A field measurement device for erection of segmental prefabricated bridges

Abstract

The present invention relates to the technical field of measuring equipment, and specifically to a field measuring equipment for construction of segmental prefabricated bridges, comprising a base, a mounting frame and a measuring instrument, wherein a level detector is fixedly mounted on the lower side of the mounting frame, multiple groups of legs are circumferentially mounted on the outer side of the base, and telescopic rods are sleeved on the outer sides of the multiple groups of legs, and a cleaning assembly for cleaning the measuring instrument is mounted on the outer side of the base, and the cleaning assembly comprises a motor fixedly mounted on the side wall of the base. The present invention starts the motor to drive the moving plate and the cleaning plate to rotate, and then under the action of the cleaning plate, the measuring instrument lens can be wiped, and the cleaning effect is good, thereby maintaining the measuring effect of the measuring instrument, and during the measurement process, the position of the rotating box can be adjusted, and then during the measurement process, the staff can put their chin on the upper side of the rotating box, and during the measurement process, a certain degree of comfort is improved.

Description

Technical Field

[0001] The invention relates to the technical field of measuring equipment, and in particular to a field measuring equipment for erection construction of a segmental prefabricated bridge. Background Art

[0002] Measurement is to describe the observed phenomenon with data according to a certain law, that is, to make a quantitative description of things. Measurement is the quantification process of non-quantitative objects.

[0003] The prior art discloses a kind of urban road bridge subgrade engineering measurement equipment with publication number CN210441865U, which includes a support platform, a measuring component, a horizontal calibration component, and a supporting part; the measuring component includes a bracket, and a measuring instrument arranged on the bracket; by arranging the horizontal calibration component between the support platform and the measuring component, after the equipment is erected, it can be checked through the horizontal calibration component whether the equipment has reached a horizontal state, and the position of the movable plate and the connecting plate can be adjusted and the position of the positioning plate can be fine-tuned by adjusting the component to finally make the equipment reach a horizontal state. The structural design of the equipment is ingenious, which reduces the difficulty of operation for workers and improves the accuracy of measurement, thereby ensuring the construction quality and safety of the project.

[0004] However, when it is in use, it cannot produce any gain effect on the measuring instrument inside the measuring component. During the use of the measuring instrument, especially in the construction site of the segmental prefabricated bridge, due to the dust on site, during the on-site measurement, a large amount of dust will accumulate on the surface of the measuring instrument, especially on the display mirror on the outside of the measuring instrument due to long-term measurement work. Sometimes, in order to save trouble, the staff will directly wipe it with their sleeves. The wiping effect is generally not good, and a certain amount of dust will remain. The presence of a lot of dust sometimes affects the staff's viewing. In actual use, the device needs to be manually transported to different locations for measurement. During this process, the measuring equipment as a whole, especially the bracket part, often collides with the bridge under construction on site. Due to the high hardness of the bridge, the bracket part is likely to be damaged, but the workers cannot detect it during the transportation process. Summary of the invention

[0005] In order to solve the problems in the background technology, the present invention proposes a field measurement device for the construction of a segmental prefabricated bridge.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A field measuring equipment for the construction of a segmental prefabricated bridge comprises a base, a mounting frame and a measuring instrument, wherein a level detector is fixedly mounted on the lower side of the mounting frame, a plurality of groups of legs are circumferentially rotatably mounted on the outer side of the base, telescopic rods are sleeved on the outer sides of the plurality of groups of legs, a cleaning assembly for cleaning the measuring instrument is mounted on the outer side of the base, the cleaning assembly comprises a motor fixedly mounted on the side wall of the base, a rotating shaft is fixedly connected to the output end of the motor, a rotating plate is fixedly connected to the outer side of the rotating shaft, a first connecting rod is fixedly connected to the side wall of the rotating plate, a rotating box is fixedly connected to the outer side of the first connecting rod, an arc rod is slidably connected in the rotating box, two limit plates are fixedly connected to the outer side of the arc rod, a moving plate is slidably connected to the outer side of the arc rod, a second spring is fixedly connected between the moving plate and the limit plate, a first spring is fixedly connected between the moving plate and the rotating box, a cleaning plate is fixedly connected to the side wall of the moving plate, two fifth connecting rods are fixedly connected to the side wall of the moving plate, and two triangular plates are fixedly connected in the rotating box.

