through is fixedly provided at the bottom of the winding box, a hanging hammer is fixedly connected at one end of the hanging wire movably extending out of the first limiting hole, a laser flashlight is provided inside the hanging hammer, a light emitting end of the laser flashlight is connected to a connecting pipe, and the connecting pipe extends out of the tip of the hanging hammer;
[0007] When the test bench is in a horizontal position, the connecting pipe is located above the center of the test bench.
[0008] Preferably, the winding assembly includes a winding rod rotatably arranged inside the winding box, one end of the winding rod movably extending out of the side of the winding box is fixedly connected to a turntable, a push rod is fixedly arranged on the side near the outer ring of the turntable, and the end of the hanging line away from the hanging hammer is wound around the winding rod.
[0009] Preferably, a support rod is fixedly provided inside the winding box, and a guide ring for the suspension line to pass through is fixedly provided in the middle of the support rod, and the guide ring and the first limiting hole correspond to each other in vertical position.
[0010] Preferably, the retraction assembly includes a threaded rod rotatably arranged inside the sleeve rod, a threaded groove threadably connected to the threaded rod is fixedly arranged inside the telescopic rod, a power shaft is rotatably arranged on the side of the bottom of the hammer, a handle and a first bevel gear are fixedly arranged at both ends of the power shaft, a second bevel gear is fixedly arranged at the outer ring of the threaded rod, and the first bevel gear and the second bevel gear are engaged with each other.
[0011] Preferably, a magnet is fixedly provided at the bottom of the winding box, and a second limiting hole corresponding to the first limiting hole is fixedly provided at the middle of the magnet.
[0012] Preferably, when the telescopic rod is fully retracted into the sleeve rod, the magnet and the pendant are attracted to each other, and at this time there is a gap between the connecting tube and the testing platform.
[0013] The technical effects and advantages of this utility model are:
[0014] 1. This portable calibrator for bridge construction is easy to operate, improves detection efficiency, and can measure the levelness of the detection position and know the tilting direction. It has good practicality and solves the problem that the existing portable calibrators for bridge construction are complicated to operate and rely on visual inspection to judge the levelness of the bridge, which reduces the accuracy of bridge level detection.
[0015] 2. By installing the retractable component, the telescopic rod is extended during testing to allow sufficient adjustment space for the pendulum. After the test, the telescopic rod is stored to shrink the device, making it easier to carry.
[0016] 3. The magnet is set to easily attract and fix the pendant, avoiding the problem of damage caused by collision with external objects after the pendant swings. At this time, there is a gap between the connecting pipe and the test table, which will not cause damage to the tip of the pendant, thus improving the practicality of the device.
[0017] 4. By setting the support rod and guide ring, the hanging line can be displaced perpendicular to the first limit hole, so that the hanging hammer can be displaced up and down stably, thereby improving the efficiency of detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The utility model is a schematic diagram of a three-dimensional structure of a portable calibration instrument for bridge engineering construction from a top view.
[0019] Figure 2 The utility model is a schematic diagram of the upward-looking three-dimensional structure of a portable calibration instrument for bridge engineering construction.
[0020] Figure 3 This is a schematic diagram of the structure of the winding component of the utility model.
[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the shrinking component of the utility model.
[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the hanging hammer of the present utility model.
