Prestressed pipeline grouting compactness monitoring device

Abstract

The utility model provides a grouting compactness monitoring device for a prestressed pipeline, and relates to the technical field of grouting compactness monitoring. The retainer is jointly composed of two retaining rings and a circle of longitudinal connecting shafts welded between the two retaining rings in a surrounding manner; two longitudinally-arranged sliding plates are symmetrically installed in the circular containing space between the two retaining rings in a sliding mode in the radial direction. Two vertical fixing shafts are symmetrically welded to the opposite sides of the two longitudinally-arranged sliding plates, a T-shaped sliding rod which is pushed and positioned through a spring is jointly installed on the two vertical fixing shafts in a sliding mode, and an ultrasonic probe is fixedly installed on the vertical rod section of the T-shaped sliding rod. In an idle state. The holder can be used as an overall support of the monitoring device and an anti-collision protection structure of the ultrasonic probe, the use effect of one device with two purposes is achieved, the anti-collision protection structure additionally arranged on the monitoring device for the ultrasonic probe can be omitted, the structure of the monitoring device can be simplified, and the manufacturing cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of grouting compactness monitoring technology, especially to a kind of pre-stressed pipeline grouting compactness monitoring device. BACKGROUND

[0002] The types of grouting compactness monitoring device are relatively rich, among which the monitoring device using ultrasonic wave is most widely used.

[0003] The monitoring device is to protect the detection sensor from collision in idle state, and more anti-collision protection structures are arranged thereon. However, the existing monitoring device cannot properly improve the original necessary structure to serve as an anti-collision protection structure, resulting in that the existing monitoring device cannot simplify the structure and reduce the cost. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of pre-stressed pipeline grouting compactness monitoring device to solve the problem that the original necessary structure cannot be properly improved to serve as an anti-collision protection structure.

[0005] The technical scheme provided by the utility model is as follows: a kind of pre-stressed pipeline grouting compactness monitoring device, specifically comprising a holder, the holder is composed of two retaining rings and a longitudinal connecting shaft welded around the two retaining rings;

[0006] Two longitudinal sliding plates are symmetrically installed in the circular receiving space between the two retaining rings along the radial direction; two vertical fixed shafts are symmetrically welded on the opposite sides of the two longitudinal sliding plates; a T-shaped slide rod positioned by a spring is slidably installed on the two vertical fixed shafts; an ultrasonic probe is fixedly installed on the vertical rod segment of the T-shaped slide rod; in idle state, the ultrasonic probe and the vertical fixed shafts are hidden in the circular receiving space along with the longitudinal sliding plate.

[0007] Further, two vertical positioning shafts are symmetrically welded on the inner periphery of the retaining ring, and a positioning shaft sleeve is welded between the first ends of the two vertical positioning shafts.

[0008] The longitudinal sliding plates are slidably connected with the two vertical positioning shafts at both ends.

[0009] Further, a driving shaft is rotatably installed through the two positioning shaft sleeves, the part of the driving shaft protruding from the positioning shaft sleeve is provided with external threads, a threaded ring is screwed onto the external threads, and two connecting rods are symmetrically connected between the middle parts of the two longitudinal sliding plates.

[0010] Further, the ultrasonic probe protrudes from the space between the vertical fixed shafts.

[0011] Further, in the monitoring use, the holder is inserted into the pipeline on the concrete member for bridge construction, and the four vertical fixing shafts and the two ultrasonic probes are in contact with the inner wall of the pipeline when being slid out.

[0012] Further, the control terminal is internally provided with a monitoring controller, and the monitoring controller is connected with the ultrasonic probes through a communication cable.

[0013] The prestressed pipeline grouting compactness monitoring device has the following beneficial effects:

[0014] I. The holder can be used as the overall support of the monitoring device and the anti-collision protection structure of the ultrasonic probe, and has the dual-use effect, which makes the monitoring device use the original holder to protect the ultrasonic probe from collision, so that the anti-collision protection structure for the ultrasonic probe is not needed, and the structure is simplified and the cost is reduced.

[0015] II. When the two longitudinal sliding plates are driven to slide towards each other to loosen the holder, the two ultrasonic probes are in contact with or separated from the inner wall of the pipeline, which can avoid the manual contact and separation of the two ultrasonic probes and the inner wall of the pipeline before and after each use, and the operation steps of the monitoring device are simplified. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present application, and are not limited to the present application.

