Calibration equipment for lossless measuring instrument and use method

Abstract

The invention discloses calibration equipment for a lossless measuring instrument and a using method, the calibration equipment comprises a shell, an inner cavity of the shell is movably connected with a fixing frame, a calibration equipment element is fixedly mounted at the middle end of the inner cavity of the fixing frame, and a control panel is fixedly mounted at the middle end of the front surface of the fixing frame; a connecting port is fixedly installed at the right end of the back face of the fixing frame, limiting clamping holes are formed in the periphery of the lower end of an inner cavity of the fixing frame, and a limiting clamping plate is movably connected between the surfaces of the two limiting clamping holes. Through the arrangement of the rotating sleeve, the rotating rod, the first bevel gear, the second bevel gear, a two-way screw rod, a movable toothed plate, a circular gear, a U-shaped rotating frame and a protective baffle, personnel can conveniently and effectively protect the side faces of a control panel and a connecting port after the calibration equipment is used; and the control panel and the connecting port are prevented from being damaged due to collision or water inflow in the moving, carrying or placing process.

Description

Technical Field

[0001] The present invention relates to the technical field of instrument calibration, and in particular to a calibration device for a non-destructive measuring instrument and a use method thereof. Background Art

[0002] Ultrasonic flaw detector is a non-destructive measuring instrument that can detect, locate, evaluate and diagnose various defects inside workpieces quickly, conveniently, non-destructively and accurately. It can be used in laboratories as well as on-site projects. It is widely used in boilers, pressure vessels, aerospace, aviation, electric power, petroleum, chemical industry, offshore oil, pipelines, military industry, shipbuilding, automobiles, machinery manufacturing, metallurgy, metal processing industry, steel structure, railway transportation, nuclear power and colleges and universities. At present, ultrasonic flaw detectors often need to be calibrated after being used for a short period of time.

[0003] For example, the Chinese utility model provides "an ultrasonic flaw detector calibration device", announcement number: CN219084840U, which includes a body, a front control panel and a rear control panel are respectively provided at both ends of the body, and mounting blocks are fixedly installed on opposite sides of the front control panel, mounting grooves are provided on both sides of the body, and the mounting blocks are plugged into the mounting grooves, and a locking structure is provided on one side of the body located in the mounting groove, and a supporting structure is provided on the top of the body, and the locking structure includes a groove, a through hole, a rod, a placement groove, a spring, and a connecting block. The groove is provided on one side of the mounting block, and through holes are provided on both sides of the body. The rod is slidably installed in the through hole. The ultrasonic flaw detector calibration device described in this application has a simple structure, is easy to use, has strong connectivity, is easy to install and disassemble, is convenient for later maintenance, and enhances practicality.

[0004] Although the ultrasonic flaw detector calibration device in the above technology can enable personnel to disassemble the front control panel and the rear control panel during the later maintenance process, since most electrical components are often installed inside the machine body, when personnel conduct fault point inspection and disassemble and replace the electrical components inside the machine body through both sides, the internal operable space is often small, which greatly increases the difficulty of personnel's maintenance work and cannot meet the personnel's usage needs. Summary of the invention

[0005] The purpose of the present invention is to provide a calibration device for non-destructive measuring instruments and a method of use, which has the advantage of being able to facilitate personnel to open the device casing during later maintenance operations, thereby greatly facilitating personnel's inspection and maintenance operations.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a calibration device for non-destructive measuring instruments, comprising a shell, an inner cavity of the shell being movably connected with a fixed frame, a calibration device element being fixedly installed at the middle end of the inner cavity of the fixed frame, a control panel being fixedly installed at the middle end of the front surface of the fixed frame, a connection port being fixedly installed at the right end of the back side of the fixed frame, limit clamping holes being provided around the lower end of the inner cavity of the fixed frame, a limit clamping plate being movably connected between the surfaces of the two limit clamping holes, both ends of the top of the shell being movably connected with a U-shaped rotating frame through bearings, a circular gear being fixedly installed at the middle end of the U-shaped rotating frame, a protective baffle being fixedly connected to the upper end of the U-shaped rotating frame, a support frame being fixedly connected at the middle end of the top of the inner cavity of the shell, and a The two-way screw, the middle end of the two-way screw, is fixedly installed with a second bevel gear, and the two-way screw, both ends of the two-way screw, are threadably connected to a movable tooth plate, and the movable tooth plate is meshed with a circular gear, and the upper end of the inner cavity of the shell is movably connected to a rotating shaft through a bearing. The two ends of the rotating shaft are fixedly connected to a winding shaft through a bearing. The bottom of the winding shaft is fixedly connected to a pull rope between the middle end of the limit clamping plate and the

