Bearing mechanism and liquid injection device

Abstract

The utility model discloses a bearing mechanism which comprises a mounting base, a sliding assembly, a supporting assembly and a self-locking assembly, the self-locking assembly comprises a locking piece and a lock body piece, the locking piece is provided with a locking groove, the lock body piece comprises a rotating shaft arranged on the supporting assembly in a rotating mode and a locking block arranged on the rotating shaft, the locking block is provided with a locking protruding portion and an unlocking face, and the locking protruding portion and the unlocking face are arranged in a back-to-back mode. And the upper locking convex part is matched with the locking groove in size in the moving direction of the locking block. The utility model further discloses a liquid injection device. After the supporting assembly moves to a designated position, the rotating shaft is rotated and drives the locking block to rotate together, so that the locking convex part of the locking block rotates into the locking groove, the state is a locking state, and the supporting assembly cannot move any more; and the locking block is rotated again, so that the locking convex part is separated from the locking groove, the unlocking state is achieved, and the supporting assembly can move again. Through the arrangement of the self-locking assembly, positioning and fixing of the supporting assembly can be achieved, and the self-locking assembly is small in occupied space and has the cost advantage.

Description

Technical Field

[0001] This utility model relates to the field of battery liquid injection technology, specifically to a support mechanism and a liquid injection device. Background Technology

[0002] Liquid injection is a crucial step in lithium-ion battery manufacturing, which includes manual secondary liquid injection. This manual secondary liquid injection needs to be carried out in a vacuum environment, so the battery needs to be placed in a vacuum chamber for liquid injection.

[0003] The vacuum chamber also contains a liquid injection mechanism that extends outside the chamber for battery loading. After loading, the mechanism retracts into the chamber, and is positioned using a cylinder or servo motor. This positioning method not only increases production costs but also occupies a significant amount of space within the vacuum chamber, increasing its overall size. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a support mechanism and a liquid injection device.

[0005] The present invention discloses a support mechanism, comprising:

[0006] Mounting base;

[0007] A sliding component, which is mounted on a mounting base;

[0008] A support assembly connected to a sliding assembly, the support assembly being movable relative to the mounting base via the sliding assembly; and

[0009] The self-locking assembly includes a locking element and a lock body. The locking element has at least one locking groove. The lock body includes a rotating shaft and a locking block. The rotating shaft is rotatably mounted on a support assembly. The locking block is mounted on the rotating shaft. The locking groove is located on the moving path of the locking block. The locking block has an upper locking protrusion and an unlocking surface arranged opposite to each other. The size of the upper locking protrusion and the locking groove in the moving direction of the locking block are adapted to each other.

[0010] The locking state is when the locking protrusion rotates into the lock groove; the unlocking state is when the locking protrusion rotates away from the lock groove and the unlocking surface is spaced apart from the lock element.

[0011] According to one embodiment of the present invention, the lock body further includes a first handwheel, which is disposed at the end of the rotating shaft away from the lock block.

[0012] According to one embodiment of the present invention, the lock body further includes a support seat, which is disposed on the support assembly, and the rotating shaft is rotatably disposed on the support seat.

[0013] According to one embodiment of the present invention, the support component includes a support member, the support member includes a support frame and a first limiting plate, the support frame is connected to a sliding component, a rotating shaft is rotatably disposed on the support frame, the first limiting plate is disposed on the support frame, and the first limiting plate and the support frame together constitute at least one receiving area.

[0014] According to one embodiment of the present invention, the support assembly further includes a first adjusting member, which includes two first adjusting plates that are spaced apart and oppositely disposed on the first limiting plate. The two first adjusting plates can move in the X-axis direction within the receiving area and are fixed within the receiving area.

[0015] According to one embodiment of the present invention, the support assembly further includes a second adjusting member, which includes an adjusting support, a drive shaft, and an adjusting bar. The adjusting support is disposed on the support frame, the drive shaft is movably disposed on the adjusting support, and the adjusting bar is connected to the drive shaft. The adjusting bar can move in the Y-axis direction within the receiving area and is fixed within the receiving area.

