A fixing structure for a steel pipe ultrasonic thickness gauge

Abstract

This utility model belongs to the field of ultrasonic thickness gauges, specifically relating to a fixing structure for an ultrasonic thickness gauge of steel pipes. It includes a steel pipe with two symmetrically distributed clamping blocks on its outer surface. A connecting rod is fixedly connected to the top of each clamping block, and a connecting seat is slidably fitted onto the outer sides of the two connecting rods. An ultrasonic probe is contacted at the top of the steel pipe, and a connecting plate is fixedly fitted onto the outer side of the ultrasonic probe. This utility model utilizes the meshing of bevel gear one and bevel gear two. When the handle is rotated, driving the rotating shaft and bevel gear one to rotate, bevel gear two and the forward and reverse screws can be rotated. The threaded engagement of the forward and reverse screws with the slide allows for horizontal movement of the slide, which in turn drives the connecting rods and clamping blocks to move horizontally. The contact between the clamping blocks and the steel pipe secures the entire connecting seat structure, achieving the purpose of installing and using the probe, resulting in a more secure and stable installation.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic thickness gauge technology, specifically a fixing structure for an ultrasonic thickness gauge for steel pipes. Background Technology

[0002] Ultrasonic thickness gauges for steel pipes are used to test the thickness of steel pipes during production and to monitor thickness changes in steel pipes during use due to corrosion, wear, etc., so as to ensure the quality and safety of steel pipes during manufacturing, use and maintenance.

[0003] Utility model patent CN211904069U discloses an ultrasonic thickness gauge for detecting thick-walled steel pipes, comprising a main unit structure, a probe structure, and a coupling agent supply structure. The main unit structure is electrically connected to the probe structure, while the coupling agent supply structure is fixedly connected to the main unit structure. The probe structure includes an acoustic wave head, a spring, a connecting plate, a clamping plate, and a support plate. The spring connects the connecting plate and the support plate, and the clamping plate is hinged to both ends of the connecting plate. Based on existing technology, this invention improves the structure of the ultrasonic thickness gauge by adding the spring, the connecting plate, the clamping plate, and the support plate, which work together to allow the acoustic wave head to be directly fixed to the pipe, avoiding the need for manual fixing of the probe to the pipe during measurement. The addition of the coupling agent supply structure further improves the performance of the ultrasonic thickness gauge.

[0004] In the aforementioned prior art, the thickness gauge uses a spring clamp for probe fixation during use. However, this method results in insufficient probe stability, and instability during measurement can negatively impact the thickness measurement process. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a fixing structure for an ultrasonic thickness gauge for steel pipes, which solves the problem of insufficient probe stability during clamping and fixing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixing structure for an ultrasonic thickness gauge for steel pipes, comprising a steel pipe, wherein two symmetrically distributed clamping blocks are in contact with the outer surface of the steel pipe, a connecting rod is fixedly connected to the top of the clamping blocks, a connecting seat is slidably sleeved on the outer side of the two connecting rods, an ultrasonic probe is in contact with the top of the steel pipe, a connecting plate is fixedly sleeved on the outer side of the ultrasonic probe, the ultrasonic probe is electrically connected to the main unit of the detector via a cable, a fixing mechanism is provided on the connecting rod, and a clamping mechanism is provided on the connecting plate.

[0007] Preferably, the fixing mechanism includes positive and negative screws. The positive and negative screws are rotatably sleeved inside the connecting seat via bearings. Two symmetrically distributed slide blocks are threaded to the outer sides of the positive and negative screws. The slide blocks are slidably connected to the connecting seat. A bracket is fixedly connected to the top of each slide block. A guide wheel is rotatably sleeved on the inner side of the bracket. The guide wheel is slidably connected to the connecting seat. A rotating shaft is rotatably sleeved on the top of the connecting seat via bearings. A handle is fixedly connected to the top of the rotating shaft, and a bevel gear is fixedly connected to the bottom of the rotating shaft. By designing this fixing mechanism, the entire structure can be fixed for use.

[0008] Preferably, the connecting seat has a guide groove inside, and a guide wheel is slidably connected inside the guide groove. By designing the guide groove, the guide wheel can slide inside the guide groove.

[0009] Preferably, a second bevel gear meshes with the outer side of the first bevel gear, and the second bevel gear is fixedly sleeved on the outer side of the positive and negative screws. By designing the meshing of the first and second bevel gears, the rotation of the positive and negative screws can be achieved when the first bevel gear rotates.

[0010] Preferably, the clamping mechanism includes a connecting sleeve, with the lower end of the connecting seat fixedly connected to the connecting sleeve. A guide rod is fixedly connected inside the connecting sleeve, a spring is provided on the outer side of the guide rod, and a pressure rod is slidably sleeved on the outer side of the guide rod. The pressure rod is slidably connected to the connecting sleeve, and a ball is movably sleeved inside the pressure rod. The ball is slidably connected to the connecting sleeve, and the pressure rod is fixedly connected to the connecting plate. By designing the clamping mechanism, the ultrasonic probe can be clamped against the steel pipe.

