Mind mapping tool for economic management
By designing slidable control components and polygonal groove structure, flexible release and fixing between the connecting base and the fixed block in the mind map tool is achieved, solving the cumbersome problems of sorting work in the existing technology and improving operational efficiency.
Patent Information
- Application Number
- CN202510361088.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-06-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing mind map tool for economic management cannot simultaneously unconnect the connection between the connecting base and the fixed block after use, resulting in cumbersome sorting work.
A mind map tool including fixed blocks, connecting bases, polygonal slots and control components is designed. By sliding the control component, the connection between the connecting base and the fixed block close to the station one can be separately released at the station one at a time, and the connection between all the connecting base and the fixed block is released at the station two.
It greatly reduces the cumbersomeness of the organization work, simplifies expansion and disassembly operations, and improves usage efficiency.
Smart Images

Figure CN120220510A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of mind mapping tools, and more particularly to a mind mapping tool for economic management. Background Art
[0002] A mind map is an effective graphic thinking tool for expressing divergent thinking. A mind map can embody ideas in the form of a tree diagram, etc. Therefore, in order to conveniently transform ideas into an intuitive form, a mind mapping tool for economic management is required, among which a tree diagram is particularly suitable for economic management.
[0003] Chinese invention patent with publication number CN108735046B discloses a mind mapping tool for economic management, which includes a display board body, a plurality of extension piles and a plurality of connectors. The extension piles are detachably connected to the upper surface of the display board body, and any two extension piles are detachably connected by a connector; the extension pile includes a seat body detachably connected to the display board body, a top board is arranged above the seat body, the top board and the seat body are detachably connected in a clamping manner, and an identification board is arranged on the top surface of the top board, and the identification board is fixed to the top board.
[0004] In this technical solution, the following deficiencies exist:
[0005] In this technical solution, the first groove and the second groove are used to fix the chuck, and then different extension piles are connected through the chuck, and then the top cover is used to completely fix the chuck and the extension pile. This kind of clamping method is too cumbersome in the operation process when using the extension pile with an extended heart of the chuck, and the effect of completely releasing the chuck cannot be achieved, resulting in a more cumbersome sorting work after use. Summary of the Invention
[0006] The purpose of the present invention is to provide a mind mapping tool for economic management to solve the technical problem that in the prior art, the connection between the connection seat and the fixing block cannot be released simultaneously, resulting in a cumbersome sorting work after use.
[0007] The present invention provides a mind mapping tool for economic management, including:
[0008] A fixing block, the fixing block is of a polygonal structure, fixing holes are formed on the side walls of the fixing block, and the fixing block is used for fixing an identification board to intuitively reflect economic management ideas;
[0009] A connection seat, the connection seat is adapted to the fixing hole, a rectangular hole is formed on one side of the connection seat, and a fixing component is arranged in the rectangular hole for fixing the connection seat and the fixing block;
[0010] A polygonal groove, the polygonal groove is formed on the top of the fixing block, and the number of sides of the polygonal groove is the same as the number of sides of the fixing block;
[0011] A control component, which is slidably arranged at the bottom of the polygonal groove. The control component includes Station 1 and Station 2. Among them, there are multiple Stations 1. When the control component is at Station 1, the fixation state between the connection seat and the fixed block close to Station 1 is released. When the control component is at Station 2, the fixation state between all connection seats and fixed blocks is released.
[0012] Preferably, the fixing component includes:
[0013] Two limiting blocks, one side of each of the two limiting blocks is a bevel structure, and the two limiting blocks are both slidably arranged in the rectangular hole;
[0014] Two fixing grooves, which are opened on both sides of the fixing hole, and the fixing grooves are adapted to the limiting blocks;
[0015] A first spring, with both ends of the first spring fixed to the two limiting blocks respectively;
[0016] A transmission component, which is used to drive the two limiting blocks to approach each other, and the transmission component is slidably arranged at the bottom of the rectangular hole.
