A water-coated probe detection assembly and wall thickness measurement system for small-bore tubing

Abstract

The utility model discloses a kind of water-coated probe detection components and small pipe diameter pipe's wall thickness measuring system, and it is related to thickness measurement technical field, can effectively solve the problem that current ultrasonic probe output end exists bubble and leads to wall thickness measurement inaccuracy.This utility model embodiment discloses a kind of water-coated probe detection components, including probe shell and the probe main body being located in probe shell, and the water baffle fixed to the bottom of probe shell;Water hole is equipped in the probe shell, and the water groove at the bottom of probe shell, water groove is communicated with water hole, the water baffle is located in the directly below of water hole and water groove, water hole, water baffle, and water groove form L-shaped flow channel for continuously supplying water to the bottom output end of probe main body cover.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a water-covered probe detection component and a wall thickness measurement system for small-diameter pipe fittings. Background Technology

[0002] In the continuous production line of pipe fittings, after production is completed, it is necessary to test its various performance indicators to ensure that the pipe fittings meet the quality standards when leaving the factory. Among them, the wall thickness of the pipe fittings is one of the important test indicators, and it is necessary to ensure that the wall thickness of the pipe fittings is uniform and meets the standards at all positions along its circumference.

[0003] In pipe wall thickness testing methods, water immersion combined with ultrasonic testing is commonly used. However, air bubbles exist in the detection path between the existing ultrasonic probe and the pipe being tested, especially tiny air bubbles near the probe side, which can cause distortion in the wall thickness measurement results of the ultrasonic probe. Therefore, further improvements are needed.

[0004] Based on this, the inventors designed a water-covered probe detection component and a wall thickness measurement system for small-diameter pipe fittings to solve at least one of the above problems, and thus, this application is filed. Utility Model Content

[0005] The purpose of this application is to provide a water-covered probe detection component and a wall thickness measurement system for small-diameter pipe fittings, which solves the problem of inaccurate wall thickness measurement caused by air bubbles at the output end of conventional ultrasonic probes.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following solution: On the one hand, this application provides a water-covered probe detection assembly, including a probe housing and a probe body disposed inside the probe housing, as well as a water baffle plate fixed to the bottom of the probe housing; The probe housing is provided with a water passage hole and a water passage groove located at the bottom of the probe housing. The water passage groove is connected to the water passage hole. The water baffle is located directly below the water passage hole and the water passage groove. The water passage hole, the water baffle, and the water passage groove form an L-shaped flow channel for continuously supplying water to the bottom output end of the probe body.

[0007] Optionally, the water-passing groove includes a funnel-shaped enlarged section and a circular exposed section. The exposed section is located directly below the output end of the probe body. The end of the enlarged section away from the exposed end has a smaller width and communicates with the water-passing hole. The bottom output end of the probe body is also provided with an arched notch located directly above the exposed section.

[0008] Optionally, the side of the baffle plate facing the water passage groove is also provided with a semi-circular clearance notch.

[0009] Optionally, it also includes a locking bolt that is threaded to the probe housing, and the probe body is locked and fixed inside the probe housing by the locking bolt; The probe housing is also provided with a limiting groove; The probe body is also provided with a limiting rod extending radially outward, and the limiting rod is located in the limiting groove.

[0010] Optionally, the probe housing is further provided with a pin mounting hole for mounting the transmission pin; It also includes the water inlet connector installed at the water passage.

[0011] On the other hand, this application provides a wall thickness measurement system for small-diameter pipe fittings, including a water-covered probe detection assembly as described above, and also includes a transmission assembly and a locking mechanism disposed in the main body of the water tank; The detection components are evenly distributed around the small-diameter pipe fitting along its travel direction. The locking mechanism is provided in two parts and is symmetrically distributed on both sides of several detection components; The locking mechanism includes a locking gear disk and a locking mounting disk arranged in parallel, as well as multiple locking components. The locking gear disk is connected to the power output end of the transmission component. The locking gear disk is provided with multiple involute grooves that are symmetrically distributed along its circumference. The locking mounting disk is provided with multiple strip-shaped locking holes that are evenly distributed along its circumference. The length direction of the strip-shaped locking holes is parallel to the radial direction of the locking mounting disk. One or two locking mechanisms have their locking components connected and fixed to the detection component through the overlapping area of ​​the through-strip locking hole and the involute groove.