[0016] According to one embodiment of the present invention, the support assembly further includes a third adjusting member, which includes a guide rod and a second limiting plate. The guide rod is disposed on the support frame or the first limiting plate, and the second limiting plate is slidably disposed on the guide rod. The support frame, the first limiting plate, and the second limiting plate together constitute an accommodating area. The second limiting plate can move in the Z-axis direction within the accommodating area and is fixed within the accommodating area.

[0017] According to one embodiment of the present invention, the third adjusting member further includes two second adjusting plates, which are arranged opposite each other at a distance from the second limiting plate. The two second adjusting plates can move in the X-axis direction within the receiving area and are fixed within the receiving area.

[0018] According to one embodiment of the present invention, the support assembly further includes a clamping member, which includes a clamping frame and a clamping clamp. The clamping frame is disposed on the support frame or the first limiting plate, and the clamping clamp is disposed on the clamping frame and located above the receiving area.

[0019] The present invention discloses a liquid injection device, including the aforementioned support mechanism, vacuum chamber and liquid injection mechanism. The mounting base and locking fastener are both disposed inside the vacuum chamber, the support component is movable relative to the vacuum chamber, and the liquid injection mechanism is disposed above the support component.

[0020] The beneficial effects of this utility model are that the support component moves via a sliding component. When the support component moves to a designated position, the rotating shaft is rotated, causing the locking block to rotate as well. This causes the locking protrusion on the locking block to rotate into one of the locking slots, at which point the support component is locked and cannot move further. Then, the locking block is rotated again, causing the locking protrusion to leave the locking slot. At this point, the unlocking surface is separated from the locking element, indicating the unlocked state, and the support component can move again. The self-locking component not only achieves the positioning and fixation of the support component but also occupies little space, offering a cost advantage. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is one of the three-dimensional structural diagrams of the load-bearing mechanism;

[0023] Figure 2 This is the second schematic diagram of the three-dimensional structure of the supporting mechanism;

[0024] Figure 3 A schematic diagram of the three-dimensional structure supporting the components;

[0025] Figure 4 This is another three-dimensional structural diagram of the supporting components;

[0026] Figure 5 This is the third schematic diagram of the three-dimensional structure of the supporting mechanism;

[0027] Figure 6 The fourth schematic diagram of the three-dimensional structure of the supporting mechanism;

[0028] Figure 7 This is one of the three-dimensional structural diagrams of the liquid injection device;

[0029] Figure 8 This is the second three-dimensional structural schematic diagram of the liquid injection device;

[0030] Figure 9 This is the third three-dimensional structural diagram of the liquid injection device.

[0031] Explanation of reference numerals in the attached figures

[0032] 1. Mounting bracket;

[0033] 2. Sliding component; 21. Sliding fastener; 22. Sliding mounting component;

[0034] 3. Support assembly; 31. Support component; 311. Support frame; 3111. First side plate; 3112. Second side plate; 3113. Base plate; 3114. Slide groove; 3115. Handle; 312. First limiting plate; 3121. Receiving groove; 313. Receiving area; 32. First adjusting component; 321. First adjusting plate; 3211. Adjusting groove; 33. Second adjusting component; 331. Adjusting support; 332. Drive shaft; 333. Adjusting bar; 334. Second handwheel; 34. Third adjusting component; 341. Guide rod; 342. Second limiting plate; 343. Second adjusting plate; 35. Clamping component; 350. Clamping frame; 351. First clamping plate; 352. Second clamping plate; 353. Third clamping plate; 354. Clamping clamp;

[0035] 4. Self-locking component; 41. Locking element; 411. Lock groove; 42. Lock body; 421. Rotating shaft; 422. Lock block; 4221. Locking protrusion; 4222. Unlocking surface; 423. First handwheel; 424. Support base;

