Ultrasonic-based in-situ heating and heat preservation device suitable for dynamic loading of geopolymer

Abstract

The utility model relates to the technical field of material detection, in particular to an ultrasonic-based in-situ heating and heat preservation device suitable for geopolymer dynamic loading. The equipment comprises a coating mechanism, the coating mechanism comprises a bearing frame, a first coating box and a second coating box; a guide rod is arranged in the middle of the bearing frame. The first wrapping box and the second wrapping box can move along the guide rod. The first coating box and the second coating box can move in opposite directions to coat a test piece; and the first coating box and the second coating box can move in opposite directions so as to release coating of the test piece. According to the scheme, the first coating box and the second coating box can move oppositely to coat the test piece, so that broken test piece fragments in the test process are restrained in a space formed by the first coating box and the second coating box, and the problem that personnel and equipment are damaged by the splashed test piece fragments is avoided.

Description

Technical Field

[0001] This utility model relates to the field of materials testing technology, and in particular to an in-situ heating and insulation device based on ultrasound suitable for dynamic loading of geopolymers. Background Technology

[0002] In the design of high-rise buildings, it is essential to fully consider potential extreme situations, with fire being of particular concern. During a fire, the spread of flames causes a rapid rise in temperature in certain areas of the building. In such circumstances, critical components such as steel structural beams and columns, operating in high-temperature environments, may also be subjected to impacts from other unforeseen events. For example, shockwaves from explosions and vibrations from earthquakes can all exert stress on the building structure. These complex and dangerous conditions require steel structural beams and columns to possess sufficient strength and toughness to withstand impact loads under high temperatures. Otherwise, if these components deform, become damaged, or even break under the combined effects of high temperature and impact, it will seriously threaten the stability and safety of the building structure.

[0003] Currently, researchers at home and abroad have used various loading and testing methods to study the fracture characteristics and mechanisms of high-temperature materials. Among them, the commonly used loading method is to apply impact loads using the Split Hopkinson Bar Test System (SHPB).

[0004] However, because the specimens are impacted and broken during the existing experimental process, the experimental personnel and equipment are easily injured by the flying specimen fragments. Utility Model Content

[0005] This invention provides an in-situ heating and insulation device based on ultrasound suitable for dynamic loading of geopolymers, in order to solve the problem that specimens are easily broken by impact during existing experiments, resulting in experimental personnel and equipment being easily injured by flying specimen fragments.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0007] An in-situ heating and insulation device based on ultrasound, suitable for dynamic loading of geopolymers.

[0008] Including the covering mechanism;

[0009] The covering mechanism includes: a support frame, a first covering box, and a second covering box;

[0010] A guide rod is provided in the middle of the supporting frame.

[0011] The first and second packaging boxes are movable along the guide rod;

[0012] The first and second covering boxes are capable of moving towards each other to cover the specimen;

[0013] as well as,

[0014] The first and second covering boxes can move in opposite directions to unwrap the specimen.

[0015] Furthermore, the covering mechanism further includes: at least one set of synchronization units;

[0016] The synchronization unit includes a support base, an upper connecting rod, a middle connecting rod, and a lower connecting rod;

[0017] One end of the support base is located on the load-bearing frame, and the other end is hinged to the middle connecting rod, with the hinge position located in the middle of the middle connecting rod. The upper connecting rod, the middle connecting rod, and the lower connecting rod are sequentially hinged at their ends. The free end of the upper connecting rod is hinged to the first covering box, and the free end of the lower connecting rod is hinged to the second covering box.

[0018] Furthermore, the covering mechanism also includes: a driving component;

[0019] The drive component is located on the support frame, and its telescopic moving end is mounted on the first covering box.

[0020] Furthermore, it also includes support institutions;

[0021] The lifting mechanism includes a lifting bracket and a sleeve unit;

[0022] The lifting bracket can move the specimen to the clamping position of the testing system, and the sleeve unit can move the lifting bracket to separate from the specimen.