[0008] Preferably, a knocking assembly is installed on the outside of the rotating box, and the knocking assembly includes a sleeve frame fixedly installed on both ends of the arc rod, a square rod is slidably connected in the sleeve frame, a second connecting rod is fixedly connected to the side wall of the square rod, and a rubber soft rod is fixedly connected to the side wall of the second connecting rod, and two inclined grooves are symmetrically opened on the outside of the rotating box, and sliders are slidably connected in the two inclined grooves, and the slider is fixedly connected to the square rod.

[0009] Preferably, a detection component is installed on the outer side of the base, and the detection component includes a sleeve rotatably sleeved on the outer side of the rotating shaft, a transmission gear is fixedly connected to the outer side of the sleeve, and a first rack is meshedly connected to the outer side of the transmission gear, a control frame is fixedly connected to the lower side of the first rack, a plurality of sixth connecting rods are fixedly connected in the control frame, a plurality of the sixth connecting rods are commonly fixedly connected to a control ring, a fourth spring is fixedly connected between the control ring and the base, a plurality of control grooves are opened on the side wall of the control frame, a second connecting plate is slidably connected in the plurality of control grooves, a third spring is fixedly connected between the second connecting plate and the control groove, a sensor is fixedly connected to the outer side of the second connecting plate, a trapezoidal plate is fixedly connected to the inner side of the second connecting plate, a seventh connecting rod is slidably connected in the control groove, a truncated table is fixedly connected to the outer side of the seventh connecting rod, a moving frame is fixedly connected to the outer side of the moving frame, an eighth connecting rod is fixedly connected to the upper side of the eighth connecting rod, an incomplete gear is fixedly connected to the outer side of the sleeve, and the incomplete gear meshes with the second rack.

[0010] Preferably, a plurality of clamping plates are fixedly connected to the inner circumference of the sleeve, a moving ring is slidably connected to the outer side of the rotating shaft, a plurality of clamping rods are fixedly connected to the outer circumference of the moving ring, a rotating ring is rotatably connected to the outer side of the moving ring, a fourth connecting rod is fixedly connected to the side wall of the rotating ring, a first connecting plate is fixedly connected to the outer side of the fourth connecting rod, two third connecting rods are fixedly connected to the side wall of the first connecting plate, and the two third connecting rods are fixedly connected to the sleeve frame.

[0011] Preferably, a rubber strip is fixedly connected to the outer side of the sensor.

[0012] Preferably, the outer sides of the frustum and the trapezoidal plate are both smoothly arranged.

[0013] Preferably, the control frame and the moving frame are both regular polygons.

[0014] The present invention has the following beneficial effects:

[0015] 1. First, after a measurement is completed, start the motor to drive the moving plate and the cleaning plate to rotate. Then, under the action of the cleaning plate, the measuring instrument lens can be wiped. The cleaning effect is good, and the measuring effect of the measuring instrument can be maintained. In the process of measurement, the position of the rotating box can be adjusted. Then, during the measurement, the staff can put their chin on the upper side of the rotating box to improve a certain degree of comfort during the measurement.

[0016] 2. Then, in the process of the moving plate and the cleaning plate moving, the rubber rod will move, and the impact with the measuring instrument will cause the measuring instrument to move, thus causing the measuring instrument to move, thereby improving the cleaning effect of the cleaning plate;

[0017] 3. Secondly, after the motor is started, it will drive the control frame and the moving frame to move up and down, and then drive the sensor and the rubber strip to move back and forth. The moving sensor and the support foot will hit the support foot, causing the support foot and the base to vibrate as a whole, thereby cleaning the dust on the outside of the device. In this process, when the rubber strip and the support foot are in contact, the sensor is started, and the electrical signal sent by the sensor can be compared. If the data sent by the sensor is very different, it means that the bracket is damaged to a certain extent and needs to be dealt with in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the connection between the measuring instrument, the base and the mounting frame in the present invention;

[0020] Figure 3It is a connection diagram of the measuring instrument, the base and the mounting frame from another angle in the present invention;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the present invention from another angle;

[0022] Figure 5 It is a schematic diagram of the structure of the cleaning component in the present invention;

[0023] Figure 6 It is a structural schematic diagram of the rotating box in the present invention;

[0024] Figure 7 It is a top view connection schematic diagram of the rotating box in the present invention;

[0025] Figure 8 It is a connection schematic diagram of another angle of the rotating box in the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the detection component in the present invention;

[0027] Fig.10 yes Fig. 9 A magnified view of the structure at center A;

[0028] Fig.11 It is a schematic diagram of the connection between the second connecting plate and the control slot in the present invention;

[0029] Fig.12 It is a schematic diagram of the internal connection of the control tank in the present invention;

[0030] Fig.13 It is a schematic diagram of the expansion connection of the sleeve and the rotating shaft in the present invention.

