Ultrasonic detection device for special-shaped pipeline

Abstract

The utility model discloses an ultrasonic detection device for a special-shaped pipeline, and relates to the technical field of pipeline detection. The device comprises a detection mechanism, the detection mechanism comprises semicircular plates which are symmetrically arranged in the vertical direction, convex grooves are formed in the peripheral walls of the semicircular plates in the circumferential direction of the semicircular plates, connecting blocks are arranged on the inner sides of the convex grooves, mounting plates are fixed to the outer ends of the connecting blocks, and left moving rods penetrate through the left sides of the mounting plates; a left elastic piece is arranged outside the left moving rod; a right moving rod penetrates through the right side of the mounting plate, a motor is fixed to the lower end of the right moving rod, a grinding disc is fixed to a power output shaft of the motor, and a right elastic part is arranged outside the right moving rod. According to the utility model, the two semicircular plates are fixed on the peripheral wall of the pipeline, the ultrasonic detector probe rotates along the pipeline under the action of the left elastic piece, so that the ultrasonic detector probe is more attached to the pipeline, and the grinding disc is driven by the motor to carry out welding slag cleaning on the part of the pipeline to be inspected.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline inspection technology, and in particular relates to an ultrasonic inspection device for irregularly shaped pipelines. Background Technology

[0002] Ultrasonic testing of pipelines is a non-destructive testing technology, mainly used to assess the integrity of pipelines and detect potential defects. It can inspect pipelines for corrosion, cracks, wall thickness, and weld joints. For the inspection of weld joints of irregularly shaped pipelines, such as elliptical pipelines, a portable ultrasonic testing instrument can be used. In specific operation, hold the portable ultrasonic testing instrument main unit in one hand and the portable ultrasonic testing instrument probe in the other hand, and keep the portable ultrasonic testing instrument probe close to the outer circumferential wall of the pipeline and move it circumferentially along the position to be inspected.

[0003] However, in the existing technology, when moving the portable ultrasonic probe along the outer wall of the pipe, it is necessary to apply a force to the portable ultrasonic probe to adhere to the pipe, and also to apply a force to the portable ultrasonic probe to move along the outer wall of the pipe. This is not only inconvenient to operate, but the portable ultrasonic probe is also prone to falling off due to operational errors. Furthermore, when inspecting welded joints of pipes, residual weld slag at the joint may affect the adhesion between the portable ultrasonic probe and the outer wall of the pipe, thus affecting the inspection results.

[0004] To address these issues, we provide an ultrasonic testing device for irregularly shaped pipes. Utility Model Content

[0005] The purpose of this invention is to provide an ultrasonic testing device for irregularly shaped pipes. By fixing two semi-circular plates to the outer wall of the pipe, the ultrasonic probe can be rotated along the pipe under the action of the left elastic element, thus making the ultrasonic probe fit the pipe better. Furthermore, the motor drives the grinding disc to clean the welding slag from the pipe area to be inspected. This solves the problem that in the prior art, when inspecting pipes, it is necessary to apply a force to the portable ultrasonic probe to fit against the pipe, and also to apply a force to move the portable ultrasonic probe along the outer wall of the pipe. This is not only inconvenient to operate, but also the portable ultrasonic probe is prone to falling off due to operational errors. In addition, the existing technology has problems such as residual welding slag at the joints affecting the fit between the portable ultrasonic probe and the outer wall of the pipe, thus affecting the inspection results.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an ultrasonic testing device for irregularly shaped pipes, comprising a testing mechanism. The testing mechanism includes semicircular plates symmetrically arranged vertically. A semi-elliptical groove is formed on the inner side of the semicircular plates, and a convex groove is formed on the outer circumference of the semicircular plates. A connecting block is provided on the inner side of the convex groove, and a mounting plate is fixed to the outer end of the connecting block. A left moving rod is provided through the left side of the mounting plate, and an ultrasonic testing instrument main unit is provided above the left moving rod. An ultrasonic testing instrument probe electrically connected to the ultrasonic testing instrument main unit is fixed to the lower end of the left moving rod, and a left elastic element is provided on the outside of the left moving rod. A right moving rod is provided through the right side of the mounting plate, and a motor is fixed to the lower end of the right moving rod. A grinding disc is fixed on the power output shaft of the motor, and a right elastic element is provided on the outside of the right moving rod.

