Reference block for performing ray nondestructive testing on safety pressing rod of recreation facility

Abstract

The utility model discloses a reference block for ray nondestructive testing of a recreation facility safety compression bar, the reference block is designed into a tubular test block and is coated with a foaming protective jacket, so that a structure with the same shape as the safety compression bar is formed, and the tubular test block is integrally formed by a plurality of sub-tubes with different wall thicknesses; therefore, only the reference block disclosed by the scheme needs to be selected for shooting during X-ray detection, the gray influence caused by the foaming protective jacket on the negative film is included, and then the part which is the same as the detected safety pressure rod is selected in the negative film for quantitative analysis, so that the detection process is quicker, and the detection efficiency is improved. And a coating layer on the safety pressing rod does not need to be disassembled.

Description

Technical Field

[0001] The utility model relates to the field of comparison test blocks, in particular to a comparison test block for performing radiographic nondestructive testing on safety pressure bars of amusement facilities. Background Art

[0002] Safety bars are one of the core components of amusement facilities, which are related to the safety of passengers. Safety bars are generally made of a metal tube in a U shape, and then a layer of foam material is coated on the surface of the metal tube to improve its comfort, such as Figure 3 and Figure 4 As shown. However, after long-term use, due to the erosion of rainwater, sweat, etc., especially when the coating is damaged, the metal tube body is particularly prone to corrosion and thinning, resulting in a decrease in structural strength, and then causing the risk of structural failure. Therefore, the safety pressure rod needs to be inspected frequently. The currently commonly used detection method is cold cathode ray detection. Its principle is that the cold cathode X-ray tube uses the tip discharge principle to allow electrons to enter the vacuum from the solid surface through the action of a strong electric field, and collide with the target material to generate X-rays to illuminate the safety pressure rod. When the rays are absorbed by different parts of the safety pressure rod, the energy of the X-rays will be reduced, and the remaining energy will be received on the digital imaging plate to form a plane comparison projection image. The comparison test block is then photographed in the same way to form a standard projection image, and then the grayscale of the standard projection image and the plane comparison projection image is compared to determine the degree of corrosion of the safety pressure rod being inspected. Referring to patent number CN215525592U, current comparison test blocks are generally plate-shaped and made of pure metal, and are all universal parts. This leads to a defect when testing the safety pressure bar of amusement facilities. That is, the foam material covering the outer surface of the safety pressure bar will also absorb the energy of the X-ray during testing. As a result, if the safety pressure bar is photographed together with the foam material, the grayscale of the plane comparison projection image is not accurate enough. Therefore, during testing, the foam layer on the outer surface of the metal tube needs to be broken and reinstalled after the shooting is completed, which is time-consuming and labor-intensive. Utility Model Content

[0003] In order to solve the above problems, the purpose of the present invention is to provide a comparison test block that does not require a safety pressure rod to be broken open.

[0004] The technical solution adopted by the utility model to solve the problem is: a comparison test block for performing radiographic nondestructive testing on the safety pressure rod of an amusement facility, comprising:

[0005] A tubular test block is formed by connecting several sub-tubes end to end and integrally forming the test block. The outer diameter and inner diameter of each sub-tube are coaxial to ensure uniform wall thickness. All sub-tubes are coaxially arranged, and the wall thickness of each sub-tube is unequal.

[0006] A foam protective jacket is provided on the outer surface of the tubular test block.

[0007] As a further improvement of the above technical solution, the outer diameters of all sub-tubes are equal, and the wall thickness of each section of sub-tube gradually decreases from one end toward the other end of the tubular test block.

[0008] As a further improvement to the above technical solution, taking the thickness of the sub-tube with the largest wall thickness as a reference, the wall thickness of the sub-tubes in other sections is reduced proportionally at a ratio of %-%.

[0009] As a further improvement of the above technical solution, the thickness of the foam protective jacket is 40-60 mm.

[0010] As a further improvement of the above technical solution, both ends of the tubular test block are provided with extended pipe sections, and the bottom of the extended pipe section is provided with a support base.

[0011] As a further improvement of the above technical solution, a storage cavity is provided in the support base, and a door body communicating with the storage cavity is provided on the outer side surface of the support base.

[0012] As a further improvement of the above technical solution, the surface of the foamed protective jacket is provided with information markings facing each section of sub-pipes.

[0013] As a further improvement of the above technical solution, a length measurement scale is provided on the surface of the foamed protective jacket.

[0014] The beneficial effect of the present invention is that since the safety pressure bars of amusement facilities are of standard specifications, through the structure of the present invention, the comparison test block is designed to be tubular, and the outer layer is covered with a foam protective jacket, thereby forming a structure with the same shape as the safety pressure bar. The tubular test block is integrally formed by several sections of sub-tubes with different wall thicknesses. In this way, it is only necessary to select the comparison test block disclosed in the present invention for shooting during X-ray detection. The grayscale effect caused by the foam protective jacket has been included in the film. Then, the part identical to the safety pressure bar to be tested is selected in the film for quantitative analysis, so that the detection process is faster and there is no need to remove the coating on the safety pressure bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic structural diagram of a preferred embodiment of the present utility model;

[0017] Figure 2 for Figure 1 AA direction cross-sectional structure schematic diagram;

[0018] Figure 3 It is the front view of the safety pressure bar;

[0019] Figure 4 It is a side view of the safety pressure bar;

[0020] Figure 5 It is the cross-sectional state of the metal tube. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference Figures 1 to 5 A comparison test block for radiographic nondestructive testing of safety bars of amusement facilities, comprising:

[0026] The tubular test block 10 is formed by connecting a plurality of sub-tubes 11 end to end and integrally forming the test block. The outer diameter and inner diameter of each sub-tube 11 are coaxial to ensure uniform wall thickness. All sub-tubes 11 are coaxially arranged, and the wall thickness of each sub-tube 11 is unequal.

