CN215866216U

CN215866216U - Measuring point positioning device for measuring concrete strength by ultrasonic rebound method

Info

Publication number: CN215866216U
Application number: CN202122037338.2U
Authority: CN
Inventors: 魏超; 王志强; 王小娟; 李良; 文恒
Original assignee: Sichuan Jitong Engineering Testing Co ltd
Current assignee: Sichuan Jitong Engineering Testing Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-02-18
Anticipated expiration: 2031-08-26

Abstract

The utility model relates to a measurement station positioner of concrete intensity is surveyed to supersound resilience method belongs to concrete intensity measurement field, and it includes the mount pad, it is provided with first sliding seat and second sliding seat to slide along the length direction of self in the mount pad, be provided with first rectangle frame on the first sliding seat, be provided with second rectangle frame on the second sliding seat, second rectangle frame with the structure of first rectangle frame is the same and with first rectangle frame symmetry sets up, all can dismantle on first rectangle frame and the second rectangle frame and be provided with the waffle slab, be provided with the drive assembly that is used for driving first rectangle frame and second rectangle frame to the direction removal that is close to each other on the mount pad. The method and the device have the effect of keeping the drawn symmetrical measuring areas consistent.

Description

Measuring point positioning device for measuring concrete strength by ultrasonic rebound method

Technical Field

The application relates to the field of concrete strength measurement, in particular to a measuring point positioning device for measuring concrete strength by an ultrasonic rebound method.

Background

The ultrasonic rebound comprehensive method is a method for respectively measuring sound and rebound values in the same measuring area of the member concrete by adopting an ultrasonic instrument and a resiliometer and then calculating the compressive strength of the concrete in the measuring area by utilizing an established strength measuring formula.

The traditional Chinese patent document with the publication number of CN205538495U discloses an ultrasonic rebound method measuring point arrangement device for measuring the bending strength of cement concrete, and the key points of the technical scheme are as follows: the energy-saving printing plate comprises a printing plate, wherein a columnar transducer marking post and a rebound marking post are arranged on the lower end surface of the printing plate, and a handle is arranged on the upper end surface of the printing plate; it also comprises a coloring storage box which can be buckled with the printing plate, and the coloring storage box is internally provided with a printing oil sponge.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the symmetrical measurement areas are drawn, drawing inconsistency of the symmetrical measurement areas is easily caused.

SUMMERY OF THE UTILITY MODEL

In order to keep the drawn symmetrical measuring areas consistent, the application provides a measuring point positioning device for measuring the concrete strength by an ultrasonic rebound method.

The application provides a measurement station positioner of concrete strength is surveyed to supersound resilience method adopts following technical scheme:

the measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method comprises a mounting seat, wherein a first sliding seat and a second sliding seat are arranged in the mounting seat in a sliding manner along the length direction of the mounting seat, a first rectangular frame is arranged on the first sliding seat, a second rectangular frame is arranged on the second sliding seat, the second rectangular frame is identical to the first rectangular frame in structure and is symmetrically arranged with the first rectangular frame, grid plates can be detachably arranged on the first rectangular frame and the second rectangular frame, and a driving assembly for driving the first rectangular frame and the second rectangular frame to move towards the direction close to each other is arranged on the mounting seat.

Through adopting above-mentioned technical scheme, when needs draw the symmetry area of surveying, install the grid plate respectively on first rectangle frame and second rectangle frame, drive assembly can drive first rectangle frame and second rectangle frame and move towards the direction that is close to each other, move to first rectangle frame and second rectangle frame and all with beam column looks butt, can guarantee the corresponding position of first rectangle frame and second rectangle frame in beam column both sides like this. The positions of the grid plates on the first rectangular frame and the second rectangular frame are determined at the same time, and because each grid of the grid plate is a measuring point, the positions of the measuring points on two symmetrical sides of the concrete beam or column member are determined at the same time, so that the positioning efficiency and the positioning accuracy of the measuring points when the strength of the concrete beam or column is detected by the ultrasonic springback comprehensive method are greatly improved, and the detection precision is further improved.

Optionally, the first rectangular frame is connected with the first sliding seat through a first telescopic rod, and the second rectangular frame is connected with the second sliding seat through a second telescopic rod.

Through adopting above-mentioned technical scheme, adjust the length of first telescopic link and second telescopic link according to the size of waiting to detect concrete beam column to make the length of first telescopic link and second telescopic link the same, can guarantee the corresponding position of first rectangle frame and second rectangle frame in concrete beam column both sides like this, thereby improved the scope that first rectangle frame and second rectangle frame painted the district.

Optionally, the drive assembly includes the double-shaft screw, the double-shaft screw rotates along the length direction of mount pad and sets up in the mount pad, all set up threaded hole and cover on first sliding seat and the second sliding seat and establish on the double-shaft screw, the screw thread of the screw hole of first sliding seat and second sliding seat revolves to the opposite direction, the one end of double-shaft screw is provided with the crank.

