A device for detecting the firmness of fish line binding for museum collections

Abstract

The present invention discloses a device for detecting the degree of firmness of the binding of a fishing line for a collection of cultural relics, which relates to the technical field of fishing line binding detection. The device comprises a battery block and a hand-held handle, wherein a telescopic mechanism is fixedly connected to the upper side of the hand-held handle, and a sound pressure probe is fixedly connected to one end of the telescopic mechanism. In the present invention, a staff member holds the device so that the sound pressure probe is close to the fishing line. First, the effective length and diameter of the fishing line are input through the function setting button, and then the test start button is clicked. Then, a special string plectrum is used to pluck the fishing line. The sound pressure probe collects the sound wave signal generated by the vibration of the fishing line and transmits it to a touch-screen hand-held detector. The touch-screen hand-held detector includes data acquisition and processing functions, and also includes database information. The result of each detection is compared with the database, and the specific detection situation is observed through the sound wave waveform display module and the spectrum display module, thereby judging whether the tested fishing line is firmly tied.

Description

Technical Field

[0001] The present invention relates to the technical field of fishing line binding detection, in particular to a device for detecting the binding firmness of fishing lines for cultural relics in museums. Background Art

[0002] There are many floating cultural relics in my country's collections. Compared with ancient buildings and ruins, floating cultural relics in museums are movable cultural relics. Floating cultural relics are generally small and in various shapes, such as bottles and jars, terracotta warriors, etc. They are usually floated in the display cabinets of museums and are easily damaged by earthquakes. Due to their mobility, floating cultural relics need to be frequently moved to various places for exhibition, and even exhibited abroad. Every time a floating cultural relic is fixed in a display cabinet, it needs to be manually tied and fixed by special staff of the museum. At present, fishing line is widely used as a reinforcement method for floating cultural relics in museums to improve the seismic performance of cultural relics in museums.

[0003] In the prior art, for example, Chinese patent CN216116477U discloses a "tension detection device for processing stable and resistant fishing lines." This device aims to address the problem of inaccurate detection caused by the single tension detection structure of existing tension detection devices during the detection process. Six support columns are provided on the upper ends of the four sides of the shock-absorbing base. A PLC intelligent controller is provided on the outside of the shock-absorbing base. A simulated hook is provided at the center upper end of the shock-absorbing base. A tension sensor is provided inside the simulated hook. A telescopic damping sleeve is provided at the lower end of the simulated hook. A rotator is provided at the lower end of the telescopic damping sleeve. A power drive controller is provided below the rotator. An identification detection terminal is provided on the outer side of the support column. A wireless image recognition sensor is provided inside the identification detection terminal. A tension control terminal is provided at the upper end of the support column. A motor is provided at the center of the upper end of the tension control terminal. A telescopic cylinder is provided at the lower end of the motor.

[0004] However, in the existing technology, the binding and fixing method of the fishing line of the museum collection is an important factor affecting the performance of the fishing line. There is no standardized operating system to refer to for the binding and subsequent inspection of the fishing line. Basically, it depends on the experience of the people to perform on-site operations. Whether the role of the fishing line can be maximized varies from person to person. In the actual binding operation, manual inspection has uncertainty and there will be large errors. It is impossible to accurately detect the firmness of the fishing line binding, which poses a major safety hazard to the protection of cultural relics. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for detecting the firmness of the binding of fishing lines for museum collections, so as to solve the problem that the binding and fixing methods of fishing lines for museum collections proposed in the above-mentioned background technology are uncertain in actual binding operations, there will be large errors, and it is impossible to accurately detect the firmness of the binding of the fishing lines, which poses a major safety hazard to the protection of cultural relics.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A device for detecting the firmness of the binding of fishing lines of museum cultural relics, comprising a battery block and a handheld handle, wherein a telescopic mechanism is fixedly connected to the upper side of the handheld handle, one end of the telescopic mechanism is fixedly connected to a sound pressure probe, a conical expansion mechanism is fixedly connected to the middle part of the outer side of the sound pressure probe, and the end of the sound pressure probe is fixedly connected to a touch-screen handheld detector, the touch-screen handheld detector comprises an acoustic waveform display module, a spectrum display module is provided below the acoustic waveform display module, a test start button is provided below the spectrum display module, a test result display button is provided on one side of the test start button, a previous / next test button is provided on the other side of the test result display button, a function setting button is provided on the other side of the previous / next test button, and the test start button, the test result display button, the previous / next test button and the function setting button are located on the same straight line.

