阅读说明：本技术 一种用于桥梁伸缩缝的测量装置 (Measuring device for bridge expansion joint ) 是由 石英春 赵迪 周志强 许茂村 于 2021-10-14 设计创作，主要内容包括：本发明涉及桥梁伸缩缝技术领域,且公开了一种用于桥梁伸缩缝的测量装置,包括固定板。该用于桥梁伸缩缝的测量装置,通过测量结构和伸缩结构的设置,启动电动液压缸,电动液压缸带动液压杆向下移动,使平衡座从固定筒的内部弹出来,然后启动伸缩缸本体,伸缩缸本体带动伸缩杆本体和推板本体向下移动,使推板本体推动着平衡座的上表面与固定盘的下表面平行,然后当推动着平衡座的同时,使活动柱卡接在第二稳定结构的内部,使第二稳定结构对活动柱进行固定,起到了便于对桥梁与桥梁之间的伸缩缝测量的效果,同时也起到了很好的稳定的效果,使测量的结果更加准确,不会因为测量装置的不稳定和测量装置与桥梁不平衡的原因,而导致测量结果有误差。(The invention relates to the technical field of bridge expansion joints, and discloses a measuring device for a bridge expansion joint, which comprises a fixing plate. The measuring device for the bridge expansion joint starts the electric hydraulic cylinder through the arrangement of the measuring structure and the telescopic structure, the electric hydraulic cylinder drives the hydraulic rod to move downwards, so that the balance seat is popped out from the inside of the fixed cylinder, then the telescopic cylinder body is started, the telescopic cylinder body drives the telescopic rod body and the push plate body to move downwards, so that the push plate body pushes the upper surface of the balance seat to be parallel to the lower surface of the fixed disk, then when the balance seat is pushed, the movable column is clamped in the second stable structure, the second stable structure fixes the movable column, the effect of conveniently measuring the expansion joint between the bridges is achieved, meanwhile, a good and stable effect is achieved, the measuring result is more accurate, and errors of the measuring result caused by instability of the measuring device and unbalance of the measuring device and the bridge are avoided.)

1. A measuring device for bridge expansion joints, includes fixed plate (1), its characterized in that: a fixed structure (2) is arranged at the bottom of the fixed plate (1), a supporting structure (3) is arranged at the bottom of the fixed plate (1), and a telescopic structure (4) is arranged at the top of the fixed plate (1);

fixed knot constructs (2) including solid fixed cylinder (21), the top fixed connection of solid fixed cylinder (21) is in the inside of fixed plate (1), the bottom outer wall fixedly connected with fixed disk (22) of solid fixed cylinder (21), the outer wall swing joint of solid fixed cylinder (21) has sliding sleeve (23), both sides outer wall fixedly connected with connecting block (24) around sliding sleeve (23), the inside fixedly connected with fixed axle (25) of both sides outer wall of sliding sleeve (23), the bottom fixedly connected with telescoping cylinder body (26) of fixed disk (22), the inside swing joint of telescoping cylinder body (26) has telescopic link body (27), the bottom fixedly connected with push pedal body (28) of telescopic link body (27).

2. The apparatus of claim 1, wherein the apparatus further comprises: bearing structure (3) are including first U-shaped seat (31), the top fixed connection of first U-shaped seat (31) is in the bottom of fixed plate (1), the first loose axle of inside fixedly connected with (32) of first U-shaped seat (31), the outer wall swing joint of first loose axle (32) has movable rod (33), the bottom fixedly connected with supporting seat (34) of movable rod (33), the right side outer wall fixedly connected with second U-shaped seat (35) of movable rod (33), the inside fixedly connected with second loose axle of right side (36) of second U-shaped seat (35), the right side of second U-shaped seat (35) is provided with first stable structure (37), the outer wall swing joint of second loose axle (36) has dead lever (38).

3. A measuring device for a bridge expansion joint according to claim 2, wherein: the first stabilizing structure (37) comprises a fixed seat (371), the left side of the fixed seat (371) is fixedly connected to the outer wall of the second U-shaped seat (35), a first groove (372) is formed in the fixed seat (371), a third cavity (373) is formed in the fixed seat (371), a first through hole (374) is formed in the fixed seat (371) close to the right side of the third cavity (373), a compression spring (375) is fixedly connected to the inside of the third cavity (373), a connecting plate (376) is fixedly connected to the inside of the right end of the compression spring (375), a connecting rod (377) is fixedly connected to the right side of the connecting plate (376), an arc-shaped block (378) is fixedly connected to the right end of the connecting rod (377), a rectangular cavity (379) is formed in the fixed seat (371) close to the bottom of the first groove (372), and an electric telescopic cylinder (3710) is fixedly connected to the inside of the rectangular cavity (379), the electric telescopic cylinder (3710) is movably connected with an electric telescopic rod (3711) in the inner part, and the top of the electric telescopic rod (3711) is fixedly connected with an arc-shaped push plate (3712).

