Temperature control device for ice block cryomechanical test and method thereof

Abstract

The application discloses a temperature control device for ice block low-temperature mechanical test and a method thereof, and belongs to the technical field of low-temperature mechanical test. The temperature control device comprises a temperature control mechanism, a heat preservation mechanism is arranged on the temperature control mechanism, the temperature control mechanism comprises a base and a cooling assembly, two bottom frames are fixedly connected to the top of the base, a fixing frame is fixedly connected to the top of each bottom frame, a test cavity is fixedly connected between the two fixing frames, the test cavity is connected with a refrigeration equipment through a hose at two sides, the refrigeration equipment is installed on the base through a support, and the two sides of the test cavity are connected with two ends of the cooling assembly. The upper sealing assembly is in contact with the bottom frame to generate a pushing force through the descending of the heat preservation cavity, the inflatable air bags are inflated and closely attached to each other at the moment, the test cavity can be kept closed, low-temperature overflow is reduced, the specified detection temperature can be quickly reached, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of low-temperature mechanical testing technology, and in particular to a temperature control device and method for low-temperature mechanical testing of ice. Background Technology

[0002] In research fields such as polar engineering, cold chain logistics, and ice and snow sports equipment, the low-temperature mechanical properties of ice are core technical parameters. These properties are highly correlated with the temperature environment in which the ice is located. Temperature fluctuations can cause changes in the internal crystal structure of the ice, directly affecting the accuracy of mechanical test data. Therefore, in low-temperature mechanical testing of ice, it is essential to maintain a stable temperature throughout the entire test using a temperature control device to ensure that the test results accurately reflect the mechanical properties of ice under specific low-temperature conditions. However, most existing temperature control devices are directly sealed structures. After testing one ice block, the machine must be stopped, the lid opened, the sample removed, a new sample placed, and the temperature lowered again. The entire sample change process is time-consuming, and opening the lid causes a large amount of low-temperature gas to escape, causing the temperature control space temperature to rise again. Lowering the temperature back to the target temperature requires an additional amount of time, resulting in extremely low test efficiency. Some multi-station devices require multiple sets of drive and temperature control modules, which can shorten the sample change time, but significantly increases equipment costs. Furthermore, switching stations during sample change can easily lead to incomplete sealing of the temperature control space, still resulting in problems such as low-temperature overflow.

[0003] To address the above problems, this invention proposes a temperature control device and method for low-temperature mechanical testing of ice. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing temperature control devices, which are mostly directly sealed structures. The entire sample change process is time-consuming, and opening the cover causes a large amount of low-temperature gas to escape, causing the temperature control space temperature to rise again. It takes an extra long time to lower the temperature back to the target temperature, resulting in extremely low test efficiency. Some multi-station devices require multiple sets of drive and temperature control modules, which can shorten the sample change time, but significantly increases the equipment cost. Furthermore, the switching of stations during sample change can easily lead to poor sealing of the temperature control space, and the problem of low-temperature overflow still exists. Therefore, this invention proposes a temperature control device and method for low-temperature mechanical testing of ice.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A temperature control device for low-temperature mechanical testing of ice blocks includes a temperature control mechanism, wherein a heat preservation mechanism is provided on the temperature control mechanism;

[0007] The temperature control mechanism includes a base and a cooling component. Two bottom frames are fixedly connected to the top of the base, and a fixing frame is fixedly connected to the top of the bottom frames. A test chamber is fixedly connected between the two fixing frames. The two sides of the test chamber are connected to a refrigeration device through flexible hoses. The refrigeration device is mounted on the base through a support. The two sides of the test chamber are connected to the two ends of the cooling component.

[0008] The insulation mechanism includes two arc-shaped plates and an insulation cavity. The two arc-shaped plates are fixedly connected to two bottom frames respectively. The insulation cavity is located in the test chamber. Four upper sealing components are connected in the insulation cavity. Each pair of upper sealing components corresponds to one bottom frame. A lower sealing component is provided in the insulation cavity. Steering and sealing control components are connected to both sides of the lower sealing component. The pulleys of the steering and sealing control components travel on the arc-shaped plates, and a rotation control component is connected to the steering and sealing control components.