[0017] Preferably, the transmission component includes:
[0018] Two first connecting rods, which are respectively rotatably connected to the two limiting blocks;
[0019] A sliding groove, which is opened at the bottom of the rectangular hole;
[0020] A connecting block, which is slidably arranged in the sliding groove, and both first connecting rods are rotatably connected to the connecting block.
[0021] Preferably, it further includes:
[0022] A connecting groove, which is opened on one side of the rectangular hole, and a piston block is slidably arranged in the connecting groove;
[0023] A first transmission rod, which is fixed to one side of the piston block, and the first transmission rod abuts against the connecting block;
[0024] A second transmission rod, which is arranged on the other side of the piston block, and the second transmission rod penetrates through the inner wall of the polygonal groove.
[0025] Preferably, the control component includes:
[0026] A sleeve, which is slidably arranged at the bottom of the polygonal groove;
[0027] A piston plate, which is slidably arranged in the sleeve;
[0028] A sleeve rod, which is arranged on the piston plate, and a button is arranged at the top of the sleeve rod;
[0029] A connecting pipe for communicating the sleeve and the connecting groove.
[0030] Preferably, a plurality of mounting grooves are formed at equal intervals at the bottom of the fixing block, and magnets are fixed in the mounting grooves.
[0031] Preferably, there are two connecting seats, and an elastic rope is fixed to the opposite side walls of the two connecting seats.
[0032] Preferably, it further includes:
[0033] A storage box adapted to the fixing block, and a receiving groove is formed at the bottom of the storage box near the sleeve rod;
[0034] A frame slidably disposed on the inner side wall of the storage box;
[0035] A cover body hinged to the top of the frame;
[0036] Two second connecting rods symmetrically arranged, and both of the two second connecting rods are rotatably connected to the frame;
[0037] Two connecting rods are both slidably disposed on the inner side wall of the receiving groove, and both of the two connecting rods penetrate through the inner side wall of the storage box, and the two connecting rods are rotatably connected to the two second connecting rods one by one;
[0038] Two arc-shaped plates are respectively disposed at the ends of the two connecting rods, and both of the two arc-shaped plates are adapted to the sleeve rod;
[0039] Two second springs are respectively disposed on the two arc-shaped plates, and both of the two second springs are fixed to the inner side wall of the receiving groove;
[0040] An iron block disposed on the inner bottom wall of the storage box.
[0041] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0042] (1) By providing the control component, the polygonal groove, the fixing component and the connecting seat, the present invention can, during use, when the control component is slid to any one of the working positions, separately release the connection between the connecting seat close to the working position one and the fixing block, and when the control component is in the working position two, immediately release the connection between all the connecting seats and the fixing blocks, greatly reducing the complexity of the sorting work.
[0043] (2) By providing the limiting blocks, fixing holes, fixing grooves and the first spring, the present invention can achieve that during use, by squeezing the connecting seat, the connecting seat is forced to slide along the fixing hole. During this process, through the inclined surface structure on the limiting blocks, the two limiting blocks enter the rectangular holes on the connecting seat, compressing the first spring. When the two limiting blocks move to the fixing grooves, under the action of the first spring, the two limiting blocks are driven into the fixing grooves to achieve the fixation between the connecting seat and the fixing block, reducing the complexity of the operation during expansion. BRIEF DESCRIPTION OF THE DRAWINGS
[0044] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0045] Figure 1 is the three-dimensional structure schematic diagram of the present invention;
[0046] Figure 2 is the structure schematic diagram of the connecting seat and the elastic rope of the present invention;
[0047] Figure 3 is the structure schematic diagram of the fixing block and the magnet of the present invention;
[0048] Figure 4 is the sectional structure schematic diagram of the fixing block of the present invention;
[0049] Figure 5 is the exploded structure schematic diagram of the limiting block and the connecting seat of the present invention;
[0050] Figure 6 is the structure schematic diagram of the first transmission rod and the fixing block of the present invention;
[0051] Figure 7 is the Figure 6 partial enlarged structure schematic diagram at A in the present invention;
[0052] Figure 8 is the sectional structure schematic diagram of the sleeve of the present invention;
[0053] Figure 9 is the structure schematic diagram of the fixing block and the storage box in the second embodiment of the present invention;
[0054] Figure 10 is the exploded structure schematic diagram of the storage box, the frame body and the cover body in the second embodiment of the present invention;
[0055] Figure 11 is the sectional front view structure schematic diagram of the storage box in the second embodiment of the present invention;
[0056] Figure 12 It is a schematic cross-sectional structure diagram of the storage box according to the second embodiment of the present invention.