[0023] In the figure: 1. Testing table; 2. Scale bar; 3. Scale ring; 4. Sleeve rod; 5. Telescopic rod; 6. Connecting rod; 7. Winding box; 8. Winding rod; 9. Support rod; 10. Guide ring; 11. Turntable; 12. Push rod; 13. Hanging wire; 14. Hanging hammer; 15. Magnet; 16. Threaded rod; 17. Power shaft; 18. Handle; 19. Threaded groove; 20. Laser flashlight; 21. Connecting pipe. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] The utility model provides Figure 1-Figure 5 The portable calibration instrument for bridge engineering construction shown in the figure comprises a test platform 1 with a circular structure. A plurality of evenly distributed scale rings 3 are fixedly provided on the upper surface of the test platform 1. A cross-shaped scale bar 2 is also fixedly provided on the upper surface of the test platform 1. Each unit scale on the scale ring 3 and the scale bar 2 coincides with each other. A sleeve rod 4 is fixedly provided on the edge of the top of the test platform 1. There are two sleeve rods 4, and the two sleeve rods 4 are symmetrically distributed about the center line of the test platform 1. A telescopic rod 5 is slidably provided inside the sleeve rod 4 through a contraction component, and the telescopic rod 5 is movable out of the top of the sleeve rod 4. A connecting rod 6 is fixedly provided at one end, a winding box 7 is fixedly connected between the two connecting rods 6, a hanging wire 13 is provided inside the winding box 7 through a winding assembly, a first limiting hole for the hanging wire 13 to pass through is fixedly provided at the bottom of the winding box 7, and a hanging hammer 14 is fixedly connected to one end of the hanging wire 13 that extends out of the first limiting hole, a laser flashlight 20 is provided inside the hanging hammer 14, and a light emitting end of the laser flashlight 20 is connected to a connecting tube 21, which extends out of the tip of the hanging hammer 14. When the testing platform 1 is in a horizontal position, the connecting tube 21 is located above the center of the testing platform 1.
[0026] When using this portable calibration instrument for bridge engineering construction, place the inspection platform 1 at the position to be inspected, push up the telescopic rod 5 through the contraction component, increase the distance between the winding box 7 and the inspection platform 1, and then release the hanging line 13 through the winding component. Under the gravity of the hanging hammer 14, the hanging line 13 is pulled out from the winding box 7. Since the hanging hammer 14 is always perpendicular to the center of the earth under the action of gravity, start the laser flashlight 20 and emit a green laser through the connecting tube 21. If the inspection position is horizontal, the laser will illuminate the center of the inspection platform 1. If the inspection position is not horizontal, the laser will illuminate the non-horizontal part of the inspection platform 1. The center is located at the center, and through the cooperation of the scale bar 2 and the scale ring 3, the position of the laser irradiation on the detection platform 1 can be read, and then the horizontality of the detection position can be calculated through calculation. Therefore, compared with the traditional portable calibrator for bridge engineering construction, the portable calibrator for bridge engineering construction is simple to operate, improves the efficiency of detection, and can measure the horizontality of the detection position and know in which direction to tilt. It has good practicality and solves the problem that the existing portable calibrator for bridge engineering construction is complicated to operate and relies on visual inspection to judge the horizontality of the bridge, which reduces the accuracy of bridge level detection.
[0027] Specifically, the winding assembly includes a winding roller 8 that is rotatably arranged inside the winding box 7. One end of the winding roller 8 that extends movably from the side of the winding box 7 is fixedly connected to a turntable 11. A push rod 12 is fixedly arranged on the side near the outer circle of the turntable 11, and the end of the hanging wire 13 away from the hanging hammer 14 is wound around the winding roller 8.
[0028] When the suspension line 13 is retracted or extended, the push rod 12 is rotated to drive the turntable 11 and the winding rod 8 to rotate, thereby retracting or extending the suspension line 13. In addition, a support rod 9 is fixedly provided inside the winding box 7, and a guide ring 10 is fixedly provided in the middle of the support rod 9 for the suspension line 13 to pass through. The guide ring 10 and the first limiting hole correspond to each other in the vertical position. This arrangement allows the suspension line 13 to be displaced perpendicular to the first limiting hole, so that the hanging hammer 14 can be stably displaced up and down, thereby improving the efficiency of detection.
[0029] Furthermore, the retraction assembly includes a threaded rod 16 rotatably arranged inside the sleeve rod 4, a threaded groove 19 is fixedly arranged inside the telescopic rod 5 and is threadedly connected to the threaded rod 16, a power shaft 17 is rotatably arranged on the side of the bottom of the hammer 14, and a handle 18 and a first bevel gear are fixedly arranged at both ends of the power shaft 17, and a second bevel gear is fixedly arranged at the outer ring of the threaded rod 16, and the first bevel gear and the second bevel gear are engaged with each other.
[0030] By rotating the handle 18, the power shaft 17 and the first bevel gear are driven to rotate, and then the second bevel gear and the threaded rod 16 are driven to rotate. Since the horizontal cross-sections of the sleeve rod 4 and the telescopic rod 5 are both rectangular, the threaded groove 19 and the telescopic rod 5 are pushed up and down, which facilitates the extension of the telescopic rod 5 during testing and the storage after the test. During testing, the telescopic rod 5 is extended to allow enough adjustment space for the pendulum 14. After the test, the telescopic rod 5 is stored to shrink the device, thereby facilitating the portability of the device.
