Industrial personal computer case with mainboard capable of being replaced flexibly

Abstract

The invention discloses an industrial personal computer case with a mainboard capable of being flexibly replaced, and relates to the technical field of cases, the industrial personal computer case comprises a case shell body, a rapid dismounting mechanism is arranged above the case shell body, an ejection mechanism is arranged in the case shell body, the rapid dismounting mechanism can accelerate dismounting work of a mainboard structure, and the mainboard structure can be conveniently dismounted. The quick dismounting mechanism comprises a case cover body, a lifting plate is arranged in the case cover body, the bottom face of the lifting plate makes contact with the inner bottom wall of the case cover body, the upper surface of the lifting plate is fixedly connected with two sets of fixing cylinders, the number of each set of fixing cylinders is two, the inner wall of each fixing cylinder is in threaded connection with a threaded column, and the threaded column is in threaded connection with the case cover body. According to the industrial personal computer case capable of flexibly replacing the mainboard, the purposes of driving the threaded shaft to rotate, driving the square plate to move upwards and finally driving the lifting plate to move upwards to eject the mainboard by matching with the design of the groove in the inner wall of the threaded shaft are achieved, and the influence of a narrow case on taking out of the mainboard is avoided.

Description

Technical Field

[0001] This invention relates to the field of chassis technology, specifically to an industrial control computer chassis with a flexibly replaceable motherboard. Background Technology

[0002] As the "protection and load-bearing core" of electronic equipment, the chassis provides physical protection, heat dissipation guidance and structural support for internal components. In particular, industrial control computer chassis need to have industrial-grade characteristics such as vibration resistance, dust resistance and electromagnetic interference resistance to ensure stable operation of equipment in complex environments. Mini industrial control computer chassis further compress the size to the extreme, adapt to small spaces with a compact mechanical structure, and achieve flexible deployment in scenarios such as vehicle and edge computing, with strong environmental adaptability and scalability.

[0003] Currently, existing mini industrial control chassis are inconvenient to replace when the internal carrier board is replaced due to their small size and lack of space for users to remove the bolts connecting to the motherboard.

[0004] Combining the above issues, we find that existing chassis are difficult to avoid all the problems mentioned above when in use. Even if they can be solved, they require external tools, which cannot achieve the desired effect. Therefore, we propose an industrial control computer chassis with a flexible motherboard replacement. Summary of the Invention

[0005] The purpose of this invention is to provide an industrial control computer chassis with a flexible motherboard replacement to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an industrial control computer chassis with a flexibly replaceable motherboard, comprising a chassis shell body, a quick disassembly mechanism provided on the top of the chassis shell body, and an ejection mechanism provided inside the chassis shell body; The quick disassembly mechanism can speed up the disassembly of the motherboard structure. The ejection mechanism eliminates the need for users to retrieve the motherboard from inside the cramped chassis.

[0007] Preferably, the quick disassembly mechanism includes a chassis cover body, inside which a lifting plate is provided. The bottom surface of the lifting plate contacts the inner bottom wall of the chassis cover body. Two sets of fixing cylinders are fixedly connected to the upper surface of the lifting plate, with two cylinders in each set. The inner wall of each fixing cylinder is threaded with a threaded post. The upper surface of each threaded post is fixedly connected with a circular shaft. The inside of each threaded post and the inside of the circular shaft are slidably connected with a first spiral shaft. The outer surface of each first spiral shaft is fixedly connected with a force-bearing ring. The top end of each force-bearing ring contacts the bottom surface of the chassis cover body. The inner wall of each first spiral shaft is rotatably connected with a short shaft. The top end of each short shaft is fixedly connected with a rotating plate. Each rotating plate is located inside the chassis cover body.

[0008] Preferably, the inner wall of the chassis cover body is threaded with two sets of mounting bolts, each set containing two mounting bolts, and the outer surface of each mounting bolt is threaded to the inner wall of the chassis cover body.