[0057] Reference numerals:
[0058] 1. Fixed block; 2. Connecting seat; 3. Elastic rope; 4. Polygonal groove; 5. Fixed hole; 6. Magnet; 7. Connecting groove; 8. Fixed groove; 9. Limiting block; 10. First transmission rod; 11. First spring; 12. First connecting rod; 13. Connecting block; 14. Slide groove; 15. Piston block; 16. Second transmission rod; 17. Connecting pipe; 18. Sleeve; 19. Piston plate; 20. Sleeve rod; 21. Button; 22. Storage box; 23. Cover body; 24. Frame body; 25. Iron block; 26. Second connecting rod; 27. Connecting rod; 28. Second spring; 29. Arc plate. Detailed implementation manners
[0059] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.
[0060] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.
[0061] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0062] Next, in combination with Figures 1 to 8 As shown, the embodiments of the present invention provide a mind mapping tool for economic management, including:
[0063] The fixed block 1 is of a polygonal structure, and fixing holes 5 are formed in the side walls of the fixed block 1. The fixed block 1 is used to fix the identification plate to visually reflect the economic management idea;
[0064] The connecting seat 2 is adapted to the fixed hole 5. A rectangular hole is formed on one side of the connecting seat 2, and a fixing component is arranged in the rectangular hole for fixing the connecting seat 2 and the fixed block 1;
[0065] The polygonal groove 4 is formed at the top of the fixed block 1, and the number of sides of the polygonal groove 4 is the same as that of the fixed block 1;
[0066] The control component is slidably arranged at the bottom of the polygonal groove 4. The control component includes a first station and a second station. Among them, there are multiple first stations. When the control component is at the first station, the fixed state between the connecting seat 2 close to the first station and the fixed block 1 is released. When the control component is at the second station, the fixed states between all the connecting seats 2 and the fixed blocks 1 are released.
[0067] When the control component is slid to any one of the first stations, the connection between the connecting seat 2 close to the first station and the fixed block 1 is separately released. When the control component is at the second station, the connections between all the connecting seats 2 and the fixed blocks 1 are immediately released, greatly reducing the complexity of the sorting work.
[0068] Furthermore, the fixing component includes:
[0069] Two limiting blocks 9, both sides of the two limiting blocks 9 are bevel structures, and the two limiting blocks 9 are both slidably arranged in the rectangular holes;
[0070] Two fixing grooves 8 are opened on both sides of the fixing hole 5, and the fixing grooves 8 are adapted to the limiting blocks 9;
[0071] A first spring 11, and both ends of the first spring 11 are fixed to the two limiting blocks 9 respectively;
[0072] A transmission component is used to drive the two limiting blocks 9 to approach each other, and the transmission component is slidably arranged at the bottom of the rectangular hole.
[0073] Insert the connecting seat 2 into the fixing hole 5, and by squeezing the connecting seat 2, force the connecting seat 2 to slide along the fixing hole 5. During this process, through the bevel structure on the limiting block 9, the two limiting blocks 9 enter the rectangular holes on the connecting seat 2, compressing the first spring 11. When the two limiting blocks 9 move to the fixing grooves 8, under the action of the first spring 11, drive the two limiting blocks 9 into the fixing grooves 8 to realize the fixation between the connecting seat 2 and the fixed block 1.
[0074] Furthermore, the transmission component includes:
[0075] Two first connecting rods 12, and the two first connecting rods 12 are respectively rotatably connected to the two limiting blocks 9;
[0076] A chute 14 is opened at the bottom of the rectangular hole;
[0077] A connecting block 13 is slidably arranged in the chute 14, and both of the two first connecting rods 12 are rotatably connected to the connecting block 13.