[0012] Optionally, the locking assembly includes a protective shell, a bracket, a roller, and a transmission pin. The transmission pin is set perpendicular to the surface of the locking mounting plate, and the locking assembly is fixedly connected to the detection assembly through the transmission pin; The protective shell is installed on the locking mounting plate. One end of the bracket is located inside the protective shell and is fixedly connected to the transmission pin. The other end of the bracket extends out of the protective shell and is rotatably connected to the roller. The axis of the roller is parallel to the surface of the locking mounting plate and perpendicular to its radial direction.

[0013] Optionally, the locking assembly further includes a pin sleeve fitted on the transmission pin for achieving balanced wear. The pin sleeve is movably connected to the transmission pin, and the length of the pin sleeve is greater than the sum of the thicknesses of the locking mounting plate and the locking gear plate. The transmission pin has a step at the end near the detection component; The pin sleeve has an annular protrusion at one end near the detection component for abutting against the step and for limiting its position.

[0014] Optionally, the number of locking components is even. In multiple locking assemblies, two parallel rollers are distributed on the same plane along the travel direction of the small-diameter pipe fitting, while two adjacent rollers are distributed on two different planes along the travel direction of the small-diameter pipe fitting.

[0015] Optionally, the transmission assembly includes a transmission shaft horizontally disposed on and rotatably connected to the locking mounting plate, and two transmission gears mounted on the transmission shaft. The locking gear disk includes several driven teeth disposed on its peripheral wall, and two transmission gears respectively mesh with the driven teeth on the locking gear disks of the two locking mechanisms.

[0016] Optionally, the top of the locking mounting plate is further provided with a mounting part, and the top of the mounting part is provided with a mounting groove for mounting a bearing. The drive shaft is mounted in the mounting groove of the locking mounting plate through the bearing.

[0017] Optionally, the drive shaft is further provided with a drive worm gear; It also includes a drive assembly for driving the drive shaft to rotate; The drive assembly includes a drive worm gear that is connected to the transmission worm wheel, and a drive motor and / or a drive handwheel. The power output ends of the drive motor and the drive handwheel are both connected to the transmission worm gear.

[0018] Optionally, it also includes a housing assembly, which includes a first housing and a second housing arranged side by side between the two locking mechanisms, as well as a detection channel tube and a connecting rod; A sealing ring is provided between the first disc shell and the second disc shell, and the first disc shell and the second disc shell are respectively fixedly connected to the locking mounting discs of the two locking mechanisms, and the locking gear discs of the two locking mechanisms are respectively located inside the first disc shell and the second disc shell; The connecting rod passes through the first and second disc shells, and its two ends are respectively fixedly connected to the locking mounting discs of the two locking mechanisms. The detection channel tube passes through the first and second housings. Both ends of the detection channel tube are sealed and fixedly connected to the locking mounting plates of the two locking mechanisms, respectively. The detection channel tube is also provided with a detection port that matches the position of the detection component.

[0019] Optionally, the main body of the water tank may also be included; The transmission components, locking mechanism, and several detection components and disc housing components are all located inside the water tank body. The water tank body has through holes on both sides for small-diameter pipe fittings to pass through. The central axis of the through hole coincides with the rotational symmetry axis of the first disc shell, the second disc shell, the locking mounting disc, the locking gear disc, and the multiple involute grooves. The bottom of the first and second disc shells is also provided with a drain outlet.

[0020] Beneficial effects of the utility model: 1. By improving the structure of the detection component to have an L-shaped flow channel, water can be continuously supplied to the bottom output end of the probe body during ultrasonic wall thickness detection, thereby continuously flushing the bottom output end of the probe body and preventing tiny air bubbles from remaining there. This solves the problem of inaccurate measurement results caused by air bubbles at the output end of the probe body affecting the measurement parameters when using ultrasonic probes in the water immersion method for wall thickness detection.