[0023] Furthermore, the middle part of the lifting bracket is detachably mounted with an adapter support via a series sleeve; the interior of the adapter support mates with the specimen.

[0024] Furthermore, the sleeve unit includes a guide rod and a compression sleeve fitted onto the guide rod and movable up and down along the guide rod;

[0025] The extrusion sleeve can drive the lifting bracket to move downward along the guide rod.

[0026] Furthermore, the sleeve unit also includes a return spring fitted onto the guide rod;

[0027] The return spring is located at the bottom of the lifting bracket, and the return spring is configured to always have a tendency to drive the lifting bracket upward.

[0028] Furthermore, a sleeve unit is provided at each of the four corners of the space formed by the first covering box and the second covering box.

[0029] Furthermore, it also includes output lines;

[0030] The output terminal of the output line is located on the first encapsulation box;

[0031] The output line is tested by an ultrasonic heating test system.

[0032] Furthermore, it also includes adjusting the circuit;

[0033] The detection end of the adjustment circuit is located on the first encapsulation box;

[0034] The regulating circuit controls the output power of the output circuit through temperature feedback from the detection end.

[0035] The beneficial effects of the ultrasonic-based in-situ heating and insulation device suitable for dynamic loading of geopolymers in this invention are analyzed as follows:

[0036] The device includes a covering mechanism; the covering mechanism includes: a support frame, a first covering box and a second covering box; a guide rod is provided in the middle of the support frame;

[0037] The first and second covering boxes can move along the guide rod; the first and second covering boxes can move towards each other to cover the specimen; and the first and second covering boxes can move in opposite directions to uncover the specimen.

[0038] In this design, because the first and second covering boxes can move towards each other to cover the specimen, the fragments of the specimen that break during the test are confined within the space formed by the first and second covering boxes, thus avoiding the problem of personnel and equipment being injured by flying specimen fragments. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 This utility model provides a schematic diagram of the covering mechanism in an in-situ heating and insulation device based on ultrasound suitable for dynamic loading of geopolymers.

[0041] Figure 2 A combined cross-sectional view of the covering mechanism and the lifting mechanism in an in-situ heating and insulation device based on ultrasound suitable for dynamic loading of geopolymers provided in this embodiment of the utility model.

[0042] Figure 3An exploded three-dimensional structural diagram of the synchronization unit in an in-situ heating and insulation device based on ultrasound suitable for dynamic loading of geopolymers, provided by this embodiment of the invention.

[0043] Figure 4 This utility model provides a schematic diagram of the supporting mechanism in an in-situ heating and insulation device based on ultrasound suitable for dynamic loading of geopolymers.

[0044] Figure 5 This utility model provides a three-dimensional exploded view of the lifting mechanism in an in-situ heating and insulation device based on ultrasound suitable for dynamic loading of geopolymers.

[0045] Figure 6 This utility model provides a schematic diagram of an in-situ heating and insulation device based on ultrasound suitable for dynamic loading of geopolymers.

[0046] icon:

[0047] 100-Covering mechanism; 110-Bearing frame; 111-Guide rod; 120-First covering box; 130-Second covering box; 140-Synchronization unit; 141-Support base; 142-Upper connecting rod; 143-Middle connecting rod; 144-Lower connecting rod; 150-Drive component; 200-Lifting mechanism; 210-Lifting bracket; 211-Series sleeve; 212-Adaptive support; 220-Sleeve rod unit; 221-Guide insertion rod; 222-Crushing sleeve; 223-Reset spring; 300-Output line; 400-Adjustment line. Detailed Implementation

[0048] Because the specimens are impacted and broken during the existing experimental process, the experimental personnel and equipment are easily injured by the flying specimen fragments.