[0036] 5. Vacuum chamber;

[0037] 6. Injection mechanism. Detailed Implementation

[0038] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0039] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] Example 1

[0041] like Figure 1 and Figure 2 As shown, Figure 1 This is one of the three-dimensional structural diagrams of the load-bearing mechanism; Figure 2 This is the second three-dimensional structural diagram of the support mechanism. The support mechanism includes a mounting base 1, a sliding component 2, a support component 3, and a self-locking component 4. The sliding component 2 is located on the mounting base 1, and the support component 3 is connected to the sliding component 2. The support component 3 can move relative to the mounting base 1 through the sliding component 2. The self-locking component 4 is set on the support component 3. When the support component 3 moves to a designated position, the current position is fixed by the self-locking component 4.

[0042] The sliding assembly 2 includes a sliding fixing member 21 and a sliding mounting member 22. The sliding fixing member 21 is disposed on the mounting base 1, and the sliding mounting member 22 is slidably disposed on the sliding fixing member 21. The support assembly 3 is disposed on the sliding mounting member 22. The support assembly 3 can move relative to the sliding fixing member 21 via the sliding mounting member 22, and thus move relative to the mounting base 1. In specific applications, there are two mounting bases 1, which are arranged opposite each other at a distance along the X-axis. There are also two sliding fixing members 21 and two sliding mounting members 22. The two sliding fixing members 21 are respectively disposed on the two mounting bases 1, and the two sliding mounting members 22 are respectively slidably disposed on the two sliding fixing members 21. The support assembly 3 is connected to the two sliding mounting members 22. It can be understood that the support assembly 3 can move along the Y-axis within the space between the two mounting bases 1.

[0043] Please refer to the following: Figure 3 and Figure 4 As shown, Figure 3 A schematic diagram of the three-dimensional structure supporting component 3; Figure 4 This is another three-dimensional structural diagram of the support component 3. The support component 3 includes a support member 31, which is connected to the sliding mounting member 22. A self-locking component 4 is disposed on the support member 31. Specifically, the support member 31 includes a support frame 311 and a first limiting plate 312. The support frame 311 is connected to the sliding mounting member 22, the first limiting plate 312 is disposed on the support frame 311, and the self-locking component 4 is disposed at the bottom of the support frame 311. The support frame 311 includes a first side plate 3111, a second side plate 3112, and a bottom plate 3113. The two ends of the bottom plate 3113 are respectively connected to one end of the first side plate 3111 and one end of the second side plate 3112. The bottom plate 3113 and the first limiting plate 312 together form at least one receiving area 313. In use, the battery is placed into the receiving area 313.

[0044] In this embodiment, the first limiting plate 312 is composed of at least two independent plates. When there is only one accommodating area 313, one plate is disposed on the side of the first side plate 3111 facing the second side plate 3112, and the other plate is disposed on the side of the second side plate 3112 facing the first side plate 3111. The two plates and the bottom plate 3113 together constitute an accommodating area 313. When there are two accommodating areas 313, three plates are required. One plate is disposed on the side of the first side plate 3111 facing the second side plate 3112, the second plate is disposed on the side of the second side plate 3112 facing the first side plate 3111, and the third plate is disposed on the bottom plate 3113 by a support rod. The two adjacent plates and the bottom plate 3113 together constitute an accommodating area 313. Of course, the number of accommodating areas 313 can be adjusted according to the number of batteries to be inserted, and thus the number of plates can be adjusted. It is not limited to the two or three mentioned above. Preferably, the support frame 311 further includes a handle 3115, which is disposed on one side of the base plate 3113. In use, an external force can be applied to the handle 3115, thereby driving the support frame 311 to move through the handle 3115.