Through adopting above-mentioned technical scheme, when first rectangle frame and second rectangle frame need be removed, rotate the crank, the crank can drive the rotation of biax lead screw when rotating, the biax lead screw rotates the in-process and can drive first sliding seat and second sliding seat along the length direction of mount pad removal in opposite directions promptly, first sliding seat and second sliding seat drive first rectangle frame and second rectangle frame synchronous motion, thereby make first rectangle frame and second rectangle frame all with roof beam column face looks butt, and then fix the position of first rectangle frame and second rectangle frame on the concrete beam column, the staff of being convenient for carries out measurement operation.

Optionally, a flexible sleeve is arranged on the handle of the crank.

Through adopting above-mentioned technical scheme, through establishing the flexible sleeve on the handle at the crank, the staff is when using the crank, and the palm contacts with the flexible sleeve to the travelling comfort of holding the process has been improved.

Optionally, a plurality of inserting columns are arranged on the first rectangular frame and the second rectangular frame, inserting holes for the inserting columns to be matched with are formed in the grid plate, and the inserting columns are in interference fit with the inserting holes.

By adopting the technical scheme, when the grid plate is installed, the plugging columns on the first rectangular frame or the second rectangular frame are inserted into the plugging holes in the grid plate, and then the grid plate can be fixed. When the concrete beam column is detected, grid plates with different grid sizes are needed by different measuring methods, and the grid plates are in plug-in fit with the first rectangular frame and the second rectangular frame, so that the grid plates with other grid sizes can be conveniently replaced and used.

Optionally, the frame edges of the first rectangular frame and the second rectangular frame are provided with scale marks.

By adopting the technical scheme, when the concrete beam column is detected, different measurement methods need grid plates with different grid sizes. When the net board that the staff held does not accord with current measurement requirement, through set up the scale on the frame limit at first rectangle frame and second rectangle frame, the staff can draw the test according to the scale that sets up on first rectangle frame and the second rectangle frame at the scene and draw the district to improve work efficiency.

Optionally, a plurality of flexible abutting blocks are arranged on the surfaces of the first rectangular frame and the second rectangular frame, which are close to each other.

Through adopting above-mentioned technical scheme, when measuring the concrete beam post, need make first rectangle frame and second rectangle frame and concrete beam post looks butt, through set up flexible butt piece on the face of first rectangle frame with second rectangle piece symmetry, play the cushioning effect when the butt, play the guard action to first rectangle frame and second rectangle frame.

Optionally, both ends of the mounting seat are provided with a holding portion.

Through adopting above-mentioned technical scheme, through set up the portion of gripping at the both ends of mount pad to the staff of being convenient for grips the mount pad.

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

1. according to the method, the first sliding seat and the second sliding seat are arranged in the mounting seat in a sliding mode, the first rectangular frame is arranged on the first sliding seat, the second rectangular frame is arranged on the second sliding seat, the first rectangular frame and the second rectangular frame can be detachably provided with the grid plate, each grid of the grid plate is a measuring point, the positions of the measuring points on two symmetrical side surfaces of the concrete beam or column member are determined, the positioning efficiency and the positioning accuracy of the measuring points when the strength of the concrete beam or column is detected by the ultrasonic springback synthesis method are greatly improved, and the detection precision is further improved;

2. according to the drawing device, the first telescopic rod is arranged between the first rectangular frame and the first sliding seat, and the second telescopic rod is arranged between the second rectangular frame and the second sliding seat, so that the distance between the first rectangular frame and the mounting seat and the distance between the second rectangular frame and the mounting seat can be adjusted, and further the first rectangular frame and the second rectangular frame can meet more drawing area requirements;

3. this application is through setting up drive assembly on the mount pad to be convenient for make first rectangle frame and second rectangle frame steadily to the direction removal that is close to each other, last and concrete beam column looks butt, thereby make first rectangle frame and the symmetry setting of second rectangle frame on the beam column component.

Drawings

Fig. 1 is a schematic structural view of the entire present application.

Fig. 2 is a schematic structural diagram of a first rectangular frame and a second rectangular frame in the present application.