[0007] As a preferred solution, a locking rod is fixedly connected to the left end of the top of the inner cavity of the shell, an air inlet hole is opened at the left end of the back of the fixed frame, an L-shaped clip is fixedly connected to the left end of the inner cavity of the fixed frame and in front of the air inlet hole, the number of the L-shaped clips is two, an air guide frame is movably connected between the surfaces of the two L-shaped clips and the left end of the inner cavity of the fixed frame, a locking hole is opened at the top of the air guide frame, and the bottom of the locking rod is movably connected to the surface of the locking hole.

[0008] As a preferred solution, a heat dissipation fan is fixedly installed at the middle end of the air guide frame, and a dust filter is fixedly installed in the inner cavity of the air guide frame.

[0009] As a preferred solution, a heat dissipation hole is opened at the upper end of the front surface of the fixing frame, rubber supports are fixedly connected around the bottom of the outer surface of the fixing frame, and a handle is fixedly connected to the middle end of the top of the outer surface of the shell.

[0010] As a preferred embodiment, a first vertical plate is fixedly connected to the right end of the top of the inner cavity of the shell, and the lower end of the first vertical plate is movably connected to the surface of the rotating rod through a bearing. A second vertical plate is fixedly connected to the right end of the top of the inner cavity of the shell and located to the right of the first vertical plate, and the lower end of the second vertical plate is movably connected to the surface of the rotating rod through a bearing. The right side of the second vertical plate is fixedly connected to a limit rod, and the upper end of the movable guide rod is movably connected to the surface of the limit rod. A first spring is fixedly connected between the upper end of the left side of the movable guide rod and the right side of the second vertical plate.

[0011] As a preferred embodiment, a limiting groove is opened at the right end of the bottom of the rotating rod, the bottom of the inner cavity of the rotating sleeve is fixedly connected to a limiting block, the surface of the limiting block is movably connected to the surface of the limiting groove, and the right side of the rotating sleeve is threadedly connected to a limiting bolt.

[0012] As a preferred solution, a support plate is fixedly connected to the middle end of the bottom of the outer surface of the support frame, and the middle end of the support plate is movably connected to the middle end of the rotating shaft through a bearing.

[0013] As a preferred solution, the lower ends of both sides of the inner cavity of the shell are movably connected to guide wheels through bearings, the lower end of the pull rope is movably connected to the surface of the guide wheel, the two ends of the two limit clamps on the side away from each other are fixedly connected to a second spring, the surface of the second spring is fixedly connected to the lower end of the inner cavity of the shell, the two ends of the limit clamps are movably connected to support slide rods, and the surface of the support slide rod is fixedly connected to the lower end of the inner cavity of the shell.

[0014] As a preferred solution, both sides of the outer surface of the support frame are fixedly connected with guide cross bars, and the surface of the movable tooth plate is movably connected to the surface of the guide cross bars.

