Portable water rescue single board

Abstract

The invention relates to the technical field of water rescue, and discloses a portable water rescue veneer which comprises a rescue plate and photovoltaic panels, the photovoltaic panels are symmetrically and fixedly connected to the upper surface of the rescue plate, a driving assembly is arranged on the outer side of the rescue plate, and a protection assembly is arranged at the top of the rescue plate. A reinforcing assembly is arranged in the protection assembly, the driving assembly comprises a driving motor fixedly connected to the side wall of the rescue plate, frames are symmetrically and fixedly connected to the inner wall of the rescue plate, driving shells are fixedly connected to the inner walls of the frames, and a leakage plate is driven by rotating a pivot to lift a patient away from the rescue plate; due to the fact that the rescue plate encounters water flow and waves in the moving process, water is easily accumulated on the upper surface of the rescue plate, the problem that the body temperature of a patient is rapidly decreased due to the fact that the patient is soaked in water is solved, the life safety of the patient is guaranteed, and the protection performance of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water rescue, in particular to a portable water rescue single board. Background Art

[0002] With the popularity of water sports, the growth of tourism and the busy water traffic, the incidence of water safety accidents has also increased. Drowning incidents, ship capsizing, sea storms and other critical moments all require timely and effective rescue measures. Therefore, water rescue is a rescue activity carried out on the water, aimed at saving people, ships, aircraft, etc. in distress, and protecting the environment from further damage. It includes rapid dispatch, rescue formations, water lifesaving, transportation of disaster victims, and transportation of supplies.

[0003] A Chinese invention patent with publication number CN108945345B discloses a water rescue device, comprising: a quadcopter, a stepper motor fixedly connected to the lower end of the quadcopter and with a horizontal output shaft, a U-shaped bracket fixedly connected to the output shaft of the motor, a nylon net connected to the U-shaped bracket, and two rear drive water wheels fixedly connected to the outer sides of the two end positions of the U-shaped bracket and with a driving direction perpendicular to the U-shaped bracket; a camera is installed at the lower end of the quadcopter or the middle position of the U-shaped bracket; mounting brackets are formed on both sides of the front of the U-shaped bracket; and a scooping board assembly is rotatably connected to the mounting bracket. The present invention uses a quadcopter to carry a U-shaped bracket with a nylon net installed to quickly reach the rescue site by flying, and has strong maneuverability; especially when the drowning person has sunk under the water, the rescue equipment can dive underwater to scoop up the drowning person and transport him to the shore in time, which is conducive to the rescue personnel who arrive later to carry out more timely rescue.

[0004] In addition, if the rescue device encounters bad weather during the movement at sea, water will accumulate on the rescue board. When a comatose patient is immersed in water for a long time, the patient's body heat will be lost quickly. In addition, the rescue board is easily affected by factors such as water flow and waves during the movement, which reduces the stability between the patient and the rescue board. When the rescue board shakes too violently, the patient may slip and fall back into the water, increasing the risk of rescue. Therefore, the water rescue equipment disclosed in Chinese invention patent CN108945345B cannot effectively protect patients. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides a portable water rescue board, which has the advantages of preventing patients from being immersed in water and reinforcing patients, thereby solving the problems of patients' body temperature dissipating too quickly and patients slipping after being impacted by water flow.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a portable water rescue board, comprising a rescue board and a photovoltaic panel, wherein the photovoltaic panel is symmetrically fixedly connected to the upper surface of the rescue board, a driving component is arranged on the outer side of the rescue board, a protective component is arranged on the top of the rescue board, and a reinforcement component is arranged inside the protective component.

[0009] Preferably, the driving assembly includes a driving motor fixedly connected to the side wall of the rescue board, a frame is symmetrically fixedly connected to the inner wall of the rescue board, a driving shell is fixedly connected to the inner wall of the frame, a driving bracket is fixedly connected to the inner wall of the driving shell, one end of the driving bracket located on the inner side of the driving shell is rotatably connected to a driving paddle, a universal rod is rotatably connected to the inner wall of the frame, a fixing plate 1 is symmetrically fixedly connected to the outer wall of the rescue board, an end of the fixing plate 1 away from the rescue board is fixedly connected to an airbag box, and a level detector is symmetrically fixedly connected to the outer wall of the rescue board.

[0010] Preferably, the driving propeller and the universal rod are electrically connected to the driving motor.

[0011] Preferably, the level detector and the airbag box are both electrically connected to the drive motor.

