CN217559491U

CN217559491U - Fixing device for bridge deflection test

Info

Publication number: CN217559491U
Application number: CN202221531164.3U
Authority: CN
Inventors: 陈军; 吴楠; 吴正凡; 吴兴祥; 刘通; 袁远飞; 夏川; 夏靖
Original assignee: Sichuan Jitong Engineering Testing Co ltd
Current assignee: Sichuan Jitong Engineering Testing Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-10-11
Anticipated expiration: 2032-06-17

Abstract

The utility model relates to a fixing device of bridge amount of deflection test belongs to bridge amount of deflection test technical field, and fixing device of bridge amount of deflection test includes the mount pad, be provided with the mounting that is used for fixed sopwith staff on the mount pad, be provided with the pole setting on the mount pad, be provided with the installing frame in the pole setting, relative both sides are provided with the attenuator in the installing frame, two the one end that the attenuator is close to each other is provided with butt board, two the butt board is used for the both sides butt relative with the sopwith staff top. This application has slope and vibration amplitude when reducing the sopwith staff to a certain extent and receiving wind-force, reduces measuring error's effect.

Description

Fixing device for bridge deflection test

Technical Field

The application relates to the technical field of bridge deflection tests, in particular to a fixing device for a bridge deflection test.

Background

The bridge deflection detection is an important index in a bridge load test, and mainly means that the bridge is subjected to large deformation under the action of load to be measured. At present, a dial indicator measuring method, a level measuring method and a displacement meter are generally adopted for measurement, and the method is widely applied to bridge maintenance, old bridge safety assessment or new bridge acceptance.

The leveling instrument is mainly used for measuring the bridge deflection by erecting a tower ruler between two measuring points of the bridge, measuring the elevations of the two measuring points through the leveling instrument and calculating the height difference of the two measuring points according to the reading on the ruler. In actual operation, a steel plate is usually placed at a measuring point, a tower ruler is bound on a supporting rod of a magnetic gauge stand through an adhesive tape, and the magnetic gauge stand is adsorbed on the steel plate for fixing. However, the tower ruler is easily inclined and vibrated due to the influence of wind force, and the measurement error is large.

SUMMERY OF THE UTILITY MODEL

In order to reduce the slope and the vibration amplitude when the sopwith staff receives wind-force to a certain extent, reduce measuring error, this application provides a fixing device of bridge amount of deflection test.

The application provides a fixing device of bridge amount of deflection test adopts following technical scheme:

the utility model provides a fixing device of bridge amount of deflection test, includes the mount pad, be provided with the mounting that is used for fixed box staff on the mount pad, be provided with the pole setting on the mount pad, be provided with the installing frame in the pole setting, relative both sides are provided with attenuator, two in the installing frame the one end that the attenuator is close to each other is provided with butt board, two the butt board is used for the both sides butt relative with the box staff top.

By adopting the technical scheme, the tower ruler is fixed on the mounting seat through the fixing piece, so that the tower ruler is not easy to incline; put into between the both sides butt joint board with the top of sopwith staff, when the sopwith staff rocks or vibrates that wind blows, the attenuator has buffering and absorbing effect to the vibration of sopwith staff to make the sopwith staff be difficult for vibration by a wide margin, and then reduce measuring error to a certain extent.

Preferably, the cover is equipped with and is used for promoting the gliding damping spring of direction of butt plate orientation keeping away from the attenuator on the attenuator, damping spring's one end sets up on the butt plate, and the other end sets up on the installing frame.

Through adopting above-mentioned technical scheme, damping spring helps promoting the side butt of butt joint board and sopwith staff, and when the top of sopwith staff took place to vibrate because of wind-force, damping spring had the function that resets simultaneously, and the cooperation of damping spring and attenuator cushions the vibration of sopwith staff, reduces the vibration range of sopwith staff, and then helps reducing measuring error.

