CN216247487U

CN216247487U - Manage and use concrete resiliometer

Info

Publication number: CN216247487U
Application number: CN202122823105.5U
Authority: CN
Inventors: 唐迪元; 王龄君; 梅浩
Original assignee: Anhui Hongjian Engineering Project Management Co ltd
Current assignee: Anhui Hongjian Engineering Project Management Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-04-08
Anticipated expiration: 2031-11-17

Abstract

The application discloses a concrete resiliometer for supervision, which relates to the technical field of concrete detection, in particular to a concrete resiliometer for supervision, and comprises a base plate, a detection plate arranged above the base plate and a resiliometer body arranged on the side surface of the detection plate, wherein the top surface of the base plate is provided with a lifting mechanism for driving the detection plate to lift, the side surface of the detection plate is provided with a limiting mechanism for driving the resiliometer body to vertically fall on the surface of a detected wall body, the limiting mechanism comprises a telescopic sleeve vertically fixed on the side surface of the detection plate, a telescopic straight rod penetrating through the telescopic sleeve and a limiting straight plate fixed on the end part of the telescopic straight rod, the resiliometer body is fixed on the side surface of the limiting straight plate, thereby improving the strength detection of manual operation, the axis of the resiliometer is difficult to be perpendicular to the concrete testing surface all the time, and then the measuring result is caused to generate a large human error.

Description

Manage and use concrete resiliometer

Technical Field

The application relates to the technical field of concrete detection, in particular to a supervision concrete rebound instrument.

Background

The concrete resiliometer is a detection instrument suitable for detecting the strength of various building members, various bridges and various concrete members. For a typical component test, the number of zones should not be less than 10 and each zone should read 16 rebound values. In the whole process of operating the concrete rebound apparatus, workers need to pay attention to the posture of holding the concrete rebound apparatus, and the axis of the rebound apparatus is always vertical to the concrete test surface.

The utility model discloses a chinese utility model patent of No. CN212008184U discloses a concrete resiliometer as authorizing, including resiliometer body and impact rod, the impact rod is inserted and is located this internal, and the surface of resiliometer body is provided with the control button of control impact rod, the integrative rigid coupling of surface of resiliometer body has the locating bar, the locating bar is divided and is established in the control button both sides, the draw-in groove has been seted up on the locating bar, the draw-in groove sets up along the extending direction of locating bar, be provided with the protective housing on the locating bar, the bottom of protective housing is inserted and is located in the draw-in groove and slide with the draw-in groove and be connected.

To foretell correlation technique, the inventor thinks that this concrete resiliometer pegs graft with the bottom of protective housing and the draw-in groove of location strip for the protection sets up in the control button side and forms the guard action to control button, effectively prevents to miss and bump control button and pop out the impact rod from resiliometer body is inside, but this concrete resiliometer carries out intensity at manual operation and detects time measuring, is difficult to make the axis and the concrete test surface of resiliometer perpendicular all the time, and then leads to the measuring result to produce great human error.

SUMMERY OF THE UTILITY MODEL

When carrying out intensity detection in order to improve manual operation, be difficult to make the axis and the concrete test face of resiliometer perpendicular all the time, and then lead to the measuring result to produce the problem of great human error, this application provides a concrete resiliometer for prison reason.

The application provides a concrete resiliometer for supervision adopts following technical scheme:

the utility model provides a concrete resiliometer for prison reason, includes the bed plate, install in the pick-up plate of bed plate top and install in the resiliometer body of pick-up plate side, the bed plate top surface is provided with and is used for the drive the elevating system that the pick-up plate goes up and down, the pick-up plate side is provided with and is used for the drive the perpendicular stop gear who falls at detected wall body surface of resiliometer body, stop gear is including the vertical fixation in the telescope tube of pick-up plate side, wear to locate telescopic straight pole in the telescope tube and be fixed in the spacing board that straightens of telescopic straight pole tip, the resiliometer body is fixed in spacing straight board side.

