Replaceable assembly quick loosening and tightening mechanism of gradient amplifier and cabinet body structure

Abstract

The invention discloses a replaceable assembly quick loosening and tightening mechanism of a gradient amplifier and a cabinet body structure, and relates to the field of gradient amplifiers, the replaceable assembly quick loosening and tightening mechanism comprises a fixed cross beam, a movable cross beam, a loosening and tightening plate and a loosening and tightening handle which are arranged on a frame, limiting plates are formed on the sides, away from each other, of the fixed cross beam and the movable cross beam, a mounting space used for mounting a replaceable assembly is defined between the two limiting plates, the elastic plate is hinged to the frame and located on the side, away from the fixed cross beam, of the movable cross beam, and the elastic handle is hinged to the frame and located on the side, away from the fixed cross beam, of the movable cross beam. The side, close to the movable cross beam, of the elastic plate is provided with an abutting piece abutting against the movable cross beam. An abutting column is arranged at the end, away from the hinge point, of the elastic plate, a linkage plate is formed at the end of the elastic handle, the linkage plate abuts against the abutting column, and a cam face and a locking concave face are formed on the linkage plate. According to the invention, the dismounting efficiency of the replaceable component of the gradient amplifier can be improved.

Description

Technical Field

[0001] The present application relates to the field of gradient amplifiers, and in particular to a replaceable component quick release mechanism and a cabinet structure of a gradient amplifier. Background Art

[0002] A gradient amplifier is an electronic component used to amplify and process electrical signals. Its basic principle is to increase the gradient or slope of the input signal to enhance the strength of the signal for subsequent circuit processing and analysis.

[0003] The replaceable components in the gradient amplifier are electronic components. The replaceable components are usually fixed to the frame of the cabinet by bolts. During on-site repair and maintenance, the bolts need to be removed one by one to remove the replaceable components, which is inefficient. Summary of the invention

[0004] In order to improve the efficiency of disassembly and assembly of replaceable components of a gradient amplifier, the present application provides a quick tightening and loosening mechanism and a cabinet structure of replaceable components of a gradient amplifier.

[0005] The present application provides a gradient amplifier with a replaceable component quick release mechanism and a cabinet structure that adopts the following technical solutions: The cam surface and the locking concave surface are formed on the linkage plate; the locking handle is rotated, the cam surface drives the abutment column to move, the locking plate rotates, the locking member is pressed against the movable beam, and finally the locking concave surface is locked with the abutment column.

[0006] By adopting the above technical scheme, each replaceable component corresponds to two groups of quick tensioning mechanisms, one group on the top and the other group on the bottom, to fix the replaceable component. When the replaceable component is placed in the installation space between the fixed beam and the movable beam, it is first pressed against the limit plate of the fixed beam, and then the movable beam is slid to press against the replaceable component, and then the tensioning handle is turned, and the abutment column moves along the surface of the cam surface until it enters the locking concave surface. At this time, the tensioning plate rotates, so that the tightening member presses against the limit plate of the movable beam, so that the fixed beam and the movable beam can fix the replaceable component; that is, in practice, only the tensioning handle needs to be turned to realize the loosening and tightening of the movable beam, that is, to realize the fixation and relaxation of the replaceable component, which is convenient for disassembly and assembly.

[0007] Preferably, the tightening member is configured as a tightening bolt, and a plurality of the tightening bolts are provided.

[0008] By adopting the above technical solution, the tightening member is set as a tightening bolt. When the tension plate rotates toward the moving beam, the tightening bolt gradually presses against the moving beam, thereby achieving the fixation of the movable beam and the fixed beam to the replaceable component.

[0009] Preferably, gaskets are provided on both the movable crossbeam and the fixed crossbeam.

[0010] By adopting the above technical solution and using gaskets, the friction of replaceable components during disassembly and assembly can be reduced, thereby reducing damage to the replaceable components.

[0011] Preferably, L-shaped sliding blocks are provided at both ends of the movable crossbeam, a sliding groove is formed between the L-shaped sliding block and the movable crossbeam, and the sliding groove is slidably matched with the frame.

[0012] By adopting the above technical solution, a sliding groove is formed between the L-shaped slider and the movable beam, and the sliding groove and the frame are slidably matched, so that the sliding of the movable beam on the frame can be achieved by external force.

