Fixing device for salt bath experiments

Abstract

The application provides a fixing device for a salt bath experiment, which comprises a fixing frame, a first fixing assembly and a second fixing assembly, wherein the fixing frame comprises a lower frame body and a top plate, the lower frame body is provided with a containing portion and a first opening, the first opening is located at the top of the lower frame body, the first opening is communicated with the containing portion, the top plate is detachably arranged on the lower frame body and located at the first opening; the first fixing assembly is arranged on the lower frame body and extends along the height direction of the lower frame body, the first fixing assembly can move in the length direction relative to the lower frame body, and the first fixing assembly can fix a plate; the second fixing assembly is arranged on the top plate and extends along the length direction of the lower frame body, the second fixing assembly can move in the height direction relative to the lower frame body, and the second fixing assembly can fix the plate. Through the technical scheme, the problem that the plate is prone to deformation in the salt bath experiment in the prior art can be solved.

Description

Technical Field

[0001] This invention relates to the field of salt bath experimental technology, and more specifically, to a fixing device for salt bath experiments. Background Technology

[0002] Salt bath testing is commonly used in the laboratory R&D phase of aluminum alloy automotive sheet metal for heat treatments such as solution treatment and annealing. However, after salt bath quenching, the sheet metal usually warps in the normal direction. Currently, laboratories often lack sheet metal straightening equipment, requiring manual stretching during subsequent processing. However, manual straightening can cause plastic deformation, significantly impacting the sheet metal's mechanical properties, especially tensile strength, and consequently severely affecting the accuracy of experimental data. Summary of the Invention

[0003] This invention provides a fixing device for salt bath experiments to solve the problem that the plate material is prone to deformation in salt bath experiments in the prior art.

[0004] This invention provides a fixing device for salt bath experiments. The fixing device includes: a fixing frame, comprising a lower frame and a top plate, the lower frame having a receiving portion and a first opening, the first opening being located at the top of the lower frame and communicating with the receiving portion, and the top plate being detachably mounted on the lower frame and located at the first opening; a first fixing component, mounted on the lower frame, extending along the height direction of the lower frame, and movable relative to the lower frame in the length direction, capable of fixing a plate; and a second fixing component, mounted on the top plate, extending along the length direction of the lower frame, and movable relative to the lower frame in the height direction, capable of fixing the plate.

[0005] Furthermore, the first fixing assembly includes two first pressure plates and a plurality of first clamping members. The first pressure plates extend along the height direction of the lower frame, the two first pressure plates are spaced apart along the width direction of the lower frame, and the plurality of first clamping members are disposed on the outer side of the two first pressure plates along the extension direction of the first pressure plates. The first clamping members are used to adjust the distance between the two first pressure plates, and the two first pressure plates are used to fix the plate. The second fixing assembly includes two second pressure plates and a plurality of second clamping members. The second pressure plates extend along the length direction of the lower frame, the two second pressure plates are spaced apart along the width direction of the lower frame, and the plurality of second clamping members are disposed on the outer side of the two second pressure plates along the extension direction of the second pressure plates. The second clamping members are used to adjust the distance between the two second pressure plates, and the two second pressure plates are used to fix the plate.

[0006] Furthermore, the fixing device includes two first fixing components, which are respectively arranged on both sides of the lower frame along the length direction of the lower frame; the bottom of the lower frame has a clamping part, which can clamp the plate, and the clamping part is arranged opposite to the second fixing component.

[0007] Further, the first clamping member includes a first connecting rod and a first clamping head. The first clamping head is located within the receiving portion. The first connecting rod passes through the side wall of the lower frame and is connected to the first clamping head. The first clamping head has a first cavity and a second opening. The second opening is located on the side of the first clamping head facing the other first clamping member and communicates with the first cavity. The first clamping head is sleeved on two first pressure plates. A first locking structure is provided between the first clamping head and the two first pressure plates. The second opening is spaced apart from the two first pressure plates. The second clamping member includes a second connecting rod and a second clamping head. The second clamping head is located within the receiving portion. The second connecting rod passes through the top plate and is connected to the second clamping head. The second clamping head has a second cavity and a third opening. The third opening is located on the side of the second clamping head facing the clamping portion and communicates with the second cavity. The second clamping head is sleeved on two second pressure plates. A second locking structure is provided between the second clamping head and the two second pressure plates. The third opening is spaced apart from the two second pressure plates.