[0009] Preferably, the chassis cover body has two disassembly plates internally engaged, and the bottom surface of the chassis cover body is in contact with the upper surface of the chassis shell body.

[0010] Preferably, the inner wall of the chassis cover body is rotatably connected to two sets of rotating shafts, each set of rotating shafts having two shafts, and each rotating shaft has a baffle fixedly connected to its outer surface, with the outer surface of each baffle contacting the outer surface of the disassembly plate.

[0011] Preferably, two sets of limiting frames are fixedly connected to the outer surface of the chassis cover body, and the outer surface of each baffle is engaged with the inside of the limiting frame.

[0012] Preferably, a pressure cylinder is fixedly connected to the outer surface of each threaded post, a circular ring is provided on the outer side of each circular shaft, the outer surface of each circular shaft is rotatably connected to the inner wall of the circular ring, and two limiting blocks are fixedly connected to the outer surface of each circular ring.

[0013] Preferably, the bottom surface of the chassis cover body has two sets of rectangular openings, each set of rectangular openings has two, and each rotating plate passes through the rectangular opening and extends above the rectangular opening.

[0014] Preferably, each of the chassis cover bodies has four sets of slots on its bottom surface, and four sets of magnets are fixedly connected to the inner wall of each chassis cover body. Each set of slots and magnets consists of two magnets. Each slot has a limiting plate inside it. One side of each limiting plate is magnetically connected to one side of the magnet. Each limiting plate has a limiting groove on its surface. The outer surface of each limiting block is slidably connected to the inside of the limiting groove.

[0015] Preferably, the ejection mechanism includes two sets of threaded shafts, with two threaded shafts in each set. A square plate is threadedly connected to the outer surface of each threaded shaft. The two sets of square plates are fixedly connected to the outer surface of the lifting plate on their adjacent sides. A second spiral shaft is slidably connected inside each threaded shaft. A long shaft is slidably connected inside each second spiral shaft. The top end of each long shaft is fixedly connected to the bottom surface of the chassis cover body. A cross slider is fixedly connected to the bottom end of the long shaft. A cross groove is formed on the inner wall of each second spiral shaft. The outer surface of each cross slider is slidably connected to the inside of the cross groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a lifting plate and a fixing cylinder. The opening on the motherboard mounting surface is aligned with the fixing cylinder, and then the chassis cover body is placed on top of the chassis shell body. At this point, the four threaded posts will contact the top of the fixing cylinder. The chassis cover body is then pressed downwards. Since the threaded posts are already in contact with one end of the fixing cylinder, they cannot move downwards. Therefore, they can only push the first helical shaft downwards. When the first helical shaft moves downwards, the helical stripes fixed on its surface correspond to the helical grooves opened on the inner wall of the threaded posts and the circular shaft. This allows the threaded posts and the circular shaft to rotate. Combined with the threaded connection between the threaded posts and the fixing cylinder, the threaded posts are screwed onto the inner wall of the fixing cylinder. When the threaded posts are screwed onto the inner wall of the fixing cylinder, they push the pressure cylinder downwards synchronously. The pressure cylinder squeezes the motherboard, making the motherboard and the lifting plate tightly contact, thus completing the installation. When the chassis cover needs to be removed but the motherboard does not need to be removed, ensure that the position of the rotating plate corresponds to the position of the rectangular opening. In this case, the upward movement of the chassis cover will not transmit power to the rotating plate, so there is no need to move the first spiral shaft upward. However, it will move the limiting plate upward. When the bottom of the limiting plate moves to the position of contacting the limiting block, the limiting plate will gradually release the magnetic connection with the magnet under the limitation of the limiting block. Therefore, the limiting plate can be removed from the chassis. Conversely, when the motherboard needs to be removed, the rotating plate needs to be rotated so that it cannot pass through the rectangular opening. In this case, the upward movement of the chassis cover will move the rotating plate upward synchronously, which will drive the first spiral shaft upward and drive the threaded column and the circular shaft to rotate in opposite directions, thereby driving the threaded column to be removed from the inside of the fixed cylinder.