Description of reference numerals: 1. a mounting seat; 11. a first sliding seat; 12. a second sliding seat; 2. a first rectangular frame; 21. a first telescopic rod; 211. a first sleeve; 212. a first link; 213. a first holding bolt; 3. a second rectangular frame; 31. a second telescopic rod; 311. a second sleeve; 312. a second link; 313. a second holding bolt; 4. a grid plate; 41. inserting holes; 5. a drive assembly; 51. a double-shaft screw; 52. a crank; 521. a flexible sleeve; 6. inserting the column; 7. scale marks are arranged on the scale; 8. a flexible abutment block; 9. a grip portion; 91. a support plate; 92. a support rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses survey station positioner of concrete strength is surveyed to supersound rebound method, refer to fig. 1, fig. 2, including mount pad 1, it is provided with first sliding seat 11 and second sliding seat 12 to slide along self length direction in the mount pad 1, installs first rectangle frame 2 on the first sliding seat 11, installs second rectangle frame 3 on the second sliding seat 12, second rectangle frame 3 is the same with the structure of first rectangle frame 2 and sets up with first rectangle frame 2 symmetry, demountable installation has grid plate 4 on first rectangle frame 2 and the second rectangle frame 3.

Referring to fig. 1 and 2, a first rectangular frame 2 is connected with a first sliding seat 11 through a first telescopic rod 21, a second sliding seat 12 is connected with a second sliding seat 12 through a second telescopic rod 31, the first telescopic rod 21 includes a first connecting rod 212 and a first sleeve 211, the first sleeve 211 is slidably sleeved on the first connecting rod 212, a first abutting bolt 213 is arranged on the first sleeve 211 in a penetrating manner, and after the first telescopic rod 21 is adjusted to a proper height, the first abutting bolt 213 is screwed, so that the height of the first connecting rod 212 and the height of the first rectangular frame 2 can be fixed; the second telescopic rod 31 comprises a second connecting rod 312 and a second sleeve 311, the second sleeve 311 is slidably sleeved on the second connecting rod 312, a second abutting bolt 313 penetrates through the second sleeve 311, and after the second telescopic rod 31 is adjusted to a proper height, the second abutting bolt 313 is screwed down to fix the height of the second connecting rod 312 and the height of the second rectangular frame 3. First telescopic link 21 and second telescopic link 31 all cavity and set up to alleviate the weight of this application device to a certain extent, and then reduce intensity of labour.

Referring to fig. 1 and 2, the mounting base 1 is provided with a driving assembly 5 for driving two rectangular frames to move in a direction in which the rectangular frames are close to each other, the driving assembly 5 includes a double-shaft screw 51, the double-shaft screw 51 is rotatably installed in the mounting base 1 along the length direction of the mounting base 1, the double-shaft screw 51 includes two screws with threads, the two screws are connected in a coaxial welding manner, the positions where the two screws are connected are not provided with threads, that is, the middle position of the double-shaft screw 51 is not provided with threads. All set up threaded hole and establish respectively at the both ends of biax lead screw 51 on first sliding seat 11 and the second sliding seat 12, the screw thread of the threaded hole of first sliding seat 11 and second sliding seat 12 is turned to oppositely, and the one end of biax lead screw 51 extends to the mount pad 1 outside and installs crank 52. The crank 52 is rotated to drive the dual spindle screw 51 to rotate, and the dual spindle screw 51 can drive the first sliding seat 11 and the second sliding seat 12 to move towards the direction of approaching each other in the rotating process.

Referring to the drawings, in order to improve the comfort of the worker during use of the crank 52, a flexible sleeve 521 is bonded to the handle of the crank 52. In the process of rotating the double-shaft screw 51 through the crank 52, the palm of the hand is in direct contact with the flexible sleeve 521, but not in direct contact with the crank 52, so that the comfort in the operation process is improved. The flexible sleeve 521 in this embodiment is made of sponge, and in other embodiments, it may be made of flexible materials such as foam and rubber.

Referring to fig. 1 and 2, a plurality of inserting columns 6 are welded on the first rectangular frame 2 and the second rectangular frame 3, the plurality of inserting columns 6 are distributed on four corners of the first rectangular frame 2 and the second rectangular frame 3, inserting holes 41 matched with the inserting columns 6 are formed in the grid plate 4, and the inserting columns 6 and the inserting holes 41 are in interference fit. When the grid plate 4 is used, the plugging columns 6 are aligned and inserted into the plugging holes 41 in the grid plate 4, so that the grid plate 4 can be fixed on the first rectangular frame 2 or the second rectangular frame 3, and the grid plate 4 is not easy to fall off in the working process.

Referring to fig. 1 and 2, since the grid plate 4 is divided into a plurality of grids and the usual mapping area specifications are 200 × 200 and 400 × 400 when the strength of concrete is measured by the ultrasonic rebound method, the grid plate 4 is prefabricated into an angle grid plate and a plane grid plate in advance, the angle grid plate is set to 200 × 200, and the plane grid plate is set to 400 × 400. Each grid on the grid plate 4 is a measuring point, and a worker does not need to manually draw a test grid, so that the worker can quickly select a proper grid plate 4 for measurement, errors generated when the worker manually draws the grid are reduced, the positioning efficiency and the positioning accuracy of the measuring point when the ultrasonic springback comprehensive method detects the strength of the concrete beam or column are greatly improved, and the detection precision is further improved.