[0008] Furthermore, in the first clamping member, a first inclined surface is provided at the end of the first pressure plate near the second opening. The first inclined surface is located on the side of the first pressure plate near the inner wall of the first cavity. The distance between the first inclined surface and the other first pressure plate disposed opposite to it gradually decreases along the direction near the second opening. The first cavity includes a first chamber and a second chamber that are sequentially connected along the length direction of the lower frame. The first pressure plate is located in the first chamber and the second chamber. The first chamber is connected to the second opening. The cross-sectional dimension of the first chamber gradually decreases towards the second opening. The inner wall of the first chamber is adapted to the first inclined surface. The first clamping member can move relative to the first pressure plate in the length direction to adjust the two first pressure plates by cooperating with the inner wall of the first chamber and the first inclined surface. The second clamping member has a second inclined surface at one end of the second pressure plate near the third opening. The second inclined surface is located on the side of the second pressure plate near the inner wall of the second cavity. The distance between the second inclined surface and the other second pressure plate gradually decreases in the direction near the third opening. The second cavity includes a third chamber and a fourth chamber that are sequentially connected in the height direction of the lower frame. The second pressure plate is located in the third chamber and the fourth chamber. The third chamber is connected to the third opening. The cross-sectional size of the third chamber gradually decreases in the direction near the third opening. The inner wall of the third chamber is adapted to the second inclined surface. The second clamping member can move relative to the second pressure plate in the height direction to adjust the interval between the two second pressure plates by cooperating with the inner wall of the third chamber and the second inclined surface.

[0009] Furthermore, the lower frame has two opposing side walls, each with a first sliding groove extending along the height of the lower frame. The first clamping members of the two first fixing components are correspondingly disposed within the two first sliding grooves. The first connecting rod passes through the first sliding groove and can move along the extension direction of the first sliding groove. The top plate has a second sliding groove extending along the length of the lower frame. Multiple second connecting rods pass through the second sliding groove and can move along the extension direction of the second sliding groove.

[0010] Furthermore, the bottom of the lower frame is provided with a fixing plate and a clamping plate. The clamping plate and the fixing plate are arranged side by side, and the interval between the clamping plate and the fixing plate is adjustable. A clamping part is formed between the clamping plate and the fixing plate.

[0011] Furthermore, the minimum distance between the two opposing first clamping heads is 180mm, and the maximum distance between the two opposing first clamping heads is 230mm; the minimum distance between the second clamping head and the clamping part is 100mm, and the maximum distance between the second clamping head and the clamping part is 350mm.

[0012] Furthermore, the second chamber has first pre-tightening holes on both side walls, and the fixing device also includes first fasteners. The first fasteners pass through the first pre-tightening holes and abut against the first pressure plates. The first fasteners on both sides of the second chamber cooperate with each other to pre-tighten the two first pressure plates. The fourth chamber has second pre-tightening holes on both side walls, and the fixing device also includes second fasteners. The second fasteners pass through the second pre-tightening holes and abut against the second pressure plates. The second fasteners on both sides of the fourth chamber cooperate with each other to pre-tighten the two second pressure plates.

[0013] Furthermore, the top plate is provided with multiple fastening pins, and the lower frame is provided with multiple connecting holes at one end near the top plate. The multiple connecting holes are provided one-to-one with the multiple fastening pins, and the fastening pins can be fixed in the connecting holes.

[0014] Applying the technical solution of this invention, the top plate is positioned at the first opening of the fixed frame. The first fixing component is positioned along the height direction of the lower frame and can move along the length direction of the lower frame. The second fixing component is positioned along the length of the lower frame and can move along the height direction of the lower frame. Both the first and second fixing components can fix the plate. With this configuration, during salt bath testing, the first and second fixing components can clamp and fix the edges of the plate, preventing deformation in the normal direction and thus avoiding plastic deformation during manual straightening. This ensures the mechanical properties of the plate, prevents changes in its tensile strength, and guarantees the accuracy of the experimental data. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 A schematic diagram of a fixing device for salt bath experiments according to an embodiment of the present invention is shown;

[0017] Figure 2 A schematic diagram of the structure of the fixed frame provided according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of the structure of the top plate provided according to an embodiment of the present invention is shown;

[0019] Figure 4 A schematic diagram of the structure of the lower frame provided according to an embodiment of the present invention is shown;

[0020] Figure 5 A schematic diagram of the structure of a first fixing component provided according to an embodiment of the present invention is shown;

[0021] Figure 6 It shows Figure 5 A magnified view of a section at point A in the middle;

[0022] Figure 7 A schematic diagram of the structure of the first clamping member provided according to an embodiment of the present invention is shown;

[0023] Figure 8 A schematic diagram of the structure of the second fixing component provided according to an embodiment of the present invention is shown;

[0024] Figure 9 It shows Figure 8 A magnified view of a section at point B in the middle;

[0025] Figure 10 A schematic diagram of the structure of the second clamping member provided according to an embodiment of the present invention is shown.