[0009] Preferably, the cooling component includes a water tank, which is mounted on a base. Two water pumps are installed in the water tank. The water pumps are connected to the inlet of the water-cooling structure via water supply pipes. The water-cooling structure is installed in the test chamber. The outlet of the water-cooling structure is connected to a return pipe, which extends downward into the water tank.

[0010] Preferably, a detection device is provided above the test chamber;

[0011] Two adjusting cylinders are fixedly connected to the bottom of the insulation cavity, and the two adjusting cylinders are respectively fixedly installed on the two bottom frames;

[0012] The refrigeration equipment consists of an insulated box, two fans, and a steel cage. The insulated box contains dry ice, and the two fans are located at the flexible hoses connected to the insulated box.

[0013] Preferably, the lower sealing assembly includes a cavity, with edge airbags provided on both the upper and lower edges of the cavity, a reinforcing frame fixedly connected inside the cavity, and a clamp provided above the cavity.

[0014] Preferably, the rotation control assembly includes a guide rail, the bottom end of which is fixedly connected to the test chamber, a slide rail is slidably connected to the guide rail, a first spring is fixedly connected between the slide rail and the top end of the guide rail, and a rope is fixedly connected below the slide rail, the rope being wound on a rope reel.

[0015] Preferably, the steering and sealing control assembly includes a sealing shell, the rope reel is mounted on the sealing shell, and a torsion spring is fixedly connected between the sealing shell and the insulation cavity.

[0016] Preferably, a piston rod is provided in the sealing shell, and a second spring is fixedly connected between the piston rod and the inner wall of the sealing shell. The piston rod passes through the sealing shell and is fixedly connected to a pulley. One side of the sealing shell is connected to the partition cavity through a pipe, and the pipe is rotatably mounted on the heat insulation cavity through a bearing.

[0017] Preferably, the upper sealing assembly includes a piston cylinder, which is fixedly connected to the lower part of the insulation cavity. The piston cylinder is connected to a sealing airbag through a connecting pipe. The sealing airbag is disposed in the insulation cavity, and four sealing airbags are arranged around the inner circumference of the insulation cavity.

[0018] Preferably, a sealing plug is provided inside the piston cylinder, a third spring is fixedly connected between the sealing plug and the bottom wall of the piston cylinder, a push rod is provided through the sealing plug and the piston cylinder, and a fourth spring is fixedly connected between the top end of the push rod and the sealing plug.

[0019] A method for using a temperature control device for low-temperature mechanical testing of ice includes the following steps:

[0020] S1. A circulating cooling channel is formed between the refrigeration equipment and the test chamber to maintain a constant temperature in the test chamber. The water-cooling structure cools the inside of the test chamber. At the same time, the water pump inputs cooling water into the water-cooling structure through the water supply pipe to cool it down. The cooling water with heat is then returned to the water tank through the return pipe. This circulation heat exchange, together with the water-cooling structure, maintains the test chamber at the preset temperature value, so that the monitoring equipment can successfully perform low-temperature mechanical testing on the ice.

[0021] S2. After the test is completed, the adjusting cylinder drives the heat preservation chamber to move downward, so that the push rod contacts the bottom frame in advance and drives the sealing plug to move upward. The sealing plug inflates the sealing airbag upward, so that the sealing airbag expands and can fit tightly to seal the test chamber.

[0022] S3. Then the pulley moves to the concave surface of the arc plate. At this time, the elastic potential energy stored in the second spring is released and drives the piston rod to reset. The piston rod releases air through the pipe to the edge airbag, keeping the edge airbag deflated. As the sealing shell moves down, the first spring is stretched to its maximum extent, which in turn causes the rope reel to rotate and release the rope. This causes the sealing shell to rotate the pipe and the cavity to flip, so that the clamp faces down. At this time, the ice block is removed and the test is completed.