[0078] When the connecting block 13 moves, under the action of the two first connecting rods 12, drive the two limiting blocks 9 to approach each other, and the connection between the connecting seat 2 and the fixed block 1 can be released.
[0079] Furthermore, it further includes:
[0080] A connecting groove 7 is provided on one side of the rectangular hole, and a piston block 15 is slidably arranged in the connecting groove 7;
[0081] A first transmission rod 10 is fixed on one side of the piston block 15, and the first transmission rod 10 abuts against the connecting block 13;
[0082] A second transmission rod 16 is arranged on the other side of the piston block 15, and the second transmission rod 16 penetrates the inner wall of the polygonal groove 4.
[0083] The control assembly includes:
[0084] A sleeve 18 is slidably arranged at the bottom of the polygonal groove 4;
[0085] A piston plate 19 is slidably arranged in the sleeve 18;
[0086] A sleeve rod 20 is arranged on the piston plate 19, and a button 21 is arranged at the top of the sleeve rod 20;
[0087] A connecting pipe 17 is used to connect the sleeve 18 and the connecting groove 7.
[0088] Press the button 21, so that the sleeve rod 20 contracts into the sleeve 18. During the contraction process of the sleeve rod 20, the gas in the sleeve 18 is pressed into the connecting groove 7 through the piston plate 19. Under the action of air pressure, the piston block 15 is driven to move, and then the first transmission rod 10 is pushed to move. Similarly, through the connecting block 13 and the first connecting rod 12, the two limiting blocks 9 on the same connecting seat 2 are driven to approach each other, thereby releasing the connection between all the connecting seats 2 and the fixed block 1, greatly reducing the complexity of the sorting work.
[0089] Furthermore, a plurality of equally spaced installation grooves are provided at the bottom of the fixed block 1, and magnets 6 are fixed in the installation grooves.
[0090] Furthermore, there are two connecting seats 2, and an elastic cord 3 is fixed on the opposite side walls of the two connecting seats 2.
[0091] The specific working method is as follows: When it is necessary to visually embody the ideas of economic management, first fix the fixing block 1 on the magnetic blackboard through the magnet 6, and then adsorb the signboard on the fixing block 1 under the action of magnetic force. The signboard is marked with a single idea introduction. Similarly, when fixing multiple fixing blocks 1 on the magnetic blackboard and it is necessary to associate the signboards on each fixing block 1, insert the connecting seat 2 into the fixing hole 5, and by squeezing the connecting seat 2, force the connecting seat 2 to slide along the fixing hole 5. During this process, through the inclined surface structure on the limiting block 9, two limiting blocks 9 enter the rectangular hole on the connecting seat 2, compressing the first spring 11. When the two limiting blocks 9 move to the fixing groove 8, under the action of the first spring 11, drive the two limiting blocks 9 into the fixing groove 8 to achieve the fixation between the connecting seat 2 and the fixing block 1, reducing the complexity of the operation during expansion. The connection between two ideas is reflected through the elastic ropes 3 on the two connecting seats 2. When it is necessary to disassemble the connecting seat 2 on the fixing block 1, push the sleeve 18 and the sleeve rod 20 to slide through the button 21. During the movement of the sleeve 18, squeeze the second transmission rod 16 on the moving path of the sleeve 18, causing the piston block 15 to move, driving the first transmission rod 10 to move. During the movement of the first transmission rod 10, push the connecting block 13 to move. Under the action of the two first connecting rods 12, drive the two limiting blocks 9 to approach each other, and the connection between the connecting seat 2 and the fixing block 1 can be released. When the mind mapping work of economic management is completed, only need to press the button 21 to make the sleeve rod 20 contract into the sleeve 18. During the contraction of the sleeve rod 20, the gas in the sleeve 18 is pressed into the connecting groove 7 through the connecting pipe 17 by the piston plate 19. Under the action of air pressure, drive the piston block 15 to move, and then drive the first transmission rod 10 to move. Similarly, drive the two limiting blocks 9 on the same connecting seat 2 to approach each other through the connecting block 13 and the first connecting rod 12, thereby releasing the connection between all the connecting seats 2 and the fixing blocks 1, greatly reducing the complexity of the sorting work.