[0026] The above figures include the following reference numerals:

[0027] 10. Fixed frame; 11. Lower frame; 111. Receiving part; 112. First opening; 113. Clamping part; 1131. Fixed plate; 1132. Clamping plate; 114. Side wall; 1141. First slide groove; 115. Connecting hole; 12. Top plate; 121. Second slide groove; 122. Fastening pin;

[0028] 20. First fixing component; 21. First pressure plate; 211. First inclined surface; 22. First clamping member; 221. First connecting rod; 222. First clamping head; 2221. First cavity; 22211. First chamber; 22212. Second chamber; 2222. Second opening; 2223. First pre-tightening hole;

[0029] 30. Second fixing component; 31. Second pressure plate; 311. Second inclined surface; 32. Second clamping member; 321. Second connecting rod; 322. Second clamping head; 3221. Second cavity; 32211. Third chamber; 32212. Fourth chamber; 3222. Third opening; 3223. Second pre-tightening hole;

[0030] 1. Board material. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1 to 10 As shown, this application provides a fixing device for salt bath experiments. The fixing device includes a fixing frame 10, a first fixing component 20, and a second fixing component 30. The fixing frame 10 includes a lower frame 11 and a top plate 12. The lower frame 11 has a receiving portion 111 and a first opening 112. The first opening 112 is located at the top of the lower frame 11 and communicates with the receiving portion 111. The top plate 12 is detachably mounted on the lower frame 11 and located at the first opening 112. The first fixing component 20 is mounted on the lower frame 11 and extends along the height direction of the lower frame 11, such as... Figure 1 As shown, the Z-axis direction is the height direction of the lower frame 11. The first fixing component 20 can move relative to the lower frame 11 in the length direction, as shown. Figure 1 As shown, the X-axis direction is the length direction of the lower frame 11, and the first fixing component 20 can fix the plate 1. The second fixing component 30 is disposed on the top plate 12, and the second fixing component 30 extends along the length direction of the lower frame 11. The second fixing component 30 can move relative to the lower frame 11 in the height direction, and the second fixing component 30 can fix the plate 1.

[0033] Applying the technical solution of this application, the top plate 12 is disposed at the first opening 112 of the fixed frame 10. The first fixing component 20 is disposed along the height direction of the lower frame 11 and can move along the length direction of the lower frame 11. The second fixing component 30 is disposed along the length of the lower frame 11 and can move along the height direction of the lower frame 11. The first fixing component 20 and the second fixing component 30 can fix the plate 1. With this configuration, when the plate 1 is subjected to a salt bath test, the first fixing component 20 and the second fixing component 30 can clamp and fix the edge of the plate 1. This can prevent the plate 1 from deforming in the normal direction, and thus prevent plastic deformation caused by manual straightening. This can ensure the mechanical properties of the plate 1, prevent changes in its tensile strength, and ensure the accuracy of the experimental data. Furthermore, since the first fixing component 20 and the second fixing component 30 are movably disposed on the lower frame 11, the fixing device can be applied to plates 1 of various sizes, thereby improving the versatility of the fixing device and reducing the processing cost of the plate 1 during the salt bath test.

[0034] like Figures 5 to 7 As shown, the first fixing component 20 includes two first pressure plates 21 and a plurality of first clamping members 22. The first pressure plates 21 extend along the height direction of the lower frame 11, and the two first pressure plates 21 are spaced apart along the width direction of the lower frame 11. The plurality of first clamping members 22 are arranged outside the two first pressure plates 21 along the extending direction of the first pressure plates 21. The first clamping members 22 are used to adjust the distance between the two first pressure plates 21. The two first pressure plates 21 are used to fix the plate 1, and the two first pressure plates 21 can clamp the side of the plate 1. Wherein, as... Figure 1 As shown, the Y-axis direction is aligned with the width direction of the lower frame 11. With this configuration, during the salt bath experiment, the side of the plate 1 is positioned between the two first pressure plates 21, and the first clamping member 22 ensures that the two first pressure plates 21 firmly clamp the plate 1, thereby preventing the plate 1 from falling or undergoing minor deformation during the salt bath experiment, and ensuring the clamping effect of the first fixing component 20 on the plate 1. Figures 8 to 10As shown, the second fixing component 30 includes two second pressure plates 31 and multiple second clamping members 32. The second pressure plates 31 extend along the length direction of the lower frame 11, and the two second pressure plates 31 are spaced apart along the width direction of the lower frame 11. The multiple second clamping members 32 are arranged on the outside of the two second pressure plates 31 along the extension direction of the second pressure plates 31. The second clamping members 32 are used to adjust the distance between the two second pressure plates 31. The two second pressure plates 31 are used to fix the plate 1, and the two second pressure plates 31 can clamp the top of the plate 1. With this configuration, during the salt bath experiment, the top of the plate 1 is placed between the two second pressure plates 31, and the second clamping members 32 can make the two second pressure plates 31 firmly clamp the plate 1, thereby preventing the plate 1 from falling or undergoing slight deformation during the salt bath experiment, and ensuring the clamping effect of the second fixing component 30 on the plate 1.