[0018] In the drawings:

[0019] Figure 1 The overall use state schematic diagram of the present application is shown;

[0020] Figure 2 The state diagram of the holder inserted into the pipeline in the present application is shown;

[0021] Figure 3 The structure schematic diagram of the holder in the present application is shown;

[0022] Figure 4 The installation position schematic diagram of the driving shaft in the present application is shown;

[0023] Figure 5 The disassembly state schematic diagram of the driving shaft in the present application is shown;

[0024] Figure 6The utility model discloses a structure schematic diagram of longitudinal slide and screw ring.

[0025] List of reference signs:

[0026] 1, retainer; 101, retainer ring; 102, longitudinal connecting shaft; 103, positioning shaft sleeve; 104, vertical positioning shaft;

[0027] 2, control terminal;

[0028] 3, drive shaft; 301, screw ring; 302, connecting rod;

[0029] 4, longitudinal slide; 401, vertical fixed shaft; 402, T-shaped slide rod;

[0030] 5, ultrasonic probe;

[0031] 6, pipeline. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantage of the utility model more clear, the technical scheme of the utility model will be described clearly and completely below by combining the drawings of the utility model embodiment. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0033] Please refer to Figures 1 to 6 ; Embodiment one:

[0034] The utility model proposes a kind of prestressed pipeline pressure grouting compactness monitoring device, including retainer 1, retainer 1 is jointly formed by two retainer rings 101 and a circle longitudinal connecting shaft 102 around welding between two retainer rings 101;

[0035] Two longitudinal slides 4 are symmetrically slidably installed in the circular accommodating space between two retainer rings 101 along radial direction;Two vertical fixed shafts 401 are symmetrically welded on the opposite side of two longitudinal slides 4, T-shaped slide rod 402 is slidably installed on two vertical fixed shafts 401, and is positioned by spring pushing;Ultrasonic probe 5 is fixedly installed on the vertical rod section of T-shaped slide rod 402;In idle state, ultrasonic probe 5 and vertical fixed shaft 401 are hidden in circular accommodating space with longitudinal slide 4 sliding.

[0036] Preferably, the inner periphery of retainer ring 101 is symmetrically welded with two vertical positioning shafts 104, and positioning shaft sleeve 103 is welded between the first end of two vertical positioning shafts 104.

[0037] The two ends of the longitudinal sliding plate 4 are respectively in sliding fit with two vertical positioning shafts 104.

[0038] Based on the embodiment one, the embodiment two is:

[0039] A driving shaft 3 is rotatably installed on the two positioning shaft sleeves 103, the part of the driving shaft 3 protruding from the positioning shaft sleeves 103 is provided with external threads, a threaded ring 301 is screwed on the external threads, and two connecting rods 302 are symmetrically and rotatably connected between the middle parts of the two longitudinal sliding plates 4.

[0040] Preferably, the ultrasonic probe 5 protrudes from the space between the vertical fixing shafts 401.

[0041] Preferably, during monitoring, the holder 1 is integrally inserted into the pipeline 6 provided on the concrete member for bridge construction, and the four vertical fixing shafts 401 and the two ultrasonic probes 5 are in abutting contact with the inner periphery of the pipeline 6 when they are slid out.

[0042] The four vertical fixing shafts 401 can fix the holder 1 in the pipeline 6 when they are in abutting contact with the inner periphery of the pipeline 6, and the two ultrasonic probes 5 can detect the compaction degree of the pipeline 6 when they are in abutting contact with the inner periphery of the pipeline 6.

[0043] Preferably, the control terminal 2 is further provided, and a monitoring controller is installed in the control terminal 2 and connected in communication with the ultrasonic probe 5 through a communication cable.

[0044] The specific details, implementation steps, functions of each feature, and mutual relationship of the above content, as well as the role played in the process of realizing the present application, are described and explained in detail as follows:

[0045] The retaining ring 101 and the longitudinal connecting shaft 102 substantially constitute a cage-shaped protection structure, and when the ultrasonic probe 5 is slid and hidden in the circular accommodating space, it is in the cage-shaped protection structure, so that the ultrasonic probe 5 can be protected from collision by the cage-shaped protection structure in the idle state. Therefore, the holder 1 can be used as the overall support of the monitoring device and also as the anti-collision protection structure of the ultrasonic probe 5, which has a dual-use effect. This effect enables the monitoring device to use the original holder 1 to protect the ultrasonic probe 5 from collision, which can save the need to additionally configure an anti-collision protection structure for the ultrasonic probe 5, and helps to simplify the structure and reduce the cost.

[0046] The two connecting rods 302, the two longitudinal sliding plates 4 and the threaded ring 301 are jointly connected to form two crank slider mechanisms. Through the two crank slider mechanisms, the driving shaft 3 can rotate in both directions to drive the threaded ring 301 to slide back and forth along it, drive the two longitudinal sliding plates 4 and the four vertical fixed shafts 401 to slide up and down towards each other, control the four vertical fixed shafts 401 to be in contact or separated from the inner circumferential top of the pipeline 6, and implement the tension or relaxation of the retainer 1 in the pipeline 6.