[0023] Compared with the prior art, the present invention provides a temperature control device and method for low-temperature mechanical testing of ice, which has the following beneficial effects:

[0024] 1. The temperature control device and method for low-temperature mechanical testing of ice blocks utilize the principle that the upper sealing component contacts the bottom frame to generate thrust as the insulation cavity descends. At this time, the sealing airbags expand and fit tightly together, thereby keeping the test chamber sealed, reducing low-temperature overflow, facilitating rapid attainment of the specified test temperature, and improving test efficiency.

[0025] 2. The temperature control device and method for low-temperature mechanical testing of ice blocks, after the test chamber is sealed by the upper sealing component, the pulley travels to the concave surface of the arc plate, the second spring drives the piston rod to reset, causing the edge airbag to contract, reducing the resistance between the edge airbag and the insulation chamber, facilitating the flipping and discharge of the compartment. During the flipping and discharge, the rotating control component drives the sealing shell to rotate, causing the lower sealing component to flip the tested ice block downwards, thereby achieving the purpose of convenient material removal.

[0026] 3. The temperature control device and method for low-temperature mechanical testing of ice blocks, through the cooperation of the upper sealing component and the bottom frame, can smoothly inflate four sealing airbags, keeping them tightly fitted to form a sealing barrier. This allows the subsequent rotation control component, in conjunction with the steering and sealing control components, to smoothly flip the lower sealing component for material feeding. This method ensures the sealing of the test chamber while also enabling individual material removal, greatly improving the flexibility and convenience of the testing work. Furthermore, during material feeding, the steering and sealing control components, in conjunction with the arc plate, can pre-seal the insulation chamber before the upper sealing component is opened, allowing the ice block to be tested to be smoothly inserted into the test chamber for testing. The cooperation between the structures effectively ensures the temperature control effect of the test chamber, reduces energy waste, ensures temperature control stability, and significantly improves testing efficiency.

[0027] 4. This invention relates to a temperature control device and method for low-temperature mechanical testing of ice. It achieves a wide temperature range and precise temperature control through two mechanisms: water-cooled structure refrigeration and refrigeration equipment-assisted refrigeration. Simultaneously, a water pump circulates cooling water to the water-cooled structure for heat exchange. This efficient heat dissipation system ensures long-term stable operation of the refrigeration structure. The closed air circulation loop and excellent insulation performance minimize energy loss. The device is compact, easy to operate, and provides a reliable and efficient experimental platform for studying the low-temperature mechanical properties of brittle materials such as ice. Attached Figure Description

[0028] Figure 1 This is a perspective view of a temperature control device for low-temperature mechanical testing of ice blocks proposed in this invention.

[0029] Figure 2 This is a perspective view of a refrigeration device for a temperature control apparatus used in low-temperature mechanical testing of ice blocks, as proposed in this invention.

[0030] Figure 3 This is a cross-sectional perspective view of a temperature control device for low-temperature mechanical testing of ice blocks proposed in this invention.

[0031] Figure 4 This is a perspective view of the test chamber of a temperature control device for low-temperature mechanical testing of ice blocks, as proposed in this invention.

[0032] Figure 5 This is a cross-sectional perspective view of the cooling component of a temperature control device for low-temperature mechanical testing of ice blocks, as proposed in this invention.

[0033] Figure 6 This is a perspective view of the connection between the fixing frame and the test chamber of a temperature control device for low-temperature mechanical testing of ice blocks, as proposed in this invention.

[0034] Figure 7 This is a perspective view of the insulation cavity of a temperature control device for low-temperature mechanical testing of ice blocks, as proposed in this invention.

[0035] Figure 8 This is a perspective view of the connection between the steering and sealing control components and the lower sealing component of a temperature control device for low-temperature mechanical testing of ice blocks according to the present invention.

[0036] Figure 9 This is a cross-sectional perspective view of the lower sealing assembly of a temperature control device for low-temperature mechanical testing of ice blocks, as proposed in this invention.

[0037] Figure 10 In this invention Figure 9 Enlarged view of point A;

[0038] Figure 11 This is a cross-sectional perspective view of the insulation cavity of a temperature control device for low-temperature mechanical testing of ice blocks proposed in this invention.