4. A measuring device for a bridge expansion joint according to claim 3, wherein: extending structure (4) include electric hydraulic cylinder (41), the bottom fixed connection of electric hydraulic cylinder (41) is at the top of fixed plate (1), the inside swing joint of electric hydraulic cylinder (41) has hydraulic stem (42), the bottom fixedly connected with round pin seat (43) of hydraulic stem (42), the inside swing joint of round pin seat (43) has round pin axle (44), the outer wall fixedly connected with activity post (45) of round pin axle (44), the left side bottom of round pin seat (43) is provided with second stable structure (46), the bottom of activity post (45) is provided with measures structure (47), spacing groove (48) have been seted up to the bottom right side outer wall of hydraulic stem (42), the inside fixedly connected with extension spring (49) of spacing groove (48).

5. The apparatus of claim 4, wherein the apparatus further comprises: the measuring structure (47) comprises a balance seat (471), the top of the balance seat (471) is fixedly connected to the bottom of the movable column (45), a first cavity (472) is formed inside the balance seat (471), a second through hole (473) is formed in the balance seat (471) close to the left side of the first cavity (472), a connecting hole (474) is formed in the balance seat (471) close to the right side of the first cavity (472), a second cavity (475) is formed in the balance seat (471) close to the right side of the connecting hole (474), a measuring rod (472) is movably connected inside the first cavity (472), a top plate (477) is fixedly connected to the left end of the measuring rod (476), a scale line (478) is fixedly connected to the outer wall of the measuring rod (476), and a fixing block (479) is fixedly connected to the outer wall of the measuring rod (476), the right side fixedly connected with spring body (4710) of fixed block (479), the right-hand member top fixedly connected with rack (4711) of measuring stick (476), the outer wall of rack (4711) and the outer wall of intermittent type gear (4712) mesh mutually, the inside fixed connection of intermittent type gear (4712) is at the outer wall of axis of rotation (4713), the rear end fixed connection of axis of rotation (4713) is in the inside of motor (4714), second recess (4715) has been seted up at the top of balanced seat (471).

6. The apparatus of claim 5, wherein the at least one sensor is configured to sense the movement of the bridge expansion joint: the hydraulic rod (42) is arranged inside the fixed cylinder (21), the top of the balance seat (471) is movably connected with the push plate body (28), and the fixed shaft (25) is movably connected inside the right end of the fixed rod (38).

7. The apparatus of claim 6, wherein: the right-hand member swing joint of spring body (4710) is on the inner wall right side of first cavity (472), the front end of axis of rotation (4713) rotates the inside of connecting in second cavity (475), the inside fixedly connected with extension spring (49) of second recess (4715).

8. The apparatus of claim 7, wherein the at least one sensor is configured to sense the movement of the bridge expansion joint: the number of the measuring rods (476) is two, the size of each measuring rod (476) is the same, the outer wall of each measuring rod (476) is sleeved with a spring body (4710), and the rear end of the motor (4714) is fixedly installed on the inner wall of the second cavity (475).

9. The apparatus of claim 8, wherein the at least one sensor is configured to sense the movement of the bridge expansion joint: the inside swing joint of first recess (372) has dead lever (38), the right side of first through-hole (374) is linked together with the left side of first recess (372), the inside of first through-hole (374) is provided with connecting rod (377), compression spring (375) have been cup jointed to the left end outer wall of connecting rod (377).

10. The apparatus of claim 9, wherein the at least one sensor is configured to sense the movement of the bridge expansion joint: the number of the fixing rods (38) is two, the size of each fixing rod (38) is the same, the size of the first stabilizing structure (37) is the same as that of the second stabilizing structure (46), and an arc-shaped push plate (3712) is arranged inside the first groove (372).

Technical Field

The invention relates to the technical field of bridge expansion joints, in particular to a measuring device for a bridge expansion joint.