[0021] II. By setting up a transmission component, a detection component, and two locking mechanisms, with the two locking mechanisms located on both sides of the detection component, and the locking gear disc and locking mounting disc of the locking mechanism respectively equipped with involute grooves and strip-shaped locking holes, the locking components of the locking mechanism are fixedly connected to the detection component through the involute grooves and strip-shaped locking holes. This allows the transmission component to drive the two locking gear discs to rotate, and by utilizing the constraint of the involute grooves and strip-shaped locking grooves, all detection components and locking components can move synchronously inward along the radial direction of the locking mounting disc. This enables the locking components to press the pipe section that needs to be ultrasonically tested, ensuring that it does not float or deform. At the same time, the detection component moves closer to the small-diameter pipe fitting that needs to be tested for ultrasonic wall thickness detection, effectively solving the current problem of inaccurate wall thickness measurement for small-diameter pipe fittings due to floating and bending.

[0022] Specifically, this application utilizes a unique combination of slotted holes in the locking mechanism's mounting plate and locking gear plate, along with a spatial arrangement where the two locking mechanisms are located on either side of the detection assembly. This allows all the detection assemblies and the locking components of the locking mechanisms to move synchronously towards the central axis of the small-diameter pipe fitting. This centering and pressing of the detection section of the small-diameter pipe fitting during its movement ensures the detection section remains straight, thereby guaranteeing accurate wall thickness detection. Attached Figure Description

[0023] Figure 1 This application presents a three-dimensional structural schematic diagram of Embodiment 1.

[0024] Figure 2 A three-dimensional structural schematic diagram of Embodiment 1 of this application from another perspective.

[0025] Figure 3 A cross-sectional structural diagram of Embodiment 1 of this application.

[0026] Figure 4 This is a three-dimensional structural diagram of Embodiment 2 of this application.

[0027] Figure 5 This is a three-dimensional structural diagram of Embodiment 2 of this application after the water tank has been removed.

[0028] Figure 6 This is a three-dimensional structural diagram of the internal structure of Embodiment 2 of this application.

[0029] Figure 7 This is a three-dimensional structural diagram of the internal structure of Embodiment 2 of this application from another perspective.

[0030] Figure 8 This is a three-dimensional structural diagram of the detection component installed on the locking mechanism in Embodiment 2 of this application.

[0031] Figure 9 This is a schematic diagram of the planar structure of the detection component installed on the locking mechanism in Embodiment 2 of this application.

[0032] Figure 10 This is a schematic diagram of the planar structure of the locking mechanism after removing the locking components in Embodiment 2 of this application.

[0033] Figure 1 Examples of this application Explanation of reference numerals in the attached drawings: 1-Water tank body, 21-Drive assembly, 211-Drive motor, 212-Drive handwheel, 213-Drive worm gear, 22-Drive shaft, 23-Drive worm wheel, 24-Drive gear, 31-First disc shell, 32-Second disc shell, 33-Detection channel tube, 331-Detection port, 34-Connecting rod, 35-Sealing ring, 4-Locking mechanism, 41-Locking assembly, 411-Roller, 412-Bracket, 413-Shell, 414-Drive pin, 415-Pin guard 42-Locking mounting plate, 421-Strip locking hole, 422-Mounting part, 423-Mounting groove, 43-Locking gear disc, 431-Driven gear, 432-Involute groove, 5-Detection component, 51-Probe housing, 511-Water passage groove, 512-Limiting groove, 513-Water passage hole, 514-Pin mounting hole, 52-Water baffle, 521-Avoiding notch, 53-Locking bolt, 54-Probe body, 541-Limiting rod, 542-Arched notch, 55-Water connector. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0035] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] Example 1: like Figures 1 to 3 As shown, this embodiment provides a water-covered probe detection assembly 5, including a probe housing 51 and a probe body 54 disposed inside the probe housing 51, as well as a water baffle 52 fixed to the bottom of the probe housing 51; The probe housing 51 is provided with a water passage hole 513 and a water passage groove 511 located at the bottom of the probe housing 51. The water passage groove 511 is connected to the water passage hole 513. The water baffle 52 is located directly below the water passage hole 513 and the water passage groove 511. The water passage hole 513, the water baffle 52, and the water passage groove 511 form an L-shaped flow channel for continuously supplying water to the bottom output end of the probe body 54.