[0017] 2. This invention, by setting a long shaft, allows the chassis cover to move upward, which in turn moves the long shaft upward. This upward movement of the long shaft simultaneously moves the cross slider until it reaches the top of the second spiral shaft. It's important to understand that the distance the cross slider travels from the bottom to the top of the second spiral shaft is insufficient to move the second spiral shaft upward. Therefore, the ejection mechanism does not drive the lifting plate upward at this point. Furthermore, during the time the cross slider slides to the top of the second spiral shaft, the quick-release mechanism is completing the motherboard removal process. When the cross slider moves the second spiral shaft upward, the striped design on the surface of the second spiral shaft, combined with the grooved design on the inner wall of the threaded shaft, causes the threaded shaft to rotate, thereby moving the square plate upward. Ultimately, this causes the lifting plate to move upward, ejecting the motherboard and eliminating the impact of a small chassis on motherboard removal. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the structure of the chassis cover body of the present invention; Figure 4 This is a schematic diagram of the structure of the mounting bolt of the present invention; Figure 5 This is a schematic diagram of the structure of the first helical shaft of the present invention; Figure 6 This is a bottom view of the limiting plate structure of the present invention; Figure 7 This is a schematic diagram of the threaded shaft of the present invention; Figure 8 This is a schematic diagram of the long axis of the present invention.

[0019] In the picture: 1. Chassis shell body; 2. Quick disassembly mechanism; 201. Chassis cover body; 202. Rotating plate; 203. Limiting plate; 204. Lifting plate; 205. Fixing cylinder; 206. Threaded column; 207. Pressure cylinder; 208. Circular shaft; 209. Circular ring; 210. Limiting block; 211. Limiting groove; 212. First spiral shaft; 213. Force ring; 214. Short shaft; 215. Slot; 216. Magnet; 217. Rectangular opening; 3. Ejection mechanism; 301. Threaded shaft; 302. Square plate; 303. Long shaft; 304. Second spiral shaft; 305. Cross slide groove; 306. Cross slide block; 4. Limiting frame; 5. Disassembly plate; 6. Mounting bolt; 7. Rotating shaft; 8. Baffle. Detailed Implementation

[0020] 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. 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.

[0021] Example 1: Please refer to Figures 1-6 The present invention provides a technical solution: an industrial control computer chassis with a flexible motherboard replacement, including a chassis shell body 1, a quick disassembly mechanism 2 provided on the top of the chassis shell body 1, and an ejection mechanism 3 provided inside the chassis shell body 1. Quick disassembly mechanism 2 can speed up the disassembly of the motherboard structure; The ejection mechanism 3 eliminates the need for users to remove the motherboard from inside the cramped chassis body 1.