Background

The bridge has the advantages of low cost, wide application range and the like, and can be widely applied to the fields of highways, railways, sea-crossing bridges and the like. In bridge construction, in order to meet the deformation requirement of the bridge under the action of thermal expansion and cold contraction or other external stresses and avoid the damage of a bridge deck caused by mutual extrusion between beams, expansion joints are usually reserved between every two adjacent bridges, namely, the distance between the two bridges is required to be separated; in the conventional measuring device, because the measuring result has errors due to the instability of the measuring device and the non-parallel state between the measuring device and the bridge, the measuring device for the bridge expansion joint is provided to solve the problems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the measuring device for the bridge expansion joint, which has the advantages of stable measuring device, more accurate measuring result and the like, and solves the problems of instability of the measuring device and error of the measuring result.

The technical scheme adopted by the invention for solving the technical problems is as follows: a measuring device for a bridge expansion joint comprises a fixed plate, wherein a fixed structure is arranged at the bottom of the fixed plate, a supporting structure is arranged at the bottom of the fixed plate, and a telescopic structure is arranged at the top of the fixed plate;

the fixed knot constructs including the fixed cylinder, the top fixed connection of fixed cylinder is in the inside of fixed plate, the bottom outer wall fixedly connected with fixed disk of fixed cylinder, the outer wall swing joint of fixed cylinder has the sliding sleeve, both sides outer wall fixedly connected with connecting block around the sliding sleeve, the inside fixedly connected with fixed axle of both sides outer wall of sliding sleeve, the bottom fixedly connected with telescoping cylinder body of fixed disk, the inside swing joint of telescoping cylinder body has the telescopic link body, the bottom fixedly connected with push pedal body of telescopic link body.

By adopting the technical scheme, the measuring result is more accurate, and the measuring result has no error due to instability of the measuring device and unbalance of the measuring device and the bridge.

Further, bearing structure includes first U-shaped seat, the top fixed connection of first U-shaped seat is in the bottom of fixed plate, the first loose axle of the inside fixedly connected with of first U-shaped seat, the outer wall swing joint of first loose axle has the movable rod, the bottom fixedly connected with supporting seat of movable rod, the right side outer wall fixedly connected with second U-shaped seat of movable rod, the inside fixedly connected with second loose axle in right side of second U-shaped seat, the right side of second U-shaped seat is provided with first stable structure, the outer wall swing joint of second loose axle has the dead lever.

Through adopting above-mentioned technical scheme, movable rod and supporting seat have played the effect of supporting the fixed plate, need not to need the effect that the staff supported again.

Further, first stable knot constructs including the fixing base, the left side fixed connection of fixing base is at the outer wall of second U-shaped seat, first recess has been seted up to the inside of fixing base, the third cavity has been seted up to the inside of fixing base, the inside of fixing base is close to the right side of third cavity and has been seted up first through-hole, the inside fixedly connected with compression spring of third cavity, the inside fixedly connected with connecting plate of compression spring's right-hand member, the right side fixedly connected with connecting rod of connecting plate, the right-hand member fixedly connected with arc piece of connecting rod, the inside of fixing base is close to the bottom of first recess and has been seted up the rectangular chamber, the inside fixedly connected with electric telescopic cylinder in rectangular chamber, electric telescopic cylinder's inside swing joint has electric telescopic handle, electric telescopic handle's top fixedly connected with arc push pedal.

Through adopting above-mentioned technical scheme, pulling two movable rods and removing to the both sides of fixed plate, make the sliding sleeve of activity section of thick bamboo outer wall remove downwards, drive the dead lever right-hand member when removing and remove downwards, until becoming the splayed between two dead levers, then through pressing down the dead lever, make the dead lever joint in the inside of fixing base, make two arc pieces fix the dead lever, played fine stable effect, also played the effect of support simultaneously.

Further, extending structure includes electric hydraulic cylinder, electric hydraulic cylinder's bottom fixed connection is at the top of fixed plate, electric hydraulic cylinder's inside swing joint has the hydraulic stem, the bottom fixedly connected with key seat of hydraulic stem, the inside swing joint of key seat has the round pin axle, the outer wall fixedly connected with activity post of round pin axle, the left side bottom of key seat is provided with the second stable structure, the bottom of activity post is provided with measures the structure, the spacing groove has been seted up to the bottom right side outer wall of hydraulic stem, the inside fixedly connected with extension spring of spacing groove.