[0013] Preferably, the tensioning member is configured as a tensioning block, and the tensioning block slides on an elastic plate. A compression spring is provided in the elastic plate, and the length direction of the compression spring is consistent with the sliding direction of the tensioning block. One end of the compression spring is connected to the tensioning block, and the other end of the compression spring is connected to the inner wall of the elastic plate. The elastic plate is provided with a locking member for locking the tensioning block.

[0014] By adopting the above technical scheme, the tensioning handle is rotated until the abutting column enters the locking concave surface of the linkage plate, at which time the movement of the tensioning plate is completed. In the long-term continuous tensioning and loosening process, it is inevitable that wear and tear will occur, resulting in the tensioning plate being unable to fully act on the moving beam; therefore, in the present application, the tensioning block is in an extended state under the action of the compression spring, and when the tensioning plate rotates, the tensioning block first contacts the moving beam, and then the tensioning block will slide into the tensioning plate until the rotation stroke of the tensioning plate is completed, and the tensioning block is locked by the locking piece, at which time the tensioning block is pressed against the moving beam; in practice, even if wear and tear occurs, the tensioning block can always be pressed against the moving beam under the action of the compression spring, and after the rotation of the tensioning handle is completed, the locking piece locks the tensioning block.

[0015] Preferably, the abutment column is rotatably connected to the elastic plate.

[0016] By adopting the above technical solution, when the tensioning handle is turned, the linkage plate will drive the abutment column to move, and friction will be generated between the linkage plate and the abutment column. Long-term tensioning will cause wear on the surface of the abutment column or the linkage plate, affecting the tightening effect of the tensioning plate on the moving beam. The friction between the linkage plate and the abutment column can be reduced by rotating the abutment column, which helps to reduce the wear between the abutment column and the linkage plate and ensure the tightening effect.

[0017] Preferably, the locking member is configured as a locking tooth, and the locking tooth is slidably arranged in the elastic plate. An auxiliary rack is formed on the side of the clamping block. When the locking tooth slides, the locking tooth engages with the auxiliary rack to lock the clamping block.

[0018] By adopting the above technical solution, when the tensioning handle rotates to drive the tensioning plate to rotate, after the rotation stroke of the tensioning plate is completed, the locking tooth slides and just engages with the auxiliary rack to achieve locking of the clamping block, thereby ensuring the clamping effect of the clamping block on the moving beam.

[0019] Preferably, the linkage plate is formed with a plurality of driving teeth on the side of the cam surface, and the driving teeth are distributed along the contour of the cam surface. A driven gear is coaxially fixed on the abutment column, and when the tensioning handle is rotated, the driving teeth on the linkage plate mesh with the driven gear; a linkage gear meshing with the driven gear is rotatably connected in the tensioning plate, and a connecting rod is hinged on the linkage gear, and the hinge point between the connecting rod and the linkage gear is eccentrically arranged with the linkage gear, and a sliding plate is slidingly arranged in the tensioning plate, and the end of the connecting rod away from the linkage gear is hinged to the sliding plate; a sliding groove is provided on the sliding plate, and the lower end of the locking tooth is in a T-shaped block shape, and the lower end of the locking tooth is The sliding groove slides together, and the sliding plate is provided with an abutment spring in the sliding groove, and the abutment spring is located on the side of the locking tooth close to the abutment block, one end of the abutment spring is connected to the inner wall of the sliding groove, and the other end of the abutment spring is connected to the locking tooth. A baffle is also provided in the tension plate, and the baffle is located on the side of the locking tooth away from the abutment block; in the open state, the locking tooth abuts against the baffle, and the abutment spring is in a compressed state at this time; when switching from the open state to the closed state, the sliding plate slides, and the abutment spring gradually extends. When the abutment spring is completely released, the sliding plate drives the locking tooth to slide synchronously in the direction of the abutment block until the locking tooth and the auxiliary rack are engaged.