[0008] The present invention is further configured such that the upper and lower ends of the left moving rod abut against the mounting plate and the ultrasonic detector probe, respectively, and a left annular plate is fixed to the upper end of the left moving rod.

[0009] The present invention is further configured such that end plates are fixed at both ends of the left wall of the upper semicircular plate, and bolts are threaded through the lower side of the end plates and connected to the lower semicircular plate by threads.

[0010] The present invention is further configured such that rectangular strips are fixed at both the front and rear ends of the right wall of the semicircular plate, and positioning rods are fixed at the lower ends of the two rectangular strips on the upper side, with the positioning rods and the rectangular strips on the lower side having a clearance fit.

[0011] The present invention is further provided that the bottom of the left and right side walls of the connecting block are fixed with bosses that cooperate with the convex grooves.

[0012] The present invention is further configured such that the upper and lower ends of the right elastic member abut against the mounting plate and the motor respectively, and a right annular plate is fixed to the upper end of the right elastic member.

[0013] The present invention is further configured such that a battery is provided on the upper wall of the mounting plate, and a box body fixed to the mounting plate is provided on the outside of the battery.

[0014] The present invention is further configured such that a plug is fixed on the lower wall of the mounting plate, the plug and the connecting block are fitted with a clearance, and a plug rod is inserted into the front wall of the connecting block, the plug rod and the plug are fitted with a clearance.

[0015] The present invention is further configured such that an L-shaped plate fixed to the connecting block is provided on the outside of the insertion rod, a spring is sleeved on the inner side of the L-shaped plate corresponding to the outside of the insertion rod, a baffle is fixed on the rear end of the spring corresponding to the outer peripheral wall of the insertion rod, and a pinching block is fixed on the front end of the insertion rod.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model, by setting a semi-circular plate, a left moving rod, and a left elastic element, causes the ultrasonic testing probe to rotate by moving the boss inside the convex groove. When the ultrasonic testing probe is rotating, the left elastic element applies a force to the ultrasonic testing probe, so that the ultrasonic testing probe always moves in contact with the outer peripheral wall of the irregular pipe. This eliminates the need for manual operation of the portable ultrasonic testing probe to apply a force to the pipe, making the operation more labor-saving and avoiding the risk of the ultrasonic testing probe falling off during inspection.

[0018] 2. This utility model, by setting up a motor and a grinding disc, allows the grinding disc to rotate when inspecting the part of the pipeline to be inspected. The grinding disc is driven by the motor to rotate and contact the part to be inspected, so that the boss moves inside the convex groove. This allows the rotating grinding disc to grind the part to be inspected, avoiding the influence of incompletely cleaned welding slag on normal inspection.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an overall structural diagram of an ultrasonic testing device for irregularly shaped pipes.

[0022] Figure 2 This is a structural diagram of the testing organization.

[0023] Figure 3 This is an exploded view of part of the structure of the testing facility.

[0024] Figure 4 This is a right-side structural view of an ultrasonic testing device for irregularly shaped pipes.