[0092] Embodiment 2:
[0093] Combined with Figures 9 - 12 as shown:
[0094] A mind mapping tool for economic management further includes:
[0095] A storage box 22, which is adapted to the fixing block 1, and a receiving groove is opened at the bottom of the storage box 22 near the sleeve rod 20;
[0096] A frame body 24, which is slidably arranged on the inner side wall of the storage box 22;
[0097] A cover body 23, which is hinged to the top of the frame body 24;
[0098] Two second linkages 26, the two second linkages 26 are symmetrically arranged, and both of the two second linkages 26 are rotatably connected to the frame 24;
[0099] Two connecting rods 27, both of the two connecting rods 27 are slidably arranged on the inner side wall of the accommodating groove, and both of the two connecting rods 27 penetrate through the inner side wall of the storage box 22, and the two connecting rods 27 are rotatably connected to the two second linkages 26 one by one;
[0100] Two arc-shaped plates 29, the two arc-shaped plates 29 are respectively arranged at the ends of the two connecting rods 27, and both of the two arc-shaped plates 29 are adapted to the sleeve rod 20;
[0101] Two second springs 28, the two second springs 28 are respectively arranged on the two arc-shaped plates 29, and both of the two second springs 28 are fixed to the inner side wall of the accommodating groove;
[0102] An iron block 25, the iron block 25 is arranged on the inner bottom wall of the storage box 22.
[0103] When storing the mind mapping tool, take out the connecting seat 2 from the fixing block 1. After taking it out, put the connecting seat 2, the elastic rope 3, etc. into the storage box 22. Through the connecting rod 27 and the second linkage 26, the storage box 22 is divided into two spaces for placing the connecting seats 2 at both ends of the elastic rope 3, avoiding the entanglement of the elastic rope 3 during storage and facilitating the next use. Then close the cover body 23 and stack the multiple fixing blocks 1. When stacking the fixing blocks 1, the magnet 6 on the upper fixing block 1 adsorbs the iron block 25 in the lower storage box 22. Since the frame 24 slides on the inner side wall of the storage box 22, the cover body 23 and the frame 24 descend along the storage box 22. When the frame 24 descends, it pushes the connecting rod 27 to move through the second linkage 26, so that the arc-shaped plate 29 at the end of the connecting rod 27 approaches and abuts against the sleeve rod 20. Through the button 21 at the top of the sleeve rod 20, the fixation between the storage box 22 and the fixing block 1 is realized. During this process, the second spring 28 is stretched. When using it next time, after separating the fixing block 1 above the cover body 23, the adsorption force between the magnet 6 and the iron block 25 disappears. At this time, under the action of the second spring 28, the arc-shaped plate 29 is driven away from the sleeve rod 20 and the button 21. At this time, directly separate the storage box 22 and the fixing block 1, which facilitates the storage, use, etc. of this mind mapping tool.
[0104] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A mind mapping tool for economic management, characterized in that: include: A fixing block (1), the fixing block (1) being of a polygonal structure, the side walls of the fixing block (1) being provided with fixing holes (5), the fixing block (1) being used to fix the identification plate, so as to intuitively reflect the economic management idea; A connecting seat (2), the connecting seat (2) and the fixing hole (5) are adapted to each other, a rectangular hole is provided on one side of the connecting seat (2), a fixing component is provided in the rectangular hole, and is used to fix the connecting seat (2) and the fixing block (1); A polygonal groove (4), wherein the polygonal groove (4) is provided on the top of the fixing block (1), and the number of sides of the polygonal groove (4) is the same as the number of sides of the fixing block (1); A control component is slidably arranged at the bottom of the polygonal groove (4), and the control component includes a first station and a second station, wherein the first station is multiple, and when the control component is in the first station, the fixed state between the connecting seat (2) close to the first station and the fixed block (1) is released, and when the control component is in the second station, the fixed state between all the connecting seats (2) and the fixed blocks (1) is released.