[0039] This embodiment improves the structure of the detection component 5 by giving it an L-shaped flow channel, which allows for continuous water supply to the bottom output end of the probe body 54 during ultrasonic wall thickness detection. This continuously flushes the bottom output end of the probe body 54, preventing tiny air bubbles from remaining there. This solves the problem of inaccurate measurement results caused by air bubbles at the output end of the probe body 54 affecting measurement parameters when using an ultrasonic probe in the water immersion method for wall thickness detection. It effectively addresses the current problem of inaccurate wall thickness measurement caused by air bubbles at the output end of ultrasonic probes.

[0040] In this embodiment, the water passage groove 511 includes a funnel-shaped expanded section and a circular exposed section. The exposed section is located directly below the output end of the probe body 54. The end of the expanded section away from the exposed end has a smaller width and is connected to the water passage hole 513. The bottom output end of the probe body 54 is also provided with an arched notch 542 located directly above the exposed section. The central axis of the arched notch 542 is perpendicular to the travel direction of the small-diameter pipe fitting, ensuring that the ultrasonic waves emitted by the probe body 54 can accurately measure the wall thickness of the small-diameter pipe fitting.

[0041] In this embodiment, by setting an enlarged section and an exposed section, after the clean water flows out of the water passage 513, the water flow pattern can be changed from cylindrical to flat due to the obstruction of the water baffle. This allows the clean water to fully cover and rinse the bottom output end of the probe body 54, ensuring that no air bubbles adhere and thus ensuring the accuracy of the wall thickness measurement.

[0042] In this embodiment, as Figure 1 As shown, the water baffle 52 is also provided with a semi-circular clearance notch 521 on the side facing the water passage groove 511 to avoid obstructing the detection of the probe body 54.

[0043] In this embodiment, as Figure 2 and Figure 3 As shown, it also includes a locking bolt 53 that is threadedly connected to the probe housing 51, and the probe body 54 is locked and fixed inside the probe housing 51 by the locking bolt 53; The probe housing 51 is also provided with a limiting groove 512; The probe body 54 is also provided with a limiting rod 541 extending radially outward. The limiting rod 541 is located in the limiting groove 512 to prevent the probe body 54 from being affected by the rotation of the locking bolt 53 during installation, which would cause angular deviation and affect the detection accuracy. In this application, the locking bolt 53 is set to tighten and fix the probe body 54, which facilitates the subsequent disassembly and maintenance of the probe body 54.

[0044] In this embodiment, the probe housing 51 is also provided with a pin mounting hole 514 for mounting the transmission pin 414; It also includes a water inlet connector 55 installed at the water inlet 513 for easy water connection.

[0045] Example 2: Based on the above embodiment 1, as follows Figures 4 to 10 As shown, this embodiment provides a wall thickness measurement system for small-diameter pipe fittings, including a water-covered probe detection component 5 of the above embodiment 1, and also includes a transmission component and a locking mechanism 4 disposed in the water tank body 1; The detection components 5 are evenly distributed around the small-diameter pipe fitting along its travel direction. Two locking mechanisms 4 are provided and are symmetrically distributed on both sides of several detection components 5; The locking mechanism 4 includes a locking gear disk 43 and a locking mounting disk 42 arranged in parallel, as well as a plurality of locking components 41. The locking gear disk 43 is connected to the power output end of the transmission component. The locking gear disk 43 is provided with a plurality of involute grooves 432 that are symmetrically distributed along its circumference. The locking mounting disk 42 is provided with a plurality of strip-shaped locking holes 421 that are evenly distributed along its circumference. The length direction of the strip-shaped locking holes 421 is parallel to the radial direction of the locking mounting disk 42. One or both locking mechanisms 4 have their locking components 41 connected and fixed to the detection component 5 through the overlapping area of ​​the through-strip locking hole 421 and the involute groove 432.