[0020] By adopting the above technical solution, when switching from the open state to the closed state, the tensioning handle is turned, and the driving tooth on the linkage plate drives the driven gear on the abutment column to rotate, and the abutment column rotates accordingly, and the abutment column drives the linkage gear to rotate through the driven gear. When the linkage gear rotates, the sliding plate is driven to slide through the connecting rod, and the sliding plate slides in the direction away from the linkage gear. At this time, the locking tooth and the sliding groove slide relative to each other. At this time, the locking tooth abuts against the baffle plate under the action of the abutment spring. When the sliding plate slides until the abutment spring is completely released, the sliding plate can drive the locking tooth to slide in the direction of the abutment block until the locking tooth meshes with the auxiliary rack to achieve locking of the abutment block. At this time, the rotation stroke of the tensioning plate is completed. When the lock is unlocked, the spring will release the spring, which will in turn cause the lock to slide back into effect, and the locking tooth will slide accordingly. When the locking tooth abuts against the baffle, the slide plate continues to slide. At this time, the abutment spring is compressed. At this time, the abutment spring is compressed, and the abutment spring will produce a certain resistance to the sliding of the slide plate. That is, the torque of the lock handle will increase when it is switched from the closed state to the open state, and when it is switched from the open state to the closed state, the abutment spring will assist the sliding of the slide plate, thereby reducing the torque when the lock handle is rotated. This ensures that the lock is closed easily and can be closed quickly, but is relatively difficult to open, thereby preventing the lock handle from opening due to accidental touch, thereby affecting the installation stability of the replaceable components.

[0021] A cabinet structure of a gradient amplifier comprises a cabinet body, on which a plurality of horizontally arranged frames are vertically arranged, and the cabinet body also comprises the above-mentioned quick release mechanism, wherein the quick release mechanism is relatively arranged between adjacent frames, and the two quick release mechanisms between adjacent frames fix replaceable components.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. Turn the tension handle, the linkage plate of the tension handle abuts against the abutment column. Under the action of the cam surface of the linkage plate, the abutment column moves, which can drive the tension plate to rotate until the abutment column enters the locking concave surface. At this time, the top tightening piece and the moving crossbeam are tightly pressed to fix the replaceable component. Similarly, when disassembling, you only need to twist the tension handle again to quickly loosen the replaceable component. 2. The pressing block can be adapted to the pressing action of different positions of the moving beam by sliding on the tension plate, that is, it can be adapted to the fixation of replaceable components of different sizes. In addition, when wear occurs between the abutment column and the tension handle, the rotation stroke of the tension handle will change. The pressing block can always ensure the pressing action of the pressing block on the moving beam by sliding; 3. The tension handle rotates, the driving gear drives the driven gear on the abutment column to rotate, the driven gear then drives the linkage gear to rotate, the linkage gear drives the sliding plate to slide through the connecting rod, the sliding plate slides and drives the locking gear to slide, the locking gear and the auxiliary rack on the abutment block are meshed to achieve the locking of the abutment block, otherwise the abutment block will slip, affecting the abutment effect; 4. In the open state, the locking teeth and the baffle are abutted, and the abutting spring is in a compressed state. When the tension handle is turned, the abutting spring assists the movement of the sliding plate, making it easier for the user to turn the tension handle. When moving from the closed state to the open state, the sliding plate drives the locking teeth and the baffle to abut, and then when the sliding plate continues to slide, the abutting spring is compressed. At this time, the abutting spring generates resistance to the sliding of the sliding plate, which can prevent the tension handle from rotating due to accidental touch, affecting the installation stability of the replaceable component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the quick tensioning mechanism in the present application; Figure 2 This is a partial structural diagram of the first embodiment of the quick tensioning mechanism in the present application, which mainly reflects the structure of the tensioning handle; Figure 3 This is a schematic diagram of a moving beam in the first embodiment of the quick tensioning and loosening mechanism in the present application; Figure 4 This is a schematic diagram of the structure of the tensioning plate in the third embodiment of the quick tensioning mechanism in the present application; Figure 5This is a schematic cross-sectional view of the tensioning plate in the third embodiment of the quick tensioning mechanism in the present application; Figure 6 for Figure 5 A partial enlarged view of middle A; Figure 7 for Figure 5 A partial enlarged view of B in the middle; Figure 8 This is a partial structural diagram of the third embodiment of the quick tensioning and loosening mechanism in the present application, which mainly reflects the structure of the sliding plate; Fig. 9 It is a schematic diagram of the overall structure of the cabinet structure in this application.