2. A mind mapping tool for economic management according to claim 1, characterized in that: The fixing assembly comprises: Two limiting blocks (9), one side of each of the two limiting blocks (9) is a sloped structure, and the two limiting blocks (9) are slidably arranged in the rectangular hole; Two fixing grooves (8), the two fixing grooves (8) are arranged on both sides of the fixing hole (5), and the fixing grooves (8) and the limiting blocks (9) are adapted to each other; A first spring (11), wherein two ends of the first spring (11) are respectively fixed to two limiting blocks (9); A transmission component is used to drive two limiting blocks (9) to move closer to each other, and the transmission component is slidably arranged at the bottom of the rectangular hole.
3. A mind mapping tool for economic management according to claim 2, characterized in that: The transmission assembly comprises: Two first connecting rods (12), the two first connecting rods (12) are rotatably connected to the two limiting blocks (9) respectively; A slide groove (14), wherein the slide groove (14) is provided at the bottom of the rectangular hole; A connecting block (13) is slidably arranged in a sliding groove (14), and the two first connecting rods (12) are both rotatably connected to the connecting block (13).
4. A mind mapping tool for economic management according to claim 3, characterized in that: Also includes: A connecting groove (7), wherein the connecting groove (7) is provided on one side of the rectangular hole, and a piston block (15) is slidably arranged in the connecting groove (7); A first transmission rod (10), wherein the first transmission rod (10) is fixed to one side of the piston block (15), and the first transmission rod (10) and the connecting block (13) are in conflict with each other; A second transmission rod (16), wherein the second transmission rod (16) is arranged on the other side of the piston block (15), and the second transmission rod (16) passes through the inner wall of the polygonal groove (4).
5. A mind mapping tool for economic management according to claim 4, characterized in that: The control component comprises: A sleeve (18), wherein the sleeve (18) is slidably disposed at the bottom of the polygonal groove (4); A piston plate (19), wherein the piston plate (19) is slidably disposed in the sleeve (18); A sleeve rod (20), wherein the sleeve rod (20) is arranged on the piston plate (19), and a button (21) is arranged on the top of the sleeve rod (20); A connecting pipe (17), wherein the connecting pipe (17) is used to connect the sleeve (18) and the connecting groove (7).
6. A mind mapping tool for economic management according to claim 1, characterized in that: The bottom of the fixing block (1) is provided with a plurality of mounting grooves which are distributed at equal distances, and magnets (6) are fixed in each of the mounting grooves so that the fixing block (1) can be fixed on the magnetic blackboard.
7. A mind mapping tool for economic management according to claim 1, characterized in that: There are two connecting seats (2), and the same elastic rope (3) is fixed to the opposite side walls of the two connecting seats (2).
8. The mind mapping tool for economic management according to claim 5, characterized in that: Also includes: A storage box (22), the storage box (22) and the fixed block (1) are adapted to each other, and a receiving groove is provided at the bottom of the storage box (22) near the sleeve rod (20); A frame (24), wherein the frame (24) is slidably disposed on the inner wall of the storage box (22); A cover body (23), wherein the cover body (23) is hinged on the top of the frame body (24); Two second connecting rods (26), the two second connecting rods (26) are symmetrically arranged, and the two second connecting rods (26) are both rotatably connected to the frame (24); Two connecting rods (27), both of which are slidably arranged on the inner side wall of the receiving groove, and both of which penetrate the inner side wall of the storage box (22), and the two connecting rods (27) and the two second connecting rods (26) are rotationally connected one to one; Two arc-shaped plates (29), the two arc-shaped plates (29) are respectively arranged at the ends of the two connecting rods (27), and the two arc-shaped plates (29) are both adapted to the sleeve rod (20); Two second springs (28), the two second springs (28) are respectively arranged on two arc-shaped plates (29), and the two second springs (28) are both fixed to the inner side wall of the accommodating groove; An iron block (25), wherein the iron block (25) is arranged on the inner wall of the bottom of the storage box (22).
Citation Information
Patent Citations
A mind mapping tool for economic management
CN108735046B