[0046] This embodiment sets up a transmission component, a detection component 5, and two locking mechanisms 4, with the two locking mechanisms 4 located on both sides of the detection component 5. The locking gear disk 43 and the locking mounting disk 42 of the locking mechanism 4 are respectively provided with an involute groove 432 and a strip-shaped locking hole 421. The locking component 41 of the locking mechanism 4 is fixedly connected to the detection component 5 through the involute groove 432 and the strip-shaped locking hole 421. Thus, when the transmission component drives the two locking gear disks 43 to rotate, the involute groove 432 and the strip-shaped locking groove restrict all the detection components 5 and the locking component 41 to move synchronously inward along the radial direction of the locking mounting disk 42. This allows the locking component 41 to press the pipe section that needs to be ultrasonically tested to ensure that it does not float or deform. At the same time, the detection component 5 moves closer to the small-diameter pipe to be tested to perform ultrasonic wall thickness testing, effectively solving the current problem of inaccurate wall thickness measurement for small-diameter pipes.

[0047] In other words, the core concept of this embodiment lies in utilizing the special combination of the slotted holes of the locking mechanism 4 locking mounting plate 42 and the locking gear plate 43, as well as the spatial arrangement of the two locking mechanisms 4 located on both sides of the detection component 5. This allows all the detection components 5 and the locking components 41 of the locking mechanism 4 to move synchronously towards the central axis of the small-diameter pipe fitting, thereby centering, pressing, and detecting the detection section of the small-diameter pipe fitting during its movement. Moreover, it ensures that the detection section is in a straight state, thus ensuring accurate detection of the wall thickness.

[0048] In this embodiment, as Figure 9 As shown, the locking assembly 41 includes a protective shell 413, a bracket 412, a roller 411, and a transmission pin 414; The transmission pin 414 is set perpendicular to the surface of the locking mounting plate 42, and the locking assembly 41 is fixedly connected to the detection assembly 5 through the transmission pin 414; The protective shell 413 is mounted on the locking mounting plate 42. One end of the bracket 412 is located inside the protective shell 413 and is fixedly connected to the transmission pin 414. The other end of the bracket 412 extends out of the protective shell 413 and is rotatably connected to the roller 411. The axis of the roller 411 is parallel to the surface of the locking mounting plate 42 and perpendicular to its radial direction. In this embodiment, by setting a transmission pin 414, the bracket 412 of the locking assembly 41 is fixedly connected to the detection assembly 5 through the transmission pin 414. When the locking gear disk 43 rotates, the involute groove 432 of the locking gear disk 43 will push the transmission pin 414 to move closer to the center of the locking gear disk 43 in the strip-shaped locking hole 421. In this way, the transmission pin 414 can simultaneously drive the detection assembly 5 and the bracket 412 and roller 411 of the locking assembly 41 to move synchronously closer to the small-diameter pipe fitting, so as to realize synchronous pressing to prevent floating and ultrasonic detection of wall thickness of the small-diameter pipe fitting.

[0049] In this embodiment, a buffer spring is also provided between the end of the bracket 412 away from the roller 411 and the protective shell 413, so that when the roller 411 comes into contact with the small-diameter pipe fitting, there is a certain buffering effect, avoiding damage to the small-diameter pipe fitting.

[0050] In this embodiment, as Figure 9 As shown, the locking assembly 41 also includes a pin sleeve 415 sleeved on the transmission pin 414 to achieve balanced wear. The pin sleeve 415 is movably connected to the transmission pin 414, and the length of the pin sleeve 415 is greater than the sum of the thicknesses of the locking mounting plate 42 and the locking gear plate 43. The transmission pin 414 has a step at one end near the detection component 5; The pin sleeve 415 has an annular protrusion at one end near the detection component 5 for abutting against the step and limiting its position.