[0045] Furthermore, the support component 3 also includes a first adjustment member 32, which is disposed on the first limiting plate 312. The first adjustment member 32 includes two first adjustment plates 321, which are disposed opposite to each other on the two plates of the first limiting plate 312 at a distance. The two first adjustment plates 321 can move relative to the plates of the first limiting plate 312, so that the two first adjustment plates 321 can move in the X-axis direction of the receiving area 313 and be fixed in the receiving area 313, thereby adapting to batteries of different thicknesses.

[0046] Specifically, the first adjusting plate 321 has at least one adjusting groove 3211, and a fixing rod passes through the adjusting groove 3211. A fixing member cooperates with the fixing rod to fix the first adjusting plate 321 onto the body of the first limiting plate 312. In use, after the first adjusting plate 321 moves relative to the body of the first limiting plate 312 to the desired position, the fixing rod passes through the adjusting groove 3211 and the body of the first limiting plate 312, and cooperates with the fixing member to fix the first adjusting plate 321. The fixing rod can be a bolt, and the fixing member can be a nut. Preferably, to prevent wear on the battery, a soft material, such as sponge or silicone, can be added to each of the two first adjusting plates 321 on opposite sides. Of course, the number of first adjusting members 32 corresponds to the number of receiving areas 313, that is, two receiving areas 313 are each provided with two first adjusting members 32.

[0047] Furthermore, the support assembly 3 also includes a second adjusting member 33, which is disposed on the base plate 3113. The second adjusting member 33 includes an adjusting support 331, a drive shaft 332, and an adjusting bar 333. The adjusting support 331 is disposed on the base plate 3113, the drive shaft 332 is rotatably disposed on the adjusting support 331, and the adjusting bar 333 is disposed at one end of the drive shaft 332. By rotating the drive shaft 332, the drive shaft 332 can move relative to the adjusting support 331, thereby driving the adjusting bar 333 to move in the Y-axis direction of the receiving area 313 and causing a portion of the adjusting bar 333 to remain within the receiving area 313, thus adapting to batteries of different lengths. In specific applications, the side of the first side plate 3111 facing the second side plate 3112 and the side of the second side plate 3112 facing the first side plate 3111 are both provided with sliding grooves 3114, and the two ends of the adjusting bar 333 are slidably disposed within the two sliding grooves 3114 respectively. Preferably, the second adjusting member 33 further includes a second handwheel 334, which is located at the end of the transmission shaft 332 away from the adjusting bar 333, and can drive the transmission shaft 332 to rotate.

[0048] Please review Figures 1-3 The support assembly 3 also includes a clamping member 35, which is disposed on the support frame 311. The clamping component 35 includes a clamping frame 350 and a clamping clamp 354. The clamping frame 350 is disposed on the support frame 311 or the first limiting plate 312. In this embodiment, the clamping frame 350 is disposed on the support frame 311, and the clamping clamp 354 is disposed on the clamping frame 350, and the clamping clamp 354 is located above the receiving area 313. Specifically, the clamping frame 350 includes a first clamping plate 351, a second clamping plate 352, and a third clamping plate 353. The first clamping plate 351 is disposed on the first side plate 3111, the second clamping plate 352 is disposed on the second side plate 3112, and the two ends of the third clamping plate 353 are respectively connected to the first clamping plate 351 and the second clamping plate 352. The clamping clamp 354 is disposed on the third clamping plate 353. In use, after the battery is placed into the receiving area 313, the clamping clamp 354 abuts against the top of the battery, and the clamping clamp 354 cooperates with the bottom plate 3113 to fix the battery. In this embodiment, the number of clamping pliers 354 can be multiple, and they are existing quick clamping structures.