Through adopting above-mentioned technical scheme, elevating system drives the pick-up plate and removes to the suitable position back that detects the wall body, and the resiliometer body slides along telescope tube length direction, supports to press in detecting the wall body surface until resiliometer body tip, can guarantee like this that the resiliometer body can drop perpendicularly and detect the wall, has improved manual operation and has carried out intensity and has detected time measuring, and the axis that is difficult to make the resiliometer is perpendicular all the time with the concrete test face, and then leads to the measuring result to produce the problem of great human error.

Optionally, the lifting mechanism includes a lifting sleeve fixed on the top surface of the base plate, a lifting straight rod penetrating through the lifting sleeve, a supporting straight plate fixed at the end of the lifting straight rod, an adjusting assembly arranged on the top surface of the supporting straight plate and used for adjusting the height of the detection plate, and a driving assembly arranged in the lifting sleeve and used for driving the lifting straight rod to slide.

Through adopting above-mentioned technical scheme, drive assembly drives the lift straight-bar and slides along lift sleeve length direction, and the lift straight-bar drives and supports the straight board and slide up along vertical, moves to waiting to detect the region until the resiliometer body to this realizes that this concrete resiliometer is applicable to the not detection position of co-altitude.

Optionally, the driving assembly includes a limiting straight plate fixed on the inner circumferential surface of the lifting sleeve, a lead screw rotatably mounted on the side surface of the limiting straight plate, a worm wheel coaxially fixed on the end portion of the lead screw, and a worm rotatably mounted in the lifting sleeve, the worm wheel is engaged with the worm, the lead screw is in threaded connection with the lifting straight rod, and the end portion of the lead screw penetrates through the lifting sleeve and is fixed with a rotating handle.

Through adopting above-mentioned technical scheme, the drive turning handle rotates, and the turning handle drives the worm and rotates, and the worm drives the worm wheel and rotates, and the worm wheel drives the lead screw and rotates, and the lead screw drives the lift straight-bar and slides along lift sleeve length direction to this realizes that the turning handle drives the lift straight-bar and goes up and down to move.

Optionally, the adjusting part including rotate install in support a plurality of screw thread straight-bar, the threaded connection of straight-bar top surface in the straight board of going up and down of screw thread week side and set up in go up and down straight board side be used for the direction guiding component that the resiliometer body provided the direction, screw thread straight-bar tip is provided with and is used for driving a plurality of the synchronous pivoted lazytongs of screw thread straight-bar.

By adopting the technical scheme, the threaded straight rod is driven to rotate, and the threaded straight rod drives the lifting straight plate to slide along the length direction of the threaded straight rod; the detection plate is driven to move, and then the detection plate can slide along the length direction of the sliding rod.

Optionally, a lifting through groove is formed in the side face of the lifting straight plate along the length direction of the lifting straight plate, the guide part comprises a plurality of sliding rods arranged along the length direction of the lifting straight plate, the end parts of the sliding rods are fixed on the inner side wall of the lifting through groove, and the sliding rods penetrate through the detection plate, namely the detection plate slides along the length direction of the sliding rods.

By adopting the technical scheme, the slide bar drives the detection plate to slide along the length direction of the slide bar, so that the data of the four detection points at the same height can be detected, and the accuracy of the detection data is improved.

Optionally, a driving box is installed at the end of the threaded straight rod, the threaded straight rod is rotatably installed on the side surface of the driving box, the synchronizing mechanism comprises a chain wheel coaxially fixed at the end of the threaded straight rod and a chain sleeved on the outer peripheral surface of the chain wheel, and a locking mechanism used for controlling the rotation of the threaded straight rod is arranged in the driving box.

Through adopting above-mentioned technical scheme, the chain drives a plurality of chain synchronous rotation, and the sprocket drives the synchronous rotation of screw thread straight-bar to this realizes a plurality of screw thread straight-bar synchronous rotation. The lifting straight plate can slide along the length direction of the threaded straight rod, and the lifting straight plate is kept in a horizontal state.