[0031] In the figure: 1 base; 2 mounting frame; 3 measuring instrument; 4 support leg; 5 level detector; 6 telescopic rod; 7 cleaning assembly; 8 detection assembly; 9 motor; 10 rotating shaft; 11 rotating plate; 12 first connecting rod; 13 rotating box; 14 moving plate; 15 first spring; 16 cleaning plate; 17 limit plate; 18 square rod; 19 sleeve frame; 20 second connecting rod; 21 rubber soft rod; 22 third connecting rod; 23 first connecting plate; 24 fourth connecting rod; 25 triangle plate; 26 fifth connecting rod; 27 arc rod; 28 inclined groove; 29 slider; 30 fourth spring; 31 control ring; 32 sixth connecting rod; 33 control frame; 34 moving frame; 35 seventh connecting rod; 36 second connecting plate; 37 control groove; 38 sensor; 39 rubber strip; 40 trapezoidal plate; 41 frustum; 42 third spring; 43 clamping plate; 44 sleeve; 45 clamping rod; 46 moving ring; 47 rotating ring; 48 incomplete gear; 49 transmission gear; 50 first rack; 51 second rack; 52 second spring; 53 eighth connecting rod. DETAILED DESCRIPTION

[0032] Reference Figure 1 - Fig.13 A field measuring device for construction of a segmental prefabricated bridge comprises a base 1, a mounting frame 2 and a measuring instrument 3. A level detector 5 is fixedly mounted on the lower side of the mounting frame 2. A first ball is fixedly sleeved on the outer side of the level detector 5. The first ball is rotatably connected to the base 1. A plurality of groups of cylindrical grooves are circumferentially opened on the lower side of the mounting frame 2. Second balls are sleeved in the plurality of groups of cylindrical grooves. A square rod 18 is fixedly connected to the outer side of the second ball. A regulating threaded rod is rotatably connected to the outer side of the square rod 18. The regulating threaded rod is threadably connected to the base 1 and penetrates the base 1. A plurality of groups of clamping bolts are threadably sleeved on the outer side of the mounting frame 2. The plurality of groups of clamping bolts and the measuring instrument 3 are abutted against each other. A plurality of groups of supporting feet 4 are rotatably mounted on the outer side of the base 1. A telescopic rod 6 is sleeved on the outer side of the plurality of supporting feet 4.

[0033] First, when it is necessary to use the measuring device in this case to perform measuring operations at the bridge erection site, first adjust the support legs 4, place the entire device on the ground, and use the level detector 5 to rotate the corresponding regulating threaded rod according to the data of the level detector 5 to adjust the position of the mounting frame 2 relative to the base 1 until the position of the mounting frame 2 meets the working requirements, then place the corresponding measuring instrument 3 on the mounting frame 2, rotate the clamping bolts, install the measuring instrument 3 on the mounting frame 2, start the measuring instrument 3, and start the corresponding detection operation. The above operations are all existing technologies and no unnecessary elaboration is made;

[0034] like Figure 5 , Figure 6 , Figure 7 A cleaning assembly 7 for cleaning the measuring instrument 3 is installed on the outer side of the base 1. The cleaning assembly 7 includes a motor 9 fixedly installed on the side wall of the base 1. The output end of the motor 9 is fixedly connected to a rotating shaft 10. A rotating plate 11 is fixedly connected to the outer side of the rotating shaft 10. A first connecting rod 12 is fixedly connected to the side wall of the rotating plate 11. A rotating box 13 is fixedly connected to the outer side of the first connecting rod 12. An arc rod 27 is slidably connected in the rotating box 13. Two limit plates 17 are fixedly connected to the outer side of the arc rod 27. A moving plate 14 is slidably connected to the outer side of the arc rod 27. The moving plate 14 is located between the two limit plates 17. A second spring 52 is fixedly connected between the moving plate 14 and the limit plate 17. A first spring 15 is fixedly connected between the moving plate 14 and the rotating box 13. A cleaning plate 16 is fixedly connected to the side wall of the moving plate 14. Two fifth connecting rods 26 are fixedly connected to the side wall of the moving plate 14. Two triangular plates 25 are fixedly connected in the rotating box 13. The two fifth connecting rods 26 correspond to the two triangular plates 25 respectively.