[0049] Please review Figure 1 and Figure 2The self-locking assembly 4 includes a locking element 41 and a lock body 42. The locking element 41 is located between two mounting bases 1, and the lock body 42 is rotatably mounted on the side of the base plate 3113 away from the first limiting plate 312. The lock body 42 includes a rotating shaft 421 and a locking block 422. The rotating shaft 421 is rotatably mounted on the side of the base plate 3113 away from the first limiting plate 312, and the locking block 422 is located at one end of the rotating shaft 421. The locking element 41 has at least one locking groove 411, which is located on the movement path of the locking block 422. When the support frame 311 moves, it will drive the rotating shaft 421 and the locking block 422 to move together. After the support frame 311 moves to the designated position, an external force is applied to rotate the rotating shaft 421. The rotating shaft 421 drives the locking block 422 to rotate together, causing the locking block 422 to rotate into one of the locking grooves 411. At this time, it is in the locked state, that is, the support frame 311 will not be able to move further.

[0050] Specifically, the locking block 422 has a locking protrusion 4221 and an unlocking surface 4222 arranged opposite to each other. The dimensions of the locking protrusion 4221 and the locking groove 411 are adapted to each other in the moving direction of the locking block 422. When in the locked state, the locking protrusion 4221 is located in the locking groove 411. Conversely, when in the unlocked state, the locking protrusion 4221 leaves the locking groove 411, and there is a gap between the unlocking surface 4222 and the locking element 41. That is, by setting the unlocking surface 4222, the locking block 422 and the locking element 41 do not contact each other in the unlocked state, and the support frame 311 can continue to move. In this embodiment, the cross-sectional shape of the locking block 422 is "D" shaped; the unlocking surface 4222 is a plane, and the locking protrusion 4221 protrudes relative to the unlocking surface 4222. It should also be noted that the number of locking grooves 411 on the locking element 41 is not limited, and the position and number of locking grooves 411 can be set according to the position where the support frame 311 needs to stop.

[0051] Preferably, the lock body 42 further includes a first handwheel 423, which is located at the end of the rotating shaft 421 away from the lock block 422. Rotating the first handwheel 423 drives the rotating shaft 421 to rotate relative to the base plate 3113, and the rotation of the lock block 422 allows switching between locked and unlocked states. Further, the lock body 42 also includes a support seat 424, which is located on the side of the base plate 3113 away from the first limiting plate 312. The rotating shaft 421 passes through the support seat 424 and is rotatably mounted on it. In this embodiment, to improve the stability of the rotating shaft 421 during operation, two support seats 424 are provided, spaced apart, and the rotating shaft 421 passes through both support seats 424.

[0052] In summary, the support component 3 moves via the sliding component 2. Once the support component 3 reaches its designated position, the rotating shaft 421 is rotated, causing the locking block 422 to rotate as well. This causes the locking protrusion 4221 on the locking block 422 to rotate into one of the locking grooves 411, resulting in a locked state where the support component 3 can no longer move. Then, the locking block 422 is rotated again, causing the locking protrusion 4221 to leave the locking groove 411. At this point, the unlocking surface 4222 is separated from the locking element 41, resulting in an unlocked state where the support component 3 can move again. The self-locking component 4 not only achieves the positioning and fixation of the support component 3 but also occupies less space, offering a cost advantage.

[0053] Example 2

[0054] like Figure 5 and Figure 6 As shown, Figure 5 This is the third schematic diagram of the three-dimensional structure of the supporting mechanism; Figure 6 This is the fourth schematic diagram of the three-dimensional structure of the supporting mechanism. The difference between this embodiment and embodiment one is that the first limiting plate 312 in this embodiment is an integral structure, and the first limiting plate 312 is disposed at the end of the first side plate 3111 away from the bottom plate 3113 and the end of the second side plate 3112 away from the bottom plate 3113; a receiving groove 3121 is provided on the first limiting plate 312, and two first adjusting plates 321 are respectively slidably disposed on both sides of the receiving groove 3121. In use, the battery is located in the receiving groove 3121.

