CN212300688U

CN212300688U - Stress sensor for construction land stress on-line monitoring

Info

Publication number: CN212300688U
Application number: CN202021272604.9U
Authority: CN
Inventors: 王选鹏; 吴晓奋; 邓雷; 秦胜强; 邓刘冰; 符辉
Original assignee: Anhui Beimu Wulian Technology Co ltd
Current assignee: Anhui Beimu Wulian Technology Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-01-05
Anticipated expiration: 2030-07-02

Abstract

The utility model provides a stress sensor of construction land used stress on-line monitoring, including the stress sensor body, fixed block and reinforcing bar, the fixed block has two, sets firmly respectively at the both ends of stress sensor body, and the fixed block divide into the logical groove on upper portion and the control box of lower part, the top of logical groove is provided with the rubber elastic pad, the roof of control box is seted up the fluting that supplies the eccentric shaft to rotate, and the eccentric shaft is located the control box to rotate and connect spacing arc, the arcwall face activity butt reinforcing bar of spacing arc, fix the reinforcing bar in the cavity between spacing arc and the rubber elastic pad; the side wall of the operation box is provided with a threaded hole, the adjusting screw penetrates through the threaded hole and is fixedly connected with a spline shaft, and the spline shaft is slidably arranged in a spline groove formed in the inner part of the eccentric shaft, so that the adjusting screw and the eccentric shaft are connected into a whole; the utility model has the advantages of rational in infrastructure simple, convenient operation, the installation is stable, and workman manipulation strength is little.

Description

Stress sensor for construction land stress on-line monitoring

Technical Field

The utility model relates to a sensor application technology field indicates a construction land used stress on-line monitoring's stress sensor especially.

Background

The stress sensor is a sensor generated based on the stress borne by a measured object, and is used for measuring the stress of steel bars in a structure and monitoring the stress change of the structure in real time when the sensor is embedded in concrete engineering of various building foundations, piles, underground continuous walls, various beam bodies and side slopes for a long time.

During construction, the stress meter is required to be installed on the steel bar according to the designed position, and the steel bar stress test is carried out. However, the stress sensor and the steel bar are connected by welding, which has the disadvantages of high operation strength of workers, complex installation process and easy damage to the stress meter testing component during welding operation.

Therefore, the utility model provides a construction land used stress on-line monitoring's stress sensor to solve the problem that the aforesaid exists.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's shortcoming, provide a construction land used stress on-line monitoring's stress sensor.

In order to solve the technical problem, the utility model provides a following technical scheme: a stress sensor for online monitoring of ground stress for construction comprises a stress sensor body, two fixing blocks and reinforcing steel bars, wherein the two fixing blocks are fixedly arranged at two ends of the stress sensor body respectively and are divided into a through groove at the upper part and an operation box at the lower part, a rubber elastic pad is arranged above the through groove, a notch for rotating an eccentric shaft is formed in the top wall of the operation box, the eccentric shaft is positioned in the operation box and is rotatably connected with a limiting arc-shaped part, the arc-shaped surface of the limiting arc-shaped part is movably abutted against the reinforcing steel bars, and the reinforcing steel bars are fixed in a cavity between the limiting arc-shaped part and the rubber elastic; the side wall of the operation box is provided with a threaded hole, the adjusting screw penetrates through the threaded hole and is fixedly connected with a spline shaft, and the spline shaft is slidably arranged in a spline groove formed in the inner part of the eccentric shaft to connect the adjusting screw and the eccentric shaft into a whole.

As an optimal technical scheme of the utility model, adjusting screw is including rotating nut, screw rod and integral key shaft, rotate between nut, screw rod and the integral key shaft three fixed connection and be a whole, and the diameter of screw rod is less than the diameter of integral key shaft center pin.

As an optimal technical scheme, the screw installation piece has set firmly on the one end inside wall that the rotation nut was kept away from to the control box, and the screw hole that supplies the screw rod to stretch out and draw back is seted up at the center of screw installation piece.

As an optimal technical scheme, inlay on the eccentric shaft and establish a plurality of rolling recesses, the rolling joint has the ball in the rolling recess, and the ball is connected with the diapire of spacing arc.

The utility model discloses the beneficial effect who reaches is: the utility model provides a stress sensor of construction land used stress on-line monitoring need not to adopt the welded connection mode, just can install the sensor on the reinforcing bar, causes the damage to the sensor when avoiding welding, and this rational in infrastructure simple, convenient operation, the installation is stable, and workman manipulation strength is little.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

FIG. 2 is a schematic view of the fixing block structure of the present invention;

FIG. 3 is a side view of the eccentric shaft of the present invention;

FIG. 4 is a side view of the adjusting screw of the present invention;

FIG. 5 is a schematic view of the three-dimensional structure of the adjusting screw of the present invention;

reference numbers in the figures: 1. a stress sensor body; 2. a fixed block; 3. reinforcing steel bars; 4. a through groove; 5. an operation box; 6. a rubber elastic pad; 7. an eccentric shaft; 8. grooving; 9. a limiting arc-shaped piece; 10. a threaded hole; 11. adjusting the screw rod; 12. a spline groove; 13. rotating the nut; 14. a screw; 15. a spline shaft; 16. a screw hole mounting block; 17. rolling the groove; 18. and a ball.

