Acoustic wave detection auxiliary rod for concrete hollow foundation of fan

Abstract

The utility model provides a blower fan concrete hollow foundation sound wave detection auxiliary rod comprising a pair of annular buckles which are folded to form a complete annular buckle used for clamping a sensor; an upper hinge hole and a lower hinge hole are formed in the tail of each annular buckle, a distance is reserved between the two hinge holes, the upper hinge hole is hinged to the lower end of a first connecting rod, and a gear is hinged to the upper end of the first connecting rod. The lower hinge hole is hinged to the lower end of a second connecting rod, and the upper portion of the second connecting rod is hinged to a pushing sliding block. The pushing block is slidably mounted on the base, and a pressing finger is connected to the front end of the pushing block and located between the pair of annular buckles; the gear is mounted on the base; the tail part of the annular buckle, the first connecting rod, the second connecting rod, the pushing sliding block and the gear form a crank rocker mechanism; the pair of gears are meshed; the rear end of the push block is connected with a control rod. According to the utility model, a technician can paste the sensor on the ground.

Description

Technical Field

[0001] This utility model provides an auxiliary rod for acoustic wave testing of hollow concrete foundations for wind turbines, belonging to the technical field of testing tools. Background Technology

[0002] Hollow core foundations are one type of concrete foundation for wind turbines (see...) Figure 1 and Figure 2 During the pouring of the concrete foundation, various reasons may lead to problems such as uneven internal quality or voids (see...). Figure 3 To inspect the internal quality of hollow foundations for hybrid towers, the method of ultrasonic transmissive CT is commonly used.

[0003] In the process of using ultrasonic permeable CT to inspect the internal quality of a hollow foundation for a hybrid tower, sensors need to be attached to both the inner and outer sides of the foundation. As shown in the drawings of the hollow foundation, its height is generally around 5.4m (see...). Figure 4 During the sensor installation process, technicians typically stand on a ladder, determine the correct location, and then install the sensor. After one area is installed, the technician climbs down the ladder, two other people move the ladder, and then the technician climbs back up to continue installing (see...). Figure 5 ).

[0004] This technology has the following drawbacks:

[0005] 1. High risk. Technicians need to stand on a 6-meter-high ladder and rotate their bodies sideways to apply the adhesive, which carries a certain degree of danger.

[0006] 2. High cost. To complete the sensor installation, at least three people are needed: one person holds the sensor and installs it, while the other two people hold the ladder. After the installer comes down, the two people holding the ladder then move the ladder, which is time-consuming and labor-intensive.

[0007] 3. Low efficiency. During the pasting process, one person needs to carry several sensors, climb to the corresponding height, paste the sensors, and then climb down the ladder. Two other people then move the ladder to the corresponding position and repeat the above process, which is inefficient. Utility Model Content

[0008] This invention provides an auxiliary rod for acoustic wave detection of hollow concrete foundations for wind turbines, enabling technicians to attach sensors on the ground.

[0009] The specific technical solution is as follows:

[0010] An auxiliary rod for acoustic wave detection of a hollow concrete foundation for a wind turbine includes a pair of annular buckles. The pair of annular buckles are closed to form a complete annular buckle for holding a sensor. Each annular buckle has two hinge holes at its tail, with a distance between them. The upper hinge hole is hinged to the lower end of a first connecting rod, and the upper end of the first connecting rod is hinged to a gear. The lower hinge hole is hinged to the lower end of a second connecting rod. The upper end of the second connecting rod is hinged to a hole on the base and engages with the gear, which is mounted on the base.

[0011] A pair of gears meshing;

[0012] The push block is slidably mounted on the base. A pressing finger is connected to the front end of the push block, and the pressing finger is located between a pair of ring-shaped buckles. A control rod is connected to the rear end of the push block.

[0013] The ring-shaped buckle tail, the first connecting rod, the push block, and the gear form a crank-rocker mechanism.

[0014] The control lever has markings.

[0015] The control lever is a telescopic lever.

[0016] This invention provides an auxiliary rod for acoustic wave detection of hollow concrete foundations for wind turbines, enabling technicians to attach sensors on the ground.

[0017] 1. There is no danger. Technicians only need this auxiliary rod to complete the sensor attachment work. No ladder is needed;

[0018] 2. Low cost. The work of attaching the sensors can be completed by one technician, saving labor and reducing costs.