Optionally, the locking mechanism comprises a first bevel gear coaxially fixed at the end of the threaded straight rod, a driving straight rod rotatably mounted on the side surface of the driving box, a second bevel gear fixed at the end of the driving straight rod close to the bevel gear, a first meshing ring fixed at the side surface of the driving box, a second meshing ring arranged on the periphery of the driving straight rod in a penetrating manner, a pressing circular plate fixed at the end of the threaded straight rod far away from the second bevel gear, and a telescopic spring fixed at the pressing circular plate close to the two side surfaces of the bevel gear, the extension spring is abutted against the side face, far away from the bevel gear II, of the meshing circular ring II, the bevel gear I is meshed with the bevel gear II, the side surfaces of the first occlusion ring and the second occlusion ring are both provided with occlusion teeth which are occluded with each other, and a control mechanism for controlling the rotation of the driving straight rod is arranged on the inner peripheral surface of the second meshing ring.

By adopting the technical scheme, when the threaded straight rod needs to be rotated, the first meshing ring and the second meshing ring are separated from each other, then the second meshing ring is rotated, the second meshing ring can drive the straight rod to rotate by the control mechanism, the driving straight rod drives the second bevel gear to rotate, the first bevel gear is driven by the second bevel gear to rotate, the threaded straight rod is driven by the bevel gear to rotate, and the two threaded straight rods realize synchronous motion through the action of the chain wheel and the chain. When the threaded straight rod does not need to be rotated, the second meshing ring is released, the second meshing ring slides along the length direction of the driving straight rod under the reset action of the locking spring until the second meshing ring is meshed with the first meshing ring, and the second meshing ring does not rotate any more, so that the threaded straight rod does not rotate any more.

Optionally, the driving straight rod is provided with a limiting groove penetrating through the outer peripheral surface of the driving straight rod along the length direction of the driving straight rod, the control mechanism comprises a limiting projection fixed on the inner peripheral surface of the second occlusion ring, and the limiting projection is located in the limiting groove.

Through adopting above-mentioned technical scheme, spacing lug slides along drive straight-bar length direction through the spacing groove to this realizes that interlock ring two when drive straight-bar week side slides along drive straight-bar length direction, the interlock ring can drive the rotation of drive straight-bar.

In summary, the present application includes at least one of the following beneficial technical effects:

1. elevating system drives the pick-up plate and removes to the suitable position of detecting the wall body after, the resiliometer body slides along telescopic sleeve length direction, supports to press in detecting the wall body surface until resiliometer body tip like this, can guarantee that the resiliometer falls perpendicularly and detects the wall, has improved manual operation and has carried out intensity detection time measuring, is difficult to make the axis and the concrete test surface of resiliometer perpendicular all the time, and then leads to the measuring result to produce great human error's problem.

2. The threaded straight rod is driven to rotate, and the threaded straight rod drives the lifting straight plate to slide along the length direction of the threaded straight rod; the detection plate is driven to move, and then the detection plate can slide along the length direction of the sliding rod.

3. When the threaded straight rods need to be rotated, the first meshing ring and the second meshing ring are separated from each other, then the second meshing ring is rotated, the second meshing ring can drive the straight rods to rotate through the control mechanism, the driving straight rods drive the second bevel gears to rotate, the second bevel gears drive the first bevel gears to rotate, the bevel gears drive the threaded straight rods to rotate, and the two threaded straight rods realize synchronous motion through the action of the chain wheels and the chains. When the threaded straight rod does not need to be rotated, the second meshing ring is released, the second meshing ring slides along the length direction of the driving straight rod under the reset action of the locking spring until the second meshing ring is meshed with the first meshing ring, and the second meshing ring does not rotate any more, so that the threaded straight rod does not rotate any more.

Drawings

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

Fig. 2 is a schematic cross-sectional view of the lifting sleeve and the lifting straight rod in the embodiment of the present application.

Fig. 3 is a sectional view of the driving case and an exploded view of the rotating ring iii in the embodiment of the present application.

Fig. 4 is a schematic diagram of a partial explosion of an embodiment of the present application.