[0015] A method for using a calibration device for a non-destructive measuring instrument, the method comprising the following steps: A. First, the connection port facilitates the connection between the ultrasonic flaw detector and the instrument through the cable during use, and enables the personnel to control the calibration equipment components through the control panel according to the calibration requirements, so as to calibrate the ultrasonic flaw detector; B. When the calibration device needs to be moved, carried or placed after use, the rotating sleeve can be operated to rotate to drive the rotating rod and the first bevel gear to rotate, and the rotation of the first bevel gear can drive the second bevel gear and the bidirectional screw to rotate, and drive the two sets of moving tooth plates to move closer to each other. When the moving tooth plates move, the circular gears, the U-shaped rotating frame and the protective baffle can be driven to rotate until the protective baffle can be tightly attached to the sides of the fixed frame and the housing under the action of rotation, so as to effectively protect the sides of the control panel and the connection port, and avoid damage to the control panel and the connection port due to collision or water ingress during the process of moving, carrying or placing; C. When the calibration equipment fails and needs to be repaired and maintained, by pushing the rotating sleeve to move along the surface of the rotating rod, the movable guide rod can be driven to move. The movement of the movable guide rod can push the rotating drum to rotate through the spiral guide groove. The rotation of the rotating drum can drive the rotating shaft and the reel to rotate. While the reel rotates, the pull rope can be reeled in, and the limit clamping plate can be moved by pulling the pull rope until the limit clamping plate can be detached from the surface of the limit clamping hole, and the limit between the outer shell and the fixed frame can be released. Then the personnel can remove the outer shell from the top of the fixed frame, which effectively increases the operable space around the calibration equipment components to facilitate personnel to perform maintenance operations.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a rotating sleeve, a rotating rod, a first bevel gear, a second bevel gear, a bidirectional screw, a movable tooth plate, a circular gear, a U-shaped rotating frame and a protective baffle, so that it is convenient for personnel to effectively protect the sides of the control panel and the connection port after the calibration equipment is used, so as to avoid damage to the control panel and the connection port due to collision or water ingress during the process of moving, carrying or placing, and effectively improves the overall safety of use. At the same time, through the provision of the rotating sleeve, the rotating rod, the movable guide rod, the spiral guide groove, the rotating drum, the rotating shaft, the reel, the pull rope, the limit clamping plate and the limit clamping hole, when the calibration equipment fails and needs to be repaired and maintained, the personnel can quickly disassemble the outer shell and the fixed frame, so that the personnel can troubleshoot and repair and maintain the components of the calibration equipment. The overall operation is convenient and fast, which brings great convenience to the personnel.

[0017] 2. The present invention provides an air inlet, an air guide frame and a heat dissipation fan. Under the action of the heat dissipation fan, the air outside can be driven to blow rapidly into the fixed frame and the housing through the air guide frame and the air inlet, so that the rapidly blown air can carry away the heat generated by the calibration equipment components during operation, thereby avoiding the normal operation of the calibration equipment components being affected by excessive temperature during use. Furthermore, by providing a dust filter, the dust in the air flowing through the air guide frame can be effectively filtered, thereby reducing the probability of dust adhering to the surface of the calibration equipment components, thereby further ensuring the calibration. The quasi-equipment components can operate stably. At the same time, through the settings of the L-shaped card plate, the locking hole and the locking rod, the air guide frame and the fixed frame can be effectively locked and limited to avoid the air guide frame from shifting and shaking along the surface of the fixed frame during use. When the dust filter needs to be cleaned later, the locking rod will be driven to detach from the surface of the locking hole when the personnel disassemble the outer shell, and the limit of the air guide frame can be released. Then the personnel can slide the air guide frame and remove it from the surface of the L-shaped card plate, which greatly facilitates the cleaning and maintenance operations of the personnel.

[0018] 3. The present invention is conducive to the heat dissipation between the shell and the fixed frame to the outside through the provision of the heat dissipation holes. The purpose of supporting the bottom of the fixed frame is achieved through the provision of the rubber support. The purpose of supporting the rotating rod is achieved through the provision of the first vertical plate and the second vertical plate, so as to prevent the rotating rod from tilting due to the force. The provision of the limit rod and the first spring can effectively guide the movable guide rod to prevent the movable guide rod from tilting. At the same time, the first spring can be pressed during the process of the movable guide rod moving to the left, so that the first spring can generate tension on the movable guide rod, so that the first spring can subsequently push the movable guide rod to move and reset to the right side. The provision of the limit groove and the limit block achieves the purpose of effectively limiting the rotating rod and the rotating sleeve, ensuring that the rotating rod and the rotating sleeve can keep rotating. The provision of the limit bolt is convenient for personnel to operate the rotating rod during non-maintenance operations. The movable sleeve and the rotating rod are limited to prevent personnel from accidentally pushing the rotating sleeve during use, which may cause loosening of the outer shell and the fixed frame. The purpose of supporting the middle end of the rotating shaft is achieved by setting the support plate, and the rotating shaft is prevented from tilting due to force. The purpose of guiding the pull rope is achieved by setting the guide wheel, so that the pull rope can pull the limit card to move during the movement. The limit card can be supported and guided by the setting of the supporting slide bar and the second spring, so that the limit card can be prevented from tilting during the movement. At the same time, the second spring can be pressed during the movement of the limit card, so that the second spring can generate tension on the limit card, so that the second spring can subsequently push the limit card to move and reset to the right side. The purpose of guiding the moving tooth plate is achieved by setting the guide cross bar, so that the moving tooth plate can be prevented from tilting during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereogram of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the right side of the housing of the present invention; Figure 3 This is a schematic diagram of the front cross-sectional structure of the housing of the present invention; Figure 4 This is a front cross-sectional structural schematic diagram of the rotating sleeve of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the housing of the present invention when viewed from above; Figure 6 This is a schematic diagram of the support frame structure of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the left side of the air guide frame of the present invention; Figure 8 For the present invention Figure 7 A partial enlarged view of point A in the figure.