[0024] Figure numerals: 1. fixed beam; 11. gasket; 2. movable beam; 21. L-shaped slider; 22. sliding groove; 3. tension plate; 31. compression spring; 32. linkage gear; 321. connecting rod; 33. baffle; 4. tension handle; 5. limit plate; 51. installation space; 6. tightening member; 61. tightening bolt; 62. tightening block; 621. auxiliary rack; 622. sliding groove; 7. abutment column; 71. driven gear; 8. linkage plate; 81. cam surface; 82. locking concave surface; 83. driving tooth; 9. locking tooth; 10. sliding plate; 101. sliding groove; 102. abutment spring; 20. cabinet body; 30. frame. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-9 This application is described in further detail.

[0026] An embodiment of the present application discloses a quick release mechanism for a replaceable component of a gradient amplifier.

[0027] Example 1 Reference Figure 1 and Figure 2 The quick tensioning mechanism of the replaceable component of the gradient amplifier includes a fixed beam 1, a movable beam 2, a tensioning plate 3 and a tensioning handle 4 arranged on a frame 30, the fixed beam 1 is fixed to the frame 30 by screws, the movable beam 2 is slidably connected to the frame 30, and a limit plate 5 is formed on the side where the fixed beam 1 and the movable beam 2 are away from each other, and an installation space 51 for installing replaceable components is formed between the two limit plates 5; one end of the tensioning plate 3 is hinged to the frame 30, the tensioning plate 3 is located on the side where the movable beam 2 is away from the fixed beam 1, and a tensioning member 6 that is pressed against the movable beam 2 is arranged on the side of the tensioning plate 3 close to the movable beam 2, and an abutment column 7 is fixedly installed on the end of the tensioning plate 3 away from the hinge point.

[0028] The tensioning handle 4 is hinged on the frame 30, and a linkage plate 8 is formed at the end of the tensioning handle 4, which abuts against the abutting column 7. A cam surface 81 and a locking concave surface 82 are formed on the linkage plate 8. When the tensioning handle 4 is rotated, the abutting column 7 is driven to move under the action of the cam surface 81, that is, the tensioning plate 3 is driven to rotate until the abutting column 7 enters the locking concave surface 82. At this time, the tightening member 6 is pressed against the movable beam 2, and the movable beam 2 cooperates with the fixed beam 1 to fix the replaceable component.

[0029] In practice, each replaceable component corresponds to two sets of quick tensioning mechanisms, one set at the top and one set at the bottom, which simultaneously fix the replaceable component. The replaceable component can be quickly fixed and loosened by rotating the tensioning handle 4, and the disassembly and assembly efficiency is higher.

[0030] The tensioning member 6 is configured as a tensioning bolt 61, and a plurality of tensioning bolts 61 are configured. Two tensioning bolts 61 are taken as an example in the present application. The two tensioning bolts 61 are fixed on the tensioning plate 3 and abut against the movable crossbeam 2 to fix the replaceable component.

[0031] Gaskets 11 are installed on both the movable beam 2 and the fixed beam 1. The gaskets 11 are made of plastic parts with a low friction coefficient. The gaskets 11 can reduce the friction of the replaceable components during disassembly and assembly, thereby reducing damage to the replaceable components.

[0032] Reference Figure 1 and Figure 3 Both ends of the movable beam 2 are fixedly connected with L-shaped sliders 21 by screws, and a sliding groove 22 is formed between the L-shaped slider 21 and the movable beam 2. The sliding groove 22 and the frame 30 slide together, and the sliding of the movable beam 2 on the frame 30 can be achieved by external force. When installing replaceable components, the movable beam 2 can be slid to the side away from the fixed beam 1, so that the installation space 51 becomes larger, which is convenient for quickly placing replaceable components.

[0033] The implementation principle of the quick tensioning mechanism of a replaceable component of a gradient amplifier in the embodiment of the present application is as follows: by turning the handle, the abutment column 7 can be driven to move under the action of the cam surface 81 of the linkage plate 8, so as to realize the rotation of the tensioning plate 3, until the abutment column 7 enters the locking concave surface 82, at which time the tightening bolt 61 is pressed against the moving crossbeam 2 to clamp and fix the replaceable component. That is, by turning the tensioning handle 4, the tightening action of the replaceable component can be realized, which helps to improve the efficiency of disassembling and assembling the replaceable component.