[0011] Preferably, one end of the spring is fixedly connected to the connecting sleeve, and the other end of the spring is fixedly connected to the pressure rod. The spring is designed so that its force can be applied to the pressure rod.

[0012] Preferably, the connecting sleeve has a groove inside, and a ball bearing is slidably connected inside the groove. By designing the groove, the ball bearing can slide inside the groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model designs a meshing mechanism between bevel gear one and bevel gear two. When the handle is turned, the rotating shaft and bevel gear one can rotate, which in turn can rotate bevel gear two and the positive and negative screws. Through the threaded engagement of the positive and negative screws with the slide, the slide can move horizontally. The slide can drive the connecting rod and the clamping block to move horizontally. The contact between the clamping block and the steel pipe can fix the overall structure of the connecting seat, achieving the purpose of installing and using the probe. The installation is more secure and stable.

[0014] 2. This utility model, through the design of the ultrasonic probe, can detect the wall thickness of steel pipes. During the overall structure installation process, after the ultrasonic probe comes into contact with the steel pipe, the pressure rod pushes against the spring. Under the elastic action of the spring, a downward counterforce is applied to the pressure rod, which can make the ultrasonic probe press against the steel pipe, effectively improving the stability of the ultrasonic probe during detection and thus improving the detection accuracy. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the overall structure of this utility model; Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure; Figure 3 This utility model Figure 2 Enlarged view of point A; Figure 4 This utility model Figure 2 The front sectional view of the connecting sleeve.

[0016] In the diagram: 1. Steel pipe; 2. Clamping block; 3. Connecting rod; 4. Connecting seat; 5. Ultrasonic probe; 6. Connecting plate; 8. Fixing mechanism; 9. Clamping mechanism; 81. Positive and negative screws; 82. Slide seat; 83. Bracket; 84. Guide wheel; 85. Guide groove; 86. Rotating shaft; 87. Handle; 88. Bevel gear one; 89. Bevel gear two; 91. Connecting sleeve; 92. Guide rod; 93. Spring; 94. Pressure rod; 95. Ball bearing; 96. Slide groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 , Figure 2 A fixing structure for an ultrasonic thickness gauge for steel pipes includes a steel pipe 1. Two symmetrically distributed clamping blocks 2 are in contact with the outer surface of the steel pipe 1. A connecting rod 3 is fixedly connected to the top of the clamping blocks 2. A connecting seat 4 is slidably sleeved on the outer side of the two connecting rods 3. An ultrasonic probe 5 is in contact with the top of the steel pipe 1. A connecting plate 6 is fixedly sleeved on the outer side of the ultrasonic probe 5. The ultrasonic probe 5 is electrically connected to the main unit of the detector via a cable. A fixing mechanism 8 is provided on the connecting rod 3, and a clamping mechanism 9 is provided on the connecting plate 6.

[0019] Please see Figure 1 , Figure 2 , Figure 3 The fixing mechanism 8 includes a positive and negative screw 81. The positive and negative screw 81 is rotatably sleeved inside the connecting seat 4 via bearings. Two symmetrically distributed slide blocks 82 are threadedly connected to the outer sides of the positive and negative screw 81. The slide blocks 82 are slidably connected to the connecting seat 4. A bracket 83 is fixedly connected to the top of the slide blocks 82. A guide wheel 84 is rotatably sleeved on the inner side of the bracket 83. The guide wheel 84 is slidably connected to the connecting seat 4. A guide groove 85 is provided inside the connecting seat 4. The guide wheel 84 is slidably connected inside the guide groove 85. By designing the guide groove 85, the guide wheel... 84 can slide inside the guide groove 85. The top of the connecting seat 4 is rotatably sleeved with a rotating shaft 86 via a bearing. The top of the rotating shaft 86 is fixedly connected with a handle 87. The bottom of the rotating shaft 86 is fixedly connected with a bevel gear 88. The outer side of the bevel gear 88 is meshed with a bevel gear 89. The bevel gear 89 is fixedly sleeved on the outer side of the positive and negative screws 81. By designing the meshing of bevel gear 88 and bevel gear 89, the rotation of the positive and negative screws 81 can be realized when bevel gear 88 rotates. By designing the fixing mechanism 8, the entire structure can be fixed for use.

[0020] Please see Figure 1 , Figure 2 , Figure 4 The clamping mechanism 9 includes a connecting sleeve 91. The lower end of the connecting seat 4 is fixedly connected to the connecting sleeve 91. A guide rod 92 is fixedly connected inside the connecting sleeve 91. A spring 93 is provided on the outer side of the guide rod 92. One end of the spring 93 is fixedly connected to the connecting sleeve 91, and the other end of the spring 93 is fixedly connected to the pressure rod 94. By designing the spring 93, the force of the spring 93 can act on the pressure rod 94. The pressure rod 94 is slidably sleeved on the outer side of the guide rod 92. The pressure rod 94 is slidably connected to the connecting sleeve 91. A ball bearing 95 is movably sleeved inside the pressure rod 94. The ball bearing 95 is slidably connected to the connecting sleeve 91. A groove 96 is opened inside the connecting sleeve 91. The ball bearing 95 is slidably connected inside the groove 96. By designing the groove 96, the ball bearing 95 can slide inside the groove 96. The pressure rod 94 is fixedly connected to the connecting plate 6. By designing the clamping mechanism 9, the ultrasonic probe 5 can be clamped against the steel pipe 1.