[0055] The support assembly 3 also includes a third adjustment member 34, which is disposed on the first limiting plate 312 or the support frame 311. The third adjustment member 34 includes a guide rod 341 and a second limiting plate 342. The guide rod 341 is disposed on the support frame 311 or the first limiting plate 312, and the second limiting plate 342 is slidably disposed on the guide rod 341. The support frame 311, the first limiting plate 312, and the second limiting plate 342 together constitute the receiving area 313. The second limiting plate 342 can be adjusted to accommodate batteries of different heights by sliding the second limiting plate 342 along the guide rod 341 and fixing it on the guide rod 341. Specifically, there are two guide rods 341, which are spaced apart on the support frame 311 or the first limiting plate 312. The second limiting plate 342 is slidably disposed on the two guide rods 341 to improve the stability of the second limiting plate 342 during movement. In this embodiment, the structures of the first limiting plate 312 and the second limiting plate 342 are similar.

[0056] Preferably, the third adjusting member 34 further includes two second adjusting plates 343, which are disposed opposite to each other on the second limiting plate 342 at a distance, and the two second adjusting plates 343 can move relative to the second limiting plate 342 in the X-axis direction and are located within the receiving area 313; specifically, the structure of the second adjusting plate 343 is similar to that of the first adjusting plate 321.

[0057] Example 3

[0058] like Figure 7 and Figure 8 As shown, Figure 7 This is one of the three-dimensional structural diagrams of the liquid injection device; Figure 8 This is the second three-dimensional structural diagram of the injection device. The injection device includes a support mechanism, a vacuum chamber 5, and an injection mechanism 6. The support mechanism is slidably disposed within the vacuum chamber 5, and the injection mechanism 6 is disposed within the support mechanism. In this embodiment, the support mechanism adopts the structure of Embodiment 1. The mounting base 1, the sliding fixing member 21, and the locking member 41 are all disposed within the vacuum chamber 5. The injection mechanism 6 is disposed above the support frame 311, and the injection mechanism 6 moves inside and outside the vacuum chamber 5 along with the support frame 311. Furthermore, the injection mechanism 6 adopts an existing structure, such as the injection structure disclosed in patent number "202322053617.7".

[0059] In use, the support frame 311 is pulled out of the vacuum chamber 5 by the handle 3115. The first handwheel 423 is turned so that the locking protrusion 4221 of the locking block 422 rotates into one of the locking grooves 411. At this time, the support frame 311 is fixed and cannot move. Then, the can is flipped up by the flipping fixing part of the liquid injection mechanism 6. The positions of the first adjusting plate 321 and the adjusting strip 333 are adjusted according to the size of the battery. The battery is then placed into the receiving area 313. After that, the can is flipped back to the initial position so that the liquid injection machine can... The liquid injection nozzle of the structure 6 is connected to the liquid injection port of the battery. Then, press the clamping clamp 354 to fix the battery. Then, turn the first handwheel 423 again to make the upper locking protrusion 4221 on the locking block 422 leave the locking groove 411. At this time, the support frame 311 can be moved. Push the support frame 311 into the vacuum box 5. Turn the first handwheel 423 to make the upper locking protrusion 4221 of the locking block 422 rotate into another locking groove 411. At this time, the support frame 311 is fixed and cannot move, and the battery can be injected with liquid.

[0060] Example 4

[0061] like Figure 9 As shown, Figure 9This is the third three-dimensional structural schematic diagram of the liquid injection device. The difference between this embodiment and embodiment three is that the supporting mechanism in this embodiment adopts the structure of embodiment two. The liquid injection mechanism 6 is set on the second limiting plate 342; in addition, the positions of the first adjusting plate 321, adjusting strip 333, second limiting plate 342 and second adjusting plate 343 can be adjusted according to the size of the battery itself, so as to realize the position adjustment of the receiving area 313 in the three directions of X-axis, Y-axis and Z-axis, so as to accommodate more batteries of different sizes.