[0051] In this embodiment, by setting a step on the transmission pin 414 and fitting a pin sleeve 415 on the transmission pin 414, the locking gear disc 43 rotates. As a result, when the involute groove 432 pushes the transmission pin 414 to move within the strip-shaped locking hole 421, the pin sleeve 415 can achieve uniform wear by only rotating. This avoids the problem of parameter errors in the top-pressure locking or wall thickness detection of small-diameter pipe fittings due to uneven wear at different positions of the transmission pin 414 after long-term use, which would otherwise result in uneven movement of the locking assembly 41 and the detection assembly 5 at both ends of the transmission pin 414.

[0052] In this embodiment, as Figures 5 to 8 As shown, the number of locking components 41 is an even number, specifically 4 sets; In the multiple locking assemblies 41, two parallel rollers 411 are distributed on the same plane along the travel direction of the small-diameter pipe fitting, and two adjacent rollers 411 are distributed on two different planes along the travel direction of the small-diameter pipe fitting, such as... Figure 9 As shown in this embodiment, since the pipe diameter of the small-diameter pipe fitting is small, if two adjacent rollers 411 are on the same plane along the travel direction of the small-diameter pipe fitting, interference will occur between the two adjacent rollers 411. Therefore, this embodiment uses a staggered spatial layout design where two adjacent rollers 411 are distributed on two planes along the travel direction of the small-diameter pipe fitting. This design can effectively tighten the small-diameter pipe fitting from multiple directions, ensuring that the central axis of the small-diameter pipe fitting is straight after being compressed.

[0053] In this embodiment, as Figure 6 As shown, the transmission assembly includes a transmission shaft 22 horizontally disposed on and rotatably connected to the locking mounting plate 42, and two transmission gears 24 mounted on the transmission shaft 22; The locking gear disk 43 includes a plurality of driven teeth 431 disposed on its peripheral wall. Two transmission gears 24 respectively mesh with the driven teeth 431 on the locking gear disk 43 of the two locking mechanisms 4. In this embodiment, by setting a single transmission shaft 22, the two transmission gears 24 can be driven to rotate, thereby driving the two locking gear disks 43 to rotate synchronously, thereby realizing that the locking components 41 of the two locking mechanisms 4 and the detection components 5 synchronously move inward along the radial direction of the locking gear disk 43 towards the small-diameter pipe fitting.

[0054] In this embodiment, as Figure 6 , Figure 7 as well as Figure 10 As shown, the top of the locking mounting plate 42 is also provided with a mounting part 422, and the top of the mounting part 422 is provided with a mounting groove 423 for mounting a bearing. The transmission shaft 22 is mounted in the mounting groove 423 of the locking mounting plate 42 through the bearing, so that after the transmission gear 24 is installed on the transmission shaft 22, the top of the gear disk 43 can be directly locked and meshed with it.

[0055] In this embodiment, a transmission worm gear 23 is also provided on the transmission shaft 22; It also includes a drive assembly 21 for driving the drive shaft 22 to rotate; The drive assembly 21 includes a drive worm 213 that is connected to the transmission worm gear 23, a drive motor 211, and a drive handwheel 212. The power output ends of the drive motor 211 and the drive handwheel 212 are both connected to the transmission worm.

[0056] The drive component 21 in this embodiment includes both a drive motor 211 and a drive handwheel 212, which can flexibly switch the drive mode and improve adaptability. In some embodiments, either the drive motor 211 or the drive handwheel 212 can be selected.

[0057] In this embodiment, an encoder is provided at the end of the drive shaft 22 away from the drive assembly 21, which facilitates the detection and recording of the number of rotations of the drive shaft 22. At the same time, it also makes it easier for the operator to control the number of rotations and the rotation angle of the drive handwheel 212 when driving, so as to avoid excessive compression of small-diameter pipe fittings and damage.

[0058] In this embodiment, as Figure 5 and Figure 6 As shown, it also includes a disc housing assembly, which includes a first disc housing 31 and a second disc housing 32 arranged side by side between the two locking mechanisms 4, as well as a detection channel tube 33 and a connecting rod 34; A sealing ring 35 is provided between the first disc shell 31 and the second disc shell 32, and the first disc shell 31 and the second disc shell 32 are respectively fixedly connected to the locking mounting discs 42 of the two locking mechanisms 4, and the locking gear discs 43 of the two locking mechanisms 4 are respectively located inside the first disc shell 31 and the second disc shell 32. The connecting rod 34 passes through the first disc shell 31 and the second disc shell 32, and its two ends are respectively fixedly connected to the locking mounting discs 42 of the two locking mechanisms 4. The detection channel tube 33 is disposed through the first disc shell 31 and the second disc shell 32. The two ends of the detection channel tube 33 are respectively sealed and fixedly connected to the locking mounting discs 42 of the two locking mechanisms 4. The detection channel tube 33 is also provided with a detection port 331 that matches the position of the detection component 5.