[0022] The quick disassembly mechanism 2 includes a chassis cover body 201. A lifting plate 204 is provided inside the chassis cover body 1. The bottom surface of the lifting plate 204 is in contact with the inner bottom wall of the chassis cover body 1. Two sets of fixing cylinders 205 are fixedly connected to the upper surface of the lifting plate 204. There are two fixing cylinders in each set. The inner wall of each fixing cylinder 205 is threaded with a threaded post 206. The upper surface of each threaded post 206 is fixedly connected with a circular shaft 208. The inside of each threaded post 206 and the inside of the circular shaft 208 are slidably connected with a first spiral shaft 212. The outer surface of each first spiral shaft 212 is fixedly connected with a force ring 213. The top end of each force ring 213 is in contact with the bottom surface of the chassis cover body 201. The inner wall of each first spiral shaft 212 is rotatably connected with a short shaft 214. The top end of each short shaft 214 is fixedly connected with a rotating plate 202. Each rotating plate 202 is located inside the chassis cover body 201. The inner wall of the chassis cover body 201 is threaded with two sets of mounting bolts 6. Each set of mounting bolts 6 consists of two bolts. The outer surface of each mounting bolt 6 is threaded to the inner wall of the chassis body 1. By providing mounting bolts 6, the chassis cover body 201 can be installed on top of the chassis body 1. The chassis cover body 201 has two disassembly plates 5 inside. The bottom surface of the chassis cover body 201 is in contact with the upper surface of the chassis shell body 1. With the disassembly plates 5 provided, the disassembly plates 5 can be disassembled from the inside of the chassis cover body 201. When the disassembly plates 5 are inside the chassis cover body 201, they can block the rectangular opening 217 to prevent dust from entering the inside of the chassis shell body 1 through the rectangular opening 217 during use. The inner wall of the chassis cover body 201 is rotatably connected to two sets of rotating shafts 7. Each set of rotating shafts 7 consists of two shafts. Each rotating shaft 7 has a baffle 8 fixedly connected to its outer surface. The outer surface of each baffle 8 is in contact with the outer surface of the disassembly plate 5. By setting the rotating shafts 7, the rotating shafts 7 can drive the baffle 8 to rotate, and the baffle 8 can limit the disassembly plate 5. Two sets of limiting frames 4 are fixedly connected to the outer surface of the chassis cover body 201. The outer surface of each baffle 8 is engaged inside the limiting frame 4. By setting the limiting frame 4, the baffle 8 can be engaged inside the limiting frame 4, thereby limiting the position of the baffle 8. At the same time, when the baffle 8 is pushed by the disassembly plate 5, the limiting frame 4 will bear part of the pushing force. Each threaded post 206 has a pressure cylinder 207 fixedly connected to its outer surface, and each circular shaft 208 has a circular ring 209 on its outer side. The outer surface of each circular shaft 208 is rotatably connected to the inner wall of the circular ring 209. Each circular ring 209 has two limit blocks 210 fixedly connected to its outer surface. With the pressure cylinder 207, the pressure cylinder 207 can squeeze the main board and the lifting plate 204 into close contact, while the circular ring 209 can transmit the pressure when the chassis cover body 201 moves downward to the circular shaft 208. The bottom surface of the chassis cover body 201 has two sets of rectangular openings 217, and each set of rectangular openings 217 has two. Each rotating plate 202 passes through the rectangular opening 217 and extends above the rectangular opening 217. By setting the rectangular opening 217, whether the rotating plate 202 corresponds to the rectangular opening 217 can determine whether the motherboard can be removed. Each chassis cover body 201 has four sets of slots 215 on its bottom surface, and four sets of magnets 216 are fixedly connected to the inner wall of each chassis cover body 201. Each set of slots 215 and magnets 216 consists of two. Each slot 215 has a limiting plate 203 inside it. One side of each limiting plate 203 is magnetically connected to one side of each magnet 216. Each limiting plate 203 has a limiting groove 211 on its surface. The outer surface of each limiting block 210 is slidably connected to the inside of the limiting groove 211. By providing the slots 215, the slots 215 can engage the limiting plate 203.