[0025] Figure 5 for Figure 4 An exploded view of part of the structure.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1-Detection mechanism, 101-Ultrasonic testing instrument main unit, 102-Mounting plate, 103-Connecting block, 103a-Boss, 104-Semi-circular plate, 104a-Convex groove, 104b-End plate, 104c-Semi-elliptical groove, 104d-Rectangular strip, 105-Ultrasonic testing instrument probe, 106-Left moving rod, 106a-Left elastic element, 106b-Left annular plate, 107-Positioning rod, 2-Motor, 201-Grinding disc, 3-Right moving rod, 301-Right elastic element, 302-Right annular plate, 4-Box body, 5-Battery, 6-Insertion block, 7-Insertion rod, 701-Pinch block, 702-L-shaped plate, 703-Baffle, 704-Spring. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1, please refer to Figure 1-3 This utility model relates to an ultrasonic testing device for irregularly shaped pipes, comprising a testing mechanism 1. The testing mechanism 1 includes two semicircular plates 104 symmetrically arranged vertically, forming a detachable circular plate. A semi-elliptical groove 104c is formed on the inner side of each semicircular plate 104, and the two semi-elliptical grooves 104c form an elliptical groove, providing space for an elliptical pipe to pass through the two semicircular plates 104. A convex groove 104a is formed on the outer peripheral wall of each semicircular plate 104 along its circumference. A boss 103a is located within the convex groove 104a and can move. A connecting block 103 is provided on the inner side of the convex groove 104a, and a mounting plate 10 is fixed to the outer end of the connecting block 103. 2. A left moving rod 106 is provided through the left side of the mounting plate 102. The left moving rod 106 is clearance-fitted with the mounting plate 102. An ultrasonic testing instrument host 101 is provided above the left moving rod 106. An ultrasonic testing instrument probe 105 electrically connected to the ultrasonic testing instrument host 101 is fixed at the lower end of the left moving rod 106. The ultrasonic testing instrument probe 105 is connected to the ultrasonic testing instrument host 101 through a wire. Meanwhile, portable ultrasonic testing instruments are existing technology, and their models are not limited here. A left elastic element 106a is provided on the outside of the left moving rod 106 to provide force for the ultrasonic testing instrument probe 105, so that the ultrasonic testing instrument probe 105 fits against the outer peripheral wall of the pipe.

[0030] Specifically, the upper and lower ends of the left moving rod 106 abut against the mounting plate 102 and the ultrasonic detector probe 105 respectively. The upper end of the left moving rod 106 is fixed with a left annular plate 106b, which provides a limiting effect for the left moving rod 106 and prevents the left moving rod 106 from detaching from the mounting plate 102.

[0031] End plates 104b are fixed at both ends of the left wall of the upper semicircular plate 104. Bolts are installed through the lower side of the end plates 104b and are threaded to the lower semicircular plate 104. In this state, the two semicircular plates 104 are connected to each other to be fixed to the outside of the pipe.

[0032] Rectangular strips 104d are fixed at both ends of the right wall of the semicircular plate 104. The lower ends of the two rectangular strips 104d on the upper side are fixed with positioning rods 107. The positioning rods 107 are clearance-fitted with the rectangular strips 104d on the lower side. The positioning rods 107 are inserted into the rectangular strips 104d on the lower side. This setting can prevent the two semicircular plates 104 from moving horizontally. The bolts are threadedly connected to the semicircular plate 104 on the lower side, so that the two semicircular plates 104 are in a relatively fixed state.

[0033] The bottom of the left and right side walls of the connecting block 103 is fixed with a boss 103a that mates with the convex groove 104a. The boss 103a moves along the inside of the convex groove 104a, so that the ultrasonic detector probe 105 moves circumferentially along the pipe, and the motor 2 drives the rotating grinding disc 201 to move circumferentially along the pipe.

[0034] The operation process of this embodiment is as follows: First, the irregular pipe to be tested is placed stably on the placement platform. The bolt is rotated to disengage the bolt from the corresponding semicircular plate 104. Then, the two semicircular plates 104 are separated. The two semicircular plates 104 are fitted onto the outside of the irregular pipe to be tested. The two semicircular plates 104 are then moved closer to each other until the positioning rod 107 is inserted into the rectangular strip 104d located on the lower side. Then, the bolt is passed through the end plate 104b and threadedly connected to the semicircular plate 104 located on the lower side to complete the fixation between the two semicircular plates 104 and the irregular pipe.

