Detachable environment low-temperature box and installation method thereof

Abstract

The invention discloses a detachable environment low-temperature box and an installation method thereof. The detachable environment low-temperature box comprises a low-temperature box body, a low-temperature box cover plate arranged above the low-temperature box body and fixedly connected with the low-temperature box body, and buffer limiting devices arranged on the two sides of the low-temperature box body. The low-temperature box body comprises an upper end face frame, a lower end face frame and vertical beams connected between the upper end face frame and the lower end face frame, the upper end face frame, the lower end face frame and the low-temperature box cover plate all comprise main cross beams and main longitudinal beams, and the main cross beams and the main longitudinal beams are connected through connecting node modules; middle cross beams and middle longitudinal beams which are connected with the vertical beams are arranged between the upper end face frame and the lower end face frame, and the middle cross beams or the middle longitudinal beams and the vertical beams are fixedly connected with the connecting node modules through movable clamping pins. The system is modularized, is high in flexibility, has very high feasibility, and does not affect the normal operation of the original equipment after being withdrawn.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental low temperature boxes, and in particular relates to a detachable environmental low temperature box and an installation method thereof. Background Art

[0002] With the continuous development of structural engineering testing technology, especially the study of the performance of materials and structures in extreme environments, low-temperature impact testing, as an important testing method, has been widely used to evaluate the durability, strength and failure behavior of structures at low temperatures. In these tests, the response of materials or structures to external force impact at low temperatures is simulated, which is of great significance for the study of the brittleness, plastic deformation, failure mode and other mechanical properties of materials.

[0003] At present, many low-temperature test chambers have been developed to simulate the performance of materials under different low-temperature environments, among which multifunctionality and modularity are the main trends in their design and development. For example, the patent with application number 202310099246.8 discloses an assembleable high and low temperature chamber system to adapt to different storage size requirements. At the same time, most of the existing low-temperature test chambers focus on stable environmental control and continuous stability of test conditions, and attach importance to storage functions, which is not enough in the field of engineering structure testing. In general tests, such as drop hammer impact tests, the test chamber needs to be able to quickly and promptly detach from the specimen while meeting the requirements of stable low-temperature storage to ensure the smooth fall of the drop hammer and avoid damaging the low-temperature chamber. At the same time, the specimen needs to be stored in the low-temperature chamber until the moment before the experiment, and the test equipment needs to be placed in a normal temperature environment to avoid low temperature affecting its normal operation. This is also the main limitation of the existing low-temperature chamber system in impact simulation.

[0004] Therefore, there is an urgent need for a new cryogenic box that can not only stably control the low temperature environment, but also be able to destroy or withdraw in time to ensure the smooth implementation of the drop hammer impact test, and have sufficient safety, reliability and economy to meet the requirements of multiple tests and avoid unnecessary extravagance and waste. It can smoothly simulate the destructive behavior of the structure after being impacted. This system should have certain destructive characteristics, be able to simulate the actual destructive process during the drop hammer impact process, and improve the safety and reliability of the experiment while ensuring the test accuracy. Summary of the invention

[0005] In view of the above problems, the present invention proposes a low-temperature box that can be disassembled and locally destroyed. The low-temperature box is flexible and convenient to assemble and transfer, and the size of the destruction area is adjustable. At the same time, it can achieve a stable and controllable low-temperature environment, which is convenient for modifying existing drop hammer test equipment and has high practical value.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A detachable environmental low temperature box, comprising: a low temperature box body, a low temperature box cover plate arranged above the low temperature box body and fixedly connected to the low temperature box body, and a buffer limit device arranged on both sides of the low temperature box body;

[0008] The cryogenic box body comprises an upper end face frame, a lower end face frame and a vertical beam connected between the upper end face frame and the lower end face frame, and the upper end face frame, the lower end face frame and the cryogenic box cover plate all comprise a main cross beam and a main longitudinal beam, and the main cross beam and the main longitudinal beam are connected by connecting node modules;

[0009] An intermediate cross beam and an intermediate longitudinal beam connected to the vertical beam are arranged between the upper end face frame and the lower end face frame. The intermediate cross beam or the intermediate longitudinal beam and the vertical beam are fixedly connected to the connection node module via a movable bayonet.