[0012] Preferably, the protection component includes two groups of rotating hubs arranged in a linear array and symmetrically fixedly connected, the upper surface of the rotating hub is fixedly connected to a fixing rod 1, the outer wall of the fixing rod 1 is fixedly connected to a fixing plate 2, the upper surface of the rescue plate is symmetrically provided with a slide groove 1, the internal limiting sliding connection of the slide groove 1 is connected to a support rod 1, the top of the support rod 1 is fixedly connected to a fixing rod 2, the outer wall of the fixing rod 2 is sleeved with a torsion spring, the upper surface of the rescue plate is symmetrically fixedly connected to a telescopic rod, the outer wall of the telescopic rod is sleeved with a spring 1, the top of the telescopic rod is fixedly connected to a leak plate, the lower surface of the leak plate is symmetrically rotatably connected with two groups of hinged plates, the side of the hinged plate away from the leak plate is fixedly connected to the support rod 2, and the upper surface of the leak plate is fixedly connected to a baffle.

[0013] Preferably, four rotating hubs are provided in each group, and there is an electrical connection between the rotating hubs and the driving motor. The two ends of the fixing rod 2 are respectively fixedly connected to the fixing plate 2 and the supporting rod 1, and the two ends of the spring 1 are respectively fixedly connected to the rescue plate and the leakage plate.

[0014] Preferably, one end of the support rod 2 away from the hinge plate slides within the slide groove 1, and the bottom end of the support rod 2 is on the same horizontal plane as the bottom end of the support rod 1, and each group of hinge plates is provided with four.

[0015] Preferably, the reinforcement component includes a slide groove 2 symmetrically opened on the upper surface of the rescue plate, a fixing rod 3 is fixedly connected to the upper surface of the rescue plate, a magnetic block 1 is fixedly connected to the top of the fixing rod 3, a clamping plate is slidably connected inside the slide groove 2, a magnetic plate is fixedly connected to the top outer wall of the clamping plate, a fixing plate 3 is fixedly connected to the outer wall of the clamping plate near the spring 1 end, and a magnetic block 2 is fixedly connected to the end of the fixing plate 3 away from the clamping plate.

[0016] Preferably, the fixing rod three is slidably connected to the rescue board.

[0017] Preferably, the magnetism of the second magnetic block is opposite to that of the first magnetic block, and the magnetism of attraction between the second magnetic block and the first magnetic block is greater than the magnetism of repulsion between the two magnetic plates.

[0018] Beneficial Effects

[0019] Compared with the prior art, the present invention provides a portable water rescue board, which has the following beneficial effects:

[0020] 1. The patient is lifted off the rescue board by driving the leak plate through the rotating hub. Since the rescue board will encounter water flow and waves during the movement, water will easily accumulate on the upper surface of the rescue board, thereby avoiding the problem of rapid drop in body temperature caused by the patient being immersed in water, ensuring the patient's life safety and improving the protection performance of the equipment.

[0021] 2. The patient is wrapped and fixed by a rotating hub and a fixing rod, and the patient's legs are clamped and fixed by a clamping plate, which prevents the rescue board from being impacted by water flow during movement, prevents the rescue board from shaking too violently and causing the patient to slip, and improves the stability between the patient and the rescue board.

[0022] 3. The angle and internal air pressure of the airbag are controlled by the level detector, so that the airbag resists the tilt direction of the rescue board, avoiding the rescue board from tilting too much and reducing the impact force of the water flow on the rescue board. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a portable water rescue single board proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the partial structure of a driving component in a portable water rescue single board proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of a photovoltaic panel and an airbag box in a portable water rescue single board proposed by the present invention;

[0026] Figure 4This is a schematic diagram of the structure of a drive housing and a universal rod in a portable water rescue single board proposed by the present invention;

[0027] Figure 5 A schematic diagram of the partial structure of a protective component in a portable water rescue single board proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of a rotating hub and a photovoltaic panel in a portable water rescue single board proposed by the present invention;

[0029] Figure 7 A portable water rescue board proposed by the present invention Figure 6 A schematic diagram of the structure enlargement in the middle;

[0030] Figure 8 This is a structural schematic diagram of a slideway 1 and a support rod 2 in a portable water rescue single board proposed by the present invention;

[0031] Fig. 9 This is a schematic diagram of the structure of a leaking plate and a supporting rod in a portable water rescue single board proposed by the present invention;

[0032] Fig.10 This is a schematic diagram of the structure of a reinforcement component in a portable water rescue single board proposed by the present invention;

[0033] Fig.11 This is a schematic diagram of the structure of the drain plate and the magnetic block in a portable water rescue single board proposed by the present invention;

[0034] Fig.12 This is a schematic structural diagram of a clamping plate and a magnetic block in a portable water rescue single board proposed by the present invention.