[0023] The specific implementation method of this embodiment is as follows: Align the opening on the surface of the motherboard with the fixing cylinder 205, and then place the chassis cover body 201 on top of the chassis shell body 1. At this time, the four threaded posts 206 will contact the top of the fixing cylinder 205. Then, press the chassis cover body 201 downward. Since the threaded posts 206 have already contacted one end of the fixing cylinder 205, the threaded posts 206 cannot move downward. Therefore, they can only push the first spiral shaft 212 downward. When the first spiral shaft 212 moves downward, the threads fixed on its surface... The spiral grooves correspond to the spiral grooves on the inner walls of the threaded post 206 and the circular shaft 208, thus driving the threaded post 206 and the circular shaft 208 to rotate. Combined with the threaded connection between the threaded post 206 and the fixed cylinder 205, the threaded post 206 can be screwed onto the inner wall of the fixed cylinder 205. When the threaded post 206 is screwed onto the inner wall of the fixed cylinder 205, it will push the pressure cylinder 207 to move downwards synchronously. The pressure cylinder 207 will squeeze the main plate, making the main plate and the lifting plate 204 come into close contact, thereby completing the installation. When removing the chassis cover body 201 without removing the motherboard, ensure that the position of the rotating plate 202 corresponds to the position of the rectangular opening 217. In this case, moving the chassis cover body 201 upwards will not transmit power to the rotating plate 202, therefore there is no need to move the first spiral shaft 212 upwards. However, it will move the limiting plate 203 upwards. When the bottom of the limiting plate 203 moves to the position where it contacts the limiting block 210, the limiting plate 203 will gradually release under the limitation of the limiting block 210. The magnetic connection with magnet 216 allows the limiting plate 203 to be removed from the chassis. Conversely, when the motherboard needs to be removed, the rotating plate 202 needs to be rotated so that it cannot pass through the rectangular opening 217. At this time, the chassis cover body 201 moves upward, which will drive the rotating plate 202 to move upward in sync. This will drive the first spiral shaft 212 to move upward and drive the threaded column 206 and the circular shaft 208 to rotate in opposite directions, thereby allowing the threaded column 206 to be removed from the inside of the fixed cylinder 205.

[0024] Example 2: Please refer to Figure 1 , Figure 7 and Figure 8 The present invention provides a technical solution: an industrial control computer chassis with a flexibly replaceable motherboard. The present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0025] As a further definition of the ejection mechanism 3 of the present invention, the ejection mechanism 3 includes two sets of threaded shafts 301, each set of threaded shafts 301 having two threads. The outer surface of each threaded shaft 301 is threadedly connected to a square plate 302. The two sets of square plates 302 are fixedly connected to the outer surface of the lifting plate 204 on their adjacent sides. A second spiral shaft 304 is slidably connected inside each threaded shaft 301. A long shaft 303 is slidably connected inside each second spiral shaft 304. The top end of each long shaft 303 is fixedly connected to the bottom surface of the chassis cover body 201. A cross slider 306 is fixedly connected to the bottom end of the long shaft 303. A cross groove 305 is opened on the inner wall of each second spiral shaft 304. The outer surface of each cross slider 306 is slidably connected to the inside of the cross groove 305.

[0026] The specific implementation of this embodiment is as follows: When the chassis cover body 201 moves upward, it can drive the long shaft 303 to move upward. The upward movement of the long shaft 303 can simultaneously drive the cross slider 306 to move until the cross slider 306 moves to the top position of the second spiral shaft 304. At this time, it should be understood that the distance from the bottom end to the top end of the second spiral shaft 304 by the cross slider 306 cannot drive the second spiral shaft 304 to move upward. Therefore, the ejection mechanism 3 does not drive the lifting plate 204 to move upward at this time. During the time that the cross slider 306 slides to the top end of the second spiral shaft 304, the quick disassembly mechanism 2 is completing the disassembly of the motherboard. When the cross slider 306 drives the second spiral shaft 304 to move upward, the striped design on the surface of the second spiral shaft 304, combined with the groove design on the inner wall of the threaded shaft 301, can drive the threaded shaft 301 to rotate, thereby driving the square plate 302 to move upward, and finally driving the lifting plate 204 to move upward, thus ejecting the motherboard and eliminating the impact of the narrow chassis on the removal of the motherboard.