[0010] Furthermore, the low temperature box cover plate and the upper end surface frame are fixedly connected;

[0011] A thermal insulation panel composed of a plurality of thermal insulation board basic units is provided between the main cross beam and the main longitudinal beam of the low temperature box cover;

[0012] All surfaces other than the upper end surface of the low temperature box body are provided with insulation panels;

[0013] A polyimide film plate is provided between the main cross beam and the main longitudinal beam of the upper end surface frame.

[0014] Furthermore, the basic unit of the thermal insulation board comprises a glass fiber wool environmentally friendly flame retardant material interlayer and a stainless steel panel bonded and cured to the upper and lower end surfaces of the glass fiber wool environmentally friendly flame retardant material interlayer;

[0015] The basic unit of the thermal insulation board is provided with countersunk holes around it, and the middle positions of the four corners of the glass fiber cotton environmentally friendly flame retardant material interlayer are provided with connection block installation grooves, and a through hole is provided below the connection block installation groove;

[0016] The insulation panel is placed in the connection block installation groove of the adjacent insulation board basic unit through the connection block, and the connection screw sequentially penetrates the countersunk holes around the insulation board basic unit, the connection block and the through hole provided under the connection block installation groove to realize assembly;

[0017] The insulation board is connected to the main crossbeam and the main longitudinal beam through a connecting block with one end placed in the connecting block installation groove of the adjacent insulation board basic unit, and the other end embedded in the profile groove of the main crossbeam and the main longitudinal beam of the upper end face frame.

[0018] Furthermore, the polyimide film board is connected to the main crossbeam and main longitudinal beam of the upper end face frame through a movable pin, the edge of the polyimide film board is embedded in one end of the movable pin, and the other end of the movable pin is embedded in the profile groove of the main crossbeam and main longitudinal beam of the low temperature box cover.

[0019] Furthermore, the connection node module is a regular hexahedron structure, which is hollow inside, and a connection block installation groove is provided in the middle of each side of the hexahedron structure;

[0020] A circular through hole is provided in the center of the six faces of the connection node module, and a rectangular through slot connected to the circular through hole is provided in a direction perpendicular to each side of the regular hexahedron to form a special-shaped hole, and the special-shaped hole is located on one side inside the regular hexahedron structure and is aligned with the four vertices to form a rectangular concave slot, a limiting pin is provided in the middle of the rectangular concave slot, and the length and width of the rectangular concave slot are consistent with the rectangular through slot.

[0021] Furthermore, a rotating bayonet connected to the main cross beam or the main longitudinal beam is provided inside the connection node module, and the rotating bayonet includes an annular body and four latches arranged around the annular body, and the latches match the rectangular concave slot and the rectangular through-slot on the connection node module in size, and the end of the latch has a spherical groove, and its size and shape are consistent with the limit bayonet of the connection node module;

[0022] The connecting bolts pass through the rotating bayonet and the special-shaped holes of the connecting node modules in sequence from the inside of the connecting node modules and are fixedly connected to the ends of the main cross beam or the main longitudinal beam profiles.

[0023] Furthermore, one end of the movable bayonet is embedded in the profile groove of the vertical beam, and the other end is fixedly connected to a connecting bolt that passes through the rotating bayonet and the special-shaped hole of the connecting node module in sequence from the inside of the connecting node module.

[0024] Furthermore, the buffer limit device includes limit brackets, buffer spring columns and rubber blocks arranged on both sides of the low temperature box body;

[0025] The buffer spring column is arranged on both sides of the limiting bracket, the rubber block is arranged on the top of the limiting bracket, and the height of the rubber block is lower than the height of the buffer spring column at its natural length.

[0026] Furthermore, the buffer spring strut includes a thick support column arranged below and a thin support column slidably connected to the thick support column, an end plate is provided on the top of the thin support column, and a spring is installed outside the thin support column.