Detailed Description

The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1, the utility model provides a stress sensor for construction ground stress on-line monitoring, including stress sensor body 1, two fixed blocks 2 and reinforcing bar 3, two fixed blocks 2 set firmly respectively at the both ends of stress sensor body 1, and fixed block 2 divide into logical groove 4 on upper portion and control box 5 of lower part, the top of logical groove 4 is provided with rubber elastic pad 6, the roof of control box 5 is seted up the fluting 8 that supplies eccentric shaft 7 to rotate, and eccentric shaft 7 is located control box 5 to rotate and connect spacing arc 9, the arcwall face activity butt reinforcing bar 3 of spacing arc 9, fix reinforcing bar 3 in the cavity between spacing arc 9 and rubber elastic pad 6;

as shown in fig. 2, a threaded hole 10 is formed in a side wall of the operation box 5, the adjusting screw 11 penetrates through the threaded hole 10 to fixedly connect with a spline shaft 15, the spline shaft 15 is slidably mounted in a spline groove 12 formed in an inner portion of the eccentric shaft 7, the adjusting screw 11 and the eccentric shaft 7 are connected into a whole, the reinforcing steel bar 3 penetrates through the through groove 4 to be located in the fixed block 2, the adjusting screw 11 is rotated by a worker, the eccentric shaft 7 is synchronously rotated, one end portion, away from the spline groove 12, of the eccentric shaft 7 is gradually aligned to the bottom of the limiting arc-shaped part 9, the limiting arc-shaped part 9 is enabled to move upwards in the through groove 4, the reinforcing steel bar 3 is firmly fixed in a cavity between the limiting arc-shaped part 9 and.

As shown in fig. 4 and 5, the adjusting screw 11 includes a rotating nut 13, a screw 14 and a spline shaft 15, the rotating nut 13, the screw 14 and the spline shaft 15 are fixedly connected into a whole, the diameter of the screw 14 is smaller than that of the center shaft of the spline shaft 15, and when the rotating nut 13 is rotated, the screw 14 and the spline shaft 15 can synchronously rotate along with the rotating nut 13

Furthermore, a screw hole mounting block 16 is fixedly arranged on the inner side wall of one end of the operating box 5 far away from the rotating nut 13, and a threaded hole 10 for the screw rod 14 to stretch is formed in the center of the screw hole mounting block 16.

Furthermore, a plurality of rolling grooves 17 are embedded in the eccentric shaft 7, balls 18 are connected in the rolling grooves 17 in a rolling and clamping mode, and the balls 18 are connected with the bottom wall of the limiting arc-shaped part 9.

The working principle is as follows:

firstly, a reinforcing steel bar 3 penetrates through grooves 4 at the upper parts of two fixing blocks 2, and the reinforcing steel bar 3 and a stress sensor body 1 are preliminarily fixed;

then, by rotating the adjusting screw 11, one end part of the eccentric shaft 7, which is far away from the spline groove 12, is gradually aligned to the bottom of the limiting arc-shaped part 9, so that the limiting arc-shaped part 9 moves upwards in the through groove 4, and the reinforcing steel bar 3 is firmly fixed in a cavity between the limiting arc-shaped part 9 and the rubber elastic pad 6, and the installation operation is completed;

to sum up, the utility model has the advantages of rational in infrastructure simple, convenient operation installs stably.

The above embodiments are merely to describe the preferred embodiments of the present invention, and are not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. The stress sensor for the construction ground stress online monitoring is characterized by comprising a stress sensor body (1), two fixing blocks (2) and two reinforcing steel bars (3), wherein the two fixing blocks (2) are fixedly arranged at two ends of the stress sensor body (1) respectively, the fixing blocks (2) are divided into a through groove (4) in the upper portion and an operation box (5) in the lower portion, a rubber elastic cushion (6) is arranged above the through groove (4), a notch (8) for the eccentric shaft (7) to rotate is formed in the top wall of the operation box (5), the eccentric shaft (7) is located in the operation box (5) and is rotatably connected with a limiting arc-shaped part (9), the arc-shaped surface of the limiting arc-shaped part (9) is movably abutted against the reinforcing steel bars (3), and the reinforcing steel bars (3) are fixed in a cavity between the limiting arc-shaped part (9) and the rubber; the side wall of the operation box (5) is provided with a threaded hole (10), the adjusting screw (11) penetrates through the threaded hole (10) and is fixedly connected with a spline shaft (15), the spline shaft (15) is slidably installed in a spline groove (12) formed in the inner portion of the eccentric shaft (7), and the adjusting screw (11) and the eccentric shaft (7) are connected into a whole.

2. The stress sensor for on-line monitoring of construction site stress as claimed in claim 1, wherein the adjusting screw (11) comprises a rotating nut (13), a screw (14) and a spline shaft (15), the rotating nut (13), the screw (14) and the spline shaft (15) are fixedly connected into a whole, and the diameter of the screw (14) is smaller than that of the central shaft of the spline shaft (15).

3. The stress sensor for the on-line monitoring of the construction ground stress as claimed in claim 1, wherein a screw hole mounting block (16) is fixedly arranged on the inner side wall of one end of the operation box (5) far away from the rotating nut (13), and a screw hole (10) for the stretching of the screw rod (14) is formed in the center of the screw hole mounting block (16).

4. The stress sensor for the on-line monitoring of the construction site stress as claimed in claim 1, wherein a plurality of rolling grooves (17) are embedded on the eccentric shaft (7), balls (18) are clamped in the rolling grooves (17) in a rolling manner, and the balls (18) are connected with the bottom wall of the limiting arc-shaped part (9).