[0035] Specifically, the fixing device includes two first fixing components 20, which are respectively arranged on both sides of the lower frame 11 along its length. The bottom of the lower frame 11 has a clamping part 113, which can clamp the plate 1132 material. The clamping part 113 is arranged opposite to the second fixing component 30. With this structure, the two first fixing components 20 firmly clamp the two sides of the plate 1 along the length of the lower frame 11, thus preventing deformation of the plate 1 in the width direction (X-axis). The clamping part 113 fixes the bottom of the plate 1. Thus, the clamping part 113 and the second fixing component 30 cooperate to firmly clamp the plate 1 along the height direction of the lower frame 11, thus preventing deformation of the plate 1 in the length direction (Z-axis). This arrangement further ensures the clamping effect of the fixing device on the plate 1, further prevents deformation of the plate 1, and thus further ensures the accuracy of the experimental data.

[0036] like Figure 1 , Figure 6 and Figure 7As shown, the first clamping member 22 includes a first connecting rod 221 and a first clamping head 222. The first clamping head 222 is located inside the receiving part 111. The first connecting rod 221 passes through the side wall 114 of the lower frame 11 and is connected to the first clamping head 222. The first clamping head 222 has a first cavity 2221 and a second opening 2222. The second opening 2222 is located on the side of the first clamping head 222 facing the other first clamping member 22. The second opening 2222 communicates with the first cavity 2221. The first clamping head 222 is sleeved on two first pressure plates 21. There is a first locking structure between the first clamping head 222 and the two first pressure plates 21. The second opening 2222 is set at intervals corresponding to the two first pressure plates 21. With the above structure, two first pressure plates 21 are disposed within the first cavity 2221, and the plate 1 can be disposed between the two first pressure plates 21 through the second opening 2222. This arrangement facilitates the placement of the first pressure plates 21 within the first cavity 2221 and also facilitates the placement of the plate 1 between the two first pressure plates 21. This arrangement results in a simple structure and facilitates the disassembly and assembly of the first clamping member 22, the first pressure plates 21, and the plate 1. Figure 1 , Figure 9 and Figure 10 As shown, the second clamping member 32 includes a second connecting rod 321 and a second clamping head 322. The second clamping head 322 is located inside the receiving portion 111. The second connecting rod 321 passes through the top plate 12 and is connected to the second clamping head 322. The second clamping head 322 has a second cavity 3221 and a third opening 3222. The third opening 3222 is located on the side of the second clamping head 322 facing the clamping portion 113 and communicates with the second cavity 3221. The second clamping head 322 is sleeved on two second pressure plates 31. A second locking structure is provided between the second clamping head 322 and the two second pressure plates 31. The third opening 3222 is spaced apart from the two second pressure plates 31. With the above structure, two second pressure plates 31 are disposed within the second cavity 3221, and the plate 1 can be disposed between the two second pressure plates 31 through the third opening 3222. This arrangement facilitates the placement of the second pressure plates 31 within the second cavity 3221 and also facilitates the placement of the plate 1 between the two second pressure plates 31. This arrangement results in a simple structure and facilitates the disassembly and assembly of the second clamping member 32, the second pressure plates 31, and the plate 1.