[0027] On the other hand, the present invention provides a method for installing a detachable low-temperature ambient temperature box, which includes the following steps:

[0028] Step 1. Determine the connection sequence according to the number of basic units of thermal insulation board used on each surface of the low-temperature box, place the connection blocks in the connection block installation grooves of adjacent basic units of thermal insulation board, and use the connection screws to sequentially penetrate the countersunk holes around the basic units of thermal insulation board, the connection blocks, and the through holes provided under the connection block installation grooves to assemble the thermal insulation panels;

[0029] Step 2: From bottom to top, first assemble the main cross beam and main longitudinal beam of the lower end frame through the connection node module, and install and fix them in the order of inserting the rotating pin, rotating the rotating pin to fix, and installing the connecting bolts; after installing the bottom longitudinal beam, put in the bottom insulation panel and embed and fix it with the main cross beam and main longitudinal beam of the lower end frame;

[0030] Step 3: Install four vertical beams and fix them to the lower end frame, then install the insulation panels on the other four surfaces of the low-temperature box body one by one, and install the middle cross beam or middle longitudinal beam on the four vertical beams;

[0031] Step 4: Install two main cross beams and one main longitudinal beam of the upper end frame, then push the movable bayonet into the profile grooves of the two main cross beams and one main longitudinal beam, embed the edge of the polyimide film plate into one end of the movable bayonet, and then install the remaining main longitudinal beam;

[0032] Step 5: Install the low temperature box cover. The installation steps are the same as the lower end frame. After the external installation is completed, the whole is hoisted and installed on the upper end frame.

[0033] Step 6: Install the buffer limit device, set the buffer spring column on both sides of the limit bracket and both sides of the low temperature box body, set the rubber block on the top of the limit bracket, and the height of the rubber block is lower than the height of the buffer spring column at its natural length.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] (1) The designed partially destructible insulated box system can simultaneously meet the requirements of long-term low-temperature storage and local destruction, meeting specific engineering testing needs. Its design concept has broad application prospects in the transformation of a wide range of engineering mechanics test equipment such as drop hammer test and extrusion test;

[0036] (2) The insulation board splicing design involved is simple and efficient, and the size and area are adjustable. Compared with the existing structure, the splicing scheme does not rely on specific positioning and matching, the connection structure types are relatively small, and the assembly scheme is clear, which can significantly improve the reliability and efficiency of assembly;

[0037] (3) The frame connection structure involved has strong structural versatility, and the installation and removal process is convenient and simple. Compared with the existing low-temperature box design, the system is modular and flexible, and has strong feasibility. After removal, it will not affect the normal operation of the original equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a schematic diagram of the overall structure of the low temperature box of the present invention.

[0040] Figure 2 This is a schematic diagram of the structure of the low temperature box cover plate of the present invention.

[0041] Figure 3 It is a schematic diagram of the assembly structure of the thermal insulation panel structure of the present invention.

[0042] Figure 4 It is a schematic diagram of the basic unit structure of the thermal insulation board of the present invention.

[0043] Figure 5 It is a schematic diagram of the connecting block structure of the present invention.

[0044] Figure 6 It is a schematic diagram of the cross beam, longitudinal beam and vertical beam profile structure of the present invention.

[0045] Figure 7 This is a schematic diagram of the external structure of the connection node module of the present invention.

[0046] Figure 8 It is a schematic diagram of the internal structure of the connection node module of the present invention.

[0047] Fig. 9 It is a schematic diagram of the installation of the connecting node module and the rotating bayonet of the present invention.

[0048] Fig.10 It is a schematic diagram of the connection node module and the installation of the connection node module of the present invention.

[0049] Fig.11 It is a schematic diagram of the connection between the polyimide film plate and the movable bayonet pin of the present invention.

[0050] Fig.12 It is a schematic diagram of the movable bayonet connection of the present invention.

[0051] Fig.13 This is a schematic diagram of the connection between the movable latch and the profile of the present invention.

[0052] Fig.14 It is a schematic diagram of the structure of the buffer limit device of the present invention.

[0053] Fig.15 It is an overall schematic diagram of the drop weight test device of the present invention.

[0054] In the figure:

[0055] 10-cold box cover: 11-main crossbeam, 111-profile groove, 12-main longitudinal beam, 13-insulation panel, 131-insulation board basic unit, 1311-glass fiber wool environmentally friendly flame retardant material interlayer, 1312-stainless steel panel, 1313-connection block installation groove, 1314-countersunk hole, 1315-through hole, 132-connection block, 133-connection screw;

[0056] 20-low temperature box body: 21-upper end face frame, 22-lower end face frame, 23-middle cross beam, 24-middle longitudinal beam frame, 25-vertical beam, 26-connecting node module, 261-connecting block mounting groove, 262-special-shaped hole, 2621-circular through hole, 2622-rectangular through slot, 263-rectangular concave slot, 264-limiting bayonet, 264-rotating bayonet, 2641-annular body, 2642-tongue, 2643-spherical groove, 265-connecting bolt, 27-polyimide film plate, 28-movable bayonet, 29-movable bayonet;