[0007] Preferably, a fastening ring is fixedly connected to the middle of the outer surface of the sound pressure probe, the other end of the fastening ring is fixedly connected to the first-stage tooth frame, the outer side of the first-stage tooth frame is slidingly connected to the second-stage tooth frame, and the middle of one side of the second-stage tooth frame is rotatably connected to the second gear.

[0008] Preferably, the lower side of the second gear is meshedly connected with the upper side of the first-stage gear frame, the upper side of the second gear is meshedly connected with the third-stage gear frame, and the outer side of the second-stage gear frame is slidably engaged with the inner side of the third-stage gear frame.

[0009] Preferably, a first gear is rotatably connected to the inside of one side of the third-stage tooth frame, the lower side of the first gear is meshedly connected to the upper side of the second-stage tooth frame, the upper side of the first gear is meshedly connected to the outer cover shell, and the outer side of the third-stage tooth frame is slidably engaged with the inner side of the outer cover shell.

[0010] Preferably, a hydraulic cylinder is fixedly connected to one side of the outer cover shell, the movable end of the hydraulic cylinder passes through the interior of the outer cover shell and is fixedly connected to a push rack, one side of the push rack is fixedly connected to one side of the third-stage gear frame, and the side of the outer cover shell is fixedly connected to a side plate.

[0011] Preferably, a motor is fixedly connected to the upper side of the fastening ring, a threaded rod is fixedly mounted on the rotating shaft of the motor, and a movable shell is threadedly connected to the outer side of the threaded rod.

[0012] Preferably, a sliding groove is provided inside the movable shell, a fixing nail is fixedly connected to the inner wall of the movable shell, and an outer side of the fixing nail is rotatably connected to an umbrella rib.

[0013] Preferably, a movable rod is rotatably connected to the middle portion of the umbrella rib, and an inner fixing ring is rotatably connected to the other end of the movable rod. The inner side of the inner fixing ring is fixedly engaged with the outer surface of the sound pressure probe.

[0014] Preferably, the outer side of the umbrella rib is fixedly connected with nylon fabric, and the outer side of the movable rod is movably connected to the inner wall of the sliding groove.

[0015] Preferably, the upper side of the battery block is fixedly engaged with the lower side of the hand-held handle, and one side of the touch screen hand-held detector is fixedly connected to the outer side of the hand-held handle.

[0016] Compared with the existing technology, the beneficial effects of this system are:

[0017] 1. In the present invention, by setting a sound pressure probe, the sound wave of the fishing line vibration is used for detection to determine whether the fishing line is firmly tied. The invention is simple, easy to use and has high precision. After the cultural relics are tied to the fishing line, the staff holds the device, and the conical expansion mechanism opens the bell mouth to expose the sound pressure probe and is located at the center of the conical expansion mechanism. By controlling the telescopic mechanism, the sound pressure probe is brought close to the fishing line to be tested. First, the function setting button is used to input the effective length and diameter of the fishing line. Generally, the diameter is the default and can be input once. Then, the test start button is clicked, and the fishing line is plucked with a special string plectrum. The sound pressure probe collects the sound wave signal generated by the vibration of the fishing line and transmits it to the touch screen handheld detector. After the fishing line returns to rest, the test result display button is clicked to complete a test. The touch screen handheld detector includes data acquisition and processing functions, and also contains database information. The result of each test will be compared with the database. The specific situation of the test is observed through the sound wave waveform display module and the spectrum display module, thereby judging whether the tested fishing line is firmly tied. Click the previous / next test button to perform multiple tests.