[0039] Figure 12 This is a cross-sectional perspective view of the upper sealing assembly of a temperature control device for low-temperature mechanical testing of ice blocks, as proposed in this invention.

[0040] In the diagram: 100, Temperature control mechanism; 101, Base; 102, Cooling component; 1021, Water tank; 1022, Water pump; 1023, Return pipe; 1024, Water supply pipe; 1025, Water-cooled structure; 103, Refrigeration equipment; 104, Test chamber; 105, Testing equipment; 106, Fixing frame; 107, Base frame; 200, Insulation mechanism; 201, Adjusting cylinder; 202, Insulation chamber; 203, Rotation control component; 2031, Guide rail; 2032, Slide rail; 2033, First spring; 2034, Rope; 2035, Rope reel; 2 04. Arc plate; 205. Steering and sealing control assembly; 2051. Sealing shell; 2052. Pulley; 2053. Second spring; 2054. Torsion spring; 2055. Pipe; 2056. Piston rod; 206. Lower sealing assembly; 2061. Chamber; 2062. Reinforcing frame; 2063. Edge airbag; 2064. Clamp; 207. Upper sealing assembly; 2071. Sealing plug; 2072. Third spring; 2073. Fourth spring; 2074. Push rod; 2075. Piston cylinder; 2076. Connecting pipe; 2077. Sealing airbag. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Example 1: Refer to Figures 1-3 and Figures 6-11 A temperature control device for low-temperature mechanical testing of ice blocks includes a temperature control mechanism 100 and a heat preservation mechanism 200 provided on the temperature control mechanism 100.

[0044] The temperature control mechanism 100 includes a base 101 and a cooling component 102. Two bottom frames 107 are fixedly connected to the top of the base 101. A fixing frame 106 is fixedly connected to the top of the bottom frames 107. A test chamber 104 is fixedly connected between the two fixing frames 106. A testing device 105 is provided above the test chamber 104.

[0045] The insulation mechanism 200 includes two arc-shaped plates 204 and an insulation cavity 202. Two adjusting cylinders 201 are fixedly connected to the lower part of the insulation cavity 202. The two adjusting cylinders 201 are respectively fixedly mounted on two bottom frames 107. The two arc-shaped plates 204 are respectively fixedly connected to the two bottom frames 107. The insulation cavity 202 is located within the test chamber 104. Four upper sealing components 207 are connected to the insulation cavity 202, with each pair of upper sealing components 207 corresponding to one bottom frame 107. A lower sealing component 206 is provided in the insulation cavity 202. The lower sealing component 206 includes a partition 2061. Edge airbags 2063 are provided on the upper and lower edges of the partition 2061. A reinforcing frame 2062 is fixedly connected inside the partition 2061. 2062 can reinforce the cavity 2061 to ensure its stability. A clamp 2064 is provided above the cavity 2061 to fix the ice block and ensure its stability. Steering and sealing control components 205 are connected to both sides of the lower sealing assembly 206. The steering and sealing control components 205 include a sealing shell 2051 and a rope coil 2035 installed on the sealing shell 2051. A torsion spring 2054 is fixedly connected between the sealing shell 2051 and the insulation cavity 202. The elastic potential energy of the torsion spring 2054 is greater than that of the first spring 2033, so that the first spring 2033 is pre-stretched to prevent the edge airbag 2063 from remaining sealed with the insulation cavity 202 and affecting the turning operation. A movable airbag is provided in the sealing shell 2051. A second spring 2053 is fixedly connected between the piston rod 2056 and the inner wall of the sealing shell 2051. The second spring 2053 can drive the piston rod 2056 to reset, thereby shrinking the edge airbag 2063, facilitating the subsequent flipping and unloading of the partition cavity 2061. The piston rod 2056 extends out of the sealing shell 2051 and is fixedly connected to the pulley 2052, which ensures smooth sliding and reduces resistance with the arc plate 204. One side of the sealing shell 2051 is connected to the partition cavity 2061 through a pipe 2055, and the pipe 2055 is rotatably mounted on the insulation cavity 202 through a bearing. The pipe 2055 can rotate through the bearing, thereby keeping the partition cavity 2061 rotating stably. The steering and sealing control assembly 205... The pulley 2052 travels on the arc plate 204, and the steering and sealing control assembly 205 is connected to the rotation control assembly 203. The rotation control assembly 203 includes a guide rail 2031, the bottom end of which is fixedly connected to the test chamber 104. A slide rail 2032 is slidably connected to the guide rail 2031. The slide rail 2032 can slide smoothly along the guide rail 2031, so that the first spring 2033 can maintain stable extension and contraction. The first spring 2033 is fixedly connected between the slide rail 2032 and the top end of the guide rail 2031. A rope 2034 is fixedly connected to the bottom of the slide rail 2032. The rope 2034 is wound on the rope disc 2035. The sealing shell 2051 can be smoothly driven to achieve rotational movement through the rope 2034 and the rope disc 2035.