[0035] When inspecting irregularly shaped pipes, the operating mounting plate 102 rotates along the two semicircular plates 104, causing the ultrasonic testing probe 105 to rotate along the irregularly shaped pipe. Under the pressure applied by the left elastic element 106a to the ultrasonic testing probe 105, the ultrasonic testing probe 105 is moved to fit against the outer peripheral wall of the irregularly shaped pipe to achieve ultrasonic testing of the irregularly shaped pipe.

[0036] Example 2, please refer to Figure 1 , 45. This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the first embodiment in that: a right moving rod 3 is provided through the right side of the mounting plate 102. The right moving rod 3 is clearance-fitted with the mounting plate 102. A motor 2 is fixed at the lower end of the right moving rod 3. A grinding disc 201 is fixed on the power output shaft of the motor 2. The grinding disc 201 is driven to rotate by the motor 2, so that the rotating grinding disc 201 moves along the position to be tested to achieve grinding, cleaning the welding slag that is not completely cleaned at the position to be tested, and ensuring the fit between the ultrasonic testing instrument probe 105 and the irregular pipe. A right elastic element 301 is provided on the outside of the right moving rod 3.

[0037] Specifically, the upper and lower ends of the right elastic element 301 abut against the mounting plate 102 and the motor 2 respectively. The support force provided by the right elastic element 301 to the motor 2 is required to ensure that the grinding disc 201 can still contact the irregular pipe when the mounting plate 102 is at the lower end of the irregular pipe. The upper end of the right elastic element 301 is fixed with a right annular plate 302 to prevent the right moving rod 3 from detaching from the mounting plate 102.

[0038] A battery 5 is provided on the upper wall of the mounting plate 102 to provide power to the motor 2. The battery 5 is electrically connected to the motor 2 through wires. A box 4 fixed to the mounting plate 102 is provided on the outside of the battery 5 to provide protection for the battery 5.

[0039] A plug 6 is fixed to the lower wall of the mounting plate 102. The plug 6 is clearance-fitted with the connecting block 103. A plug rod 7 is inserted into the front wall of the connecting block 103. A plug hole is opened on the plug 6 at the position of the plug rod 7. The rear end of the plug rod 7 is inserted into the plug hole. At the same time, the plug hole passes through the plug 6. The plug rod 7 and the plug 6 are clearance-fitted. With the above configuration, when the plug rod 7 is inserted into the interior of the plug 6, the connecting block 103 and the plug 6 are in a relatively fixed state.

[0040] An L-shaped plate 702 fixed to the connecting block 103 is provided on the outside of the insertion rod 7. A spring 704 is sleeved on the inner side of the L-shaped plate 702 corresponding to the outside of the insertion rod 7. A baffle 703 is fixed to the rear end of the spring 704 corresponding to the outer peripheral wall of the insertion rod 7. A pinch block 701 is fixed to the front end of the insertion rod 7. With the above configuration, the insertion rod 7 can be moved by operating the pinch block 701. Under the action of the spring 704, the insertion rod 7 is always inserted into the insertion block 6 without external force operation, so as to prevent the insertion rod 7 from accidentally disengaging from the insertion block 6.

[0041] The remaining structure is the same as in Example 1;