[0018] 2. In the present invention, by setting a telescopic mechanism, the sound pressure probe can be brought as close to the fishing line as possible, avoiding inaccurate detection and analysis caused by loss during the transmission of sound waves. By starting the hydraulic cylinder to extend the movable end, the movable end of the hydraulic cylinder pushes the push frame, and the push frame pushes the third-stage gear frame to move in the inner cavity of the outer cover shell. The movement of the third-stage gear frame drives the first gear to rotate clockwise. Since the outer cover shell is stationary, the first gear engages the second-stage gear frame at the lower part and moves the second-stage gear frame outward. Due to the multiple relationship between the circumference of the first gear and its radius, the second-stage gear frame moves outward a greater distance than the third-stage gear frame. The distance between the gears is larger, and the second-stage gear frame extends outward from the inside of the third-stage gear frame. Precisely because the second-stage gear frame moves outward a greater distance than the third-stage gear frame, the second gear inside the second-stage gear frame rotates clockwise, and the first-stage gear frame at the lower part of the second gear meshes extends outward. Due to the multiple relationship between the circumference of the second gear and its radius, the first-stage gear frame moves outward a greater distance than the second-stage gear frame. Combining the above movements, the outer cover shell, the third-stage gear frame, the second-stage gear frame and the first-stage gear frame extend outward step by step. The first-stage gear frame drives the fastening ring to extend, thereby bringing the sound pressure probe close to the fishing line and improving the accuracy of detection.

[0019] 3. In the present invention, a conical expansion mechanism is provided to realize the expansion of the trumpet mouth outside the sound pressure probe. The opened trumpet mouth is conducive to collecting sound waves, and the closed trumpet mouth can effectively protect the sound pressure probe. By starting the motor, the motor drives the threaded rod to rotate, and the threaded rod causes the movable shell to move to the right, and the movable shell drives several internal fixing nails to move right. Since the inner fixing ring is fixed to the outside of the sound pressure probe, the umbrella rib drives the movable rod to expand outward when it moves to the right, and the movable rod drives the umbrella rib to expand outward. The nylon fabric is similar to the umbrella cover folding method of an umbrella. Several umbrella ribs stretch out the nylon fabric, and the expansion facilitates the sound pressure probe to complete the sound wave collection. The motor rotates in the opposite direction, and the nylon fabric contracts, protecting the sound pressure probe inside, reducing the entry of dust, and avoiding direct collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a device for detecting the firmness of fish line binding for cultural relics in a collection according to the present invention;

[0021] Figure 2 This is a structural schematic diagram of a device for detecting the firmness of fish line binding for cultural relics in a collection from a second perspective according to the present invention;

[0022] Figure 3 This is a structural schematic diagram of a touch-screen handheld detector for detecting the firmness of fishing line binding for cultural relics in a collection according to the present invention;

[0023] Figure 4 This is a partial structural diagram of a device for detecting the firmness of fish line binding for cultural relics in a collection according to the present invention;

[0024] Figure 5This is a schematic diagram of the exploded structure of a telescopic mechanism of a device for detecting the firmness of fish line binding for cultural relics in a collection according to the present invention;

[0025] Figure 6 This is a schematic diagram of the internal structure of a telescopic mechanism of a device for detecting the firmness of fish line binding for cultural relics in a collection according to the present invention;

[0026] Figure 7 This is a schematic diagram of the exploded structure of a conical expansion mechanism of a device for detecting the firmness of fish line binding for cultural relics in a collection according to the present invention;

[0027] Figure 8 The present invention is a schematic structural diagram of the internal cross-section of a tapered expansion mechanism of a device for detecting the firmness of fish line binding for museum cultural relics.

[0028] In the picture:

[0029] 1. Battery pack; 2. Handle; 3. Telescopic mechanism; 31. Fastening ring; 32. Side panel; 33. Hydraulic cylinder; 34. Outer cover; 35. First gear; 36. Third-stage gear frame; 37. Second gear; 38. Second-stage gear frame; 39. First-stage gear frame; 310. Push frame; 4. Conical expansion mechanism; 41. Nylon fabric; 42. Movable shell; 43. Threaded rod; 44. Motor; 45. Rib; 46. Movable rod; 47. Fixing pin; 48. Slide; 49. Inner fixing ring; 5. Sound pressure probe; 6. Touch screen handheld tester; 61. Sound wave display module; 62. Spectrum display module; 63. Test result display button; 64. Test start button; 65. Previous / next test button; 66. Function setting button. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] Reference Figure 1-8As shown: a device for detecting the firmness of the binding of a cultural relic fishing line in a collection, comprising a battery pack 1 and a handheld handle 2, a telescopic mechanism 3 being fixedly connected to the upper side of the handheld handle 2, a sound pressure probe 5 being fixedly connected to one end of the telescopic mechanism 3, a conical expansion mechanism 4 being fixedly connected to the middle part of the outer side of the sound pressure probe 5, a touch-screen handheld detector 6 being fixedly connected to the end of the sound pressure probe 5, the touch-screen handheld detector 6 comprising an acoustic waveform display module 61, a spectrum display module 62 being provided below the acoustic waveform display module 61, a test start button 64 being provided below the spectrum display module 62, a test result display button 63 being provided on one side of the test start button 64, a previous / next test button 65 being provided on the other side of the test result display button 63, a function setting button 66 being provided on the other side of the previous / next test button 65, the test start button 64, the test result display button 63, the previous / next test button 65 and the function setting button 66 being located on the same straight line; After piercing the cultural relics, the staff holds the device, and the conical expansion mechanism 4 opens the trumpet to expose the sound pressure probe 5 and is located at the center of the conical expansion mechanism 4. By controlling the telescopic mechanism 3, the sound pressure probe 5 is brought close to the fishing line that needs to be tested. First, the function setting button 66 is used to input the effective length and diameter of the fishing line. Generally, the diameter is the default and can be input once. Then click the test start button 64, and then use a special string plectrum to pluck the fishing line. The sound pressure probe 5 collects the sound wave signal generated by the vibration of the fishing line and transmits it to the touch screen handheld detector 6. After the fishing line returns to stillness, click the test result display button 63 to complete a test. The touch screen handheld detector 6 includes data acquisition and processing functions, as well as database information. The results of each test will be compared with the database. The specific situation of the test is observed through the sound wave waveform display module 61 and the spectrum display module 62, thereby judging whether the tested fishing line is tied firmly. Click the last / next test button 65 for multiple tests.

[0032] according to Figure 6 As shown, a fastening ring 31 is fixedly connected to the middle part of the outer surface of the sound pressure probe 5, and the other end of the fastening ring 31 is fixedly connected to the first-stage tooth frame 39. The outer side of the first-stage tooth frame 39 is slidably connected to the second-stage tooth frame 38, and the middle part of one side of the second-stage tooth frame 38 is rotatably connected to the second gear 37; the fastening ring 31 fixes the sound pressure probe 5, and the second gear 37 inside the second-stage tooth frame 38 rotates clockwise. The second gear 37 engages with the lower first-stage tooth frame 39 and extends outward. Due to the relationship between the circumference of the second gear 37 and its radius as a multiple, the first-stage tooth frame 39 moves outward a greater distance than the second-stage tooth frame 38.

[0033] according to Figure 6As shown, the lower side of the second gear 37 is meshed with the upper side of the first-stage tooth frame 39, the upper side of the second gear 37 is meshed with the third-stage tooth frame 36, and the outer side of the second-stage tooth frame 38 is slidably engaged with the inner side of the third-stage tooth frame 36; the second-stage tooth frame 38 extends outward from the inside of the third-stage tooth frame 36, and because the second-stage tooth frame 38 moves outward a greater distance than the third-stage tooth frame 36, the second gear 37 inside the second-stage tooth frame 38 rotates clockwise.

[0034] according to Figure 6 As shown, one side of the third-stage tooth frame 36 is rotatably connected to the inside of the first gear 35, the lower side of the first gear 35 is meshed with the upper side of the second-stage tooth frame 38, the upper side of the first gear 35 is meshed with the outer cover shell 34, and the outer side of the third-stage tooth frame 36 is slidably engaged with the inner side of the outer cover shell 34; the third-stage tooth frame 36 moves in the inner cavity of the outer cover shell 34, and the movement of the third-stage tooth frame 36 drives the first gear 35 to rotate clockwise. Since the outer cover shell 34 is stationary, the first gear 35 meshes with the lower second-stage tooth frame 38 and moves the second-stage tooth frame 38 outward. Due to the multiple relationship between the circumference of the first gear 35 and its radius, the second-stage tooth frame 38 moves outward a greater distance than the third-stage tooth frame 36.