[0059] In this embodiment, by setting up a disc housing assembly, the detection assembly 5 and the locking gear disc 43 can be protected to a certain extent. The disc housing assembly includes a first disc housing 31 and a second disc housing 32, so that the locking gear discs 43 of the two locking mechanisms 4 can be isolated, avoiding the locking gear discs 43 from being soaked in water for a long time.

[0060] In this embodiment, a partition (not shown in the figure) is also provided inside the first disc shell 31, so that the detection component 5 and the locking gear disc 43 are separated by the partition. The partition is also provided with a strip hole corresponding to the position, shape and size of the strip locking hole 421, so as to avoid affecting the movement of the transmission pin 414. That is, in this embodiment, the two locking mounting discs 42, the first disc shell 31 and the second disc shell 32 actually form three spaces. The two locking gear discs 43 and the detection component 5 each occupy one space. Only the middle space has a large amount of clean water, which is convenient for the detection component 5 to perform detection. The space where the locking gear disc 43 is located is relatively closed, which plays a certain role in waterproofing.

[0061] In this embodiment, as Figure 4 As shown, it also includes the main body of the water tank 1; The transmission assembly, locking mechanism 4, several detection components 5, and disc assembly are all located inside the water tank body 1. The water tank body 1 has through holes on both sides for small-diameter pipe fittings to pass through. The central axis of the through hole coincides with the rotational symmetry axis of the first disc shell 31, the second disc shell 32, the locking mounting disc 42, the locking gear disc 43, and the multiple involute grooves 432. The bottom of the first disc shell 31 and the second disc shell 32 are also provided with drainage ports to facilitate drainage of the space where the locking gear disc 43 is located, and to prevent long-term water accumulation in the first disc shell 31 and the second disc shell 32.

[0062] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A water-covered probe detection assembly (5), characterized in that, Includes a probe housing (51) and a probe body (54) disposed inside the probe housing (51), and a baffle plate (52) fixed to the bottom of the probe housing (51). The probe housing (51) is provided with a water passage hole (513) and a water passage groove (511) located at the bottom of the probe housing (51). The water passage groove (511) is connected to the water passage hole (513). The baffle plate (52) is located directly below the water passage hole (513) and the water passage groove (511). The water passage hole (513), the baffle plate (52), and the water passage groove (511) form an L-shaped flow channel for continuously supplying water to the bottom output end of the probe body (54).

2. The water-covered probe detection assembly (5) according to claim 1, characterized in that, The water passage groove (511) includes a funnel-shaped expansion section and a circular exposed section. The exposed section is located directly below the output end of the probe body (54). The end of the expansion section away from the exposed end has a smaller width and is connected to the water passage hole (513). The bottom output end of the probe body (54) is also provided with an arched notch (542) located directly above the exposed section.

3. The water-covered probe detection assembly (5) according to claim 2, characterized in that, The water baffle (52) is also provided with a semi-circular clearance notch (521) on the side facing the water passage groove (511).

4. The water-covered probe detection assembly (5) according to claim 1, characterized in that, It also includes a locking bolt (53) that is threadedly connected to the probe housing (51), and the probe body (54) is locked and fixed inside the probe housing (51) by the locking bolt (53); The probe housing (51) is also provided with a limiting groove (512); The probe body (54) is also provided with a limiting rod (541) extending radially outward, and the limiting rod (541) is located in the limiting groove (512).

5. The water-covered probe detection assembly (5) according to claim 1, characterized in that, The probe housing (51) is also provided with a pin mounting hole (514) for mounting the transmission pin (414). It also includes a water inlet connector (55) installed at the water inlet (513).