Referring to fig. 1 and 2, scale scales 7 are respectively engraved on the frame edges of the first rectangular frame 2 and the second rectangular frame 3, and different measurement methods require grid plates 4 with different grid sizes. When the grid plate 4 held by the worker does not meet the current measurement requirement, the worker can draw the test drawing area by hand according to the scale scales 7 engraved on the first rectangular frame 2 and the second rectangular frame 3 on the spot, so that the measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method can adapt to more test drawing area requirements.

Referring to fig. 1 and 2, a plurality of flexible abutting blocks 8 are fixedly bonded on the symmetrical surfaces of the first rectangular frame 2 and the second rectangular frame 3, the flexible abutting blocks 8 are distributed on four corners of the symmetrical surfaces of the first rectangular frame 2 and the second rectangular frame 3, and when a mapping area is drawn on a concrete beam column, the first rectangular frame 2 and the second rectangular frame 3 are required to be abutted against the concrete beam column so as to ensure stability. Flexible butt piece 8 can play the buffering effect, plays the guard action to first rectangle frame 2 and second rectangle frame 3. In this embodiment, the flexible abutting block 8 is made of rubber, and in other embodiments, it may be made of sponge, plastic, etc.

Referring to fig. 1 and 2, the holding portion 9 is welded and fixed at both ends of the mounting seat 1, the holding portion 9 includes a supporting plate 91 and a supporting rod 92, the supporting plate 91 is welded at the end of the supporting seat, and the supporting rod 92 is welded on the supporting plate 91. When measuring the beam column, two staff respectively hold the branch 92 at the two ends of the mounting seat 1 and can lift the mounting seat 1, thereby facilitating the subsequent detection operation of the staff on the concrete beam column.

The implementation principle of the measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method in the embodiment of the application is as follows: when the strength of the concrete beam column is measured by using an ultrasonic rebound method, a worker holds the handle 92 on the support seat to lift the mounting seat 1, adjusts the heights of the first telescopic rod 21 and the second telescopic rod 31 to adjust the vertical heights of the first rectangular frame 2 and the second rectangular frame 3, and then fixes the concrete beam column by using the first abutting bolt 213 and the second abutting bolt 313 respectively; rotating the crank 52 to enable the first rectangular frame 2 and the second rectangular frame 3 to be in contact with the concrete beam column; the symmetrical mapping areas can be positioned consistently by selecting the appropriate grid plate 4 and mounting the grid plate 4 on the first rectangular frame 2 and the second rectangular frame 3.

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 measurement station positioner of concrete strength is surveyed to supersound resilience method which characterized in that: including mount pad (1), slide along the length direction of self in mount pad (1) and be provided with first sliding seat (11) and second sliding seat (12), be provided with first rectangle frame (2) on first sliding seat (11), be provided with second rectangle frame (3) on second sliding seat (12), second rectangle frame (3) with the structure of first rectangle frame (2) is the same and with first rectangle frame (2) symmetry sets up, all can dismantle on first rectangle frame (2) and second rectangle frame (3) and be provided with waffle slab (4), be provided with on mount pad (1) and be used for driving drive assembly (5) that first rectangle frame (2) and second rectangle frame (3) removed to the direction that is close to each other.

2. The measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method according to claim 1, which is characterized in that: the first rectangular frame (2) is connected with the first sliding seat (11) through a first telescopic rod (21), and the second rectangular frame (3) is connected with the second sliding seat (12) through a second telescopic rod (31).

3. The measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method according to claim 1, which is characterized in that: drive assembly (5) include double-shaft screw (51), double-shaft screw (51) rotate along the length direction of mount pad (1) and set up in mount pad (1), all set up threaded hole and cover on first sliding seat (11) and second sliding seat (12) and establish on double-shaft screw (51), the screw thread of the screw hole of first sliding seat (11) and second sliding seat (12) is revolved to the opposite direction, the one end of double-shaft screw (51) is provided with crank (52).

4. The measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method according to claim 3, which is characterized in that: a flexible sleeve (521) is arranged on the handle of the crank (52).

5. The measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method according to claim 1, which is characterized in that: all be provided with many spliced poles (6) on first rectangle frame (2) and second rectangle frame (3), set up on grid plate (4) and supply spliced pole (6) matched with spliced eye (41), spliced pole (6) and spliced eye (41) interference fit.

6. The measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method according to claim 1, which is characterized in that: and scale scales (7) are arranged on the frame edges of the first rectangular frame (2) and the second rectangular frame (3).

7. The measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method according to claim 1, which is characterized in that: and a plurality of flexible abutting blocks (8) are arranged on the surfaces of the first rectangular frame (2) and the second rectangular frame (3) which are close to each other.

8. The measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method according to claim 1, which is characterized in that: both ends of the mounting seat (1) are provided with holding parts (9).