[0021] The specific implementation process of this utility model is as follows: In use, the ultrasonic probe 5 is first placed on top of the steel pipe 1 and in contact with the steel pipe 1. Then, the connecting seat 4 is pressed down, and the connecting seat 4 drives the connecting sleeve 91 to move down. The connecting sleeve 91 drives the guide rod 92 to slide along the pressure rod 94 and squeeze the spring 93. Under the elastic action of the spring 93, a downward pushing force is given to the pressure rod 94. The pressure rod 94 will press down the connecting plate 6, thereby making the ultrasonic probe 5 press against the steel pipe 1, which can effectively improve the stability of the ultrasonic probe 5 during detection and can improve the detection accuracy. The specific thickness measurement process has been disclosed in the utility model patent with patent authorization announcement number CN211904069U, which is a common technical means in this field and will not be described in detail here.

[0022] When it is necessary to fix the overall structure, turn the handle 87. The handle 87 drives the rotating shaft 86 to rotate, the rotating shaft 86 drives the first bevel gear 88 to rotate, the first bevel gear 88 drives the second bevel gear 89 to rotate, and the second bevel gear 89 drives the positive and negative screws 81 to rotate, causing the slide 82 to make threaded movement. The two slides 82 will move in opposite directions. The slides 82 drive the bracket 83 and the guide wheel 84 to slide along the connecting seat 4. At the same time, the slides 82 will drive the connecting rod 3 to move horizontally. The connecting rod 3 drives the clamping block 2 to move, so that the clamping block 2 clamps the steel pipe 1, thus fixing and installing the overall structure of the connecting seat 4, achieving the purpose of installing and using the probe, and making the installation more secure and stable.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing structure for an ultrasonic thickness gauge for a steel pipe, comprising a steel pipe (1), characterized by: The outer surface of the steel pipe (1) is in contact with two symmetrically distributed clamping blocks (2). A connecting rod (3) is fixedly connected to the top of the clamping block (2). A connecting seat (4) is slidably sleeved on the outer side of the two connecting rods (3). An ultrasonic probe (5) is in contact with the top of the steel pipe (1). A connecting plate (6) is fixedly sleeved on the outer side of the ultrasonic probe (5). The ultrasonic probe (5) is electrically connected to the detector host via a cable. A fixing mechanism (8) is provided on the connecting rod (3). A clamping mechanism (9) is provided on the connecting plate (6).

2. The fixing structure for ultrasonic thickness gauge of a steel pipe according to claim 1, characterized in that: The fixing mechanism (8) includes a positive and negative screw (81). The positive and negative screw (81) is rotatably sleeved inside the connecting seat (4) through a bearing. The positive and negative screw (81) is connected to two symmetrically distributed slides (82) through a thread on the outside. The slides (82) are slidably connected to the connecting seat (4). A bracket (83) is fixedly connected to the top of the slides (82). A guide wheel (84) is rotatably sleeved on the inside of the bracket (83). The guide wheel (84) is slidably connected to the connecting seat (4). A rotating shaft (86) is rotatably sleeved on the top of the connecting seat (4) through a bearing. A handle (87) is fixedly connected to the top of the rotating shaft (86). A bevel gear (88) is fixedly connected to the bottom of the rotating shaft (86).

3. The fixing structure for an ultrasonic thickness gauge for steel pipes according to claim 1, characterized in that: The connecting seat (4) has a guide groove (85) inside, and a guide wheel (84) is slidably connected inside the guide groove (85).

4. The fixing structure for ultrasonic thickness gauge of steel pipe according to claim 2, characterized in that: The outer side of the first bevel gear (88) is engaged with the second bevel gear (89), which is fixedly sleeved on the outer side of the positive and negative screws (81).

5. The fixing structure for ultrasonic thickness gauge of steel pipe according to claim 1, characterized in that: The clamping mechanism (9) includes a connecting sleeve (91). The lower end of the connecting seat (4) is fixedly connected to the connecting sleeve (91). The inside of the connecting sleeve (91) is fixedly connected to a guide rod (92). A spring (93) is provided on the outside of the guide rod (92). A pressure rod (94) is slidably sleeved on the outside of the guide rod (92). The pressure rod (94) is slidably connected to the connecting sleeve (91). A ball (95) is movably sleeved inside the pressure rod (94). The ball (95) is slidably connected to the connecting sleeve (91). The pressure rod (94) is fixedly connected to the connecting plate (6).

6. The fixing structure for ultrasonic thickness gauge of a steel pipe according to claim 5, characterized in that: One end of the spring (93) is fixedly connected to the connecting sleeve (91), and the other end of the spring (93) is fixedly connected to the pressure rod (94).

7. The fixing structure for ultrasonic thickness gauge of a steel pipe according to claim 5, characterized in that: The connecting sleeve (91) has a groove (96) inside, and a ball (95) is slidably connected inside the groove (96).

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