[0037] like Figure 6As shown, in the first clamping member 22, a first inclined surface 211 is provided at one end of the first pressure plate 21 near the second opening 2222. The first inclined surface 211 is located on the side of the first pressure plate 21 near the inner wall of the first cavity 2221. The distance between the first inclined surface 211 and the other first pressure plate 21 disposed opposite to it gradually decreases along the direction near the second opening 2222. The first cavity 2221 includes a first chamber 22211 and a second chamber 22212 that are sequentially connected along the length direction of the lower frame 11. The pressure plate 21 is located in the first chamber 22211 and the second chamber 22212. The first chamber 22211 communicates with the second opening 2222. The cross-sectional dimensions of the first chamber 22211 gradually decrease towards the second opening 2222. The inner wall of the first chamber 22211 is adapted to the first inclined surface 211. The first clamping member 22 can move relative to the first pressure plate 21 in the length direction to adjust the interval between the two first pressure plates 21 by cooperating with the inner wall of the first chamber 22211 and the first inclined surface 211. When fixing the plate 1, the bottom of the plate 1 can be fixed to the clamping part 113 of the lower frame 11 first. With the above structure, when fixing the plate 1, after the plate 1 is placed between the two first pressure plates 21, the first clamping member 22 is moved, so that the first chamber 22211 moves and the inner wall of the first chamber 22211 presses against the first inclined surface 211. This can reduce the gap between the two first pressure plates 21, thereby making the two first pressure plates 21 firmly clamp the plate 1. The operation is simple and convenient for workers to operate. In this application, the first clamping head 222 has two first straight segments and two first inclined segments arranged opposite to each other. The two first straight segments are arranged close to the first connecting rod 221. One of the first straight segments is connected to the first inclined segment therein, and the other first straight segment is connected to the other first inclined segment. The first inclined segment is inclined towards the other first inclined segment. The interval between the two first straight segments is the second chamber 22212, and the interval between the two first inclined segments is the first chamber 22211. The opening at the end of the two first inclined segments away from the first straight segment is the second opening 2222. This arrangement results in a simple structure and facilitates the processing and manufacturing of the first clamping head 222.

[0038] like Figure 9As shown, in the second clamping member 32, a second inclined surface 311 is provided at one end of the second pressure plate 31 near the third opening 3222. The second inclined surface 311 is located on the side of the second pressure plate 31 near the inner wall of the second cavity 3221. The distance between the second inclined surface 311 and the other second pressure plate 31 disposed opposite to it gradually decreases along the direction near the third opening 3222. The second cavity 3221 includes a third chamber 32211 and a fourth chamber 32212 that are sequentially connected along the height direction of the lower frame 11. The pressure plate 31 is located within the third chamber 32211 and the fourth chamber 32212. The third chamber 32211 communicates with the third opening 3222. The cross-sectional dimensions of the third chamber 32211 gradually decrease towards the third opening 3222. The inner wall of the third chamber 32211 is adapted to the second inclined surface 311. The second clamping member 32 can move relative to the second pressure plate 31 in the height direction to adjust the interval between the two second pressure plates 31 by cooperating with the inner wall of the third chamber 32211 and the second inclined surface 311. With the above structure, when fixing the plate 1, after the plate 1 is placed between the two second pressure plates 31, the second clamping member 32 is moved, causing the third chamber 32211 to move and the inner wall of the third chamber 32211 to press against the second inclined surface 311. This reduces the interval between the two second pressure plates 31, thereby making the two second pressure plates 31 firmly clamp the plate 1. The operation is simple and convenient for workers. In this application, the second clamping head 322 has two second straight segments and two second inclined segments arranged opposite to each other. The two second straight segments are arranged close to the second connecting rod 321. One of the second straight segments is connected to the second inclined segment therein, and the other second straight segment is connected to the other second inclined segment. The second inclined segment is inclined towards the other second inclined segment. The interval between the two second straight segments is a fourth chamber 32212, and the interval between the two second inclined segments is a third chamber 32211. The opening at the end of the two second inclined segments away from the second straight segments is a third opening 3222. This arrangement results in a simple structure and facilitates the processing and manufacturing of the second clamping head 322.

[0039] like Figure 4As shown, the lower frame 11 has two opposing side walls 114, each with a first sliding groove 1141 extending along the height of the lower frame 11. The first clamping members 22 of the two first fixing components 20 are correspondingly positioned within the two first sliding grooves 1141. A first connecting rod 221 passes through the first sliding groove 1141 and can move along the extension direction of the first sliding groove 1141, allowing adjustment of the positions of multiple first clamping members 22 as needed. This arrangement facilitates the placement of the first clamping members 22 on the lower frame 11 and allows the first connecting rod 221 to move along the length of the lower frame 11 or along the extension direction of the first sliding groove 1141 within the first sliding groove 1141. The structure is simple and easy for workers to adjust the position of the first clamping members 22. In this application, the surface of the first connecting rod 221 is provided with a threaded structure, and the first connecting rod 221 is fixed to the lower frame 11 by a nut. A second slide groove 121 is provided on the top plate 12, which is arranged along the length of the lower frame 11. Multiple second connecting rods 321 pass through the second slide groove 121 and can move along the extension direction of the second slide groove 121. This allows for adjustment of the positions of the multiple second clamping members 32 as needed. This arrangement facilitates the placement of the second clamping members 32 on the top plate 12 and allows the second connecting rods 321 to move along the height direction of the lower frame 11 or along the extension direction of the second slide groove 121 within the second slide groove 121. The structure is simple and easy for workers to adjust the positions of the second clamping members 32. In this application, the surface of the second connecting rod 321 is provided with a threaded structure, and the second connecting rod 321 is fixed to the top plate 12 by a nut.