[0034] Example 2 The difference between this embodiment and the first embodiment is that the abutment column 7 is rotatably connected to the tension plate 3. When the tension handle 4 is rotated, the linkage plate 8 drives the abutment column 7 to move, and friction is generated between the linkage plate 8 and the abutment column 7. Long-term tensioning and loosening actions will cause wear on the surface of the abutment column 7 or the linkage plate 8, affecting the tightening effect of the tension plate 3 on the moving crossbeam 2. The rotation of the abutment column 7 can reduce the friction between the linkage plate 8 and the abutment column 7, thereby helping to reduce the wear between the abutment column 7 and the linkage plate 8, thereby ensuring the tightening effect.

[0035] Example 3 Reference Figure 4 , Figure 5 and Figure 6 The difference between this embodiment and embodiment 2 is that the tensioning member 6 is configured as a tensioning block 62, the tensioning block 62 slides on the elastic plate 3, and a compression spring 31 is installed in the elastic plate 3, the length direction of the compression spring 31 is consistent with the sliding direction of the tensioning block 62, one end of the compression spring 31 is connected to the tensioning block 62, and the other end is connected to the inner wall of the elastic plate 3, and a locking member for locking the tensioning block 62 is provided on the elastic plate 3.

[0036] Under normal circumstances, when the tension plate 3 rotates, the abutting block 62 first abuts against the moving cross beam 2, and then the abutting block 62 slides relative to the tension plate 3, and the compression spring 31 is compressed. When the tension plate 3 rotates, the locking member locks the abutting block 62. At this time, the abutting block 62 abuts against the moving cross beam 2 to fix the replaceable component.

[0037] When wear occurs between the tension handle 4 and the abutment column 7, the rotation stroke of the tension plate 3 will decrease, resulting in the inability to abut against the moving beam 2. The problem can be solved by the sliding of the abutment block 62 in this embodiment. The sliding of the abutment block 62 can adapt to different spacings between the tension plate 3 and the moving beam 2. The abutment block 62 can always abut against the moving beam 2 to ensure the fixing effect of the replaceable component. In addition, when the size of the replaceable component changes slightly, the setting of the abutment block 62 also ensures the fixation of the replaceable component.

[0038] The locking member is configured as a locking tooth 9, which is slidably connected in the tension plate 3. An auxiliary rack 621 is integrally formed on the side of the abutting block 62. The locking tooth 9 slides and meshes with the auxiliary rack 621 to achieve locking of the abutting block 62. When the tension handle 4 ends rotating, that is, when the tension plate 3 ends rotating, the locking tooth 9 just meshes with the auxiliary rack 621.

[0039] Reference Figure 4 , Figure 5 and Figure 7The linkage plate 8 is formed with a plurality of continuous driving teeth 83 on the side of the cam surface 81. The driving teeth 83 are distributed along the profile of the cam surface 81. A driven gear 71 is coaxially fixed on the abutment column 7. When the tensioning handle 4 rotates, the driving teeth 83 mesh with the driven gear 71. The tensioning plate 3 is rotatably connected with a linkage gear 32 meshing with the driven gear 71. The linkage gear 32 is hinged with a connecting rod 321. The hinge point between the connecting rod 321 and the linkage gear 32 is eccentrically arranged with the linkage gear 32. The tensioning plate 3 is slidably connected with a sliding plate 10. The end of the connecting rod 321 away from the linkage gear 32 is hinged with the sliding plate 10.

[0040] Reference Figure 5 , Figure 6 and Figure 8 A sliding groove 622 is provided in the middle of the abutting block 62, and the sliding plate 10 is slidably matched with the sliding groove 622, and the height of the sliding groove 622 is greater than the height of the sliding plate 10, that is, the abutting block 62 can slide relative to the sliding plate 10. A sliding groove 101 is provided on the sliding plate 10, and the sliding groove 101 is a T-shaped groove. The lower end of the locking tooth 9 is in a T-shaped block shape, and the lower end of the locking tooth 9 is slidably matched with the sliding groove 101. The sliding plate 10 is located in the sliding groove 101 and is installed with an abutting spring 102. The abutting spring 102 is located on the side of the locking tooth 9 close to the abutting block 62. One end of the abutting spring 102 is connected to the inner wall of the sliding groove 101, and the other end is connected to the locking tooth 9. A baffle 33 is also fixedly connected to the elastic plate 3. The baffle 33 is located on the side of the locking tooth 9 away from the abutting block 62. In the open state, the locking tooth 9 abuts against the baffle 33, and the abutting spring 102 is in a compressed state.