[0046] In this embodiment: by adjusting the cylinder 201 to drive the insulation cavity 202 downward, the upper sealing component 207 seals the test cavity 104. Subsequently, the pulley 2052 moves to the concave surface of the arc plate 204, and the second spring 2053 drives the piston rod 2056 to reset, causing the edge airbag 2063 to contract, reducing the resistance between the edge airbag 2063 and the insulation cavity 202, which facilitates the flipping and discharge of the partition 2061. When flipping and discharging, the first spring 2033 reaches its maximum limit. At this time, the rope 2034 applies a force to the rope disc 2035, and the rope disc 2035 releases the rope 2034, causing the sealing shell 2051 to rotate. This causes the pipe 2055 to drive the lower sealing component 206 to flip the tested ice block downward, thereby achieving the purpose of convenient material removal.

[0047] Example 2: Refer to Figure 7 and Figures 11-12 A temperature control device for low-temperature mechanical testing of ice includes an upper sealing assembly 207, which includes a piston cylinder 2075. The piston cylinder 2075 is fixedly connected to the lower part of an insulation cavity 202. The piston cylinder 2075 is connected to a sealing airbag 2077 via a connecting pipe 2076. The sealing airbag 2077 is disposed in the insulation cavity 202, and four sealing airbags 2077 are arranged around the inner cavity of the insulation cavity 202. A sealing plug 2071 is disposed inside the piston cylinder 2075, and the sealing plug 2071 is disposed between the bottom wall of the piston cylinder 2075 and the sealing plug 2071. A third spring 2072 is fixedly connected. The elastic potential energy of the third spring 2072 is less than that of the fourth spring 2073, so that the push rod 2074 is subjected to force. The fourth spring 2073 can drive the sealing plug 2071 to move in advance, thereby inflating the sealing airbag 2077. After the sealing airbag 2077 is inflated, it remains in contact, thereby ensuring the sealing of the test chamber 104. The push rod 2074 is passed through the sealing plug 2071 and the piston cylinder 2075. The top of the push rod 2074 is fixedly connected to the sealing plug 2071 with the fourth spring 2073.

[0048] In this embodiment: the heat insulation cavity 202 descends, causing the push rod 2074 to contact the bottom frame 107, and driving the sealing plug 2071 to rise, so that the sealing plug 2071 inflates the sealing airbag 2077. The sealing airbags 2077 expand and fit tightly together, thereby keeping the test cavity 104 sealed, reducing low temperature overflow, facilitating rapid attainment of the specified detection temperature, and improving detection efficiency.

[0049] Example 3: Reference Figure 1 , Figures 6-8A temperature control device for low-temperature mechanical testing of ice blocks includes a heat preservation mechanism 200. The heat preservation mechanism 200 includes two arc-shaped plates 204 and a heat preservation cavity 202. The two arc-shaped plates 204 are respectively fixedly connected to two bottom frames 107. The heat preservation cavity 202 is located in the test cavity 104. Four upper sealing components 207 are connected in the heat preservation cavity 202. Each pair of upper sealing components 207 corresponds to one bottom frame 107. A lower sealing component 206 is provided in the heat preservation cavity 202. Both sides of the lower sealing component 206 are connected to a steering and sealing control component 205. The pulleys 2052 of the steering and sealing control component 205 travel on the arc-shaped plates 204, and a rotation control component 203 is connected to the steering and sealing control component 205.