[0057] 30-buffer limit device, 31-limit bracket, 32-buffer spring column, 321-thick support column, 322-thin support column, 323-end plate, 324-spring, 33-rubber block;

[0058] 40- Drop weight test device;

[0059] 50- control system;

[0060] 60-Liquid nitrogen system. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] It should be noted that, in the description of the embodiments of the present invention, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "include one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0063] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0064] Example 1

[0065] like Figure 1 As shown, this embodiment provides a detachable environmental low temperature box, comprising: a low temperature box body, a low temperature box cover plate arranged above the low temperature box body and fixedly connected to the low temperature box body, and a buffer limit device arranged on both sides of the low temperature box body;

[0066] The cryogenic box body includes an upper end frame, a lower end frame, and a vertical beam connected between the upper end frame and the lower end frame. The upper end frame, the lower end frame, and the cryogenic box cover plate all include a main cross beam and a main longitudinal beam. The main cross beam and the main longitudinal beam are connected by connecting node modules.

[0067] An intermediate cross beam and an intermediate longitudinal beam connected to the vertical beam are arranged between the upper end face frame and the lower end face frame. The intermediate cross beam or the intermediate longitudinal beam and the vertical beam are fixedly connected to the connection node module through a movable bayonet.

[0068] The cryogenic box cover plate is fixedly connected to the upper end surface frame;

[0069] like Figure 2-4 As shown, an insulation panel composed of a plurality of insulation board basic units is provided between the main cross beam and the main longitudinal beam of the low temperature box cover;

[0070] The basic unit of the insulation board is composed of a sus304 stainless steel panel and a glass fiber wool environmentally friendly flame retardant material interlayer. In this embodiment, the overall size of the basic unit of the insulation board is 500mm×500mm×120mm. The sus304 stainless steel panel provides overall strength and anti-rust and anti-corrosion properties, and its thickness is 10mm. The glass fiber wool environmentally friendly flame retardant material interlayer has good thermal insulation, and its thermal conductivity is usually between 0.030 and 0.050W / mK, and its thickness is 100mm. The basic unit of the insulation board has countersunk holes all around, with an opening diameter of 6mm, a countersunk hole diameter of 10mm, and an opening position 12.5mm from the edge to ensure the overall flatness of the board splicing. Glue is used to bond and fix the panel and the interlayer. At the same time, a connection block installation groove with a thickness of 15mm and a width of 25mm is opened in the middle position of the glass fiber wool, and a through hole with a diameter of 6mm is opened in the middle position below the connection block installation groove, so that the tensile load between the insulation boards can be transmitted through the connector to avoid damage to the board unit.

[0071] The insulation panel is placed in the connection block installation groove of the adjacent insulation board basic unit through the connection block, and the connection screws sequentially penetrate the countersunk holes around the insulation board basic unit, the connection block and the through holes under the connection block installation groove to achieve assembly.

[0072] like Figure 5 As shown, the connecting block in this embodiment has a size of 50mm×50mm×15mm and is made of aluminum alloy material. It has holes in the four corners with a hole diameter of 6mm. The hole position is 12.5mm away from the edge. It is connected by connecting bolts with a length of 120mm. After the overall connection, the surface of the insulation board is flat.

[0073] like Figure 6 As shown, the main cross beam, main longitudinal beam, vertical beam, middle cross beam and middle longitudinal beam are all 3030 heavy industrial aluminum profiles with a cross-sectional width of 120mm×120mm. The lengths of the main cross beam, main longitudinal beam, vertical beam, middle cross beam and middle longitudinal beam are 1500mm, 1500mm and 1000mm respectively. The frame ends and frame sides are connected to other components through universal connection node modules, and profile grooves are provided on the sides of the profiles.

[0074] like Figure 7-8 As shown, the connection node module is an aluminum alloy regular hexahedron structure, which is hollow inside, and a connection block installation groove is provided in the middle of each edge of the hexahedron structure;

[0075] Circular through holes are provided in the centers of the six faces of the connection node module. The circular through holes are provided perpendicular to the directions of the sides of the regular hexahedron with rectangular through slots connected to the circular through holes to form special-shaped holes. The special-shaped holes have a fool-proof design and the basic aperture is 20 mm.