Through adopting above-mentioned technical scheme, when needs carry out the measurement, start electric hydraulic cylinder, electric hydraulic cylinder drives the hydraulic stem downstream, make the balance seat pop out from the inside of fixed cylinder, then start the telescoping cylinder body, the telescoping cylinder body drives telescopic link body and push pedal body downstream, make the push pedal body promote the upper surface of balance seat and the lower surface of fixed disk are parallel, then when promoting the balance seat, make the movable column joint in the inside of second stable structure, make the second stable structure fix the movable column, the expansion joint measuring effect between bridge and the bridge of being convenient for has been played, fine stable effect has also been played simultaneously, make measuring result more accurate, can not be because of measuring device's unstability and measuring device and the unbalanced reason of bridge, and lead to the measuring result to have the error.

Further, the measuring structure comprises a balance seat, the top of the balance seat is fixedly connected to the bottom of the movable column, a first cavity is formed in the balance seat, a second through hole is formed in the balance seat close to the left side of the first cavity, a connecting hole is formed in the balance seat close to the right side of the first cavity, a second cavity is formed in the balance seat close to the right side of the connecting hole, a measuring rod is movably connected in the first cavity, the left end of the measuring rod is fixedly connected with a top plate, the outer wall of the measuring rod is fixedly connected with scale marks, the outer wall of the measuring rod is fixedly connected with a fixed block, the right side of the fixed block is fixedly connected with a spring body, the top of the right end of the measuring rod is fixedly connected with a rack, the outer wall of the rack is meshed with the outer wall of the intermittent gear, and the interior of the intermittent gear is fixedly connected to the outer wall of the rotating shaft, the rear end fixed connection of axis of rotation is in the inside of motor, the second recess has been seted up at the top of balanced seat.

Through adopting above-mentioned technical scheme, the starter motor, the motor drives intermittent gear and rotates, make intermittent gear drive rack remove to the left side, make the measuring stick remove to the left end, the right side outer wall of bridge is withstood to measuring stick left end fixed connection's roof, then it is what to the numerical value of balanced seat left end outer wall through the scale mark of observing the measuring stick outer wall, then in addition balanced seat's length, and the scale mark of the measuring stick outer wall on the right adds together to the numerical value of balanced seat right-hand member outer wall, just obtain the distance at expansion joint between bridge and the bridge, therefore, the steam generator is simple in operation, it is also more convenient to use.

Furthermore, a hydraulic rod is arranged inside the fixed cylinder, the top of the balance seat is movably connected with a push plate body, and a fixed shaft is movably connected inside the right end of the fixed rod.

Through adopting above-mentioned technical scheme, start electric hydraulic cylinder, electric hydraulic cylinder drives the hydraulic stem, makes the hydraulic stem drive balanced seat and removes to the inside of solid fixed cylinder, has played the effect of being convenient for more accomodate.

Further, the right end swing joint of spring body is on the inner wall right side of first cavity, the front end of axis of rotation rotates the inside of connecting at the second cavity, the inside fixedly connected with extension spring of second recess.

Through adopting above-mentioned technical scheme, the spring body passes through elastic effect, and messenger's measuring stick that can be better moves to the both sides of balanced seat and measures.

Furthermore, the number of the measuring rods is two, the size of each measuring rod is the same, the outer wall of each measuring rod is sleeved with the spring body, and the rear end of the motor is fixedly installed on the inner wall of the second cavity.

Through adopting above-mentioned technical scheme, two measuring sticks have played the effect of being convenient for measure the expansion joint between bridge and the bridge.

Further, the inside swing joint of first recess has the dead lever, the right side of first through-hole is linked together with the left side of first recess, the inside of first through-hole is provided with the connecting rod, compression spring has been cup jointed to the left end outer wall of connecting rod.

Through adopting above-mentioned technical scheme, compression spring's elasticity makes two arc pieces carry out the effect fixed to the dead lever.

Furthermore, the quantity of dead lever has two, and the size of every dead lever is the same, the size of first stable structure is the same with the size of second stable structure, the inside of first recess is provided with the arc push pedal.

Through adopting above-mentioned technical scheme, first stable structure and second stable structure have played fine stable effect, have also played the effect of support simultaneously.