[0050] In this embodiment: the upper sealing component 207 cooperates with the bottom frame 107 to smoothly inflate the four sealing airbags 2077, keeping them tightly fitted to form a sealing barrier. This allows the subsequent rotation control component 203 to cooperate with the steering and sealing control component 205 to smoothly flip the lower sealing component 206 for material feeding. This method ensures the sealing of the test chamber 104 while also enabling individual material removal, greatly improving the flexibility and convenience of the testing work. During material feeding, the steering and sealing control component 205, in conjunction with the arc plate 204, can pre-seal the insulation chamber 202 before the upper sealing component 207 is opened again, allowing the ice block to be tested to be smoothly inserted into the test chamber 104 for testing. The cooperation between the structures effectively ensures the temperature control effect of the test chamber 104, reduces energy waste, ensures temperature control stability, and significantly improves testing efficiency.

[0051] Example 4: Reference Figures 3-5A temperature control device for low-temperature mechanical testing of ice includes a test chamber 104. Both sides of the test chamber 104 are connected to a refrigeration device 103 via flexible hoses. The refrigeration device 103 consists of an insulated box, two fans, and a steel cage. When the fans are running, extremely low-temperature air cooled by dry ice inside the insulated box is sent into the test chamber 104 through the hoses. Simultaneously, the air inside the test chamber 104 is drawn back to the outer insulated box for further cooling, thus forming a closed air circulation loop. This design allows the cooling capacity of the dry ice to be efficiently and evenly transferred into the test chamber 104, working in conjunction with the refrigeration structure to achieve lower temperatures and faster cooling rates. The insulated box contains dry ice, and the two fans are located at the hoses connected to the insulated box. The refrigeration device 103... The test chamber 104 is mounted on the base 101 via a support. Both sides of the test chamber 104 are connected to the two ends of the cooling component 102. The cooling component 102 includes a water tank 1021. Cooling equipment can be added inside the water tank 1021 as needed to further cool the returning cooling water. The water tank 1021 is set on the base 101. Two water pumps 1022 are installed in the water tank 1021. The water pumps 1022 are connected to the inlet end of the water cooling structure 1025 through the water supply pipe 1024. The water cooling structure 1025 is installed in the test chamber 104. The water cooling structure 1025 can maintain the low temperature environment inside the test chamber 104, which is convenient for ice blocks to conduct low temperature mechanical tests. The outlet end of the water cooling structure 1025 is connected to a return pipe 1023, and the return pipe 1023 extends downward into the water tank 1021.

[0052] In this embodiment, the present invention achieves a wide temperature range and precise temperature control through two mechanisms: a water-cooled structure 1025 for refrigeration and a refrigeration device 103 for auxiliary refrigeration. Simultaneously, a water pump 1022 circulates cooling water to the water-cooled structure 1025 for heat exchange. This efficient heat dissipation system ensures long-term stable operation of the refrigeration structure. The closed air circulation loop and good insulation performance minimize energy loss. This device is compact, easy to operate, and provides a reliable and efficient experimental platform for studying the low-temperature mechanical properties of brittle materials such as ice.

[0053] A method for using a temperature control device for low-temperature mechanical testing of ice includes the following steps:

[0054] S1. A circulating cooling channel is formed between the refrigeration equipment 103 and the test chamber 104 to keep the temperature of the test chamber 104 constant. The water-cooling structure 1025 cools the inside of the test chamber 104. At the same time, the water pump 1022 inputs cooling water into the water-cooling structure 1025 through the water supply pipe 1024 to cool it down. The cooling water with heat is then fed into the water tank 1021 through the return pipe 1023. This circulating heat exchange, together with the water-cooling structure 1025, keeps the test chamber 104 at the preset temperature value, so that the monitoring equipment can successfully perform low-temperature mechanical testing on the ice.