[0019] 3. High efficiency. No need to climb up and down or move ladders; one technician can complete the task alone, greatly improving efficiency. Attached Figure Description

[0020] Figure 1 Photograph of the overall structure of a hybrid hollow foundation using existing technology;

[0021] Figure 2 Photographs of the hollow section of a hybrid tower hollow foundation in existing technology;

[0022] Figure 3 Photographs showing partial voiding of existing hollow foundations for hybrid towers;

[0023] Figure 4 This is a dimensional diagram of a hybrid hollow foundation structure based on existing technology.

[0024] Figure 5 The existing bonding method for sensors in the hollow part of the hybrid tower hollow foundation;

[0025] Figure 6 This is a front view of the acoustic wave detection auxiliary rod for the hollow concrete foundation of the wind turbine according to this utility model;

[0026] Figure 7 This is a back view of the acoustic wave detection auxiliary rod for the hollow concrete foundation of the wind turbine according to this utility model;

[0027] Figure 8 This is a side view of the acoustic wave detection auxiliary rod for the hollow concrete foundation of the wind turbine according to this utility model. Detailed Implementation

[0028] This utility model provides an auxiliary rod for acoustic wave detection of hollow concrete foundations for wind turbines, as shown in the front view. Figure 6 See the back view. Figure 7 See side view Figure 8 .

[0029] An auxiliary rod for acoustic wave detection of a hollow concrete foundation for a wind turbine includes a pair of annular buckles 1. The pair of annular buckles 1 are closed to form a complete annular buckle for holding a sensor. Each annular buckle 1 has two hinge holes at its tail, with a distance between the two hinge holes. The upper hinge hole is hinged to the lower end of a first connecting rod 8, and the upper end of the first connecting rod 8 is hinged to a gear 5. The lower hinge hole is hinged to the lower end of a second connecting rod 3. The upper end of the second connecting rod 3 is hinged to a hole on a base 4 and engages with the gear 5. The gear 5 is mounted on the base 4.

[0030] A pair of gears 5 mesh; the meshing of a pair of gears 5 can cause a pair of ring buckles 1 to move synchronously, rotating in opposite directions at the same time.

[0031] The push block 6 is slidably mounted on the base 4. The front end of the push block 6 is connected to the push finger 2, which is located between a pair of annular latches 1. The rear end of the push block 6 is connected to the control lever 7. The push block 6 controls the movement of the push finger 2, and the distance of movement can be observed through the control lever 7.

[0032] The ring buckle 1, the first connecting rod 8, the second connecting rod 3, the push slider 6, and the gear 5 form a crank-rocker mechanism. The main function of the crank-rocker mechanism is to control the rotation of the gear 5 by pushing the block 6 up and down, thereby driving the opening and closing of a pair of ring buckles 1.

[0033] The control lever 7 has a scale.

[0034] Control lever 7 is a telescopic lever.

[0035] The specific usage method is as follows:

[0036] 1. The technician stands on the ground and fixes the sensor to the ring buckle 1. The sensor is fixed in place by the crank rocker mechanism and gear 5. Adhesive is applied to the bottom of the sensor.

[0037] 2. After calculating the required placement location, adjust the length of control lever 7 (with scale and telescopic function) to place the sensor in the corresponding position in the hollow part of the hollow foundation of the mixing tower;

[0038] 3. Pressing the push block 6 will cause the push finger 2 to generate a forward pushing force, which will fix the sensor at the corresponding position on the hollow foundation of the mixing tower.

[0039] 4. Repeat the above process to paste the next sensor until the pasting process is complete.

Claims

1. An auxiliary rod for acoustic wave detection of hollow concrete foundations for wind turbines, characterized in that, Includes a pair of ring buckles (1), which together form a complete ring buckle for holding the sensor; each ring buckle (1) has two hinge holes at its tail, with a distance between them. The upper hinge hole is hinged to the lower end of the first connecting rod (8), and the upper end of the first connecting rod (8) is hinged to the gear (5); the lower hinge hole is hinged to the lower end of the second connecting rod (3); the upper end of the second connecting rod (3) is hinged to the hole on the base (4) and engages with the gear (5), and the gear (5) is mounted on the base (4); A pair of gears (5) mesh; The push block (6) is slidably mounted on the base (4). The front end of the push block (6) is connected to a pressing finger (2), which is located between a pair of ring buckles (1). The rear end of the push block (6) is connected to a control rod (7). The ring buckle (1) tail, the first connecting rod (8), the push block (6) and the gear (5) form a crank rocker mechanism.

2. The acoustic wave detection auxiliary rod for a wind turbine hollow concrete foundation according to claim 1, characterized in that, The control lever (7) is provided with a scale.

3. The acoustic wave detection auxiliary rod for a wind turbine hollow concrete foundation according to claim 1, characterized in that, The control lever (7) is a telescopic lever.

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