6. A wall thickness measurement system for small-diameter pipe fittings, characterized in that, The water-covered probe detection assembly (5) according to any one of claims 1-5 also includes a transmission assembly and a locking mechanism (4) disposed in the water tank body (1). The detection components (5) are evenly distributed around the small-diameter pipe fitting along its travel direction. The locking mechanism (4) has two parts and is symmetrically distributed on both sides of several detection components (5); The locking mechanism (4) includes a locking gear disk (43) and a locking mounting disk (42) arranged in parallel, as well as a plurality of locking components (41). The locking gear disk (43) is connected to the power output end of the transmission component. The locking gear disk (43) is provided with a plurality of involute grooves (432) that are symmetrically distributed along its circumference. The locking mounting disk (42) is provided with a plurality of strip-shaped locking holes (421) that are evenly distributed along its circumference. The length direction of the strip-shaped locking holes (421) is parallel to the radial direction of the locking mounting disk (42). The locking components (41) of one or both locking mechanisms (4) are connected and fixed to the detection component (5) through the overlapping area of ​​the through-strip locking hole (421) and the involute groove (432).

7. The wall thickness measurement system for small-diameter pipe fittings according to claim 6, characterized in that, The locking assembly (41) includes a housing (413), a bracket (412), a roller (411), and a transmission pin (414). The transmission pin (414) is set perpendicular to the surface of the locking mounting plate (42), and the locking assembly (41) is fixedly connected to the detection assembly (5) through the transmission pin (414); The protective shell (413) is installed on the locking mounting plate (42). One end of the bracket (412) is located inside the protective shell (413) and is fixedly connected to the transmission pin (414). The other end of the bracket (412) extends out of the protective shell (413) and is rotatably connected to the roller (411). The axis of the roller (411) is parallel to the surface of the locking mounting plate (42) and perpendicular to its radial direction.

8. The wall thickness measurement system for small-diameter pipe fittings according to claim 7, characterized in that, The locking assembly (41) further includes a pin sleeve (415) sleeved on the transmission pin (414) for achieving balanced wear. The pin sleeve (415) is movably connected to the transmission pin (414), and the length of the pin sleeve (415) is greater than the sum of the thicknesses of the locking mounting plate (42) and the locking gear plate (43). The transmission pin (414) has a step at one end near the detection component (5); The pin sleeve (415) has an annular protrusion at one end near the detection component (5) for abutting against the step and limiting its position.

9. The wall thickness measurement system for small-diameter pipe fittings according to claim 6, characterized in that, The transmission assembly includes a transmission shaft (22) that is horizontally disposed on and rotatably connected to the locking mounting plate (42), and two transmission gears (24) mounted on the transmission shaft (22). The locking gear disk (43) includes a number of driven teeth (431) provided on its peripheral wall, and the two transmission gears (24) respectively mesh with the driven teeth (431) on the locking gear disk (43) of the two locking mechanisms (4).

10. The wall thickness measurement system for small-diameter pipe fittings according to claim 6, characterized in that, It also includes a housing assembly, which includes a first housing (31) and a second housing (32) arranged side by side between the two locking mechanisms (4), as well as a detection channel tube (33) and a connecting rod (34). A sealing ring (35) is provided between the first disc shell (31) and the second disc shell (32), and the first disc shell (31) and the second disc shell (32) are respectively fixedly connected to the locking mounting discs (42) of the two locking mechanisms (4), and the locking gear discs (43) of the two locking mechanisms (4) are respectively located inside the first disc shell (31) and the second disc shell (32); The connecting rod (34) is provided through the first disc shell (31) and the second disc shell (32), and its two ends are respectively fixedly connected to the locking mounting discs (42) of the two locking mechanisms (4); The detection channel tube (33) is installed through the first disk shell (31) and the second disk shell (32). The two ends of the detection channel tube (33) are respectively sealed and fixedly connected to the locking mounting disks (42) of the two locking mechanisms (4). The detection channel tube (33) is also provided with a detection port (331) that matches the position of the detection component (5).

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