[0040] like Figure 2 and Figure 4 The bottom of the lower frame 11 is provided with a fixing plate 1131 and a clamping plate 1132. The clamping plate 1132 and the fixing plate 1131 are arranged side by side, and the interval between the clamping plate 1132 and the fixing plate 1131 is adjustable, forming a clamping part 113 between the clamping plate 1132 and the fixing plate 1131. Both the fixing plate 1131 and the clamping plate 1132 are provided with threaded holes, which can be adjusted by screwing. With the above structure, since the surface area of ​​the fixing plate 1131 and the clamping plate 1132 is large, when the clamping plate 1132 and the fixing plate 1131 clamp the plate 1, they can avoid uneven force on the plate 1 and deformation, thereby further preventing deformation of the plate 1.

[0041] Specifically, the minimum distance between the two opposing first clamping heads 222 is 180mm, and the maximum distance between the two opposing first clamping heads 222 is 230mm; the minimum distance between the second clamping head 322 and the clamping part 113 is 100mm, and the maximum distance between the second clamping head 322 and the clamping part 113 is 350mm. In the prior art, the width of the plate 1 is generally set between 180mm and 230mm, and the length of the plate 1 is generally cut to between 100mm and 350mm according to the depth of the salt bath furnace liquid surface. Using the above structure, the fixing device can meet the size requirements of the plate 1 in the prior art, while avoiding the waste of cost due to an excessively large fixing device or the inability to place the fixing device inside the salt bath furnace.

[0042] like Figure 7 As shown, each of the two side walls 114 of the second chamber 22212 is provided with a first pre-tightening hole 2223. The fixing device also includes a first fastener, which passes through the first pre-tightening hole 2223 and abuts against the first pressure plate 21. The first fasteners on both sides of the second chamber 22212 cooperate with each other to pre-tighten the two first pressure plates 21. With the above structure, when fixing the plate 1, the first fastener can first be inserted into the first pre-tightening hole 2223 to pre-tighten the first pressure plate 21. Then, by moving the first clamping member 22, the two first pressure plates 21 are firmly clamped to the plate 1. After the first clamping member 22 has firmly clamped the two first pressure plates 21 to the plate 1, the first fastener can be used to further lock the two first pressure plates 21. With this configuration, the first fastener can ensure that the first clamping member 22 can smoothly change the spacing of the two first pressure plates 21, and can further ensure the clamping effect of the two first pressure plates 21 on the plate 1. In this application, the first pre-tightening hole 2223 is a threaded hole, and the first fastener is a bolt. Figure 10As shown, each of the two side walls 114 of the fourth chamber 32212 is provided with a second pre-tightening hole 3223. The fixing device also includes a second fastener, which passes through the second pre-tightening hole 3223 and abuts against the second pressure plate 31. The second fasteners on both sides of the fourth chamber 32212 cooperate with each other to pre-tighten the two second pressure plates 31. With the above structure, when fixing the plate 1, the second fastener can first be inserted into the second pre-tightening hole 3223 to pre-tighten the second pressure plate 31. Then, by moving the second clamping member 32, the two second pressure plates 31 are firmly clamped to the plate 1. After the second clamping member 32 has firmly clamped the two second pressure plates 31 to the plate 1, the two second pressure plates 31 can be further locked by the second fastener. With this setting, the second fastener can ensure that the second clamping member 32 can smoothly change the interval of the two second pressure plates 31, and can further ensure the clamping effect of the two second pressure plates 31 on the plate 1. In this application, the second pre-tightening hole 3223 is a threaded hole, and the second fastener is a bolt.

[0043] Furthermore, the top plate 12 is provided with multiple fastening pins 122, and the lower frame 11 near the top plate 12 is provided with multiple connecting holes 115. Each connecting hole 115 corresponds to one of the fastening pins 122, and the fastening pins 122 can be fixed within the connecting holes 115. This arrangement allows the top plate 12 to be fixed to the lower frame 11, and the structure is simple and easy to operate. In this application, the top plate 12 is provided with two fastening pins 122, and the lower frame 11 near the top plate 12 is provided with two connecting holes 115.