Description of reference numerals: 11. a base plate; 12. a lifting sleeve; 13. a lifting straight rod; 14. a first threaded through hole; 15. a first through hole; 16. a second through hole; 17. defining a straight plate; 18. a worm; 19. a handle is rotated; 20. rotating the first ring; 21. rotating the second circular ring; 22. a worm gear; 23. a lead screw; 24. a support straight plate; 25. a third through hole; 26. rotating the ring III; 27. a drive box; 28. a cavity; 29. a straight through hole IV; 30. rotating the ring IV; 31. a sprocket; 32. a chain; 33. a first bevel gear; 34. a second bevel gear; 35. a driving straight rod; 36. meshing the first ring; 37. a second occlusion ring; 38. engaging teeth; 39. a locking spring; 40. pressing the circular plate; 41. lifting the straight plate; 42. a second threaded through hole; 43. a lifting through groove; 44. a slide bar; 45. detecting a plate; 46. detecting the through groove; 47. a fifth through hole; 48. a telescopic sleeve; 49. a tension spring; 50. a straight through hole six; 51. a telescopic straight rod; 52. a limiting straight plate; 53. a threaded straight rod; 54. a resiliometer body; 55. a pressing lever; 56. rotating the ring five; 57. rotating the ring six; 58. a limiting groove; 59. and a limiting bump.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses manage and use concrete resiliometer. Referring to fig. 1, the concrete rebound apparatus for supervision comprises a base plate 11, wherein a lifting sleeve 12 is vertically fixed on the top surface of the base plate 11, and the lifting sleeve 12 is a tubular structure with a rectangular cross section. A lifting straight rod 13 penetrates through the lifting sleeve 12, and the lifting straight rod 13 is of a rod-shaped structure with a rectangular cross section.

Referring to fig. 2, a straight-through hole one 15 penetrating through the left side surface and the right side surface of the lifting sleeve 12 is formed in the bottom of the lifting sleeve 12, a worm 18 penetrates through the lifting sleeve 12 through the straight-through hole one 15, the left side surface and the right side surface of the inside of the lifting sleeve 12 are respectively abutted with a rotating circular ring one 20, and the two rotating circular rings one 20 are both fixed on the periphery side of the worm 18, so that the worm 18 is rotatably installed in the lifting sleeve 12. The end of the worm 18 passes through the side of the lifting sleeve 12 and is coaxially fixed with a stem 19. The inner peripheral surface of the lifting sleeve 12 is fixedly connected with a limiting straight plate 17, the top surface of the limiting straight plate 17 is provided with a straight through hole II 16, a screw 23 penetrates through the limiting straight plate 17 through the straight through hole II 16, the upper side surface and the lower side surface of the limiting straight plate 17 are respectively abutted with a rotating ring II 21, and the two rotating ring II 21 are respectively and fixedly connected to the peripheral side of the screw 23, so that the screw 23 is rotatably arranged on the limiting straight plate 17. The bottom end of the lead screw 23 is fixedly connected with a worm wheel 22, and the worm wheel 22 is meshed with the worm 18. The lifting straight rod 13 is provided with a first threaded through hole 14 along the length direction, and the top end of the lead screw 23 penetrates through the limiting straight plate 17 and is in threaded connection with the lifting straight rod 13 through the first threaded through hole 14. The rotating handle 19 is driven to rotate, the rotating handle 19 drives the worm 18 to rotate, the worm 18 drives the worm wheel 22 to rotate, the worm wheel 22 drives the screw rod 23 to rotate, and the screw rod 23 drives the lifting straight rod 13 to slide along the length direction of the lifting sleeve 12, so that the rotating handle 19 drives the lifting straight rod 13 to move up and down.