The invention has the beneficial effects that:

1. the measuring device for the bridge expansion joint starts the electric hydraulic cylinder through the arrangement of the measuring structure and the telescopic structure, the electric hydraulic cylinder drives the hydraulic rod to move downwards, so that the balance seat is popped out from the inside of the fixed cylinder, then the telescopic cylinder body is started, the telescopic cylinder body drives the telescopic rod body and the push plate body to move downwards, so that the push plate body pushes the upper surface of the balance seat to be parallel to the lower surface of the fixed disk, then when the balance seat is pushed, the movable column is clamped in the second stable structure, the second stable structure fixes the movable column, the effect of conveniently measuring the expansion joint between the bridges is achieved, meanwhile, a good and stable effect is achieved, the measuring result is more accurate, and errors of the measuring result caused by instability of the measuring device and unbalance of the measuring device and the bridge are avoided.

2. The measuring device for the bridge expansion joint is characterized in that the balance seat and the measuring rod are arranged, the motor is started, the motor drives the intermittent gear to rotate, the intermittent gear drives the rack to move towards the left side, the measuring rod moves towards the left end until the top plate fixedly connected with the left end of the measuring rod abuts against the outer wall of the right side of the bridge, then the numerical value from the scale mark of the outer wall of the measuring rod to the outer wall of the left end of the balance seat is observed, the length of the balance seat is added, the numerical value from the scale mark of the outer wall of the right measuring rod to the outer wall of the right end of the balance seat is added together, the distance between the bridge and the bridge expansion joint is obtained, the operation is simple, the use is more convenient, the sliding sleeve of the outer wall of the movable cylinder moves downwards by pulling the two movable rods to move towards the two sides of the fixed plates, the right end of the fixed rod is driven to move downwards while moving, and the splayed shape is formed between the two fixed rods, then through pressing down the dead lever, make the dead lever joint in the inside of fixing base, make two arc pieces fix the dead lever, played fine stable effect, also played the effect of support simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of a first stable configuration of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2;

fig. 5 is a schematic view of the telescopic structure of the present invention.

Description of reference numerals: 1. a fixing plate; 2. a fixed structure; 21. a fixed cylinder; 22. fixing the disc; 23. a sliding sleeve; 24. connecting blocks; 25. a fixed shaft; 26. a telescopic cylinder body; 27. the telescopic rod body; 28. a push plate body; 3. a support structure; 31. a first U-shaped seat; 32. a first movable shaft; 33. a movable rod; 34. a supporting seat; 35. a second U-shaped seat; 36. a second movable shaft; 37. a first stabilizing structure; 371. a fixed seat; 372. a first groove; 373. a third cavity; 374. a first through hole; 375. a compression spring; 376. a connecting plate; 377. a connecting rod; 378. an arc-shaped block; 379. a rectangular cavity; 3710. an electric telescopic cylinder; 3711. an electric telescopic rod; 3712. an arc-shaped push plate; 38. fixing the rod; 4. a telescopic structure; 41. an electric hydraulic cylinder; 42. a hydraulic lever; 43. a pin boss; 44. a pin shaft; 45. a movable post; 46. a second stabilizing structure; 47. a measurement structure; 471. a balance seat; 472. a first cavity; 473. a second through hole; 474. connecting holes; 475. a second cavity; 476. a measuring rod; 477. a top plate; 478. scale lines; 479. a fixed block; 4710. a spring body; 4711. a rack; 4712. an intermittent gear; 4713. a rotating shaft; 4714. a motor; 4715. a second groove; 48. a limiting groove; 49. a tension spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-5, a measuring device for a bridge expansion joint includes a fixing plate, a fixing structure is disposed at the bottom of the fixing plate, a supporting structure is disposed at the bottom of the fixing plate, and an expansion structure is disposed at the top of the fixing plate;

the fixed knot constructs including a fixed cylinder, the top fixed connection of a fixed cylinder is in the inside of fixed plate, the bottom outer wall fixedly connected with fixed disk of a fixed cylinder, the outer wall swing joint of a fixed cylinder has the sliding sleeve, both sides outer wall fixedly connected with connecting block around the sliding sleeve, the inside fixedly connected with fixed axle of both sides outer wall of sliding sleeve, the bottom fixedly connected with telescoping cylinder body of fixed disk, the inside swing joint of telescoping cylinder body has the telescopic link body, the bottom fixedly connected with push pedal body of telescopic link body.

By adopting the technical scheme, the measuring result is more accurate, and the measuring result has no error due to instability of the measuring device and unbalance of the measuring device and the bridge.