[0049] In view of this, this solution provides an in-situ heating and insulation device based on ultrasound that is suitable for dynamic loading of geopolymers;

[0050] Including a covering mechanism 100;

[0051] The covering mechanism 100 includes: a support frame 110, a first covering box 120 and a second covering box 130; a guide rod 111 is provided in the middle of the support frame 110; the first covering box 120 and the second covering box 130 can move along the guide rod 111; the first covering box 120 and the second covering box 130 can move towards each other to cover the specimen; and the first covering box 120 and the second covering box 130 can move in opposite directions to uncover the specimen.

[0052] In this design, since the first covering box 120 and the second covering box 130 can move towards each other to cover the test specimen, the broken test specimen fragments during the test are confined within the space formed by the first covering box 120 and the second covering box 130, thereby avoiding the problem of personnel and equipment being injured by flying test specimen fragments.

[0053] In addition, since the broken test fragments are confined inside the first covering box 120 and the second covering box 130, and the first covering box 120 and the second covering box 130 can move in opposite directions to unwrap the test specimen, it provides operating space for cleaning up the test specimen fragments after the test is completed, thus facilitating the collection of the test specimen fragments.

[0054] More details regarding the shape and structure of the covering mechanism 100:

[0055] The covering mechanism 100 also includes: at least one set of synchronization units 140;

[0056] Synchronization unit 140 includes support base 141, upper connecting rod 142, middle connecting rod 143 and lower connecting rod 144;

[0057] One end of the support base 141 is located on the load-bearing frame 110, and the other end is hinged to the middle connecting rod 143, with the hinge position located in the middle of the middle connecting rod 143. The upper connecting rod 142, the middle connecting rod 143 and the lower connecting rod 144 are hinged at their ends in sequence. The free end of the upper connecting rod 142 is hinged to the first covering box 120, and the free end of the lower connecting rod 144 is hinged to the second covering box 130.

[0058] More details regarding the power source of the covering mechanism 100:

[0059] The covering mechanism 100 also includes: a drive component 150;

[0060] The drive component 150 is located on the support frame 110, and its telescopic moving end is mounted on the first covering box 120.

[0061] In this design, the driving component 150 drives the first covering box 120 to move downward along the guide rod 111. During this process, the first covering box 120 drives the free end of the upper connecting rod 142 to move downward while rotating. The upper connecting rod 142 drives the middle connecting rod 143 to rotate around the support base 141. The rotating middle connecting rod 143 drives the lower connecting rod 144 and the hinged end of the middle connecting rod 143 to move upward while rotating. The lower connecting rod 144 drives the second covering box 130 to move upward along the guide rod 111. The two moving in opposite directions... The first covering box 120 and the second covering box 130 cover the specimen within the space they form. After the specimen is tested, the driving component 150 drives the first covering box 120 to move upward along the guide rod 111. With the cooperation of the synchronization unit 140, the first covering box 120 drives the second covering box 130 to move downward. The first covering box 120 and the second covering box 130, which move in opposite directions, come into contact with the specimen assembly position and cover it, thereby providing sufficient space to collect specimen fragments in the second covering box 130.

[0062] In order to accurately assemble the test piece into the test system, this solution also includes a lifting mechanism 200.

[0063] Regarding the shape and structure of the lifting mechanism 200, specifically:

[0064] The lifting mechanism 200 includes a lifting bracket 210 and a sleeve unit 220;

[0065] The lifting bracket 210 can move the specimen to the clamping position of the test system, and the sleeve unit 220 can move the lifting bracket 210 to separate from the specimen.

[0066] For more details on how to make the lifting mechanism 200 adaptable to different types of test specimens:

[0067] The middle part of the lifting bracket 210 is detachably installed with an adapter support 212 via a series sleeve 211; the interior of the adapter support 212 is compatible with the test piece.

[0068] More details on how to separate the lifting bracket 210 from the specimen:

[0069] The sleeve unit 220 includes a guide rod 221 and a compression sleeve 222 fitted onto the guide rod 221 and movable up and down along the guide rod 221;

[0070] The extrusion sleeve 222 can drive the lifting bracket 210 to move downward along the guide rod 221.