[0055] S2. After the test is completed, the adjusting cylinder 201 moves the insulation chamber 202 downward, causing the push rod 2074 to pre-contact the bottom frame 107 and move the sealing plug 2071 upward. The sealing plug 2071 pre-deforms the third spring 2072 and inflates the sealing airbag 2077 upward, allowing the sealing airbag 2077 to expand and tightly seal the test chamber 104. The gas inside the sealing airbag 2077 stabilizes, allowing the push rod 2074 to move independently and deform the fourth spring 2073. Subsequently, the pulley 2052 moves to the concave surface of the arc plate 204. At this time, the third spring 2073... The elastic potential energy stored in the second spring 2053 is released, which drives the piston rod 2056 to reset. The piston rod 2056 then deflates the edge airbag 2063 through the pipe 2055, keeping the edge airbag 2063 deflated. As the sealing shell 2051 moves down, the first spring 2033 is stretched to its maximum extent, which in turn causes the rope disc 2035 to rotate and release the rope 2034. This causes the sealing shell 2051 to rotate, which in turn drives the torsion spring 2054 to store elastic potential energy. The sealing shell 2051 also causes the pipe 2055 and the cavity 2061 to flip, so that the clamp 2064 faces downward. At this point, the ice block is removed, and the test is completed.

[0056] S3. Re-clamp the ice block, adjust the cylinder 201 to drive the insulation chamber 202 to reset upwards, release the elastic potential energy of the torsion spring 2054, drive the sealing shell 2051 to rotate, and cause the partition 2061 to flip to keep the ice block facing upwards. At the same time, the first spring 2033 drives the slide rail 2032 to reset upwards. Then the pulley 2052 rises along the arc panel. At this time, the pulley 2052 drives the piston rod 2056 to move, causing the piston rod 2056 to drive the second spring 2053 to store elastic potential energy. At the same time, the piston rod 2056 inflates the edge airbag 2063 through the pipe 2055. The expansion of the edge airbag 2063 can maintain the seal with the insulation chamber 202. Then, the fourth spring 2073 drives the push rod 2074 to complete the reset. At the same time, the third spring 2072 drives the sealing plug 2071 to reset downwards, causing the sealing airbag 2077 to contract, allowing the ice block to smoothly enter the test chamber 104, and then the cyclic testing operation can be carried out.

[0057] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A temperature control device for low-temperature mechanical testing of ice, comprising a temperature control mechanism (100), characterized in that, The temperature control mechanism (100) is provided with a heat preservation mechanism (200). The temperature control mechanism (100) includes a base (101) and a cooling component (102). Two bottom frames (107) are fixedly connected to the top of the base (101). A fixing frame (106) is fixedly connected to the top of the bottom frame (107). A test chamber (104) is fixedly connected between the two fixing frames (106). The two sides of the test chamber (104) are connected to the refrigeration equipment (103) through hoses. The refrigeration equipment (103) is mounted on the base (101) through a support. The two sides of the test chamber (104) are connected to the two ends of the cooling component (102). The insulation mechanism (200) includes two arc-shaped plates (204) and an insulation cavity (202). The two arc-shaped plates (204) are fixedly connected to two bottom frames (107). The insulation cavity (202) is located in the test chamber (104). Four upper sealing components (207) are connected in the insulation cavity (202). Each pair of upper sealing components (207) corresponds to one bottom frame (107). A lower sealing component (206) is provided in the insulation cavity (202). Steering and sealing control components (205) are connected to both sides of the lower sealing component (206). The pulleys (2052) of the steering and sealing control components (205) travel on the arc-shaped plates (204), and a rotation control is connected to the steering and sealing control components (205). Component (203); a testing device (105) is provided above the test chamber (104); two adjusting cylinders (201) are fixedly connected to the lower part of the insulation chamber (202), and the two adjusting cylinders (201) are respectively fixedly installed on two bottom frames (107); the refrigeration device (103) consists of an insulation box, two fans and a steel cage, the insulation box is filled with dry ice, and the two fans are arranged at the hose connected to the insulation box; and the lower sealing component (206) includes a partition (2061), the upper and lower edges of the partition (2061) are provided with edge airbags (2063), the interior of the partition (2061) is fixedly connected with a reinforcing frame (2062), and a clamp (2064) is provided above the partition (2061).Furthermore, the rotation control component (203) includes a guide rail (2031), the bottom end of which is fixedly connected to the test chamber (104). A slide rail (2032) is slidably connected to the guide rail (2031). A first spring (2033) is fixedly connected between the slide rail (2032) and the top end of the guide rail (2031). A rope (2034) is fixedly connected below the slide rail (2032), and the rope (2034) is wound on a rope reel (2035). The steering and sealing control... The control assembly (205) includes a sealing shell (2051), a rope reel (2035) mounted on the sealing shell (2051), a torsion spring (2054) fixedly connected between the sealing shell (2051) and the insulation cavity (202), a piston rod (2056) disposed in the sealing shell (2051), a second spring (2053) fixedly connected between the piston rod (2056) and the inner wall of the sealing shell (2051), and the piston rod (2056) extending out of the sealing shell (2051) and connecting with a pulley (2052). The sealing shell (2051) is fixedly connected to the cavity (2061) via a pipe (2055), and the pipe (2055) is rotatably mounted on the insulation cavity (202) via a bearing. The upper sealing assembly (207) includes a piston cylinder (2075), which is fixedly connected to the lower part of the insulation cavity (202). The piston cylinder (2075) is connected to the sealing airbag (2077) via a connecting pipe (2076), and the sealing airbag (2077) is disposed in the insulation cavity (202). In the insulation cavity (202), four sealing airbags (2077) are arranged around the inner circumference of the insulation cavity (202), and a sealing plug (2071) is provided inside the piston cylinder (2075). A third spring (2072) is fixedly connected between the sealing plug (2071) and the bottom wall of the piston cylinder (2075). A push rod (2074) is passed through the sealing plug (2071) and the piston cylinder (2075), and a fourth spring (2073) is fixedly connected between the top end of the push rod (2074) and the sealing plug (2071).