[0076] The special-shaped hole is located on one side of the regular hexahedron structure and is aligned with the four vertices to form a rectangular concave slot. A limiting pin is provided in the middle of the rectangular concave slot. The length and width of the rectangular concave slot are consistent with those of the rectangular through slot.

[0077] The rotating bayonet includes an annular body and four bayonet tongues arranged around the annular body. The bayonet tongues match the rectangular concave slots and rectangular through slots on the connection node module in size. The end of the bayonet tongue has a spherical groove, and its size and shape are consistent with the limit bayonet tongue of the connection node module.

[0078] The connecting bolts pass through the rotating bayonet and the special-shaped holes of the connecting node modules in sequence from the inside of the connecting node modules and are fixedly connected to the ends of the main cross beam or the main longitudinal beam profiles.

[0079] like Fig. 9 As shown, for the connection of the end of the profile, first put the rotating bayonet into the connection node module, then rotate it 45 degrees, press it into position, and fix it in the connection node module. The rotating bayonet has an outer diameter of 30mm and an inner diameter of 20mm. Four latches are set around the bayonet ring, which match the size of the groove on the node module. There is a spherical groove at the end of the latch, and its size is consistent with the size of the limited bayonet in the middle of the node module slot. After the rotating bayonet is connected to the node module, the universal connection node module is connected to the profile through the connecting bolt. The basic steps are as follows: Fig. 9 As shown in (a), 9(b), and 9(c).

[0080] like Fig.10 As shown in (a), 10(b) and 10(c), the cover plate of the low temperature box and the upper end face frame are fixedly connected to each other through the connecting node module, and two rotating pins are placed in the middle, a bolt is placed on one side and a nut is placed on the other side. The nut also has a slot for easy fixation.

[0081] like Figure 11-12 As shown, the polyimide film plate is connected to the main crossbeam and main longitudinal beam of the upper end face frame through a movable bayonet, the edge of the polyimide film plate is embedded in one end of the movable bayonet, and the other end of the movable bayonet is embedded in the profile groove of the main crossbeam and main longitudinal beam of the low temperature box cover. The cover is made of polyimide material, which has good light transmittance and thermal insulation performance. Its thermal insulation coefficient is about 0.12 to 0.30 W / (m·K). It has good flexibility at room temperature, but has a certain degree of brittleness at extremely low temperatures. Prefabricated cracks are opened on the lower surface of the insulation cover to meet its destruction requirements under collision loads.

[0082] like Fig.13 As shown, for the connection on the side of the profile, similarly, first fix the rotating pin inside, then put the movable pin into the groove of the profile, and fix the profile and the universal connection node module by connecting bolts.

[0083] like Fig.14 As shown, the buffer limit device includes limit brackets, buffer spring columns and rubber blocks arranged on both sides of the low temperature box body;

[0084] The buffer spring column is arranged on both sides of the limit bracket, the rubber block is arranged on the top of the limit bracket, and the setting height of the rubber block is lower than the height of the buffer spring column under the natural length.

[0085] The buffer spring support comprises a thick support column arranged at the bottom and a thin support column slidably connected to the thick support column. An end plate is arranged on the top of the thin support column, and a spring is installed outside the thin support column.

[0086] In this embodiment, the limit device is 1200 mm high, the buffer spring is 1250 mm high, the rubber pad is 20 mm high, and the limit device is rigidly connected to the base of the test equipment to prevent the falling hammer from colliding with the low-temperature environmental box and thus damaging the environmental box.

[0087] Example 2

[0088] This embodiment provides a method for installing a detachable low-temperature ambient temperature box, and installing the low-temperature ambient temperature box includes the following steps:

[0089] Step 1. Determine the connection sequence according to the number of basic units of thermal insulation board used on each surface of the low-temperature box, place the connection blocks in the connection block installation grooves of adjacent basic units of thermal insulation board, and use the connection screws to sequentially penetrate the countersunk holes around the basic units of thermal insulation board, the connection blocks, and the through holes provided under the connection block installation grooves to assemble the thermal insulation panels;