[0041] From the open state to the closed state, the tension handle 4 is rotated, the driving tooth 83 drives the driven gear 71 to rotate, the driven gear 71 drives the linkage gear 32 to rotate, and the linkage gear 32 drives the sliding plate 10 to slide in the direction away from the linkage gear 32 through the connecting rod 321. At this time, because the abutment spring 102 is in a compressed state, the abutment spring 102 acts on the locking tooth 9, and the locking tooth 9 will continue to abut against the baffle 33, and the sliding plate 10 and the locking tooth 9 will slide relative to each other. When the abutment spring 102 is completely released, the abutment spring 102 has no force acting on the locking tooth 9, and the sliding plate 10 will drive the locking tooth 9 to slide synchronously until the locking tooth 9 and the auxiliary rack 621 are engaged, thereby locking the abutment block 62. When the abutment column 7 enters the locking concave surface 82, the driving tooth 83 and the driven gear 71 disengage. When the abutment column 7 enters the locking concave surface 82, the abutment column 7 will rotate slightly with the cooperation of the locking concave surface 82. Through the setting of the abutment spring 102, after the locking tooth 9 and the auxiliary rack 621 are engaged, the sliding plate 10 can slide slightly and the abutment spring 102 is stretched. At this time, the force of the abutment spring 102 acts on the locking tooth 9, so that the locking tooth 9 and the auxiliary rack 621 are more tightly engaged, thereby improving the locking effect.

[0042] From the closed state to the open state, the tension handle 4 is reversed, the sliding plate 10 slides in the opposite direction, and the locking tooth 9 slides accordingly. When the locking tooth 9 abuts against the baffle 33, the sliding plate 10 continues to slide, and the abutting spring 102 is compressed until the tension handle 4 stops rotating.

[0043] In addition, when gradually opening, the sliding plate 10 slides and the abutment spring 102 is compressed, and the abutment spring 102 produces a certain resistance to the sliding of the sliding plate 10, that is, the torque of the tension handle 4 will increase when it is from the closed state to the open state; and when it is from the open state to the closed state, under the action of the abutment spring 102, the sliding of the sliding plate 10 is assisted, that is, the torque when the tension handle 4 is rotated is reduced; this ensures that it is easier to close, can be closed quickly and is relatively difficult to open, and prevents the tension handle 4 from opening due to accidental touch, thereby affecting the installation stability of the replaceable component.

[0044] Reference Fig. 9 The embodiment of the present application also discloses a cabinet structure of a gradient amplifier, including a cabinet body 20, on which a plurality of frames 30 are vertically installed, and the frames 30 are horizontally arranged; and also includes a plurality of quick release mechanisms in any of the above embodiments, and quick release mechanisms are relatively installed between adjacent frames 30, and the two quick release mechanisms between adjacent frames 30 fix the replaceable components.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A quick release mechanism for replaceable components of a gradient amplifier, characterized in that: The invention comprises a fixed crossbeam (1), a movable crossbeam (2), an elastic plate (3) and an elastic handle (4) arranged on a frame (30); the movable crossbeam (2) slides on the frame (30); a limiting plate (5) is formed on the side of the fixed crossbeam (1) and the movable crossbeam (2) away from each other; an installation space (51) for installing a replaceable component is formed between the two limiting plates (5); the elastic plate (3) is hinged on the frame (30); the elastic plate (3) is located on the side of the movable crossbeam (2) away from the fixed crossbeam (1); the elastic handle (4) is hinged on the frame (30); the elastic plate ( 3) A tensioning member (6) is provided on one side close to the movable cross beam (2) and is pressed against the movable cross beam (2); an abutting column (7) is provided on one end of the tensioning plate (3) away from the hinge point, and a linkage plate (8) is formed at the end of the tensioning handle (4), and the linkage plate (8) is in abutment with the abutting column (7), and a cam surface (81) and a locking concave surface (82) are formed on the linkage plate (8); when the tensioning handle (4) is rotated, the cam surface (81) drives the abutting column (7) to move, the tensioning plate (3) rotates, the tensioning member (6) is pressed against the movable cross beam (2), and finally the locking concave surface (82) is locked with the abutting column (7).