[0035] according to Figure 5 and Figure 6 As shown, a hydraulic cylinder 33 is fixedly connected to one side of the outer cover shell 34, and the movable end of the hydraulic cylinder 33 passes through the interior of the outer cover shell 34 and is fixedly connected to a push rack 310, one side of the push rack 310 is fixedly connected to one side of the third-stage tooth frame 36, and the side of the outer cover shell 34 is fixedly connected to the side plate 32; starting the hydraulic cylinder 33 causes the movable end to extend, and the movable end of the hydraulic cylinder 33 pushes the push rack 310, and the push rack 310 pushes the third-stage tooth frame 36 to move in the inner cavity of the outer cover shell 34.

[0036] according to Figure 7 As shown, a motor 44 is fixedly connected to the upper side of the fastening ring 31, a threaded rod 43 is fixedly installed on the rotating shaft of the motor 44, and the outer side of the threaded rod 43 is threadedly connected to the movable shell 42; when the motor 44 is started, the motor 44 drives the threaded rod 43 to rotate, and the threaded rod 43 causes the movable shell 42 to move to the right.

[0037] according to Figure 8 As shown, a slide groove 48 is provided inside the movable shell 42, and a fixing nail 47 is fixedly connected to the inner wall of the movable shell 42, and the outer side of the fixing nail 47 is rotatably connected to the umbrella rib 45; the movable shell 42 drives several internal fixing nails 47 to move right, and the fixing nails 47 drive the umbrella rib 45 to move right.

[0038] according to Figure 8As shown, the middle part of the umbrella rib 45 is rotatably connected to a movable rod 46, and the other end of the movable rod 46 is rotatably connected to an inner fixed ring 49, and the inner side of the inner fixed ring 49 is fixedly engaged with the outer surface of the sound pressure probe 5; the inner fixed ring 49 is fixed to the outer side of the sound pressure probe 5, and when the umbrella rib 45 moves to the right, it drives the movable rod 46 to expand outward, and the movable rod 46 drives the umbrella rib 45 to expand outward.

[0039] according to Figure 8 As shown, the outer side of the umbrella rib 45 is fixedly connected with the nylon fabric 41, and the outer side of the movable rod 46 is movably connected to the inner wall of the slide 48; the nylon fabric 41 is folded in a manner similar to an umbrella, and several umbrella ribs 45 open the nylon fabric 41, which makes it easier for the sound pressure probe 5 to complete the sound wave collection. The motor 44 rotates in the opposite direction, and the nylon fabric 41 contracts, protecting the sound pressure probe 5 inside to reduce the entry of dust and avoid direct collision. When the movable rod 46 contracts, it is hidden inside the slide 48.

[0040] according to Figure 1 As shown, the upper side of the battery block 1 is fixedly connected to the lower side of the hand-held handle 2, and one side of the touch screen hand-held tester 6 is fixedly connected to the outer side of the hand-held handle 2; hold the hand-held handle 2 with one hand, and operate the touch screen hand-held tester 6 with the other hand, and the battery block 1 provides power for the entire device.

[0041] The usage and working principle of this device: After the fishing line is tied to the cultural relics, the staff holds the device, and the conical expansion mechanism 4 opens the trumpet to expose the sound pressure probe 5 and is located at the center of the conical expansion mechanism 4. By controlling the telescopic mechanism 3, the sound pressure probe 5 is brought close to the fishing line to be tested. First, the function setting button 66 is used to input the effective length and diameter of the fishing line. Generally, the diameter is the default and can be input once. Then, the test start button 64 is clicked, and then a special string plectrum is used to pluck the fishing line. The sound pressure probe 5 collects the sound wave signal generated by the vibration of the fishing line and transmits it to the touch screen handheld detector 6. After the fishing line returns to stillness, click the test result display button 63 to complete a test. The touch screen handheld detector 6 includes data acquisition and processing functions, as well as database information. The results of each test will be compared with the database. The specific situation of the test is observed through the sound wave waveform display module 61 and the spectrum display module 62, thereby judging whether the tested fishing line is tied firmly. Click the previous / next test button 65 for multiple tests.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for detecting the firmness of fishing line binding for museum collections, comprising a battery pack and a handheld handle, characterized in that: A telescopic mechanism is fixedly connected to the upper side of the hand-held handle, one end of the telescopic mechanism is fixedly connected to a sound pressure probe, a conical expansion mechanism is fixedly connected to the middle part of the outer side of the sound pressure probe, and a touch-screen handheld detector is fixedly connected to the end of the sound pressure probe, the touch-screen hand-held detector includes a sound wave waveform display module, a spectrum display module is provided below the sound wave waveform display module, a test start button is provided below the spectrum display module, a test result display button is provided on one side of the test start button, a previous / next test button is provided on the other side of the test result display button, a function setting button is provided on the other side of the previous / next test button, and the test start button, the test result display button, the previous / next test button and the function setting button are located on the same straight line; Wherein, when the conical expansion mechanism is opened, the sound pressure probe is exposed; when the conical expansion mechanism is contracted, the sound pressure probe is protected inside; After clicking the test start button, use a plectrum to pluck the fishing line, and the sound pressure probe collects the sound wave signal generated by the vibration of the fishing line and transmits it to the touch-screen handheld detector. After the fishing line is still, click the test result display button, and the touch-screen handheld detector compares the sound wave signal with the database information in the touch-screen handheld detector to determine whether the fishing line is tied firmly.