[0027] Example 3: Specifically, when using this industrial control computer chassis: Align the opening on the motherboard mounting surface with the fixing cylinder 205, and then place the chassis cover body 201 on top of the chassis shell body 1. At this time, the four threaded posts 206 will contact the top of the fixing cylinder 205. Then, press the chassis cover body 201 downward. Since the threaded posts 206 are already in contact with one end of the fixing cylinder 205, they cannot move downward. Therefore, they can only push the first spiral shaft 212 downward. When the first spiral shaft 212 moves downward, the spiral stripes fixed on its surface will correspond to the spiral grooves opened on the inner walls of the threaded posts 206 and the circular shaft 208. Therefore, it can drive the threaded posts 206 and the circular shaft 208 to rotate. With the threaded connection between the threaded posts 206 and the fixing cylinder 205, the threaded posts can be rotated. The purpose of screwing the threaded post 206 onto the inner wall of the fixed cylinder 205 is to push the pressure cylinder 207 downwards synchronously when the threaded post 206 is screwed onto the inner wall of the fixed cylinder 205. The pressure cylinder 207 will squeeze the motherboard, making the motherboard and the lifting plate 204 in close contact, thus completing the installation. When it is necessary to remove the chassis cover body 201, but not the motherboard, the position of the rotating plate 202 must correspond to the position of the rectangular opening 217. At this time, the upward movement of the chassis cover body 201 will not transmit power to the rotating plate 202, so there is no need to drive the first spiral shaft 212 upwards. However, it will drive the limiting plate 203 upwards. When the bottom of the limiting plate 203 moves to the position of contacting the limiting block 210, the limiting block 210 will then... Under the limit, the limiting plate 203 will gradually release its magnetic connection with the magnet 216, so the limiting plate 203 can be removed from the chassis shell. Conversely, when the motherboard needs to be removed, the rotating plate 202 needs to be rotated so that it cannot pass through the rectangular opening 217. At this time, the chassis cover body 201 moves upward, which will drive the rotating plate 202 to move upward synchronously. This will achieve the purpose of driving the first spiral shaft 212 to move upward and driving the threaded column 206 and the circular shaft 208 to rotate in opposite directions. This will allow the threaded column 206 to be removed from the fixed cylinder 205. When the chassis cover body 201 moves upward, it can drive the long shaft 303 to move upward. The upward movement of the long shaft 303 can synchronously drive the cross slider 306 to move until... When the cross slider 306 moves to the top of the second spiral shaft 304, it's important to understand that the distance the cross slider 306 travels from the bottom to the top of the second spiral shaft 304 is insufficient to move the second spiral shaft 304 upwards. Therefore, the ejection mechanism 3 does not drive the lifting plate 204 upwards at this point. Furthermore, during the time the cross slider 306 slides to the top of the second spiral shaft 304, the quick-release mechanism 2 is completing the disassembly of the main board. When the cross slider 306 moves the second spiral shaft 304 upwards, the striped design on the surface of the second spiral shaft 304, combined with the grooved design on the inner wall of the threaded shaft 301, causes the threaded shaft 301 to rotate, thereby moving the square plate 302 upwards.Ultimately, this causes the lifting plate 204 to move upwards, pushing out the motherboard and eliminating the obstruction of the small chassis when removing it.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible host board replaceable industrial computer case, comprising a case shell body (1), characterized in that: A quick disassembly mechanism (2) is provided on the top of the chassis body (1), and an ejection mechanism (3) is provided inside the chassis body (1). The quick disassembly mechanism (2) can speed up the disassembly of the motherboard structure; The ejection mechanism (3) eliminates the need for the user to remove the motherboard from inside the small chassis body (1).

2. The industrial computer case with flexible replacement of a motherboard according to claim 1, characterized in that: The quick disassembly mechanism (2) includes a chassis cover body (201). A lifting plate (204) is provided inside the chassis cover body (1). The bottom surface of the lifting plate (204) contacts the inner bottom wall of the chassis cover body (1). Two sets of fixing cylinders (205) are fixedly connected to the upper surface of the lifting plate (204). Each set of fixing cylinders (205) consists of two cylinders. Each fixing cylinder (205) has a threaded post (206) threaded to its inner wall. A circular shaft (208) is fixedly connected to the upper surface of each threaded post (206). The interior of the textured column (206) and the interior of the circular shaft (208) are slidably connected to a first spiral shaft (212). A force-bearing ring (213) is fixedly connected to the outer surface of each first spiral shaft (212). The top end of each force-bearing ring (213) is in contact with the bottom surface of the chassis cover body (201). A short shaft (214) is rotatably connected to the inner wall of each first spiral shaft (212). A rotating plate (202) is fixedly connected to the top end of each short shaft (214). Each rotating plate (202) is disposed inside the chassis cover body (201).