Referring to fig. 3 and 4, the top end of the lifting straight rod 13 is fixedly connected with a supporting straight plate 24, the top surface of the supporting straight plate 24 is provided with three through holes 25, the number of the three through holes 25 is two, and the supporting straight plate 24 is provided with a threaded straight rod 53 through the three through holes 25. The periphery of each threaded straight rod 53 is fixed with a third rotating ring 26, the number of the third rotating rings 26 is two, the two third rotating rings 26 correspond to the upper side surface and the lower side surface of the supporting straight plate 24 one by one, and the third rotating rings 26 are abutted against the corresponding side surfaces of the supporting straight plate 24, so that the threaded straight rods 53 are rotatably mounted on the supporting straight plate 24. A lifting straight plate 41 is arranged between the two threaded straight rods 53, two threaded through holes 42 are formed in the top surface of the lifting straight plate 41, two threaded through holes 42 are formed in the two threaded through holes 42, and the threaded straight rods 53 are in threaded connection with the lifting straight plate 41 through the two threaded through holes 42. The straight board 41 that goes up and down sets up the lift that runs through two sides around self along self length direction and leads to the groove 43, and two slide bars 44 are installed along self length direction to straight board 41 that goes up and down, and slide bar 44 tip fixed connection leads to the inslot wall in the lift 43. A detection plate 45 is arranged between the two sliding rods 44, two straight-through holes IV 29 are formed in the side face of the detection plate 45, and the sliding rods 44 penetrate through the detection plate 45 through the straight-through holes IV 29. The threaded straight rod 53 is driven to rotate, and the threaded straight rod 53 drives the lifting straight plate 41 to slide along the length direction of the threaded straight rod 53; the detection plate 45 is driven to move, and the detection plate 45 slides along the length direction of the slide rod 44.

Referring to fig. 4, the detection plate 45 is provided with a detection through groove 46 on two sides around self, four apex angle positions of the front side of the detection plate 45 are all vertically fixed with a telescopic sleeve 48, the side of the telescopic sleeve 48 close to the detection plate 45 is fixed with a telescopic spring 49, one end of the telescopic spring 49 away from the detection plate 45 is fixed with a telescopic straight rod 51, and the telescopic straight rod 51 is arranged in the telescopic sleeve 48 in a penetrating manner and slides along the length direction of the telescopic sleeve 48. A limiting straight plate 52 is fixed at one end, far away from the telescopic spring 49, of the telescopic straight rod 51, a five straight through holes 47 are formed in one end, far away from the telescopic straight rod 51, of the limiting straight plate 52, the limiting straight plate 52 is fixedly connected with a resiliometer body 54 through the five straight through holes 47, pressing rods 55 are fixed on the outer peripheral surface of the resiliometer body 54, and two pressing rods 55 are symmetrically arranged on the outer peripheral surface of the resiliometer body 54. The pressing rod 55 is pushed to move, the resiliometer body 54 slides along the length direction of the telescopic sleeve 48 and penetrates through the detection plate 45 through the detection through groove 46 until the end part of the resiliometer body 54 abuts against the surface of the detection wall body.

Referring to fig. 3 and 4, the top end of the threaded straight rod 53 is provided with a driving box 27, a cavity 28 is arranged inside the driving box 27, the bottom surface of the driving box 27 is provided with two through holes four 29, the through holes four 29 are communicated with the cavity 28, and the top end of the threaded straight rod 53 penetrates through the driving box 27 through the through holes four 29. The periphery of each threaded straight rod 53 is fixedly connected with a rotating ring four 30 and a rotating ring five 56, the rotating ring four 30 abuts against the inner bottom surface of the driving box 27, and the rotating ring five 56 abuts against the outer peripheral surface of the driving box 27, so that the threaded straight rods 53 are rotatably mounted in the driving box 27. The top end of each threaded straight rod 53 is coaxially fixed with a chain wheel 31, and the peripheral surfaces of the two chain wheels 31 are sleeved with chains 32, so that the two threaded straight rods 53 synchronously rotate. The top end of one of the threaded straight rods 53 is coaxially fixed with a first bevel gear 33, the periphery of the driving box 27 is provided with six through holes 50, the six through holes 50 are communicated with the cavity 28, and the driving box 27 is provided with a driving straight rod 35 in a penetrating mode through the six through holes 50. The end part of the driving straight rod 35 close to the first bevel gear 33 is coaxially fixed with a second bevel gear 34, and the first bevel gear 33 is meshed with the second bevel gear 34. The inner side wall and the outer side wall of the driving box 27 are respectively connected with a rotating circular ring six 57 in a butting mode, and the two rotating circular ring six 57 are fixedly connected to the peripheral side of the driving straight rod 35.