[0031] Furthermore, a magnet 15 is fixedly provided at the bottom of the winding box 7, and a second limiting hole corresponding to the first limiting hole is fixedly provided in the middle of the magnet 15. When the telescopic rod 5 is fully retracted into the sleeve rod 4, the magnet 15 and the pendant 14 are magnetically attracted to each other. The setting of the magnet 15 facilitates the absorption and fixation of the pendant 14, thereby avoiding the problem of damage caused by collision between the pendant 14 and external objects after swinging, thereby improving the practicality of the device. At this time, there is a gap between the connecting tube 21 and the test platform 1, so that the tip of the pendant 14 will not be damaged.
Claims
1. A portable calibration instrument for bridge engineering construction, comprising a circular detection platform (1), characterized in that: The upper surface of the detection platform (1) is fixedly provided with a plurality of evenly distributed scale rings (3), and the upper surface of the detection platform (1) is also fixedly provided with a cross-shaped scale bar (2), and each unit scale on the scale ring (3) and the scale bar (2) overlaps with each other. A sleeve rod (4) is fixedly provided on the edge of the top of the detection platform (1), and two sleeve rods (4) are provided. The two sleeve rods (4) are symmetrically distributed about the center line of the detection platform (1), and a telescopic rod (5) is slidably provided inside the sleeve rod (4) through a contraction component, and the telescopic rod (5) is movably extended out of one end of the top of the sleeve rod (4). A connecting rod (6) is fixedly provided, and a winding box (7) is fixedly connected between the two connecting rods (6); a suspension line (13) is provided inside the winding box (7) through a winding assembly; a first limiting hole for the suspension line (13) to movably pass through is fixedly provided at the bottom of the winding box (7); one end of the suspension line (13) movably extending out of the first limiting hole is fixedly connected to a hanging hammer (14); a laser flashlight (20) is provided inside the hanging hammer (14); a light emitting end of the laser flashlight (20) is connected to a connecting tube (21), and the connecting tube (21) extends out of the tip of the hanging hammer (14); When the testing platform (1) is in a horizontal position, the connecting pipe (21) is located above the center of the testing platform (1).
2. The portable calibrator for bridge construction according to claim 1, characterized in that: The winding assembly includes a winding roller (8) rotatably arranged inside the winding box (7), one end of the winding roller (8) movably extending from the side of the winding box (7) is fixedly connected to a turntable (11), a push rod (12) is fixedly arranged on the side near the outer circle of the turntable (11), and the end of the hanging wire (13) away from the hanging hammer (14) is wound around the winding roller (8).
3. The portable calibrator for bridge construction according to claim 2, characterized in that: A support rod (9) is fixedly provided inside the winding box (7), and a guide ring (10) for the suspension line (13) to pass through is fixedly provided in the middle of the support rod (9), and the guide ring (10) and the first limiting hole correspond to each other in vertical position.
4. The portable calibrator for bridge construction according to claim 1, characterized in that: The retraction assembly includes a threaded rod (16) rotatably arranged inside the sleeve rod (4); a threaded groove (19) threadedly connected to the threaded rod (16) is fixedly arranged inside the telescopic rod (5); a power shaft (17) is rotatably arranged on the side of the bottom of the pendulum (14); a handle (18) and a first bevel gear are fixedly arranged at both ends of the power shaft (17); a second bevel gear is fixedly arranged at the outer ring of the threaded rod (16); and the first bevel gear and the second bevel gear are meshed with each other.
5. The portable calibrator for bridge construction according to claim 3, characterized in that: A magnet (15) is fixedly provided at the bottom of the winding box (7), and a second limiting hole corresponding to the first limiting hole is fixedly provided at the middle of the magnet (15).
6. The portable calibration instrument for bridge construction according to claim 5, characterized in that: When the telescopic rod (5) is completely retracted into the sleeve rod (4), the magnet (15) and the pendulum (14) are magnetically attracted to each other, and at this time, a gap exists between the connecting pipe (21) and the detection platform (1).