[0044] To facilitate understanding of this solution, the assembly steps of the fixing device clamping plate 1132 are as follows:

[0045] First, two first fixing components 20 are placed in the first slide groove 1141; then, the plate 1 is inserted through the first opening 112 between the two first pressure plates 21 of the two first fixing components 20, and the bottom of the plate 1 is fixed by the clamping plate 1132 and the fixing plate 1131, and the first pressure plate 21 is pre-tightened by the first fastener; then, the position of the first clamping member 22 is moved, and the first clamping member 22 is locked by the nut; next, the second fixing component 30 is placed in the second slide groove 121, and the top plate 12 is fixed on the lower frame 11; two second pressure plates 31 are placed on both sides of the plate 1, and the second pressure plates 31 are pre-tightened by the second fastener; then, the position of the second clamping member 32 is moved, and the second clamping member 32 is locked by the nut, at which time the nut can also further fix the top plate 12 on the lower frame 11.

[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0048] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0049] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fixing device for salt bath experiments, characterized in that, The fixing device includes: A fixed frame (10) includes a lower frame (11) and a top plate (12). The lower frame (11) has a receiving part (111) and a first opening (112). The first opening (112) is located at the top of the lower frame (11) and communicates with the receiving part (111). The top plate (12) is detachably mounted on the lower frame (11) and located at the first opening (112). A first fixing component (20) is disposed on the lower frame (11). The first fixing component (20) extends along the height direction of the lower frame (11). The first fixing component (20) is movable relative to the lower frame (11) in the length direction. The first fixing component (20) is able to fix the plate (1). The second fixing component (30) is disposed on the top plate (12). The second fixing component (30) extends along the length direction of the lower frame (11). The second fixing component (30) can move relative to the lower frame (11) in the height direction. The second fixing component (30) can fix the plate (1). The first fixing component (20) includes two first pressure plates (21) and a plurality of first clamping members (22). The first pressure plates (21) extend along the height direction of the lower frame (11), and the two first pressure plates (21) are spaced apart along the width direction of the lower frame (11). The plurality of first clamping members (22) are arranged on the outside of the two first pressure plates (21) along the extension direction of the first pressure plates (21). The first clamping members (22) are used to adjust the distance between the two first pressure plates (21), and the two first pressure plates (21) are used to fix the plate (1). The second fixing component (30) includes two second pressure plates (31) and a plurality of second clamping members (32). The second pressure plates (31) extend along the length direction of the lower frame (11), and the two second pressure plates (31) are spaced apart along the width direction of the lower frame (11). The plurality of second clamping members (32) are arranged on the outside of the two second pressure plates (31) along the extension direction of the second pressure plates (31). The second clamping members (32) are used to adjust the distance between the two second pressure plates (31), and the two second pressure plates (31) are used to fix the plate (1).

2. The fixing device for salt bath experiments according to claim 1, characterized in that, The fixing device includes two first fixing components (20), which are respectively arranged on both sides of the lower frame (11) along the length direction of the lower frame (11); The bottom of the lower frame (11) has a clamping part (113) that can clamp the plate (1) and is disposed opposite to the second fixing component (30).

3. The fixing device for salt bath experiments according to claim 2, characterized in that, The first clamping member (22) includes a first connecting rod (221) and a first clamping head (222). The first clamping head (222) is located inside the receiving part (111). The first connecting rod (221) passes through the side wall (114) of the lower frame (11) and is connected to the first clamping head (222). The first clamping head (222) has a first cavity (2221) and a second opening (2222). The second opening (2222) is located on the side of the first clamping head (222) facing the other first clamping member (22). The second opening (2222) communicates with the first cavity (2221). The first clamping head (222) is sleeved on the two first pressure plates (21). The first clamping head (222) and the two first pressure plates (21) have a first locking structure. The second opening (2222) is arranged at intervals corresponding to the two first pressure plates (21). The second clamping member (32) includes a second connecting rod (321) and a second clamping head (322). The second clamping head (322) is located inside the receiving part (111). The second connecting rod (321) passes through the top plate (12) and is connected to the second clamping head (322). The second clamping head (322) has a second cavity (3221) and a third opening (3222). The third opening (3222) is located on the side of the second clamping head (322) facing the clamping part (113). The third opening (3222) communicates with the second cavity (3221). The second clamping head (322) is sleeved on two second pressure plates (31). There is a second locking structure between the second clamping head (322) and the two second pressure plates (31). The third opening (3222) is spaced apart from the two second pressure plates (31).