Referring to fig. 3 and 4, a first meshing ring 36 is fixedly connected to the outer peripheral surface of the driving box 27, the end portion, away from the second bevel gear 34, of the driving straight rod 35 penetrates through the first meshing ring 36 and is provided with a second meshing ring 37 in a penetrating mode, meshing teeth 38 are arranged on the side surfaces, close to each other, of the first meshing ring 36 and the second meshing ring 37, and the first meshing ring 36 and the second meshing ring 37 can be meshed with each other. The driving straight rod 35 is provided with a limiting groove 58 penetrating through the outer peripheral surface of the driving straight rod along the length direction of the driving straight rod, a limiting lug 59 is fixedly connected to the inner peripheral surface of the second meshing ring 37, and the limiting lug 59 is located in the limiting groove 58. The end part of the driving straight rod 35 far away from the second bevel gear 34 is fixedly connected with a pressing circular plate 40, the side surface of the pressing circular plate 40 close to the second meshing ring 37 is fixedly connected with a locking spring 39, and one end of the locking spring 39 close to the second meshing ring 37 abuts against the side surface of the second meshing ring 37. When the threaded straight rod 53 needs to be rotated, the first meshing ring 36 and the second meshing ring 37 are separated from each other, then the second meshing ring 37 is rotated, the second meshing ring 37 can drive the straight rod 35 to rotate under the action of the limiting groove 58 and the limiting lug 59, the straight rod 35 is driven to drive the second bevel gear 34 to rotate, the second bevel gear 34 drives the first bevel gear 33 to rotate, the first bevel gear 33 drives the threaded straight rod 53 to rotate, and the two threaded straight rods 53 realize synchronous motion under the action of the chain wheel 31 and the chain 32. When the threaded straight rod 53 does not need to be rotated, the second meshing ring 37 is released, the second meshing ring 37 slides along the length direction of the driving straight rod 35 through the reset action of the locking spring 39 until the second meshing ring is meshed with the first meshing ring 36, the second meshing ring 37 does not rotate any more, and therefore the threaded straight rod 53 does not rotate any more.

The embodiment of the application provides a concrete resiliometer for supervision's implementation principle does: place the detection area below with this resiliometer earlier, drive turning handle 19 rotates, and turning handle 19 drives lift straight-bar 13 and slides along lift sleeve 12 length direction, and lift straight-bar 13 drives resiliometer body 54 and slides up along vertical, moves to waiting to detect the region until resiliometer body 54. Then the first meshing ring 36 and the second meshing ring 37 are separated from each other, the second meshing ring 37 drives one of the threaded straight rods 53 to rotate, and the two threaded straight rods 53 realize synchronous motion through the action of the chain wheel 31 and the chain 32 until the detection plate 45 moves to four detection point positions at the same height. And then the second meshing ring 37 is released, and the second meshing ring 37 and the first meshing ring 36 are meshed with each other, so that the threaded straight rod 53 is not rotated any more, and the data of four detection points at the same height can be detected. The pushing pressing rod 55 is pushed to move, the resiliometer body 54 slides along the length direction of the telescopic sleeve 48 and penetrates through the detection plate 45 through the detection through groove 46 until the end part of the resiliometer body 54 abuts against the surface of a detection wall body, and therefore the resiliometer body 54 can be guaranteed to vertically fall into the detection wall surface. The second occlusion ring 37 is rotated to detect the detection point data with different heights.

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 concrete resiliometer for prison, includes bed plate (11), install in detection board (45) of bed plate (11) top and install in resiliometer body (54) of detection board (45) side, its characterized in that: the utility model discloses a detection device for it goes up and down to detect the wall body, including bed plate (11) top surface, detection plate (45) side is provided with and is used for the drive resiliometer body (54) fall perpendicularly at the stop gear who is detected the wall body surface, stop gear is including vertical fixation in telescopic tube (48), wear to locate of detection plate (45) side telescopic straight-bar (51) in telescopic tube (48) and be fixed in spacing straight board (52) of telescopic straight-bar (51) tip, resiliometer body (54) are fixed in spacing straight board (52) side.