[0027] The foam protective jacket 20 is sleeved on the outer surface of the tubular test block 10 .

[0028] Since the safety pressure bars of amusement facilities are of standard specifications, the structure of this solution is used to design the comparison test block into a tubular shape, and to coat the outer layer with a foam protective jacket 20, thereby forming a structure having the same shape as the safety pressure bar. The tubular test block 10 is integrally formed from several sections of sub-tubes 11 with different wall thicknesses. In this way, it is only necessary to select the comparison test block disclosed in this solution for shooting during X-ray detection. The grayscale effect caused by the foam protective jacket 20 has been included on the film. Then, the portion identical to the safety pressure bar being tested is selected in the film for quantitative analysis, thereby making the detection process faster and eliminating the need to remove the coating on the safety pressure bar.

[0029] For further optimization, in this solution, it is preferred that the outer diameters of all sub-tubes 11 are equal, and the wall thickness of each section of sub-tube 11 gradually decreases from one end toward the other end of the tubular test block 10 .

[0030] For further optimization, in this solution, the wall thickness of the thickest sub-tube 11 is preferably used as the reference, and the wall thickness of the other sub-tubes 11 is reduced proportionally by 5%-10%. That is, when the wall thickness of the thickest sub-tube 11 is 1, the wall thickness of the other sub-tubes 11 is 0.95, 0.9, 0.8, etc.

[0031] Since the thickness of the outer surface coating of the currently commonly used safety pressure rod is 40-60 mm, the thickness of the foam protective jacket 20 is preferably 40-60 mm.

[0032] For further optimization, it is preferred that both ends of the tubular test block 10 are provided with an extension pipe section 12, and the bottom of the extension pipe section 12 is provided with a support base 30, so that it is convenient to place and not easy to roll. Therefore, during testing, the comparison test block of this scheme can be conveniently placed directly under the safety pressure rod for synchronous shooting.

[0033] For further optimization, since the inspection of the safety pressure rod sometimes involves disassembly and other operations, corresponding tools are needed, and it is quite troublesome to carry a toolbox after carrying the comparison test block, it is preferred to combine them, that is, a storage cavity 31 is provided in the support base 30, and a door body 32 connected to the storage cavity 31 is provided on the outer side of the support base 30.

[0034] For further optimization, it is preferred that the surface of the foamed protective jacket 20 is provided with information identification 21 facing each section of the sub-pipe 11 , so as to facilitate the staff to identify the data of each section of the sub-pipe 11 .

[0035] For further optimization, it is preferred that a length measuring scale 22 is provided on the surface of the foamed protective jacket 20, so as to facilitate the measurement of the corroded length of the safety pressure rod.

[0036] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A comparison test block for radiographic nondestructive testing of safety bars of amusement facilities, characterized in that: include: A tubular test block (10) is formed by connecting a plurality of sub-tubes (11) end to end and integrally forming the test block, wherein the outer diameter and the inner diameter of each sub-tube (11) are coaxial to ensure uniform wall thickness, and all the sub-tubes (11) are coaxially arranged, and the wall thickness of each sub-tube (11) is unequal; A foaming protective jacket (20) is sleeved on the outer surface of the tubular test block (10).

2. A comparison test block for performing radiographic nondestructive testing on amusement facility safety pressure bars according to claim 1, characterized in that: The outer diameters of all the sub-tubes (11) are equal, and the wall thickness of each section of the sub-tube (11) gradually decreases from one end toward the other end of the tubular test block (10).

3. A comparison test block for performing radiographic nondestructive testing on amusement facility safety pressure bars according to claim 1, characterized in that: Taking the wall thickness of the sub-tube (11) with the largest wall thickness as a reference, the wall thicknesses of the sub-tubes (11) of other sections are reduced in equal proportions at a ratio of 5% to 10%.

4. A comparison test block for performing radiographic nondestructive testing on amusement facility safety pressure bars according to claim 1, characterized in that: The thickness of the foamed protective jacket (20) is 40-60 mm.

5. The comparison test block for performing radiographic nondestructive testing on amusement facility safety pressure bars according to claim 1, characterized in that: Both ends of the tubular test block (10) are provided with extended pipe sections (12), and the bottom of the extended pipe section (12) is provided with a supporting base (30).

6. A comparison test block for performing radiographic nondestructive testing on amusement facility safety pressure bars according to claim 5, characterized in that: A storage cavity (31) is provided in the support base (30), and a door body (32) communicating with the storage cavity (31) is provided on the outer side surface of the support base (30).

7. The comparison test block for performing radiographic nondestructive testing on amusement facility safety pressure bars according to claim 1, characterized in that: The surface of the foamed protective jacket (20) is provided with information markings (21) facing each section of the sub-tube (11).

8. The comparison test block for performing radiographic nondestructive testing on amusement facility safety pressure bars according to claim 1, characterized in that: The surface of the foamed protective jacket (20) is provided with a length measurement scale (22).

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