The supporting structure comprises a first U-shaped seat, the top of the first U-shaped seat is fixedly connected with the bottom of the fixing plate, a first movable shaft is fixedly connected with the inside of the first U-shaped seat, the outer wall of the first movable shaft is movably connected with a movable rod, a supporting seat is fixedly connected with the bottom of the movable rod, a second U-shaped seat is fixedly connected with the outer wall of the right side of the movable rod, a second movable shaft is fixedly connected with the inside of the right side of the second U-shaped seat, a first stabilizing structure is arranged on the right side of the second U-shaped seat, and a fixing rod is movably connected with the outer wall of the second movable shaft.

Through adopting above-mentioned technical scheme, movable rod and supporting seat have played the effect of supporting the fixed plate, need not to need the effect that the staff supported again.

First stable structure includes the fixing base, the outer wall of left side fixed connection at the second U-shaped seat of fixing base, first recess has been seted up to the inside of fixing base, the third cavity has been seted up to the inside of fixing base, the inside of fixing base is close to the right side of third cavity and has been seted up first through-hole, the inside fixedly connected with compression spring of third cavity, the inside fixedly connected with connecting plate of compression spring's right-hand member, the right side fixedly connected with connecting rod of connecting plate, the right-hand member fixedly connected with arc piece of connecting rod, the rectangular cavity has been seted up to the inside bottom that is close to first recess of fixing base, the inside fixedly connected with electric telescopic cylinder in rectangular cavity, electric telescopic cylinder's inside swing joint has electric telescopic handle, electric telescopic handle's top fixedly connected with arc push pedal.

Through adopting above-mentioned technical scheme, pulling two movable rods and removing to the both sides of fixed plate, make the sliding sleeve of activity section of thick bamboo outer wall remove downwards, drive the dead lever right-hand member when removing and remove downwards, until becoming the splayed between two dead levers, then through pressing down the dead lever, make the dead lever joint in the inside of fixing base, make two arc pieces fix the dead lever, played fine stable effect, also played the effect of support simultaneously.

The extending structure comprises an electric hydraulic cylinder, the bottom of the electric hydraulic cylinder is fixedly connected to the top of the fixing plate, the inside of the electric hydraulic cylinder is movably connected with a hydraulic rod, the bottom of the hydraulic rod is fixedly connected with a pin boss, the inside of the pin boss is movably connected with a pin shaft, the outer wall of the pin shaft is fixedly connected with a movable column, the bottom of the left side of the pin boss is provided with a second stable structure, the bottom of the movable column is provided with a measuring structure, the outer wall of the right side of the bottom of the hydraulic rod is provided with a limiting groove, and the inner part of the limiting groove is fixedly connected with a tension spring.

Through adopting above-mentioned technical scheme, when needs carry out the measurement, start electric hydraulic cylinder, electric hydraulic cylinder drives the hydraulic stem downstream, make the balance seat pop out from the inside of fixed cylinder, then start the telescoping cylinder body, the telescoping cylinder body drives telescopic link body and push pedal body downstream, make the push pedal body promote the upper surface of balance seat and the lower surface of fixed disk are parallel, then when promoting the balance seat, make the movable column joint in the inside of second stable structure, make the second stable structure fix the movable column, the expansion joint measuring effect between bridge and the bridge of being convenient for has been played, fine stable effect has also been played simultaneously, make measuring result more accurate, can not be because of measuring device's unstability and measuring device and the unbalanced reason of bridge, and lead to the measuring result to have the error.

The measuring structure comprises a balance seat, the top fixed connection of the balance seat is in the bottom of the movable column, a first cavity is arranged in the balance seat, a second through hole is arranged on the left side of the balance seat close to the first cavity, a connecting hole is arranged on the right side of the balance seat close to the first cavity, a second cavity is arranged on the right side of the balance seat close to the connecting hole, the inside movable connection of the first cavity is provided with a measuring rod, the left end of the measuring rod is fixedly connected with a top plate, the outer wall of the measuring rod is fixedly connected with scale marks, the outer wall of the measuring rod is fixedly connected with a fixed block, the right side of the fixed block is fixedly connected with a spring body, the right end of the measuring rod is fixedly connected with a rack, the outer wall of the rack is meshed with the outer wall of the intermittent gear, the inside fixed connection of the intermittent gear is arranged on the outer wall of the rotating shaft, the rear end of the rotating shaft is fixedly connected with the inside of the motor, and a second groove is arranged at the top of the balance seat.