[0020] In the figure: 1, fixed frame; 2, rubber support; 3, control panel; 4, housing; 5, U-shaped rotating frame; 6, heat dissipation hole; 7, protective baffle; 8, support frame; 9, guide cross bar; 10, circular gear; 11, movable tooth plate; 12, second bevel gear; 13, two-way screw; 14, cooling fan; 15, air guide frame; 16, L-shaped card plate; 17, limit card plate; 18, support plate; 19, guide wheel; 20, pull rope; 21, rotating shaft; 22, reel; 23, first bevel gear shaped gear; 24, first vertical plate; 25, rotating rod; 26, second vertical plate; 27, rotating sleeve; 28, rotating drum; 29, spiral guide groove; 30, first spring; 31, limiting rod; 32, moving guide rod; 33, limiting groove; 34, limiting block; 35, limiting bolt; 36, limiting card hole; 37, supporting slide rod; 38, second spring; 39, air inlet; 40, connecting port; 41, locking rod; 42, dust filter; 43, locking hole; 44, calibration equipment component. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0023] Embodiment 1: See also Figure 1-Figure 8 As shown, the present invention provides a calibration device for non-destructive measuring instruments, including a shell 4, an inner cavity of the shell 4 is movably connected to a fixed frame 1, a calibration device element 44 is fixedly installed at the middle end of the inner cavity of the fixed frame 1, a control panel 3 is fixedly installed at the middle end of the front surface of the fixed frame 1, a connection port 40 is fixedly installed at the right end of the back of the fixed frame 1, and limit clamping holes 36 are provided around the lower end of the inner cavity of the fixed frame 1, and a limit clamping plate 17 is movably connected between the surfaces of the two limit clamping holes 36, both ends of the top of the shell 4 are movably connected to a U-shaped rotating frame 5 through bearings, a circular gear 10 is fixedly installed at the middle end of the U-shaped rotating frame 5, and a protective baffle 7 is fixedly connected to the upper end of the U-shaped rotating frame 5, a support frame 8 is fixedly connected to the middle end of the inner cavity of the shell 4, a bidirectional screw 13 is movably connected to the middle end of the support frame 8 through a bearing, and the middle end of the bidirectional screw 13 is fixedly installed A second bevel gear 12 is provided, and both ends of the bidirectional screw 13 are threadedly connected with a movable tooth plate 11, and the movable tooth plate 11 is meshed with the circular gear 10. The upper end of the inner cavity of the shell 4 is movably connected with a rotating shaft 21 through a bearing, and both ends of the rotating shaft 21 are fixedly connected with a reel 22, and a pull rope 20 is fixedly connected between the bottom of the reel 22 and the middle end of the limiting clamping plate 17, and the right end of the rotating shaft 21 is fixedly connected with a rotating drum 28, and a spiral guide groove 29 is provided on the surface of the rotating drum 28. The upper end of the right side of the shell 4 and above the rotating shaft 21 are movably connected with a rotating sleeve 27, and the left end of the outer surface of the rotating sleeve 27 is movably connected with a movable guide rod 32 through a bearing and the right end of the spiral guide groove 29. The inner cavity of the rotating sleeve 27 is movably connected with a rotating rod 25, and the left side of the rotating rod 25 is fixedly installed with a first bevel gear 23, and the first bevel gear 23 is meshed with the second bevel gear 12.