[0035] In the figure: 1. rescue board; 2. photovoltaic panel; 3. drive assembly; 31. drive motor; 32. frame; 33. drive shell; 34. drive bracket; 35. drive paddle; 36. universal rod; 37. fixed plate one; 38. airbag box; 39. level detector; 4. protection assembly; 41. rotating hub; 42. fixed rod one; 43. fixed plate two; 44. slide slot one; 45. support rod one; 46. fixed rod two; 47. torsion spring; 48. telescopic rod; 49. spring one; 410. leak plate; 411. hinged plate; 412. support rod two; 413. baffle; 5. reinforcement assembly; 51. slide slot two; 52. fixed rod three; 53. magnetic block one; 54. clamping plate; 55. magnetic plate; 56. fixed plate three; 57. magnetic block two. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example:

[0038] Refer to the attached Figures 1 to 12 As shown, a portable water rescue board includes a rescue board 1 and a photovoltaic panel 2. The photovoltaic panel 2 is symmetrically fixedly connected to the upper surface of the rescue board 1. A driving component 3 is arranged on the outer side of the rescue board 1. A protective component 4 is arranged on the top of the rescue board 1. A reinforcement component 5 is arranged inside the protective component 4.

[0039] Furthermore, the driving assembly 3 includes a driving motor 31 fixedly connected to the side wall of the rescue board 1, a frame 32 is symmetrically fixedly connected to the inner wall of the rescue board 1, a driving shell 33 is fixedly connected to the inner wall of the frame 32, a driving bracket 34 is fixedly connected to the inner wall of the driving shell 33, one end of the driving bracket 34 located on the inner side of the driving shell 33 is rotatably connected to a driving paddle 35, a universal rod 36 is rotatably connected to the inner wall of the frame 32, and both the driving paddle 35 and the universal rod 36 are electrically connected to the driving motor 31. A fixing plate 37 is symmetrically fixedly connected to the outer wall of the rescue board 1, and an airbag box 38 is fixedly connected to the end of the fixing plate 37 away from the rescue board 1. A level detector 39 is symmetrically fixedly connected to the outer wall of the rescue board 1. The level detector 39 and the airbag box 38 are electrically connected to the driving motor 31. The inclination degree of the rescue board 1 is detected by the level detector 39 to avoid the rescue board 1 from tipping over. The buoyancy of the airbag after the airbag box 38 is triggered increases the stability of the rescue board 1 during movement.

[0040] It should be noted that the angle and air pressure of the airbag box 38 can be adjusted according to the detection result of the level detector 39 , and a control device is installed inside the rescue board 1 .

[0041] Furthermore, the protection component 4 includes two groups of rotating hubs 41 arranged in a linear array and symmetrically fixedly connected, each group of rotating hubs 41 is provided with four, there is an electrical connection between the rotating hubs 41 and the driving motor 31, the upper surface of the rotating hub 41 is fixedly connected with a fixing rod 1 42, the outer wall of the fixing rod 1 42 is fixedly connected with a fixing plate 2 43, the upper surface of the rescue plate 1 is symmetrically provided with a slide groove 1 44, the internal limit sliding connection of the slide groove 1 44 is connected with a support rod 1 45, the top of the support rod 1 45 is fixedly connected with a fixing rod 2 46, the two ends of the fixing rod 2 46 are respectively fixedly connected to the fixing plate 2 43 and the support rod 1 45, the outer wall of the fixing rod 2 46 is sleeved with a torsion spring 47, the upper surface of the rescue plate 1 is symmetrically fixedly connected with a telescopic rod 48, the outer wall of the telescopic rod 48 is sleeved with a spring 1 49, and the telescopic rod 4 The top of 8 is fixedly connected with a leak plate 410, and the two ends of a spring 49 are respectively fixedly connected to the rescue board 1 and the leak plate 410, and the lower surface of the leak plate 410 is symmetrically rotatably connected with two groups of hinged plates 411, and each group of hinged plates 411 is provided with four, and the side of the hinged plate 411 away from the leak plate 410 is fixedly connected with a support rod 2 412, and the end of the support rod 2 412 away from the hinged plate 411 is limitedly slid inside the slide groove 1 44, and the bottom end of the support rod 2 412 and the bottom end of the support rod 1 45 are on the same horizontal plane, and the upper surface of the leak plate 410 is fixedly connected with a baffle 413, which drives the leak plate 410 to lift the patient a short distance away from the rescue board 1 during the process of clamping the patient by the fixed rod 1 42 and the rotating hub 41, thereby avoiding the patient from being immersed in water for a long time, and also avoiding the patient from being impacted by water flow and waterfall.