Preferably, the mounting base is provided with the mounting bracket, the mounting bracket comprises a stand column arranged on the mounting base and a rectangular frame arranged on the top wall of the stand column, the rectangular frame is used for the sliding staff to pass through, the fixing piece comprises abutting bolts arranged on four sides of the rectangular frame in a penetrating mode through threads, and the abutting bolts are used for abutting against the sliding staff.

Through adopting above-mentioned technical scheme, put into the rectangle frame with the sopwith staff, rotate the tight bolt that supports of four sides, make the lateral wall butt that supports tight bolt and sopwith staff, and then fix the sopwith staff, because four support tight bolts and fix from four directions of sopwith staff respectively to make the sopwith staff be difficult for taking place to incline because of wind-force, help reducing measuring error.

Preferably, the movable flat board that is used for with the butt of sopwith staff diapire that is provided with on the mount pad, the flat board is located the rectangle frame below, be provided with the elastic support piece who is used for supporting the flat board between flat board and the mount pad, be provided with the air level on the flat board.

Through adopting above-mentioned technical scheme, with sopwith staff and flat butt, judge whether the sopwith staff inclines through the air level on the flat board to in being fixed to vertical state with the sopwith staff, difficult slope reduces measuring error.

Preferably, the elastic support comprises a support spring, the extension direction of the support spring is arranged along the vertical direction, one end of the support spring is arranged on the flat plate, the other end of the support spring is arranged on the mounting seat, and when the support spring is in a natural state, the flat plate is in a horizontal state.

Through adopting above-mentioned technical scheme, supporting spring's the removal that sets up to the flat board cooperates, and when the sopwith staff slope, the sopwith staff butt is dull and stereotyped, and supporting spring cooperation is dull and stereotyped takes place to slope to judge whether the sopwith staff slopes through the cooperation of air level, help timely adjustment, reduce measuring error.

Preferably, the installing frame slides in the pole setting, the slip direction of installing frame sets up along vertical direction, be provided with the retaining member that is used for making installing frame and pole setting relatively fixed on the installing frame.

Through adopting above-mentioned technical scheme, along pole setting slidable mounting frame, the installing frame drives butt joint board to required position, fixes the installing frame to a take the altitude through the mounting, helps cushioning the vibration that takes place the sopwith staff of co-altitude not, enlarges application scope.

Preferably, be provided with the installation piece on the installing frame, installation piece sliding sleeve establishes in the pole setting, the mounting includes that the screw thread wears to establish the locking bolt on the installation piece, locking bolt is used for with the pole setting butt.

By adopting the technical scheme, the locking bolt is rotated to enable the locking bolt to be abutted against the upright rod, so that the mounting frame and the upright rod are relatively fixed; and the locking bolt is rotated to separate the locking bolt from the upright rod, so that the frame is conveniently installed in a sliding manner.

Preferably, be provided with the guide bar on the mount pad, the length direction of guide bar is on a parallel with the length direction of pole setting, be provided with the guide block on the installing frame, the guide block slip cap is established on the guide bar, be provided with the anchor strut between guide bar and the pole setting, the anchor strut is located the one end that the mount pad was kept away from to guide bar and pole setting.

Through adopting above-mentioned technical scheme, sliding fit between guide block and the guide bar has improved the slip effect of installing frame, and setting up of anchor strut makes guide bar and pole setting be difficult for appearing rocking simultaneously, improves structural stability.

To sum up, this application includes following beneficial technological effect:

the tower ruler is placed in the rectangular frame, the tightening bolts on the four sides are rotated to enable the tightening bolts to be abutted against the side walls of the tower ruler, and then the tower ruler is fixed, and the four tightening bolts are fixed from the four directions of the tower ruler respectively, so that the tower ruler is not prone to being inclined due to wind power; put into the top of sopwith staff between the both sides butt joint board, when the wind blows the sopwith staff and rocks or the vibration, damping spring and attenuator cushion the vibration of sopwith staff to reduce the vibration range of sopwith staff, and then reduce measuring error to a certain extent.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Description of reference numerals: 1. a mounting seat; 2. erecting a rod; 3. installing a frame; 4. abutting against the plate; 5. a damping spring; 6. a mounting frame; 61. a column; 62. a rectangular frame; 7. tightly abutting against the bolt; 8. a flat plate; 9. a level bubble; 10. a support spring; 11. mounting blocks; 12. locking the bolt; 13. a damper; 14. a guide block; 15. a guide bar; 16. fixing the bolt; 17. a threaded barrel; 18. a screw; 19. a reinforcing rod; 20. and (5) reinforcing the tripod.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses fixing device for bridge deflection test. Referring to fig. 1 and 2, the fixing device for the bridge deflection test comprises a mounting base 1, wherein a mounting frame 6 is arranged on the mounting base 1, the mounting frame 6 comprises an upright post 61 fixed on the upper surface of the mounting base 1 and a rectangular frame 62 fixed at the upper end of the upright post 61, the upright post 61 is provided with four corners and is positioned at the four corners of the rectangular frame 62, and in other embodiments, the height of the upright post 61 can be set as required; the rectangular frame 62 is used for supplying the sopwith staff to pass, is provided with the mounting that is used for fixed sopwith staff on the rectangular frame 62, and the mounting includes that the screw thread wears to establish the tight bolt 7 of support on four sides of rectangular frame 62, supports tight bolt 7 and is used for with the sopwith staff butt.

Referring to fig. 1 and 3, fixedly connected with pole setting 2 on mount pad 1, the length direction of pole setting 2 sets up along vertical direction, be provided with installing frame 3 on pole setting 2, the cross section of installing frame 3 is the U-shaped, fixed mounting has adjustable attenuator 13 on the relative both sides inner wall of installing frame 3, the one end fixedly connected with butt plate 4 that two attenuator 13 are close to each other, the length direction of attenuator 13 perpendicular to sopwith staff, two butt plate 4 are used for respectively with the relative both sides butt in sopwith staff top, the movable sleeve is equipped with damping spring 5 that is used for promoting the side butt of butt plate 4 and sopwith staff on attenuator 13, damping spring 5's extending direction is on a parallel with the length direction of attenuator 13, damping spring 5's one end fixed connection is in the one side that the sopwith staff is far away from to butt plate 4, other end fixed connection is on the 3 inner walls of installing frame.

When the sliding staff needs to be fixed, the sliding staff penetrates through the rectangular frame 62 to be in a vertical state, the four abutting bolts 7 are rotated to enable the four abutting bolts 7 to abut against the four side faces of the sliding staff respectively, and therefore the sliding staff is fixed, and the sliding staff is not prone to inclination due to wind power as the abutting bolts 7 abut against the sliding staff from four directions; the top end of the tower ruler is moved into a position between the abutting plates 4 on the two sides, the damping springs 5 push the abutting plates 4 to abut against the side faces of the tower ruler, and when the top end of the tower ruler is blown by wind to shake or vibrate, the damper 13 has certain resistance to the vibration of the tower ruler, so that the buffering is performed, the vibration amplitude of the tower ruler is reduced to a certain extent, and the measurement error is reduced; meanwhile, the damping spring 5 has a reset function and is beneficial to improving the damping effect.

Referring to fig. 1 and 2, a flat plate 8 used for abutting against the bottom wall of the sliding staff is movably arranged on the mounting seat 1, the flat plate 8 is located below the rectangular frame 62, an elastic supporting part used for supporting the flat plate 8 is arranged between the flat plate 8 and the mounting seat 1, the elastic supporting part comprises supporting springs 10, in the embodiment, the supporting springs 10 are arranged in three intervals, the extending direction of the supporting springs 10 is arranged along the vertical direction, one ends of the supporting springs 10 are fixedly connected to one side, away from the rectangular frame 62, of the flat plate 8, the other ends of the supporting springs 10 are fixedly connected to the upper surface of the mounting seat 1, level bubbles 9 are arranged on the flat plate 8, and when the supporting springs 10 are in a natural state, the flat plate 8 is in a horizontal state.