[0035] After a measurement is completed, it is necessary to change the measuring point. At this time, hold the base 1 to lift the entire device, and select another measuring point to fix the measuring device in this case, and then start the motor 9. The motor 9 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the first connecting rod 12 to rotate through the rotating plate 11. The first connecting rod 12 drives the rotating box 13 to rotate. The rotating box 13 drives the moving plate 14 to rotate through the first spring 15. During the rotation of the moving plate 14, it should be noted that the arc rod 27 is an arc structure constructed with the rotating shaft 10 as the center of the circle, that is, the complete circle constructed with the arc rod 27 is a concentric structure with the rotating shaft 10. Secondly, when the moving plate 14 moves to the outside of the measuring instrument 3, the moving plate 14 and the measuring instrument 3 are offset, which will cause the moving plate 14 to move rightward relative to the rotating box 13 (with a rotation speed of 0.01mm). Figure 5 The direction is based on the direction of the cleaning plate 16, and then the cleaning plate 16 is stuck in the lens outside the measuring instrument 3. During this process, the motor 9 drives the rotating shaft 10 to rotate counterclockwise. When the cleaning plate 16 is stuck in the lens outside the measuring instrument 3, the rotating box 13 is still in a rotating state, so it causes the moving plate 14 to rotate clockwise relative to the rotating box 13, that is, the moving plate 14 slides on the arc rod 27, and the moving plate 14 compresses or stretches the second spring 52. When the fifth connecting rod 26 and the triangular plate 25 are against each other, it causes the moving plate 14 to move rightward relative to the rotating box 13 (with the fifth connecting rod 26 and the triangular plate 25 being against each other). Figure 7 ), the moving plate 14 drives the cleaning plate 16 to move. When the cleaning plate 16 moves out of the lens outside the measuring instrument 3, the cleaning plate 16 loses the blocking effect of the lens outside the measuring instrument 3. At this time, under the action of the second spring 52, the moving plate 14 returns to its original position relative to the rotating box 13 until the rotating box 13 and the moving plate 14 are moved to the outside of the measuring instrument 3 as a whole. As a result, after the motor 9 is started, the cleaning plate 16 can perform a cleaning operation on the lens outside the measuring instrument 3. During the measurement, the position of the rotating box 13 can be adjusted so that the rotating box 13 is located directly below the measuring instrument 3. Then, during the measurement, the staff can put their chin on the upper side of the rotating box 13, which improves a certain degree of comfort during the measurement.

[0036] like Figure 6 , Figure 8 A striking assembly is installed on the outside of the rotating box 13, and the striking assembly includes a sleeve frame 19 fixedly installed at both ends of the arc rod 27, a square rod 18 is slidably connected in the sleeve frame 19, a second connecting rod 20 is fixedly connected to the side wall of the square rod 18, and a rubber soft rod 21 is fixedly connected to the side wall of the second connecting rod 20. Two inclined grooves 28 are symmetrically opened on the outside of the rotating box 13, and a slider 29 is slidably connected in the two inclined grooves 28, and the slider 29 is fixedly connected to the square rod 18;

[0037] When the movable plate 14 enters the outer lens of the measuring instrument 3, the movable plate 14 moves to the right relative to the rotating box 13, and the rotating box 13 drives the sleeve frame 19 to move to the right through the arc rod 27, and the sleeve frame 19 drives the square rod 18 to move to the right, and the square rod 18 drives the rubber soft rod 21 to move through the second connecting rod 20. At this time, under the action of the inclined groove 28 and the slider 29, the square rod 18 will move upward relative to the sleeve frame 19, so that the rubber soft rod 21 will move upward, and the rubber soft rod 21 and the measuring instrument 3 will be against each other, causing the measuring instrument 3 to move (at this time, the measuring instrument 3 and the base 1 are in a hinged state), so that the measuring instrument 3 will be deflected, thereby improving the cleaning effect of the cleaning plate 16.