[0024] In the present technical solution, by arranging the rotating sleeve 27, the rotating rod 25, the first bevel gear 23, the second bevel gear 12, the bidirectional screw 13, the movable tooth plate 11, the circular gear 10, the U-shaped rotating frame 5 and the protective baffle 7, it is convenient for personnel to effectively protect the sides of the control panel 3 and the connection port 40 after the calibration equipment is used, so as to avoid damage to the control panel 3 and the connection port 40 due to collision or water ingress during the process of moving, carrying or placing, thereby effectively improving the overall safety of use. At the same time, by arranging the rotating sleeve 27, the rotating rod 25, the movable guide rod 32, the spiral guide groove 29, the rotating drum 28, the rotating shaft 21, the reel 22, the pull rope 20, the limit clamping plate 17 and the limit clamping hole 36, personnel can quickly disassemble the outer shell 4 and the fixed frame 1 when the calibration equipment fails and needs to be repaired and maintained, so as to facilitate personnel to troubleshoot and repair and maintain the calibration equipment components 44. The overall operation is convenient and fast, which brings great convenience to personnel.

[0025] Embodiment 2: Based on the first embodiment, the present invention is as follows Figure 2 , Figure 7 and Figure 8 As shown, a locking rod 41 is fixedly connected to the left end of the top of the inner cavity of the shell 4, an air inlet hole 39 is opened at the left end of the back of the fixed frame 1, an L-shaped card plate 16 is fixedly connected to the left end of the inner cavity of the fixed frame 1 and located in front of the air inlet hole 39, the number of the L-shaped card plates 16 is two, and an air guide frame 15 is movably connected between the surfaces of the two L-shaped card plates 16 and the left end of the inner cavity of the fixed frame 1, a locking hole 43 is opened at the top of the air guide frame 15, and the bottom of the locking rod 41 is movably connected to the surface of the locking hole 43, a cooling fan 14 is fixedly installed at the middle end of the air guide frame 15, and a dust filter 42 is fixedly installed in the inner cavity of the air guide frame 15.

[0026] In the present technical solution, by setting the air inlet hole 39, the air guide frame 15 and the heat dissipation fan 14, the heat dissipation fan 14 can drive the outside air to be blown quickly into the fixed frame 1 and the shell 4 through the air guide frame 15 and the air inlet hole 39 under the action of the operation of the heat dissipation fan 14, so that the quickly blown air can carry away the heat generated by the calibration device element 44 when it is working, thereby avoiding the normal operation of the calibration device element 44 due to excessive temperature during use, and by setting the dust filter 42, the dust in the air flowing through the inside of the air guide frame 15 can be effectively filtered, reducing the probability of dust adhering to the surface of the calibration device element 44, further ensuring the calibration The quasi-equipment element 44 can operate stably. At the same time, through the setting of the L-shaped card plate 16, the locking hole 43 and the locking rod 41, the air guide frame 15 and the fixed frame 1 can be effectively locked and limited to avoid the air guide frame 15 from shifting and shaking along the surface of the fixed frame 1 during use. When the dust filter 42 needs to be cleaned later, the locking rod 41 will be driven to detach from the surface of the locking hole 43 when the personnel disassemble the outer shell 4, and the limit of the air guide frame 15 can be released. Then the personnel can slide the air guide frame 15 and remove it from the surface of the L-shaped card plate 16, which greatly facilitates the cleaning and maintenance operations of the personnel.

[0027] Embodiment three: Based on the first embodiment, the present invention is as follows Figure 1-Figure 7As shown, a heat dissipation hole 6 is provided at the upper end of the front surface of the fixed frame 1, rubber bearings 2 are fixedly connected to the four sides of the bottom of the outer surface of the fixed frame 1, a handle is fixedly connected to the middle end of the top of the outer surface of the shell 4, a first vertical plate 24 is fixedly connected to the right end of the top of the inner cavity of the shell 4, and the lower end of the first vertical plate 24 is movably connected to the surface of the rotating rod 25 through a bearing, a second vertical plate 26 is fixedly connected to the right end of the top of the inner cavity of the shell 4 and located to the right of the first vertical plate 24, and the lower end of the second vertical plate 26 is movably connected to the surface of the rotating rod 25 through a bearing, a limiting rod 31 is fixedly connected to the right side of the second vertical plate 26, and the upper end of the movable guide rod 32 is movably connected to the surface of the limiting rod 31, a first spring 30 is fixedly connected between the upper end of the left side of the movable guide rod 32 and the right side of the second vertical plate 26, a limiting groove 33 is provided at the right end of the bottom of the rotating rod 25, and the bottom of the inner cavity of the rotating sleeve 27 is fixedly connected to A limiting block 34, the surface of which is movably connected to the surface of the limiting groove 33, the right side of the rotating sleeve 27 is threadedly connected to a limiting bolt 35, the middle end of the bottom of the outer surface of the support frame 8 is fixedly connected to a support plate 18, the middle end of the support plate 18 is movably connected to the middle end of the rotating shaft 21 through a bearing, the lower ends of both sides of the inner cavity of the shell 4 are movably connected to guide wheels 19 through bearings, the lower end of the pull rope 20 is movably connected to the surface of the guide wheel 19, the two ends of the two limiting clamps 17 away from each other are fixedly connected to a second spring 38, the surface of the second spring 38 is fixedly connected to the lower end of the inner cavity of the shell 4, the two ends of the limiting clamps 17 are movably connected to a supporting slide bar 37, the surface of the supporting slide bar 37 is fixedly connected to the lower end of the inner cavity of the shell 4, the two sides of the outer surface of the support frame 8 are fixedly connected to guide cross bars 9, and the surface of the movable tooth plate 11 is movably connected to the surface of the guide cross bar 9.