4. The fixing device for salt bath experiments according to claim 3, characterized in that, In the first clamping member (22), the first pressure plate (21) has a first inclined surface (211) at one end near the second opening (2222). The first inclined surface (211) is located on the side of the first pressure plate (21) near the inner wall of the first cavity (2221). The distance between the first inclined surface (211) and the other first pressure plate (21) disposed opposite to it gradually decreases along the direction near the second opening (2222). The first cavity (2221) includes a first chamber (22211) and a second chamber (22212) that are sequentially connected along the length direction of the lower frame (11). The first pressure plate ( 21) Located in the first chamber (22211) and the second chamber (22212), the first chamber (22211) is connected to the second opening (2222), the cross-sectional dimensions of the first chamber (22211) gradually decrease towards the second opening (2222), the inner wall of the first chamber (22211) is adapted to the first inclined surface (211), and the first clamping member (22) can move relative to the first pressure plate (21) in the length direction to adjust the interval between the two first pressure plates (21) by the cooperation between the inner wall of the first chamber (22211) and the first inclined surface (211); In the second clamping member (32), the second pressure plate (31) has a second inclined surface (311) at one end near the third opening (3222). The second inclined surface (311) is located on the side of the second pressure plate (31) near the inner wall of the second cavity (3221). The distance between the second inclined surface (311) and the other second pressure plate (31) disposed opposite to it gradually decreases along the direction near the third opening (3222). The second cavity (3221) includes a third chamber (32211) and a fourth chamber (32212) that are sequentially connected along the height direction of the lower frame (11). 31) Located in the third chamber (32211) and the fourth chamber (32212), the third chamber (32211) is connected to the third opening (3222), the cross-sectional dimensions of the third chamber (32211) gradually decrease towards the third opening (3222), the inner wall of the third chamber (32211) is adapted to the second inclined surface (311), and the second clamping member (32) can move relative to the second pressure plate (31) in the height direction to adjust the interval between the two second pressure plates (31) by the cooperation of the inner wall of the third chamber (32211) and the second inclined surface (311).

5. The fixing device for salt bath experiments according to claim 3, characterized in that, The lower frame (11) has two oppositely arranged side walls (114), each of which is provided with a first slide groove (1141). The first slide groove (1141) extends along the height direction of the lower frame (11). The first clamping members (22) in the two first fixing components (20) are correspondingly arranged in the two first slide grooves (1141). The first connecting rod (221) passes through the first slide groove (1141) and can move along the extension direction of the first slide groove (1141). The top plate (12) is provided with a second slide groove (121), which is arranged along the length direction of the lower frame (11). A plurality of second connecting rods (321) are inserted in the second slide groove (121), and the second connecting rods (321) can move along the extension direction of the second slide groove (121).

6. The fixing device for salt bath experiments according to claim 5, characterized in that, The bottom of the lower frame (11) is provided with a fixing plate (1131) and a clamping plate (1132). The clamping plate (1132) and the fixing plate (1131) are arranged side by side. The interval between the clamping plate (1132) and the fixing plate (1131) is adjustable. The clamping part (113) is formed between the clamping plate (1132) and the fixing plate (1131).

7. The fixing device for salt bath experiments according to claim 4, characterized in that, The minimum distance between the two first clamping heads (222) arranged opposite each other is 180mm, and the maximum distance between the two first clamping heads (222) arranged opposite each other is 230mm; the minimum distance between the second clamping head (322) and the clamping part (113) is 100mm, and the maximum distance between the second clamping head (322) and the clamping part (113) is 350mm.

8. The fixing device for salt bath experiments according to claim 4, characterized in that, The second chamber (22212) has a first pre-tightening hole (2223) on each of its two side walls (114). The fixing device also includes a first fastener, which passes through the first pre-tightening hole (2223) and abuts against the first pressure plate (21). The first fasteners on both sides of the second chamber (22212) cooperate with each other to pre-tighten the two first pressure plates (21). The fourth chamber (32212) has two side walls (114) with second pre-tightening holes (3223). The fixing device also includes a second fastener, which passes through the second pre-tightening hole (3223) and abuts against the second pressure plate (31). The second fasteners on both sides of the fourth chamber (32212) cooperate with each other to pre-tighten the two second pressure plates (31).

9. The fixing device for salt bath experiments according to claim 1, characterized in that, The top plate (12) is provided with a plurality of fastening pins (122), and the lower frame (11) is provided with a plurality of connecting holes (115) at one end near the top plate (12). The plurality of connecting holes (115) are provided in correspondence with the plurality of fastening pins (122), and the fastening pins (122) can be fixed in the connecting holes (115).

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