3. The industrial control computer chassis with a flexibly replaceable motherboard according to claim 2, characterized in that: The inner wall of the chassis cover body (201) is threaded with two sets of mounting bolts (6), each set of mounting bolts (6) consists of two bolts, and the outer surface of each mounting bolt (6) is threaded to the inner wall of the chassis cover body (1).

4. The industrial control computer chassis with a flexibly replaceable motherboard according to claim 2, characterized in that: The chassis cover body (201) has two disassembly plates (5) inside, and the bottom surface of the chassis cover body (201) is in contact with the upper surface of the chassis shell body (1).

5. The industrial control computer chassis with a flexibly replaceable motherboard according to claim 2, characterized in that: The inner wall of the chassis cover body (201) is rotatably connected to two sets of rotating shafts (7). Each set of rotating shafts (7) consists of two shafts. Each rotating shaft (7) has a baffle (8) fixedly connected to its outer surface. The outer surface of each baffle (8) is in contact with the outer surface of the disassembly plate (5).

6. The industrial control computer chassis with a flexibly replaceable motherboard according to claim 5, characterized in that: Two sets of limiting frames (4) are fixedly connected to the outer surface of the chassis cover body (201), and the outer surface of each baffle (8) is snapped into the inside of the limiting frame (4).

7. The industrial control computer chassis with a flexibly replaceable motherboard according to claim 2, characterized in that: Each of the threaded columns (206) has a pressure cylinder (207) fixedly connected to its outer surface, and each of the circular shafts (208) has a circular ring (209) on its outer side. The outer surface of each of the circular shafts (208) is rotatably connected to the inner wall of the circular ring (209). Two limiting blocks (210) are fixedly connected to the outer surface of each of the circular rings (209).

8. The industrial control computer chassis with a flexibly replaceable motherboard according to claim 2, characterized in that: The bottom surface of the chassis cover body (201) is provided with two sets of rectangular openings (217), each set of rectangular openings (217) has two, and each rotating plate (202) passes through the rectangular opening (217) and extends above the rectangular opening (217).

9. The industrial control computer chassis with a flexibly replaceable motherboard according to claim 7, characterized in that: Each chassis cover body (201) has four sets of slots (215) on its bottom surface. Each chassis cover body (201) has four sets of magnets (216) fixedly connected to its inner wall. Each set of slots (215) and magnets (216) has two magnets. Each slot (215) has a limiting plate (203) inside it. One side of each limiting plate (203) is magnetically connected to one side of the magnet (216). Each limiting plate (203) has a limiting groove (211) on its surface. The outer surface of each limiting block (210) is slidably connected to the inside of the limiting groove (211).

10. The industrial control computer chassis with a flexibly replaceable motherboard according to claim 2, characterized in that: The ejection mechanism (3) includes two sets of threaded shafts (301), each set of threaded shafts (301) has two threads. The outer surface of each threaded shaft (301) is threaded with a square plate (302). The two sets of square plates (302) are fixedly connected to the outer surface of the lifting plate (204) on their adjacent sides. The inner surface of each threaded shaft (301) is slidably connected with a second spiral shaft (304). The inner surface of each second spiral shaft (304) is slidably connected with a long shaft (303). The top end of each long shaft (303) is fixedly connected to the bottom surface of the chassis cover body (201). The bottom end of the long shaft (303) is fixedly connected with a cross slider (306). The inner wall of each second spiral shaft (304) is provided with a cross groove (305). The outer surface of each cross slider (306) is slidably connected to the inside of the cross groove (305).

Images