[0071] Regarding how the lifting bracket 210 resets during the disengagement of the extrusion sleeve 222 from the guide rod 221:

[0072] The sleeve unit 220 also includes a return spring 223 fitted on the guide rod 221;

[0073] The return spring 223 is located at the bottom of the lifting bracket 210, and the return spring 223 is configured to always have a tendency to drive the lifting bracket 210 upward.

[0074] To ensure that the lifting bracket 210 can be accurately reset to the specimen assembly position:

[0075] The guide rod 221 has a stroke slot on its surface, and the inner wall of the lifting bracket 210 is provided with a plate that can move along the stroke slot. When the plate moves to the upper limit of the stroke slot, the lifting bracket 210 can lift the specimen to the assembly position.

[0076] Regarding how to stably lift and lower the 210 lifting bracket:

[0077] A sleeve unit 220 is provided at each of the four corners of the space formed by the first covering box 120 and the second covering box 130.

[0078] In this scheme, firstly, a corresponding adapter support 212 is selected according to the specimen type. Then, the adapter support 212 is fixedly installed to the middle of the lifting bracket 210 through the series sleeve 211. At this time, the lifting bracket 210 protrudes from the second covering box 130, and the return spring 223 supports the adapter support 212 to the specimen assembly position through the lifting bracket 210. Then, by placing the specimen inside the adapter support 212, the specimen is positioned in the assembly position of the testing system. After the specimen is assembled, the first covering box 120 and... The second covering boxes 130 move relative to each other. During this process, the extrusion sleeve 222 is fitted onto the guide rod 221, and the extrusion sleeve 222 drives the lifting bracket 210 to move downward along the guide rod 221. The lifting bracket 210 drives the adapter support 212 to separate from the specimen through the series sleeve 211. At the same time, through the sleeve rod units 220 arranged at the four corners of the space formed by the first covering box 120 and the second covering box 130, the lifting bracket 210 is stably lifted and lowered under the drive of the sleeve rod units 220.

[0079] In order to achieve a high-temperature environment in the experiment, this scheme also includes an output line 300.

[0080] Regarding the shape and structure of the output line 300, specifically:

[0081] It also includes output line 300;

[0082] The output terminal of the output line 300 is located on the first enclosure box 120;

[0083] The output line 300 is used to test specimens through an ultrasonic heating test system.

[0084] To achieve the heating function, the shape and structure of the output line 300 are described in more detail:

[0085] The output circuit includes an ultrasonic generator, a transducer, and a waveguide; the waveguide is located on the first enclosure 120; one end of the ultrasonic generator is connected to the power supply, and the other end is connected to the transducer; the other end of the transducer is connected to the waveguide.

[0086] For more details on how to accurately control the heating temperature of output line 300:

[0087] It also includes regulating line 400;

[0088] The detection end of the adjustment line 400 is located on the first encapsulation box 120;

[0089] The regulating circuit 400 controls the output power of the output circuit 300 through temperature feedback from the detection end.

[0090] To achieve the temperature control function, the shape and structure of the adjustment circuit 400 are further refined:

[0091] The regulating circuit includes a temperature sensor and a temperature control element; the temperature sensor is located on the first covering box 120, and its sensing end is located inside the first covering box 120; the output end of the temperature sensor is connected to the input end of the temperature control element; the output end of the temperature control element is connected to the input end of the ultrasonic generator.

[0092] In this scheme, the ultrasonic generator emits a high-frequency electrical signal, which is then converted into ultrasonic waves by the transducer. The ultrasonic waves heat the specimen and part of the test system through the waveguide. At the same time, the temperature sensor monitors the temperature inside the first encapsulation box 120 in real time and transmits the temperature monitoring information to the temperature control element. The temperature control element adjusts the output power of the ultrasonic generator according to the temperature monitoring information.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ultrasonic in-situ heating and holding device suitable for dynamic loading of geopolymer, characterized in that: it comprises a cladding mechanism (100); the cladding mechanism (100) comprises a bearing frame (110), a first cladding box (120) and a second cladding box (130); the middle part of the bearing frame (110) is provided with a guide rod (111); the first cladding box (120) and the second cladding box (130) can move along the guide rod (111); the first cladding box (120) and the second cladding box (130) can move towards each other to cladding the test piece; and the first cladding box (120) and the second cladding box (130) can move reversely to release the cladding of the test piece.