2. The concrete rebound apparatus for supervision as claimed in claim 1, wherein: the lifting mechanism comprises a lifting sleeve (12) fixed on the top surface of the base plate (11), a lifting straight rod (13) arranged in the lifting sleeve (12) in a penetrating mode, a straight supporting plate (24) fixed at the end portion of the lifting straight rod (13), an adjusting assembly arranged on the top surface of the straight supporting plate (24) and used for adjusting the height of the detection plate (45), and a driving assembly arranged in the lifting sleeve (12) and used for driving the lifting straight rod (13) to slide.

3. The concrete rebound apparatus for supervision as claimed in claim 2, wherein: the driving assembly comprises a limiting straight plate (17) fixed on the inner circumferential surface of the lifting sleeve (12), a lead screw (23) rotatably mounted on the side surface of the limiting straight plate (17), a worm wheel (22) coaxially fixed at the end part of the lead screw (23) and a worm (18) rotatably mounted in the lifting sleeve (12), the worm wheel (22) is meshed with the worm (18), the lead screw (23) is in threaded connection with the lifting straight rod (13), and the end part of the lead screw (23) penetrates through the lifting sleeve (12) and is fixedly provided with a rotating handle (19).

4. The concrete rebound apparatus for supervision as claimed in claim 2, wherein: the adjusting part including rotate install in support a plurality of screw thread straight-bar (53), threaded connection of straight-bar (24) top surface in screw thread straight-bar (53) week side lift straight-bar (41) and set up in lift straight-bar (41) side is used for resiliometer body (54) provides the guide part of direction, screw thread straight-bar (53) tip is provided with and is used for driving a plurality of the synchronous pivoted lazytongs of screw thread straight-bar (53).

5. The concrete rebound apparatus for supervision as claimed in claim 4, wherein: the lifting straight plate is characterized in that a lifting through groove (43) is formed in the side face of the lifting straight plate (41) along the length direction of the lifting straight plate, the guide part comprises a plurality of sliding rods (44) arranged along the length direction of the lifting straight plate (41), the end parts of the sliding rods (44) are fixed on the inner side wall of the lifting through groove (43), and the sliding rods (44) penetrate through the detection plate (45), namely the detection plate (45) slides along the length direction of the sliding rods (44).

6. The concrete rebound apparatus for supervision as claimed in claim 4, wherein: the end part of the threaded straight rod (53) is provided with a driving box (27), the threaded straight rod (53) is rotatably arranged on the side surface of the driving box (27), the synchronizing mechanism comprises a chain wheel (31) which is coaxially fixed on the end part of the threaded straight rod (53) and a chain (32) which is sleeved on the peripheral surface of the chain wheel (31), and a locking mechanism which is used for controlling the rotation of the threaded straight rod (53) is arranged in the driving box (27).

7. The concrete rebound apparatus for supervision as claimed in claim 6, wherein: the locking mechanism comprises a first bevel gear (33) coaxially fixed at the end part of the threaded straight rod (53), a driving straight rod (35) rotatably installed on the side surface of the driving box (27), a second bevel gear (34) fixed at the end part of the driving straight rod (35) close to the first bevel gear (33), a first meshing ring (36) fixed at the side surface of the driving box (27), a second meshing ring (37) arranged on the peripheral side of the driving straight rod (35) in a penetrating manner, a pressing circular plate (40) fixed at the end part of the threaded straight rod (53) far away from the second bevel gear (34) and an expansion spring (49) fixed at the side surface of the pressing circular plate (40) close to the second bevel gear (34), wherein the expansion spring (49) is abutted against the side surface of the second meshing ring (37) far away from the second bevel gear (34), and the first bevel gear (33) is meshed with the second bevel gear (34), the side surfaces of the first meshing ring (36) and the second meshing ring (37) are provided with meshing teeth (38) which are meshed with each other, and a control mechanism for controlling the rotation of the driving straight rod (35) is arranged on the inner peripheral surface of the second meshing ring (37).

8. The concrete rebound apparatus for supervision as claimed in claim 7, wherein: the driving straight rod (35) is provided with a limiting groove (58) penetrating through the outer peripheral surface of the driving straight rod along the length direction of the driving straight rod, the control mechanism comprises a limiting lug (59) fixed on the inner peripheral surface of the second meshing ring (37), and the limiting lug (59) is located in the limiting groove (58).