2. The temperature control device for low-temperature mechanical testing of ice blocks according to claim 1, characterized in that, The cooling component (102) includes a water tank (1021), which is mounted on a base (101). Two water pumps (1022) are installed in the water tank (1021). The water pumps (1022) are connected to the inlet of the water-cooling structure (1025) via a water supply pipe (1024). The water-cooling structure (1025) is installed in the test chamber (104). The outlet of the water-cooling structure (1025) is connected to a return pipe (1023), which extends downward into the water tank (1021).

3. The method of using the temperature control device for low-temperature mechanical testing of ice according to claim 2, characterized in that, Includes the following steps: S1. A circulating cooling channel is formed between the refrigeration equipment (103) and the test chamber (104) to keep the temperature of the test chamber (104) constant. The water-cooled structure (1025) cools the inside of the test chamber (104). At the same time, the water pump (1022) inputs cooling water into the water-cooled structure (1025) through the water pipe (1024) to cool it down. The cooling water with heat is then fed into the water tank (1021) through the return pipe (1023) to circulate heat exchange. In conjunction with the water-cooled structure (1025), the test chamber (104) is kept at the preset temperature value so that the monitoring equipment can successfully perform low-temperature mechanical testing on the ice. S2. After the test is completed, the adjusting cylinder (201) drives the heat preservation chamber (202) to move downward, so that the push rod (2074) contacts the bottom frame (107) in advance, and drives the sealing plug (2071) to move upward. The sealing plug (2071) inflates the sealing air bag (2077) upward, so that the sealing air bag (2077) expands and fits tightly, sealing the test chamber (104). S3. Then the pulley (2052) moves to the concave surface of the arc plate (204). At this time, the elastic potential energy stored in the second spring (2053) is released, and the piston rod (2056) is reset. The piston rod (2056) releases air into the edge airbag (2063) through the pipe (2055), keeping the edge airbag (2063) deflated. As the sealing shell (2051) moves down, the first spring (2033) is stretched to its maximum extent, which causes the rope disc (2035) to rotate and release the rope (2034). The sealing shell (2051) causes the pipe (2055) and the cavity (2061) to flip, so that the clamp (2064) faces down. At this time, the ice is removed to complete the test.

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