When needs fixed box staff, in with box staff immigration rectangle frame 62, make the bottom and the dull and stereotyped 8 butt of box staff, because supporting spring 10 has certain deformability, support tight bolt 7 and support tight back with the box staff, if the box staff slope, the box staff can butt dull and stereotyped 8, makes dull and stereotyped 8 slope, through the state of observing air level 9, so that judge whether the box staff slopes, so that the workman in time adjusts the state of box staff, in order to reduce measuring error.

Referring to fig. 1 and 3, one side of the mounting frame 3 is fixedly connected with a mounting block 11, the mounting block 11 is slidably sleeved on the vertical rod 2, the cross section of the vertical rod 2 is rectangular, the sliding direction of the mounting block 11 is arranged along the vertical direction, a locking member for fixing the mounting frame 3 and the vertical rod 2 relatively is arranged on the mounting block 11, the locking member comprises a locking bolt 12 which is threaded on the mounting block 11, and the locking bolt 12 is abutted against the vertical rod 2; a guide block 14 is fixed on one side, away from the mounting block 11, of the mounting frame 3, a guide rod 15 is fixedly connected to the mounting base 1, the length direction of the guide rod 15 is parallel to the length direction of the upright rod 2, the guide block 14 is slidably sleeved on the guide rod 15, a fixing bolt 16 used for being abutted against the guide rod 15 penetrates through the guide block 14 in a threaded manner, and the guide block 14 is in sliding fit with the guide rod 15, so that the sliding effect of the mounting frame 3 is improved; fixedly connected with stiffener 19 between guide bar 15 and the pole setting 2, stiffener 19 is located the one end that mount pad 1 was kept away from to guide bar 15 and pole setting 2, and guide bar 15 and pole setting 2 are close to the one end fixedly connected with reinforcement tripod 20 of mount pad 1, and reinforcement tripod 20 is fixed on mount pad 1, and stiffener 19 and reinforcement tripod 20 help making pole setting 2 and guide bar 15 difficult the emergence rock, improve the damping effect.

When needs are fixed to the sopwith staff, rotate locking bolt 12 and fixing bolt 16, make locking bolt 12 and pole setting 2 break away from, fixing bolt 16 and guide bar 15 break away from, according to the height of sopwith staff, remove the installing frame 3 to required height, rotate locking bolt 12 and pole setting 2 butt, rotate fixing bolt 16 and guide bar 15 butt, and then realize the relatively fixed of installing frame 3 and pole setting 2 to in adapt to the sopwith staff of co-altitude not, enlarge application scope.

Referring to fig. 1, the cross section of the mounting base 1 is rectangular, four threaded cylinders 17 are hinged to the bottom wall of the mounting base 1, the four threaded cylinders 17 are located at four corners of the mounting base 1, threaded screws 18 are connected to the threaded cylinders 17 in an internal thread mode, the threaded screws 18 are used for being abutted to the ground, and the length of the threaded cylinders 18 is adjusted by rotating the threaded screws 18 so that the mounting base 1 can be leveled.