[0090] Step 2: From bottom to top, first assemble the main cross beam and main longitudinal beam of the lower end frame through the connection node module, and install and fix them in the order of inserting the rotating pin, rotating the rotating pin to fix, and installing the connecting bolts; after installing the bottom longitudinal beam, put in the bottom insulation panel and embed and fix it with the main cross beam and main longitudinal beam of the lower end frame;

[0091] Step 3: Install four vertical beams and fix them to the lower end frame, then install the insulation panels on the other four surfaces of the low-temperature box body one by one, and install the middle cross beam or middle longitudinal beam on the four vertical beams;

[0092] Step 4: Install two main cross beams and one main longitudinal beam of the upper end frame, then push the movable bayonet into the profile grooves of the two main cross beams and one main longitudinal beam, embed the edge of the polyimide film plate into one end of the movable bayonet, and then install the remaining main longitudinal beam;

[0093] Step 5: Install the low temperature box cover. The installation steps are the same as the lower end frame. After the external installation is completed, the whole is hoisted and installed on the upper end frame.

[0094] Step 6: Install the buffer limit device, set the buffer spring column on both sides of the limit bracket and both sides of the low temperature box body, set the rubber block on the top of the limit bracket, and the height of the rubber block is lower than the height of the buffer spring column at its natural length.

[0095] This embodiment uses an installed environmental low temperature box to carry out the drop hammer test. The low temperature box system is suitable for the destructive characteristics of the drop hammer impact test and is easy to install and remove, thereby providing more accurate experimental data for the reliability research of materials and structures. Fig.15 As shown, it includes: a drop hammer test device, an environmental low temperature box, a control system and a liquid nitrogen system. The drop hammer test device is installed above the environmental low temperature box, and the temperature control system and the piping system are installed; after the temperature stabilizes, the test piece and the test equipment are installed; before the test begins, the cover of the low temperature box is removed and the test is carried out; after the test is completed, the upper crossbeam is removed, and the next insulation board is installed to carry out the next test, and the above steps are repeated until the test is completed.

[0096] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detachable low-temperature environment box, characterized in that: include: A cryogenic box body, a cryogenic box cover plate arranged above the cryogenic box body and fixedly connected to the cryogenic box body, and buffer limit devices arranged on both sides of the cryogenic box body; The cryogenic box body comprises an upper end face frame, a lower end face frame and a vertical beam connected between the upper end face frame and the lower end face frame, and the upper end face frame, the lower end face frame and the cryogenic box cover plate all comprise a main cross beam and a main longitudinal beam, and the main cross beam and the main longitudinal beam are connected by connecting node modules; An intermediate cross beam and an intermediate longitudinal beam connected to the vertical beam are arranged between the upper end face frame and the lower end face frame. The intermediate cross beam or the intermediate longitudinal beam and the vertical beam are fixedly connected to the connection node module via a movable bayonet.

2. A detachable low-temperature environment box according to claim 1, characterized in that: The low temperature box cover plate is fixedly connected to the upper end surface frame; A thermal insulation panel composed of a plurality of thermal insulation board basic units is provided between the main cross beam and the main longitudinal beam of the low temperature box cover; All surfaces other than the upper end surface of the low temperature box body are provided with insulation panels; A polyimide film plate is provided between the main cross beam and the main longitudinal beam of the upper end surface frame.

3. A detachable low-temperature environment box according to claim 2, characterized in that: The basic unit of the thermal insulation board comprises a glass fiber wool environmentally friendly flame retardant material interlayer and a stainless steel panel bonded and cured to the upper and lower end surfaces of the glass fiber wool environmentally friendly flame retardant material interlayer; The basic unit of the thermal insulation board is provided with countersunk holes on the upper and lower sides, and the middle positions of the four corners of the glass fiber cotton environmentally friendly flame retardant material interlayer are provided with connection block installation grooves, and a through hole is provided below the connection block installation groove; The insulation panel is placed in the connection block installation groove of the adjacent insulation board basic unit through the connection block, and the connection screw sequentially penetrates the countersunk holes around the insulation board basic unit, the connection block and the through hole provided under the connection block installation groove to realize assembly; The insulation board is connected to the main crossbeam and the main longitudinal beam through a connecting block with one end placed in the connecting block installation groove of the adjacent insulation board basic unit, and the other end embedded in the profile groove of the main crossbeam and the main longitudinal beam of the upper end face frame.