[0047] Since the ultrasonic probes 5 protrude from the space between the vertical fixed shafts 401, the two ultrasonic probes 5 will first come into contact with the inner circumferential top of the pipeline 6 before the four vertical fixed shafts 401 come into contact with the inner circumferential top of the pipeline 6, and can be tightly fitted with the inner circumferential top of the pipeline 6 by using the pushing force of the springs on the four vertical fixed shafts 401.

[0048] When the two longitudinal sliding plates 4 are driven to slide towards each other to implement the tension or relaxation of the retainer 1, they can drive the two ultrasonic probes 5 to come into contact with or be separated from the inner circumferential top of the pipeline 6, which can save the trouble of manually contacting and separating the two ultrasonic probes 5 and the inner circumferential top of the pipeline 6 before and after each use, and help to simplify the operation and use steps of the monitoring device.

[0049] The working principle of the embodiment is as follows: during monitoring, the retainer 1 is inserted into the pipeline 6 of the concrete member for bridge construction, and then the four vertical fixed shafts 401 are driven to slide up and down towards each other by rotating the driving shaft 3, so that the retainer 1 is fixed inside the pipeline 6 and the two ultrasonic probes 5 come into contact with the inner circumferential top of the pipeline 6.

[0050] The two ultrasonic probes 5 can capture the acoustic parameters such as sound time, sound speed, wave amplitude and frequency of the ultrasonic waves emitted by them in the concrete, and send these parameters to the monitoring controller. The monitoring controller analyzes the relative changes of these parameters to judge the quality of the prestressed grouting. The specific principle is as follows: when the ultrasonic waves encounter areas with poor grouting or defects, the propagation path of the ultrasonic waves will change, the propagation time will be prolonged, the wave amplitude will be attenuated, and the frequency will also change. By analyzing the changes of these parameters, the grouting density can be evaluated.

Claims

1. A prestressed pipeline grouting compactness monitoring device, comprising a holder (1) which is composed of two retaining rings (101) and a longitudinal connecting shaft (102) which is circumferentially welded between the two retaining rings (101); characterized in that two longitudinal sliding plates (4) are symmetrically and radially installed in the circular accommodating space between the two retaining rings (101); the opposite sides of the two longitudinal sliding plates (4) are symmetrically welded with two vertical fixed shafts (401), the two vertical fixed shafts (401) are jointly and slidably installed with a T-shaped sliding rod (402) which is positioned by spring pushing, the vertical rod section of the T-shaped sliding rod (402) is fixedly installed with an ultrasonic probe (5); in the idle state, the ultrasonic probe (5) and the vertical fixed shaft (401) are hidden in the circular accommodating space by following the longitudinal sliding plate (4).

2. The device for monitoring the grouting quality of the prestressed pipe according to claim 1, characterized in that, The inner periphery of the retaining ring (101) is symmetrically welded with two vertical positioning shafts (104), and the first ends of the two vertical positioning shafts (104) are welded with a positioning shaft sleeve (103); the two ends of the longitudinal sliding plate (4) are respectively slidably connected with the two vertical positioning shafts (104).

3. The device for monitoring the grouting quality of a prestressed pipe according to claim 2, characterized in that, The two positioning shaft sleeves (103) are jointly and rotatably installed with a driving shaft (3) which penetrates through the two positioning shaft sleeves (103), the part of the driving shaft (3) which protrudes out of the positioning shaft sleeve (103) is provided with an external thread, the external thread is screwed with a threaded ring (301), and the threaded ring (301) is symmetrically and rotatably connected with the middle parts of the two longitudinal sliding plates (4) through two connecting rods (302).

4. The device for monitoring the grouting quality of a prestressed pipe according to claim 1, characterized in that, The ultrasonic probe (5) protrudes from the space between the vertical fixed shafts (401).

5. The device for monitoring the grouting quality of a pre-stressed pipe according to claim 1, characterized in that, When monitoring, the holder (1) is inserted into the pipeline (6) which is formed in the concrete member used for bridge construction, and the four vertical fixed shafts (401) and the two ultrasonic probes (5) are slidably and protrudingly in contact with the inner periphery of the pipeline (6).

6. The device for monitoring the grouting quality of a pre-stressed pipe according to claim 1, characterized in that, Further comprising a control terminal (2), the control terminal (2) is internally installed with a monitoring controller which is connected and communicated with the ultrasonic probe (5) through a communication cable.

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