[0042] The operation process of this embodiment is as follows: After the two semi-circular plates 104 are fixed to the outside of the irregular pipe, when grinding the irregular pipe, the pinch block 701 is moved forward by operating it, which drives the insertion rod 7 to disengage from the insertion block 6. At this time, the operating mounting plate 102 moves upward and rotates 180 degrees horizontally, so that the motor 2 is located to the left of the ultrasonic detector probe 105. Then, the insertion block 6 is inserted into the connecting block 103. Then, the force on the pinch block 701 is released, and the insertion rod 7 is inserted into the inside of the insertion block 6 under the action of the spring 704. At this time, the motor 2 is started to drive the grinding disc 201 to rotate. The rotation of the operating mounting plate 102 can make the grinding disc 201, which is rotating at high speed, grind the outer side of the irregular pipe.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. An ultrasonic testing device for irregularly shaped pipes, comprising a testing mechanism (1), characterized in that: The detection mechanism (1) includes a semi-circular plate (104) symmetrically arranged in the vertical direction. A semi-elliptical groove (104c) is provided on the inner side of the semi-circular plate (104). A convex groove (104a) is provided on the outer peripheral wall of the semi-circular plate (104) along the circumferential direction of the semi-circular plate (104). A connecting block (103) is provided on the inner side of the convex groove (104a). An installation plate (102) is fixed to the outer end of the connecting block (103). A left moving rod (106) is provided through the left side of the installation plate (102). An ultrasonic testing instrument host (101) is provided above the left moving rod (106). An ultrasonic testing instrument probe (105) electrically connected to the ultrasonic testing instrument host (101) is fixed to the lower end of the left moving rod (106). A left elastic element (106a) is provided on the outside of the left moving rod (106). A right moving rod (3) is provided through the right side of the mounting plate (102). A motor (2) is fixed at the lower end of the right moving rod (3). A grinding disc (201) is fixed on the power output shaft of the motor (2). A right elastic element (301) is provided on the outside of the right moving rod (3).

2. The ultrasonic testing device for irregularly shaped pipes according to claim 1, characterized in that: The upper and lower ends of the left moving rod (106) abut against the mounting plate (102) and the ultrasonic detector probe (105) respectively, and the upper end of the left moving rod (106) is fixed with a left annular plate (106b).

3. The ultrasonic testing device for irregularly shaped pipes according to claim 1, characterized in that: Both ends of the left wall of the upper semicircular plate (104) are fixed with end plates (104b). Bolts are provided through the lower side of the end plates (104b) and are threadedly connected to the lower semicircular plate (104).

4. The ultrasonic testing device for irregularly shaped pipes according to claim 3, characterized in that: Rectangular strips (104d) are fixed at both ends of the right wall of the semicircular plate (104). Positioning rods (107) are fixed at the lower ends of the two rectangular strips (104d) on the upper side. The positioning rods (107) are in clearance fit with the rectangular strips (104d) on the lower side.

5. The ultrasonic testing device for irregularly shaped pipes according to claim 1, characterized in that: The bottom of the left and right side walls of the connecting block (103) is fixed with a boss (103a) that matches the convex groove (104a).

6. The ultrasonic testing device for irregularly shaped pipes according to claim 1, characterized in that: The upper and lower ends of the right elastic element (301) abut against the mounting plate (102) and the motor (2) respectively, and the upper end of the right elastic element (301) is fixed with a right annular plate (302).

7. An ultrasonic testing device for irregularly shaped pipes according to claim 6, characterized in that: A battery (5) is provided on the upper wall of the mounting plate (102), and a box (4) fixed to the mounting plate (102) is provided on the outside of the battery (5).

8. The ultrasonic testing device for irregularly shaped pipes according to claim 1, characterized in that: The lower wall of the mounting plate (102) is fixed with a plug (6), the plug (6) is in clearance fit with the connecting block (103), and the front wall of the connecting block (103) is inserted with a plug rod (7), the plug rod (7) is in clearance fit with the plug (6).

9. An ultrasonic testing device for irregularly shaped pipes according to claim 8, characterized in that: The outside of the insertion rod (7) is provided with an L-shaped plate (702) fixed to the connecting block (103). The inner side of the L-shaped plate (702) is fitted with a spring (704) corresponding to the outside of the insertion rod (7). The rear end of the spring (704) is fixed with a baffle (703) corresponding to the outer peripheral wall of the insertion rod (7). The front end of the insertion rod (7) is fixed with a pinch block (701).

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