[0028] In the present technical solution, the heat dissipation holes 6 are provided to facilitate the temperature between the housing 4 and the fixed frame 1 to be dissipated to the outside. The rubber support 2 is provided to achieve the purpose of supporting the bottom of the fixed frame 1. The first vertical plate 24 and the second vertical plate 26 are provided to achieve the purpose of supporting the rotating rod 25 to prevent the rotating rod 25 from tilting due to the force. The limiting rod 31 and the first spring 30 are provided to effectively guide the movable guide rod 32 to prevent the movable guide rod 32 from tilting. When the movable guide rod 32 moves to the left, the first spring 30 can be pressed, so that the first spring 30 can generate tension on the movable guide rod 32, so that the first spring 30 can subsequently push the movable guide rod 32 to move and reset to the right. The limiting groove 34 and the limiting block 33 are provided to achieve the purpose of effectively limiting the rotating rod 25 and the rotating sleeve 27, ensuring that the rotating rod 25 and the rotating sleeve 27 can keep rotating. The limiting bolt 35 is provided to facilitate personnel to perform non-maintenance operations. The rotating sleeve 27 and the rotating rod 25 are limited to prevent the personnel from accidentally pushing the rotating sleeve 27 during use, which may cause the housing 4 and the fixed frame 1 to loosen. The support plate 18 is provided to support the middle end of the rotating shaft 21, so that the rotating shaft 21 is prevented from tilting due to the force. The guide wheel 19 is provided to guide the pull rope 20, so that the pull rope 20 can pull the limit card plate 17 to move during the movement. The support slide bar 37 and the second spring 38 are provided to support and guide the limit card plate 17 to prevent the limit card plate 17 from tilting during the movement. At the same time, the second spring 38 can be pressed during the movement of the limit card plate 17, so that the second spring 38 can generate tension on the limit card plate 17, so that the second spring 38 can push the limit card plate 17 to move and reset to the right side later. The guide cross bar 9 is provided to guide the movable tooth plate 11 to prevent the movable tooth plate 11 from tilting during the movement.

[0029] Embodiment 4: A method for using a calibration device for a non-destructive measuring instrument, the method comprising the following steps: A. First, under the function of the connection port 40, it is convenient for personnel to connect to the ultrasonic flaw detector through a cable during use, and at the same time, the personnel can control the calibration device element 44 through the control panel 3 according to the calibration requirements, so as to calibrate the ultrasonic flaw detector; B. When the calibration device needs to be moved, carried or placed after use, the rotating sleeve 27 can be operated to rotate to drive the rotating rod 25 and the first bevel gear 23 to rotate. The rotation of the first bevel gear 23 can drive the second bevel gear 12 and the bidirectional screw 13 to rotate, and drive the two sets of moving tooth plates 11 to move toward the side close to each other. When the moving tooth plates 11 move, the circular gear 10, the U-shaped rotating frame 5 and the protective baffle 7 can be driven to rotate until the protective baffle 7 can be tightly attached to the sides of the fixed frame 1 and the housing 4 under the action of rotation, so as to effectively protect the sides of the control panel 3 and the connection port 40, and avoid damage to the control panel 3 and the connection port 40 due to collision or water ingress during the process of moving, carrying or placing. C. When the calibration equipment fails and needs to be repaired and maintained, by pushing the rotating sleeve 27 to move along the surface of the rotating rod 25, the movable guide rod 32 can be driven to move. The movement of the movable guide rod 32 can push the rotating drum 28 to rotate through the spiral guide groove 29. The rotation of the rotating drum 28 can drive the rotating shaft 21 and the reel 22 to rotate. While the reel 22 rotates, the pull rope 20 can be reeled in, and the limit clamping plate 17 can be moved by pulling the pull rope 20 until the limit clamping plate 17 can be detached from the surface of the limit clamping hole 36, and the limit between the outer shell 4 and the fixed frame 1 can be released. Then, the personnel can remove the outer shell 4 from the top of the fixed frame 1, which effectively increases the operable space around the calibration equipment component 44 to facilitate personnel to perform maintenance operations.