The implementation principle of the embodiment of the application is as follows: when the sliding staff needs to be fixed, the locking bolt 12 is rotated to be separated from the upright rod 2, the fixing bolt 16 is rotated to be separated from the guide rod 15, the mounting frame 3 is slid, the distance from the mounting frame 3 to the flat plate 8 is larger than the height of the sliding staff, and then the locking bolt 12 and the fixing bolt 16 are rotated to relatively fix the mounting frame 3; then, the angle of the threaded cylinder 17 and the length of the adjusting screw 18 are rotated, and the mounting seat 1 is adjusted to be in a horizontal state according to the level bubble 9 on the flat plate 8; then, the sliding staff penetrates through the rectangular frame 62, the sliding staff is abutted to the flat plate 8 to be in a vertical state, the four abutting bolts 7 are rotated to enable the abutting bolts 7 to be abutted to the four side faces of the sliding staff, so that the sliding staff is fixed, whether the sliding staff inclines or not is judged according to the air level 9, and if the air level 9 is not in the middle, the sliding staff is adjusted until the flat plate 8 is in a horizontal state; then, rotating the locking bolt 12 to separate from the upright rod 2, rotating the fixing bolt 16 to separate from the guide rod 15, sliding the installation frame 3 to enable the installation frame 3 to move to the top end of the tower ruler, positioning the two abutting plates 4 at two sides of the tower ruler, pushing the abutting plates 4 to abut against the tower ruler by the damping spring 5, then rotating the locking bolt 12 and the fixing bolt 16 to enable the installation frame 3 to be relatively fixed, and tightly abutting the tower ruler from four directions due to the abutting bolts 7, so that the tower ruler is not prone to incline due to wind power; when the top of the tower ruler is blown by wind to shake or vibrate to a certain degree, the damper 13 and the damping spring 5 buffer the vibration of the tower ruler, so that the vibration amplitude of the tower ruler is reduced, and the measurement error is reduced to a certain degree.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a fixing device of bridge amount of deflection test, includes mount pad (1), its characterized in that: be provided with the mounting that is used for fixed sopwith staff on mount pad (1), be provided with pole setting (2) on mount pad (1), be provided with installing frame (3) on pole setting (2), relative both sides are provided with attenuator (13) in installing frame (3), two one end that attenuator (13) are close to each other is provided with butt joint board (4), two butt joint board (4) are used for with the relative both sides butt in sopwith staff top.

2. The fixing device for the bridge deflection test of claim 1, wherein: the damper is characterized in that the damper (13) is sleeved with a shock absorption spring (5) used for pushing the abutting plate (4) to move towards the direction away from the damper (13) in a sliding mode, one end of the shock absorption spring (5) is arranged on the abutting plate (4), and the other end of the shock absorption spring is arranged on the installation frame (3).

3. The fixing device for bridge deflection test of claim 1, wherein: be provided with mounting bracket (6) on mount pad (1), mounting bracket (6) are including setting up stand (61) on mount pad (1) and setting up rectangle frame (62) on stand (61) roof, rectangle frame (62) are used for supplying the sopwith staff to pass, the mounting includes that the screw thread wears to establish support tight bolt (7) on four sides of rectangle frame (62), support tight bolt (7) and be used for with the sopwith staff butt.

4. The fixing device for bridge deflection test of claim 3, wherein: the utility model discloses a take out and put in place the air bubble, including mount pad (1), activity is provided with dull and stereotyped (8) that are used for with the butt of sopwith staff diapire on mount pad (1), dull and stereotyped (8) are located rectangle frame (62) below, be provided with the elastic support who is used for supporting dull and stereotyped (8) between dull and stereotyped (8) and mount pad (1), be provided with air level (9) on dull and stereotyped (8).

5. The fixing device for bridge deflection test of claim 4, wherein: the elastic support comprises a support spring (10), the extension direction of the support spring (10) is arranged along the vertical direction, one end of the support spring (10) is arranged on a flat plate (8), the other end of the support spring is arranged on the mounting seat (1), and when the support spring (10) is in a natural state, the flat plate (8) is in a horizontal state.

6. A fixing device for bridge deflection test according to any one of claims 1-5, wherein: installing frame (3) slide in pole setting (2), the slip direction of installing frame (3) sets up along vertical direction, be provided with the retaining member that is used for making installing frame (3) and pole setting (2) relatively fixed on installing frame (3).

7. The fixing device for the bridge deflection test of claim 6, wherein: be provided with installation piece (11) on installing frame (3), installation piece (11) slip cover is established on pole setting (2), the mounting includes that the screw thread wears to establish locking bolt (12) on installation piece (11), locking bolt (12) are used for with pole setting (2) butt.

8. The fixing device for the bridge deflection test of claim 6, wherein: be provided with guide bar (15) on mount pad (1), the length direction of guide bar (15) is on a parallel with the length direction of pole setting (2), be provided with guide block (14) on installing frame (3), guide block (14) slip cover is established on guide bar (15), be provided with reinforcing rod (19) between guide bar (15) and pole setting (2), reinforcing rod (19) are located guide bar (15) and pole setting (2) and keep away from the one end of mount pad (1).