Through adopting above-mentioned technical scheme, the starter motor, the motor drives intermittent gear and rotates, make intermittent gear drive rack remove to the left side, make the measuring stick remove to the left end, the right side outer wall of bridge is withstood to measuring stick left end fixed connection's roof, then it is what to the numerical value of balanced seat left end outer wall through the scale mark of observing the measuring stick outer wall, then in addition balanced seat's length, and the scale mark of the measuring stick outer wall on the right adds together to the numerical value of balanced seat right-hand member outer wall, just obtain the distance at expansion joint between bridge and the bridge, therefore, the steam generator is simple in operation, it is also more convenient to use.

The inside of a fixed cylinder is provided with a hydraulic rod, the top of the balance seat is movably connected with a push plate body, and the inside of the right end of the fixed rod is movably connected with a fixed shaft.

Through adopting above-mentioned technical scheme, start electric hydraulic cylinder, electric hydraulic cylinder drives the hydraulic stem, makes the hydraulic stem drive balanced seat and removes to the inside of solid fixed cylinder, has played the effect of being convenient for more accomodate.

The right-hand member swing joint of spring body is on the inner wall right side of first cavity, and the front end of axis of rotation rotates the inside of connecting at the second cavity, and the inside fixedly connected with extension spring of second recess.

Through adopting above-mentioned technical scheme, the spring body passes through elastic effect, and messenger's measuring stick that can be better moves to the both sides of balanced seat and measures.

The quantity of measuring stick has two, and the size of every measuring stick is the same, and the outer wall of measuring stick has cup jointed the spring body, and the rear end fixed mounting of motor is at the inner wall of second cavity.

Through adopting above-mentioned technical scheme, two measuring sticks have played the effect of being convenient for measure the expansion joint between bridge and the bridge.

The inside swing joint of first recess has the dead lever, and the right side of first through-hole is linked together with the left side of first recess, and the inside of first through-hole is provided with the connecting rod, and compression spring has been cup jointed to the left end outer wall of connecting rod.

Through adopting above-mentioned technical scheme, compression spring's elasticity makes two arc pieces carry out the effect fixed to the dead lever.

The quantity of dead lever has two, and the size of every dead lever is the same, and the size of first stable structure is the same with the size of second stable structure, and the inside of first recess is provided with the arc push pedal.

Through adopting above-mentioned technical scheme, first stable structure and second stable structure have played fine stable effect, have also played the effect of support simultaneously.

When the device is used, through the arrangement of the measuring structure and the telescopic structure, when the measurement is needed, the electric hydraulic cylinder is started, the electric hydraulic cylinder drives the hydraulic rod to move downwards, the balance seat is made to be ejected out of the inside of the fixed cylinder, then the telescopic cylinder body is started, the telescopic cylinder body drives the telescopic rod body and the push plate body to move downwards, the push plate body drives the upper surface of the balance seat to be parallel to the lower surface of the fixed disk, then the movable column is clamped in the second stable structure while the balance seat is pushed, the second stable structure fixes the movable column, the effect of conveniently measuring the expansion joint between the bridge and the bridge is achieved, meanwhile, a good stable effect is achieved, the measuring result is more accurate, and errors of the measuring result caused by the instability of the measuring device and the unbalance of the measuring device and the bridge can be avoided, through the arrangement of the balance seat and the measuring rod, the motor drives the intermittent gear to rotate by starting the motor, so that the intermittent gear drives the rack to move towards the left side, the measuring rod moves towards the left end until a top plate fixedly connected with the left end of the measuring rod abuts against the outer wall of the right side of the bridge, then the distance between the bridge and the expansion joint between the bridge is obtained by observing the numerical value from the scale mark of the outer wall of the measuring rod to the outer wall of the left end of the balance seat, then the length of the balance seat is added, and the numerical value from the scale mark of the outer wall of the right measuring rod to the outer wall of the right end of the balance seat are added together, so that the distance between the bridge and the expansion joint between the bridge is obtained, the operation is simple, the use is more convenient, the sliding sleeve of the outer wall of the movable cylinder is moved downwards by pulling the two movable rods to move towards the two sides of the fixed plates, the right end of the fixed rod is driven to move downwards while moving, until the fixed rod becomes splayed between the two fixed rods, then the fixed rod is clamped in the fixed seat by pressing the fixed rod, make two arc pieces fix the dead lever, played fine stable effect, also played the effect of support simultaneously.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.