[0038] like Fig. 9 , Fig.10 , Fig.11 , Fig.12 A detection assembly 8 is installed on the outside of the base 1. The detection assembly 8 includes a sleeve 44 rotatably sleeved on the outside of the rotating shaft 10. A transmission gear 49 is fixedly connected to the outside of the sleeve 44. A first rack 50 is meshedly connected to the outside of the transmission gear 49. A control frame 33 is fixedly connected to the lower side of the first rack 50. A plurality of sixth connecting rods 32 are fixedly connected to the control frame 33. The plurality of sixth connecting rods 32 are commonly fixedly connected to a control ring 31. A fourth spring 30 is fixedly connected between the control ring 31 and the base 1. A plurality of control grooves 37 are opened on the side wall of the control frame 33. A second connecting plate 36 is slidably connected to the plurality of control grooves 37. A third spring 42 is fixedly connected between the second connecting plate 36 and the control groove 37. The outer side of the plate 36 is fixedly connected with a sensor 38, the inner side of the second connecting plate 36 is fixedly connected with a trapezoidal plate 40, the control groove 37 is slidably connected with the seventh connecting rod 35, the outer side of the seventh connecting rod 35 is fixedly connected with a truncated cone 41, the outer side of the seventh connecting rod 35 is fixedly connected with a moving frame 34, the outer side of the moving frame 34 is fixedly connected with an eighth connecting rod 53, the upper side of the eighth connecting rod 53 is fixedly connected with a second rack 51, the outer side of the sleeve 44 is fixedly connected with an incomplete gear 48, the incomplete gear 48 is meshed with the second rack 51, the control frame 33 and the moving frame 34 are both regular polygons, the outer side of the sensor 38 is fixedly connected with a rubber strip 39, and the outer sides of the truncated cone 41 and the trapezoidal plate 40 are both smooth;

[0039] First, the diameter of the transmission gear 49 is smaller than that of the incomplete gear 48. Therefore, when the incomplete gear 48 and the second rack 51 are meshed, the moving speed of the second rack 51 is greater than the moving speed of the first rack 50, which will cause the moving frame 34 to move relative to the control frame 33. During the counterclockwise rotation of the sleeve 44, the sleeve 44 drives the transmission gear 49 and the incomplete gear 48 to rotate counterclockwise, and the transmission gear 49 drives the first rack 50 and the control frame 33 to move downward. When the incomplete gear 48 and the second rack 51 are meshed, the second rack 51 drives the moving frame 34 to move downward through the eighth connecting rod 53. However, since the moving speed of the second rack 51 is greater than the moving speed of the first rack 50, the moving frame 34 moves downward faster than the control frame 33, which causes the moving frame 34 to drive the seventh connecting rod 35 and the frustum 41 to move downward relative to the control frame 33. The abutment between 41 and the trapezoidal plate 40 will cause the trapezoidal plate 40 to move. While the trapezoidal plate 40 stretches the third spring 42, it drives the sensor 38 and the rubber strip 39 to move. The rubber strip 39 and the support foot 4 abut each other. When the incomplete gear 48 and the second rack 51 are disconnected, under the action of the third spring 42, the moving frame 34 will return to its original position relative to the control frame 33. Therefore, during the movement of the control frame 33, the sensor 38 and the rubber strip 39 will move back and forth. The abutment between the moving sensor 38 and the support foot 4 will form a knocking operation on the support foot 4, causing the support foot 4 and the base 1 to vibrate as a whole, thereby cleaning the dust on the outside of the device. In this process, when the rubber strip 39 and the support foot 4 abut each other, the sensor 38 is activated, and the electrical signal emitted by the sensor 38 can be compared. If the data emitted by the sensor 38 has a large difference, this indicates that the bracket is damaged to a certain extent and needs to be dealt with in time.

[0040] like Figure 8 , Fig.10 , Fig.13 , multiple groups of clamping plates 43 are fixedly connected to the inner circumference of the sleeve 44, a moving ring 46 is slidably connected to the outer side of the rotating shaft 10, multiple groups of clamping rods 45 are fixedly connected to the outer circumference of the moving ring 46, a rotating ring 47 is rotatably connected to the outer side of the moving ring 46, a fourth connecting rod 24 is fixedly connected to the side wall of the rotating ring 47, the outer side of the fourth connecting rod 24 is fixedly connected to the first connecting plate 23, two third connecting rods 22 are fixedly connected to the side wall of the first connecting plate 23, and the two third connecting rods 22 are fixedly connected to the corresponding sleeve frame 19 respectively;