2. The ultrasonic in-situ heating and holding device suitable for dynamic loading of geopolymer according to claim 1, characterized in that: the cladding mechanism (100) further comprises at least one set of synchronization units (140); the synchronization unit (140) comprises a support seat (141), an upper connecting rod (142), a middle connecting rod (143) and a lower connecting rod (144); one end of the support seat (141) is located on the bearing frame (110), the other end is hinged with the middle connecting rod (143), and the hinge position is in the middle part of the middle connecting rod (143); the upper connecting rod (142), the middle connecting rod (143) and the lower connecting rod (144) are hinged in sequence at the end, the free end of the upper connecting rod (142) is hinged with the first cladding box (120), and the free end of the lower connecting rod (144) is hinged with the second cladding box (130).

3. The ultrasonic in-situ heating and holding device suitable for dynamic loading of geopolymer according to claim 2, characterized in that: the cladding mechanism (100) further comprises a driving component (150); the driving component (150) is located on the bearing frame (110), and the telescopic moving end thereof is installed on the first cladding box (120).

4. The ultrasonic in-situ heating and holding device suitable for dynamic loading of geopolymer according to claim 3, characterized in that: it further comprises a lifting mechanism (200); the lifting mechanism (200) comprises a lifting bracket (210) and a sleeve rod unit (220); the lifting bracket (210) can drive the test piece to be positioned to the clamping position of the test system, and the sleeve rod unit (220) can drive the lifting bracket (210) to separate from the test piece.

5. The ultrasonic in-situ heating and holding device suitable for dynamic loading of geopolymer according to claim 4, characterized in that: the middle part of the lifting bracket (210) is detachably installed with an adaptive support (212) through a series of sleeve pipes (211); the inside of the adaptive support (212) is matched with the test piece.

6. The ultrasonic in-situ heating and holding device suitable for dynamic loading of geopolymer according to claim 5, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The sleeve rod unit (220) comprises a guide rod (221) and a pressing sleeve (222) sleeved on the guide rod (221) and movable up and down along the guide rod (221); The pressing sleeve (222) can drive the lifting bracket (210) to move downward along the guide rod (221).

7. The in-situ heating and temperature maintaining device based on ultrasonic waves and suitable for dynamic loading of geopolymer, according to claim 6, characterized in that: The sleeve rod unit (220) further comprises a reset spring (223) sleeved on the guide rod (221); The reset spring (223) is located at the bottom of the lifting bracket (210), and the reset spring (223) is configured to always have a tendency to drive the lifting bracket (210) upward.

8. The in-situ heating and temperature maintaining device based on ultrasonic waves and suitable for dynamic loading of geopolymer, according to claim 7, characterized in that: Each of the four corners of the space formed by the first cover box (120) and the second cover box (130) is provided with a sleeve rod unit (220).

9. The in-situ heating and temperature maintaining device based on ultrasonic waves and suitable for dynamic loading of geopolymer, according to claim 1, characterized in that: Further comprising an output circuit (300); The output end of the output circuit (300) is located on the first cover box (120); The output circuit (300) passes through the test piece of the ultrasonic heating test system.

10. The in-situ heating and temperature maintaining device based on ultrasonic waves and suitable for dynamic loading of geopolymer, according to claim 9, characterized in that: Further comprising an adjusting circuit (400); The detection end of the adjusting circuit (400) is located on the first cover box (120); The adjusting circuit (400) controls the output power of the output circuit (300) through the temperature feedback of the detection end.

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