4. A detachable low-temperature environment box according to claim 2, characterized in that: The polyimide film plate is connected to the main crossbeam and main longitudinal beam of the upper end face frame through a movable bayonet, the edge of the polyimide film plate is embedded in one end of the movable bayonet, and the other end of the movable bayonet is embedded in the profile groove of the main crossbeam and main longitudinal beam of the low temperature box cover.

5. The detachable low-temperature environment box according to claim 1, characterized in that: The connection node module is a regular hexahedron structure, which is hollow inside, and a connection block installation groove is provided in the middle of each side of the hexahedron structure; A circular through hole is provided in the center of the six faces of the connection node module, and a rectangular through slot connected to the circular through hole is provided in a direction perpendicular to each side of the regular hexahedron to form a special-shaped hole, and the special-shaped hole is located on one side inside the regular hexahedron structure and is aligned with the four vertices to form a rectangular concave slot, a limiting pin is provided in the middle of the rectangular concave slot, and the length and width of the rectangular concave slot are consistent with the rectangular through slot.

6. A detachable low-temperature environment box according to claim 5, characterized in that: A rotating bayonet connected to the main crossbeam or the main longitudinal beam is provided inside the connection node module, and the rotating bayonet includes an annular body and four latches arranged around the annular body, and the latches match the rectangular concave slot and the rectangular through-slot on the connection node module in size, and a spherical groove is provided at the end of the latch, and its size and shape are consistent with the limit bayonet of the connection node module; The connecting bolts pass through the rotating bayonet and the special-shaped holes of the connecting node modules in sequence from the inside of the connecting node modules and are fixedly connected to the ends of the main cross beam or the main longitudinal beam profiles.

7. A detachable low-temperature environment box according to claim 6, characterized in that: One end of the movable bayonet is embedded in the profile groove of the vertical beam, and the other end is fixedly connected to a connecting bolt that passes through the rotating bayonet and the special-shaped hole of the connecting node module in sequence from the inside of the connecting node module.

8. The detachable low-temperature environment box according to claim 1, characterized in that: The buffer limit device comprises limit brackets, buffer spring columns and rubber blocks arranged on both sides of the low temperature box body; The buffer spring column is arranged on both sides of the limiting bracket, the rubber block is arranged on the top of the limiting bracket, and the setting height of the rubber block is lower than the height of the buffer spring column under its natural length.

9. A detachable low-temperature environment box according to claim 8, characterized in that: The buffer spring strut comprises a thick support column arranged at the bottom and a thin support column slidably connected to the thick support column, an end plate is arranged on the top of the thin support column, and a spring is installed outside the thin support column.

10. A method for installing a detachable low-temperature ambient temperature box, comprising installing the low-temperature ambient temperature box according to any one of claims 1 to 9, wherein: The steps include: Step 1. Determine the connection sequence according to the number of basic units of thermal insulation board used on each surface of the low-temperature box, place the connection blocks in the connection block installation grooves of adjacent basic units of thermal insulation board, and use the connection screws to sequentially penetrate the countersunk holes around the basic units of thermal insulation board, the connection blocks, and the through holes provided under the connection block installation grooves to assemble the thermal insulation panels; Step 2: From bottom to top, first assemble the main cross beam and main longitudinal beam of the lower end frame through the connection node module, and install and fix them in the order of inserting the rotating pin, rotating the rotating pin to fix, and installing the connecting bolts; after installing the bottom longitudinal beam, put in the bottom insulation panel and embed and fix it with the main cross beam and main longitudinal beam of the lower end frame; Step 3: Install four vertical beams and fix them to the lower end frame, then install the insulation panels on the other four surfaces of the low-temperature box body one by one, and install the middle cross beam or middle longitudinal beam on the four vertical beams; Step 4: Install two main cross beams and one main longitudinal beam of the upper end frame, then push the movable bayonet into the profile grooves of the two main cross beams and one main longitudinal beam, embed the edge of the polyimide film plate into one end of the movable bayonet, and then install the remaining main longitudinal beam; Step 5: Install the low temperature box cover. The installation steps are the same as the lower end frame. After the external installation is completed, the whole is hoisted and installed on the upper end frame. Step 6: Install the buffer limit device, set the buffer spring column on both sides of the limit bracket and both sides of the low temperature box body, set the rubber block on the top of the limit bracket, and the height of the rubber block is lower than the height of the buffer spring column at its natural length.

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