[0041] First, during the rotation of the rotating shaft 10, when the moving plate 14 and the cleaning plate 16 are not performing a cleaning operation on the measuring instrument 3, the clamping rod 45 and the clamping plate 43 are arranged in an alternating manner, that is, the rotating rotating shaft 10 drives the moving ring 46 to rotate counterclockwise, and the moving ring 46 drives the sleeve 44 to rotate counterclockwise through the clamping rod 45 and the clamping plate 43, and the sleeve 44 drives the transmission gear 49 and the incomplete gear 48 to rotate counterclockwise. When the moving plate 14 and the cleaning plate 16 perform a cleaning operation on the measuring instrument 3, the cleaning plate 16 and the moving plate 14 will move rightward relative to the rotating box 13, and the moving plate 14 drives the sleeve frame 19 and the third connecting rod 22 to move through the arc rod 27. , the third connecting rod 22 drives the rotating ring 47 to move to the right through the first connecting plate 23 and the fourth connecting rod 24, the rotating ring 47 drives the moving ring 46 to move to the right, and the moving ring 46 drives the clamping rod 45 to move, thereby causing the clamping rod 45 and the clamping plate 43 to be disconnected. At this time, under the action of the fourth spring 30, the control frame 33 returns to its original position relative to the base 1 until the cleaning plate 16 is moved out of the outer lens of the measuring instrument 3. At this time, the clamping rod 45 returns to its original position relative to the clamping plate 43. At this time, the rotating shaft 10 can continue to drive the sleeve 44 to rotate, thereby causing the control frame 33 to move up and down when the motor 9 is started, thereby forming a knocking and detection operation on the support leg 4.

[0042] Working principle: When it is necessary to use the measuring device in this case to perform measuring operations at the bridge erection site, first adjust the support feet 4, place the device as a whole on the ground, and use the level detector 5 to rotate the corresponding regulating threaded rod according to the data of the level detector 5 to adjust the position of the mounting frame 2 relative to the base 1 until the position of the mounting frame 2 meets the working needs, and then place the corresponding measuring instrument 3 on the mounting frame 2, rotate the clamping bolt, install the measuring instrument 3 on the mounting frame 2, start the measuring instrument 3, and start the corresponding detection operation. The above operations are all existing technologies and no unnecessary elaboration is made;

[0043] After a measurement is completed, it is necessary to change the measuring point. At this time, hold the base 1 to lift the entire device, and select another measuring point to fix the measuring device in this case, and then start the motor 9. The motor 9 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the first connecting rod 12 to rotate through the rotating plate 11. The first connecting rod 12 drives the rotating box 13 to rotate. The rotating box 13 drives the moving plate 14 to rotate through the first spring 15. During the rotation of the moving plate 14, it should be noted that the arc rod 27 is an arc structure constructed with the rotating shaft 10 as the center of the circle, that is, the complete circle constructed with the arc rod 27 is a concentric structure with the rotating shaft 10. Secondly, when the moving plate 14 moves to the outside of the measuring instrument 3, the moving plate 14 and the measuring instrument 3 are offset, which will cause the moving plate 14 to move rightward relative to the rotating box 13 (with a rotation speed of 0.01mm). Figure 5The direction of the cleaning plate 16 is based on the direction of the cleaning plate 16, and then the cleaning plate 16 is stuck in the lens outside the measuring instrument 3. During this process, the motor 9 drives the rotating shaft 10 to rotate counterclockwise. When the cleaning plate 16 is stuck in the lens outside the measuring instrument 3, the rotating box 13 is still in a rotating state, so it causes the moving plate 14 to rotate counterclockwise relative to the rotating box 13, that is, the moving plate 14 slides on the arc rod 27, and the moving plate 14 compresses or stretches the second spring 52. When the fifth connecting rod 26 and the triangular plate 25 are against each other, it causes the moving plate 14 to move rightward relative to the rotating box 13 (with Figure 7 ), the moving plate 14 drives the cleaning plate 16 to move. When the cleaning plate 16 moves out of the lens outside the measuring instrument 3, the cleaning plate 16 loses the blocking effect of the lens outside the measuring instrument 3. At this time, under the action of the second spring 52, the moving plate 14 returns to its original position relative to the rotating box 13 until the rotating box 13 and the moving plate 14 are moved to the outside of the measuring instrument 3 as a whole. As a result, after the motor 9 is started, the cleaning plate 16 can perform a cleaning operation on the lens outside the measuring instrument 3. During the measurement process, the position of the rotating box 13 can be adjusted so that the rotating box 13 is located directly below the measuring instrument 3. Then, during the measurement process, the staff can put their chin on the upper side of the rotating box 13, which improves a certain degree of comfort during the measurement process.