2. The quick release mechanism for replaceable components of a gradient amplifier according to claim 1, characterized in that: The tightening member (6) is provided as a tightening bolt (61), and a plurality of the tightening bolts (61) are provided.

3. The quick release mechanism for replaceable components of a gradient amplifier according to claim 1, characterized in that: Gaskets (11) are provided on both the movable crossbeam (2) and the fixed crossbeam (1).

4. The quick release mechanism for replaceable components of a gradient amplifier according to claim 1, characterized in that: L-shaped sliding blocks (21) are provided at both ends of the movable crossbeam (2), a sliding groove (22) is formed between the L-shaped sliding block (21) and the movable crossbeam (2), and the sliding groove (22) is slidably matched with the frame (30).

5. The quick release mechanism for replaceable components of a gradient amplifier according to claim 1, characterized in that: The tensioning member (6) is configured as a tensioning block (62), and the tensioning block (62) slides on the tensioning plate (3). A compression spring (31) is provided inside the tensioning plate (3), and the length direction of the compression spring (31) is consistent with the sliding direction of the tensioning block (62). One end of the compression spring (31) is connected to the tensioning block (62), and the other end of the compression spring (31) is connected to the inner wall of the tensioning plate (3). A locking member for locking the tensioning block (62) is provided on the tensioning plate (3).

6. The quick release mechanism for replaceable components of a gradient amplifier according to claim 5, characterized in that: The abutment column (7) is rotatably connected to the elastic plate (3).

7. The quick release mechanism for replaceable components of a gradient amplifier according to claim 6, characterized in that: The locking member is configured as a locking tooth (9), and the locking tooth (9) is slidably disposed in the elastic plate (3). An auxiliary rack (621) is formed on the side of the abutting block (62). When the locking tooth (9) slides, the locking tooth (9) engages with the auxiliary rack (621) to achieve locking of the abutting block (62).

8. The quick release mechanism for replaceable components of a gradient amplifier according to claim 7, characterized in that: The linkage plate (8) is formed with a plurality of driving teeth (83) on the side of the cam surface (81), and the driving teeth (83) are distributed along the contour of the cam surface (81). A driven gear (71) is coaxially fixed on the abutment column (7). When the tensioning handle (4) rotates, the driving teeth (83) on the linkage plate (8) mesh with the driven gear (71). A linkage gear (32) meshing with the driven gear (71) is rotatably connected inside the tensioning plate (3). A connecting rod (321) is hinged on the linkage gear (32), and the hinge point between the connecting rod (321) and the linkage gear (32) is eccentrically arranged with the linkage gear (32). A sliding plate (10) is slidingly arranged in the tension plate (3), and one end of the connecting rod (321) away from the linkage gear (32) is hinged to the sliding plate (10); a sliding groove (101) is provided on the sliding plate (10), and the lower end of the locking tooth (9) is in a T-shaped block shape, and the lower end of the locking tooth (9) is in contact with the sliding groove (101). 101) sliding fit, and the sliding plate (10) is provided with an abutting spring (102) in the sliding groove (101), the abutting spring (102) is located on the side of the locking tooth (9) close to the abutting block (62), one end of the abutting spring (102) is connected to the inner wall of the sliding groove (101), and the other end of the abutting spring (102) is connected to the locking tooth (9), and a baffle (33) is also provided in the tension plate (3), and the baffle (33) is located on the locking tooth ( 9) is on a side away from the abutment block (62); in the open state, the locking tooth (9) abuts against the baffle plate (33), and the abutment spring (102) is in a compressed state; when switching from the open state to the closed state, the sliding plate (10) slides, and the abutment spring (102) gradually extends. When the abutment spring (102) is completely released, the sliding plate (10) drives the locking tooth (9) to slide synchronously in the direction of the abutment block (62) until the locking tooth (9) and the auxiliary rack (621) are engaged.

9. A cabinet structure of a gradient amplifier, comprising a cabinet body (20), wherein a plurality of horizontally arranged frames (30) are vertically arranged on the cabinet body (20), characterized in that: It also comprises a plurality of quick release mechanisms as claimed in any one of claims 1 to 8, wherein the quick release mechanisms are arranged relatively between adjacent frames (30), and the two quick release mechanisms between adjacent frames (30) fix the replaceable components.

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