2. The device for detecting the firmness of fishing line binding of cultural relics in a collection according to claim 1, characterized in that: A fastening ring is fixedly connected to the middle of the outer surface of the sound pressure probe, the other end of the fastening ring is fixedly connected to the first-stage tooth frame, the outer side of the first-stage tooth frame is slidably connected to the second-stage tooth frame, and the middle of one side of the second-stage tooth frame is rotatably connected to the second gear.

3. The device for detecting the firmness of fishing line binding of cultural relics in a collection according to claim 2, characterized in that: The lower side of the second gear is meshedly connected with the upper side of the first-stage gear frame, the upper side of the second gear is meshedly connected with the third-stage gear frame, and the outer side of the second-stage gear frame is slidably engaged with the inner side of the third-stage gear frame.

4. The device for detecting the firmness of fishing line binding of cultural relics in a collection according to claim 3, characterized in that: A first gear is rotatably connected to the inside of one side of the third-stage gear frame, the lower side of the first gear is meshed with the upper side of the second-stage gear frame, the upper side of the first gear is meshed with the outer cover shell, and the outer side of the third-stage gear frame is slidably engaged with the inner side of the outer cover shell.

5. The device for detecting the firmness of fishing line binding of cultural relics in a collection according to claim 4, characterized in that: A hydraulic cylinder is fixedly connected to one side of the outer cover shell, and the movable end of the hydraulic cylinder passes through the interior of the outer cover shell and is fixedly connected to a push rack. One side of the push rack is fixedly connected to one side of the third-stage gear frame, and a side plate is fixedly connected to the side of the outer cover shell.

6. The device for detecting the firmness of fishing line binding of cultural relics in a collection according to claim 5, characterized in that: The conical expansion mechanism includes: nylon fabric, a movable shell, a threaded rod, a motor, an umbrella rib, a movable rod, a fixing nail, a sliding groove and an inner fixing ring; the upper side of the fastening ring is fixedly connected to the motor, the rotating shaft of the motor is fixedly installed with the threaded rod, and the outer side of the threaded rod is threadedly connected to the movable shell.

7. The device for detecting the firmness of fishing line binding of cultural relics in a collection according to claim 6, characterized in that: The sliding groove is provided inside the movable shell, the fixing nail is fixedly connected to the inner wall of the movable shell, and the outer side of the fixing nail is rotatably connected to the umbrella rib.

8. The device for detecting the firmness of fishing line binding of cultural relics in a collection according to claim 7, characterized in that: The middle part of the umbrella rib is rotatably connected to the movable rod, and the other end of the movable rod is rotatably connected to the inner fixing ring. The inner side of the inner fixing ring is fixedly engaged with the outer surface of the sound pressure probe.

9. The device for detecting the firmness of fishing line binding of cultural relics in museums according to claim 8, characterized in that: The outer side of the umbrella rib is fixedly connected with the nylon fabric, and the outer side of the movable rod is movably connected with the inner wall of the sliding groove.

10. The device for detecting the firmness of fishing line binding of cultural relics in a collection according to claim 1, characterized in that: The upper side of the battery block is fixedly connected to the lower side of the handheld handle, and one side of the touch screen handheld tester is fixedly connected to the outer side of the handheld handle.

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