[0044] When the movable plate 14 enters the outer lens of the measuring instrument 3, the movable plate 14 moves rightward relative to the rotating box 13, and the rotating box 13 drives the sleeve frame 19 to move rightward through the arc rod 27, and the sleeve frame 19 drives the square rod 18 to move rightward, and the square rod 18 drives the rubber soft rod 21 to move through the second connecting rod 20. At this time, under the action of the inclined groove 28 and the slider 29, the square rod 18 will move upward relative to the sleeve frame 19, so that the rubber soft rod 21 will move upward, and the rubber soft rod 21 will abut against the measuring instrument 3, causing the measuring instrument 3 to move (at this time, the measuring instrument 3 and the base 1 are in a hinged state), so that the measuring instrument 3 will be deflected, thereby improving the cleaning effect of the cleaning plate 16;

[0045] During the rotation of the rotating shaft 10, when the moving plate 14 and the cleaning plate 16 do not perform a cleaning operation on the measuring instrument 3, the clamping rod 45 and the clamping plate 43 are arranged alternately, and the rotating rotating shaft 10 drives the moving ring 46 to rotate counterclockwise, and the moving ring 46 drives the sleeve 44 to rotate counterclockwise through the clamping rod 45 and the clamping plate 43, and the sleeve 44 drives the transmission gear 49 and the incomplete gear 48 to rotate counterclockwise. When the moving plate 14 and the cleaning plate 16 perform a cleaning operation on the measuring instrument 3, the cleaning plate 16 and the moving plate 14 will move to the right relative to the rotating box 13, and the moving plate 14 will drive the sleeve frame 19 and the third connecting rod 22 to move through the arc rod 27, and the first The three connecting rods 22 drive the rotating ring 47 to move rightward through the first connecting plate 23 and the fourth connecting rod 24, and the rotating ring 47 drives the moving ring 46 to move rightward, and the moving ring 46 drives the clamping rod 45 to move, thereby disconnecting the clamping rod 45 and the clamping plate 43. At this time, under the action of the fourth spring 30, the control frame 33 returns to its original position relative to the base 1 until the cleaning plate 16 is moved out of the outer lens of the measuring instrument 3. At this time, the clamping rod 45 returns to its original position relative to the clamping plate 43, and the rotating shaft 10 can continue to drive the sleeve 44 to rotate, thereby causing the control frame 33 to move up and down when the motor 9 is started, thereby performing a knocking and detection operation on the support leg 4;

[0046] During the counterclockwise rotation of the sleeve 44, the sleeve 44 drives the transmission gear 49 and the incomplete gear 48 to rotate counterclockwise, and the transmission gear 49 drives the first rack 50 and the control frame 33 to move downward. When the incomplete gear 48 and the second rack 51 are meshed, the second rack 51 drives the moving frame 34 to move downward through the eighth connecting rod 53. However, since the moving speed of the second rack 51 is greater than the moving speed of the first rack 50, the moving frame 34 moves downward faster than the control frame 33, which causes the moving frame 34 to drive the seventh connecting rod 35 and the frustum 41 to move downward relative to the control frame 33. The frustum 41 and the trapezoidal plate 40 are offset from each other, causing the trapezoidal plate 40 to move. While the trapezoidal plate 40 stretches the third spring 42, it drives the sensor 38 and the rubber The strip 39 moves, and the rubber strip 39 and the support foot 4 abut against each other. When the incomplete gear 48 and the second rack 51 are disconnected, under the action of the third spring 42, the moving frame 34 will return to its original position relative to the control frame 33. Therefore, during the movement of the control frame 33, the sensor 38 and the rubber strip 39 will move back and forth. The moving sensor 38 and the support foot 4 will abut against each other, which will form a knocking operation on the support foot 4, causing the support foot 4 and the base 1 to vibrate as a whole, thereby cleaning the dust on the outside of the device. In this process, when the rubber strip 39 and the support foot 4 abut against each other, the sensor 38 is activated, and the electrical signal emitted by the sensor 38 can be compared. If the data emitted by the sensor 38 has a large gap, this indicates that the bracket is damaged to a certain extent and needs to be dealt with in a timely manner.