[0030] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0031] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A calibration device for a non-destructive measuring instrument, comprising a housing (4), characterized in that: The inner cavity of the shell (4) is movably connected to a fixing frame (1), a calibration device element (44) is fixedly installed at the middle end of the inner cavity of the fixing frame (1), a control panel (3) is fixedly installed at the middle end of the front surface of the fixing frame (1), a connection port (40) is fixedly installed at the right end of the back surface of the fixing frame (1), and limiting clamping holes (36) are provided around the lower end of the inner cavity of the fixing frame (1), and a limiting clamping plate (17) is movably connected between the surfaces of the two limiting clamping holes (36). The shell ( 4) Both ends of the top are movably connected to a U-shaped rotating frame (5) via bearings, a circular gear (10) is fixedly mounted on the middle end of the U-shaped rotating frame (5), a protective baffle (7) is fixedly mounted on the upper end of the U-shaped rotating frame (5), a support frame (8) is fixedly mounted on the middle end of the top of the inner cavity of the housing (4), a bidirectional screw (13) is movably connected to the middle end of the support frame (8) via bearings, a second bevel gear (12) is fixedly mounted on the middle end of the bidirectional screw (13), and the bidirectional screw ( The two ends of the housing (4) are threadedly connected to a movable tooth plate (11), the movable tooth plate (11) meshes with the circular gear (10), the upper end of the inner cavity of the housing (4) is movably connected to a rotating shaft (21) through a bearing, the two ends of the rotating shaft (21) are fixedly connected to a reel (22), a pull rope (20) is fixedly connected between the bottom of the reel (22) and the middle end of the limit clamping plate (17), the right end of the rotating shaft (21) is fixedly connected to a rotating drum (28), and the surface of the rotating drum (28) is provided with A spiral guide groove (29), a rotating sleeve (27) is movably connected to the upper end of the right side of the housing (4) and located above the rotating shaft (21), a movable guide rod (32) is movably connected between the left end of the outer surface of the rotating sleeve (27) and the right end of the spiral guide groove (29) via a bearing, a rotating rod (25) is movably connected to the inner cavity of the rotating sleeve (27), a first bevel gear (23) is fixedly mounted on the left side of the rotating rod (25), and the first bevel gear (23) is meshed with the second bevel gear (12).

2. The calibration device for non-destructive measuring instruments according to claim 1, characterized in that: A locking rod (41) is fixedly connected to the left end of the top of the inner cavity of the shell (4); an air inlet hole (39) is provided at the left end of the back of the fixing frame (1); an L-shaped card plate (16) is fixedly connected to the left end of the inner cavity of the fixing frame (1) and located in front of the air inlet hole (39); the number of the L-shaped card plates (16) is two; an air guide frame (15) is movably connected between the surfaces of the two L-shaped card plates (16) and the left end of the inner cavity of the fixing frame (1); a locking hole (43) is provided at the top of the air guide frame (15); and the bottom of the locking rod (41) is movably connected to the surface of the locking hole (43).

3. The calibration device for non-destructive measuring instruments according to claim 2, characterized in that: A heat dissipation fan (14) is fixedly mounted on the middle end of the air guide frame (15), and a dust filter (42) is fixedly mounted on the inner cavity of the air guide frame (15).

4. The calibration device for non-destructive measuring instruments according to claim 1, characterized in that: A heat dissipation hole (6) is provided at the upper end of the front surface of the fixing frame (1), rubber supports (2) are fixedly connected to the four sides of the bottom of the outer surface of the fixing frame (1), and a handle is fixedly connected to the middle end of the top of the outer surface of the shell (4).