[0062] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A load-bearing mechanism, characterized in that, include: Mounting base (1); A sliding component (2) is disposed on the mounting base (1); A support component (3) is connected to the sliding component (2), and the support component (3) can move relative to the mounting base (1) through the sliding component (2); as well as The self-locking assembly (4) includes a locking element (41) and a lock body (42). The locking element (41) has at least one locking groove (411). The lock body (42) includes a rotating shaft (421) and a locking block (422). The rotating shaft (421) is rotatably disposed on the support assembly (3). The locking block (422) is disposed on the rotating shaft (421). The locking groove (411) is located on the moving path of the locking block (422). The locking block (422) has an upper locking protrusion (4221) and an unlocking surface (4222) disposed opposite to each other. The size of the upper locking protrusion (4221) and the locking groove (411) are adapted to each other in the moving direction of the locking block (422). The locking protrusion (4221) is in a locked state when it rotates into the lock groove (411); the locking protrusion (4221) is in an unlocked state when it rotates away from the lock groove (411) and the unlocking surface (4222) is spaced apart from the lock fastener (41).

2. The bearing mechanism according to claim 1, characterized in that, The lock body (42) also includes a first handwheel (423), which is located at the end of the rotating shaft (421) away from the lock block (422).

3. The bearing mechanism according to claim 1, characterized in that, The lock body (42) also includes a support seat (424), which is disposed on the support assembly (3), and the rotating shaft (421) is rotatably disposed on the support seat (424).

4. The bearing mechanism according to any one of claims 1-3, characterized in that, The support assembly (3) includes a support member (31), which includes a support frame (311) and a first limiting plate (312). The support frame (311) is connected to the sliding assembly (2). The rotating shaft (421) is rotatably disposed on the support frame (311). The first limiting plate (312) is disposed on the support frame (311), and the first limiting plate (312) and the support frame (311) together constitute at least one receiving area (313).

5. The bearing mechanism according to claim 4, characterized in that, The support component (3) further includes a first adjustment member (32), which includes two first adjustment plates (321) spaced apart and oppositely disposed on the first limiting plate (312). The two first adjustment plates (321) can move in the X-axis direction within the receiving area (313) and are fixed within the receiving area (313).

6. The bearing mechanism according to claim 4, characterized in that, The support assembly (3) further includes a second adjusting member (33), which includes an adjusting support (331), a drive shaft (332), and an adjusting bar (333). The adjusting support (331) is disposed on the support frame (311), the drive shaft (332) is movably disposed on the adjusting support (331), and the adjusting bar (333) is connected to the drive shaft (332). The adjusting bar (333) can move in the Y-axis direction within the receiving area (313) and is fixed within the receiving area (313).

7. The bearing mechanism according to claim 4, characterized in that, The support assembly (3) further includes a third adjustment component (34), which includes a guide rod (341) and a second limiting plate (342). The guide rod (341) is disposed on the support frame (311) or the first limiting plate (312). The second limiting plate (342) is slidably disposed on the guide rod (341). The support frame (311), the first limiting plate (312) and the second limiting plate (342) together constitute the receiving area (313). The second limiting plate (342) can move in the Z-axis direction within the receiving area (313) and is fixed within the receiving area (313).

8. The bearing mechanism according to claim 7, characterized in that, The third adjustment component (34) further includes two second adjustment plates (343), which are arranged opposite each other at intervals on the second limiting plate (342). The two second adjustment plates (343) can move in the X-axis direction within the receiving area (313) and are fixed within the receiving area (313).

9. The bearing mechanism according to claim 4, characterized in that, The support assembly (3) further includes a clamping member (35), which includes a clamping frame (350) and a clamping clamp (354). The clamping frame (350) is disposed on the support frame (311) or the first limiting plate (312), and the clamping clamp (354) is disposed on the clamping frame (350) and located above the receiving area (313).

10. A liquid injection device, characterized in that, Includes the bearing mechanism, vacuum chamber (5) and liquid injection mechanism (6) as described in any one of claims 1-9, wherein the mounting base (1) and the locking fastener (41) are both disposed inside the vacuum chamber (5), the support component (3) is movable relative to the vacuum chamber (5), and the liquid injection mechanism (6) is disposed above the support component (3).

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