Claims

1. A field measurement device for erection of a segmental prefabricated bridge, comprising a base (1), a mounting frame (2) and a measuring instrument (3), characterized in that: A level detector (5) is fixedly mounted on the lower side of the mounting frame (2); a plurality of groups of legs (4) are rotatably mounted on the outer side of the base (1); telescopic rods (6) are sleeved on the outer sides of the plurality of groups of legs (4); a cleaning assembly (7) for cleaning the measuring instrument (3) is mounted on the outer side of the base (1); the cleaning assembly (7) comprises a motor (9) fixedly mounted on the side wall of the base (1); a rotating shaft (10) is fixedly connected to the output end of the motor (9); a rotating plate (11) is fixedly connected to the outer side of the rotating shaft (10); a first connecting rod (12) is fixedly connected to the side wall of the rotating plate (11); a rotating shaft (11) is fixedly connected to the outer side of the first connecting rod (12); a rotating shaft (11) is fixedly connected to the outer side of the first connecting rod (12); A box (13), wherein an arc-shaped rod (27) is slidably connected inside the rotating box (13), two limit plates (17) are fixedly connected to the outer side of the arc-shaped rod (27), a movable plate (14) is slidably connected to the outer side of the arc-shaped rod (27), a second spring (52) is fixedly connected between the movable plate (14) and the limit plate (17), a first spring (15) is fixedly connected between the movable plate (14) and the rotating box (13), a cleaning plate (16) is fixedly connected to the side wall of the movable plate (14), two fifth connecting rods (26) are fixedly connected to the side wall of the movable plate (14), and two triangular plates (25) are fixedly connected inside the rotating box (13).

2. The on-site measurement equipment for erection of segmental prefabricated bridges according to claim 1 is characterized by: A striking assembly is installed on the outside of the rotating box (13), and the striking assembly includes a sleeve frame (19) fixedly installed on both ends of the arc rod (27), a square rod (18) is slidably connected in the sleeve frame (19), a second connecting rod (20) is fixedly connected to the side wall of the square rod (18), and a rubber soft rod (21) is fixedly connected to the side wall of the second connecting rod (20), and two inclined grooves (28) are symmetrically opened on the outside of the rotating box (13), and a slider (29) is slidably connected in the two inclined grooves (28), and the slider (29) is fixedly connected to the square rod (18).

3. The on-site measurement equipment for erection of segmental prefabricated bridges according to claim 2 is characterized by: A detection assembly (8) is installed on the outside of the base (1), and the detection assembly (8) includes a sleeve (44) rotatably sleeved on the outside of the rotating shaft (10), the outside of the sleeve (44) is fixedly connected to a transmission gear (49), the outside of the transmission gear (49) is meshingly connected to a first rack (50), the lower side of the first rack (50) is fixedly connected to a control frame (33), a plurality of groups of sixth connecting rods (32) are fixedly connected inside the control frame (33), the plurality of the sixth connecting rods (32) are commonly fixedly connected to a control ring (31), a fourth spring (30) is fixedly connected between the control ring (31) and the base (1), a plurality of groups of control grooves (37) are opened on the side wall of the control frame (33), a second connecting plate (36) is slidably connected inside the plurality of the control grooves (37), and the A third spring (42) is fixedly connected between the second connecting plate (36) and the control groove (37); a sensor (38) is fixedly connected to the outer side of the second connecting plate (36); a trapezoidal plate (40) is fixedly connected to the inner side of the second connecting plate (36); a seventh connecting rod (35) is slidably connected to the inside of the control groove (37); a round table (41) is fixedly connected to the outer side of the seventh connecting rod (35); a moving frame (34) is fixedly connected to the outer side of the seventh connecting rod (35); an eighth connecting rod (53) is fixedly connected to the outer side of the moving frame (34); a second rack (51) is fixedly connected to the upper side of the eighth connecting rod (53); an incomplete gear (48) is fixedly connected to the outer side of the sleeve (44); the incomplete gear (48) and the second rack (51) are meshed.

4. The on-site measurement equipment for erection of segmental prefabricated bridges according to claim 3 is characterized by: The sleeve (44) is fixedly connected to a plurality of clamping plates (43) in the inner circumferential direction; the outer side of the rotating shaft (10) is slidably connected to a moving ring (46); the outer side of the moving ring (46) is fixedly connected to a plurality of clamping rods (45) in the outer circumferential direction; the outer side of the moving ring (46) is rotatably connected to a rotating ring (47); the side wall of the rotating ring (47) is fixedly connected to a fourth connecting rod (24); the outer side of the fourth connecting rod (24) is fixedly connected to a first connecting plate (23); the side wall of the first connecting plate (23) is fixedly connected to two third connecting rods (22); and the two third connecting rods (22) are fixedly connected to the sleeve frame (19).

5. The on-site measurement equipment for erection of segmental prefabricated bridges according to claim 3 is characterized by: A rubber strip (39) is fixedly connected to the outer side of the sensor (38).

6. The on-site measurement equipment for erection of segmental prefabricated bridges according to claim 3 is characterized by: The outer sides of the truncated cone (41) and the trapezoidal plate (40) are both smooth.

7. The on-site measurement equipment for erection of segmental prefabricated bridges according to claim 6 is characterized by: The control frame (33) and the moving frame (34) are both regular polygons.

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