5. The calibration device for non-destructive measuring instruments according to claim 1, characterized in that: A first vertical plate (24) is fixedly connected to the right end of the top of the inner cavity of the shell (4), and the lower end of the first vertical plate (24) is movably connected to the surface of the rotating rod (25) through a bearing. A second vertical plate (26) is fixedly connected to the right end of the top of the inner cavity of the shell (4) and located to the right of the first vertical plate (24), and the lower end of the second vertical plate (26) is movably connected to the surface of the rotating rod (25) through a bearing. The right side of the second vertical plate (26) is fixedly connected to a limiting rod (31), and the upper end of the movable guide rod (32) is movably connected to the surface of the limiting rod (31). A first spring (30) is fixedly connected between the upper end of the left side of the movable guide rod (32) and the right side of the second vertical plate (26).

6. The calibration device for non-destructive measuring instruments according to claim 1, characterized in that: A limiting groove (33) is provided at the right end of the bottom of the rotating rod (25); a limiting block (34) is fixedly connected to the bottom of the inner cavity of the rotating sleeve (27); a surface of the limiting block (34) is movably connected to the surface of the limiting groove (33); and a limiting bolt (35) is threadedly connected to the right side of the rotating sleeve (27).

7. The calibration device for non-destructive measuring instruments according to claim 1, characterized in that: A support plate (18) is fixedly connected to the middle end of the bottom of the outer surface of the support frame (8), and the middle end of the support plate (18) is movably connected to the middle end of the rotating shaft (21) via a bearing.

8. The calibration device for non-destructive measuring instruments according to claim 1, characterized in that: The lower ends of both sides of the inner cavity of the shell (4) are movably connected to guide wheels (19) through bearings, and the lower end of the pull rope (20) is movably connected to the surface of the guide wheel (19). The two ends of the two limit clamps (17) on the side away from each other are fixedly connected to a second spring (38), and the surface of the second spring (38) is fixedly connected to the lower end of the inner cavity of the shell (4). The two ends of the limit clamps (17) are movably connected to a support slide rod (37), and the surface of the support slide rod (37) is fixedly connected to the lower end of the inner cavity of the shell (4).

9. The calibration device for non-destructive measuring instruments according to claim 1, characterized in that: Both sides of the outer surface of the support frame (8) are fixedly connected to guide cross bars (9), and the surface of the movable tooth plate (11) is movably connected to the surface of the guide cross bars (9).

10. The method for using a calibration device for a non-destructive measuring instrument according to any one of claims 1 to 9, characterized in that: The method of use comprises the following steps: A. First, under the function of the connection port (40), it is convenient for personnel to connect to the ultrasonic flaw detector through a cable during use, and at the same time, the personnel can perform corresponding operations on the calibration device component (44) through the control panel (3) according to the calibration requirements, so as to perform calibration operations on the ultrasonic flaw detector; B. When the calibration device needs to be moved, carried or placed after use, the rotating sleeve (27) can be operated to rotate so as to drive the rotating rod (25) and the first bevel gear (23) to rotate. The rotation of the first bevel gear (23) can drive the second bevel gear (12) and the bidirectional screw (13) to rotate, and drive the two sets of movable tooth plates (11) to move toward a side close to each other. When the movable tooth plates (11) move, the circular gear (10), the U-shaped rotating frame (5) and the protective baffle (7) can be driven to rotate until the protective baffle (7) can be tightly attached to the sides of the fixed frame (1) and the housing (4) under the action of rotation, thereby effectively protecting the sides of the control panel (3) and the connection port (40), and preventing the control panel (3) and the connection port (40) from being damaged due to collision or water ingress during the process of moving, carrying or placing. C. When the calibration device fails and needs to be repaired and maintained, the rotating sleeve (27) is pushed to move along the surface of the rotating rod (25), thereby driving the movable guide rod (32) to move. The movable guide rod (32) can move through the spiral guide groove (29) to push the rotating drum (28) to rotate. The rotating drum (28) can drive the rotating shaft (21) and the reel (22) to rotate. The reel (22) can reel in the pull rope (20) and move the limit clamping plate (17) through the pull rope (20) until the limit clamping plate (17) can be detached from the surface of the limit clamping hole (36), thereby releasing the limit between the housing (4) and the fixed frame (1). Then, the housing (4) can be removed from the top of the fixed frame (1), thereby effectively increasing the operable space around the calibration device component (44) to facilitate maintenance operations.

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