[0042] It should be noted that there is an electrical connection between the rotating hub 41 and the control device installed inside the rescue board 1 .

[0043] Furthermore, the reinforcement component 5 includes a slide groove 2 51 symmetrically opened on the upper surface of the rescue plate 1, a fixing rod 3 52 is fixedly connected to the upper surface of the rescue plate 1, the fixing rod 3 52 is slidably connected to the rescue plate 1, the top of the fixing rod 3 52 is fixedly connected to a magnetic block 1 53, the inside of the slide groove 2 51 is slidably connected to a clamping plate 54, a magnetic plate 55 is fixedly connected to the outer wall of the top end of the clamping plate 54, a fixing plate 3 56 is fixedly connected to the outer wall of the clamping plate 54 close to the spring 1 49, and a magnetic block 2 57 is fixedly connected to the end of the fixing plate 3 56 away from the clamping plate 54, the magnetism of the magnetic block 2 57 is opposite to that of the magnetic block 1 53, and the magnetism of the magnetic block 2 57 and the magnetic block 1 53 is greater than the magnetism of the repulsive between the two magnetic plates 55, the patient's legs are clamped and fixed by the clamping plate 54, and the stability between the patient and the leaking plate 410 is increased.

[0044] The following is the working process and principle of the above embodiment:

[0045] The initial state is as follows: the fixing rod 2 46 is in a non-rotated state, the support rod 1 45 does not conflict with the support rod 2 412, the spring 1 49 is in an unstretched state, the clamping plate 54 is in an unaggregated state, and the telescopic rod 48 is in an unstretched state.

[0046] The working steps are as follows:

[0047] The rescue board 1 first determines the specific position of the patient who falls into the water through the human body detection device installed inside it, and then drives the rescue board 1 to dive directly under the patient's body through the driving paddle 35, and then moves upward so that the patient lies on the upper surface of the leaking plate 410. Then, the driving paddle 35 drives the patient to move upward through the rescue board 1 so that the patient is out of the water. Then, the rotating hub 41 drives the fixed rod 42 to rotate toward one side of the patient under the action of the control device installed inside the rescue board 1, so that the rotating hub 41 and the fixed rod 42 installed on the top rotate synchronously, and then the rotating hub 41 and the fixed rod 42 wrap the patient's body;

[0048] During the rotation of the fixing rod 42, the fixing rod 42 drives the fixing plate 2 43 to rotate synchronously toward the side close to the patient, so that the fixing rod 42 drives the bottom end of the support rod 45 to slide inside the slide groove 1 44 through the fixing rod 2 46, so that the support rod 1 45 contacts the bottom end of the support rod 2 412, so that the bottom end of the support rod 2 412 slides inside the slide groove 1 44 toward the side close to the patient, so that the support rod 2 412 drives the hinged plate 411 to rotate inside the leaking plate 410, and at the same time, the hinged plate 411 drives the leaking plate 410 to start moving toward the top of the rescue board 1, so that the leaking plate 410 drives the telescopic end of the telescopic rod 48 to start extending in the same direction, thereby The rescue board 1 drives the telescopic rod 48 to start stretching, and the leak plate 410 drives the baffle 413 to move synchronously, and then the leak plate 410 drives the patient to move upward synchronously. When the leak plate 410 moves upward, the water on the upper surface of the leak plate 410 slides down through the leak holes set in the leak plate 410, and the leak plate 410 is driven by the rotating hub 41 to lift the patient off the rescue board 1. Since the rescue board 1 will encounter water flow and waves during the movement, water will easily accumulate on the upper surface of the rescue board 1, thereby avoiding the problem of rapid drop in body temperature caused by the patient being immersed in water, ensuring the patient's life safety and improving the protection performance of the equipment.

[0049] At the same time, in the process of the leak plate 410 moving upward, the leak plate 410 slides upward on the outer wall of the fixed rod three 52, so that the leak plate 410 drives the clamping plate 54 to move synchronously, and the clamping plate 54 drives the fixed plate three 56 and the magnetic plate 55 to move synchronously. Since the magnetic properties of the two magnetic plates 55 are the same, the two clamping plates 54 are in a separated state, and at the same time, the fixed plate three 56 drives the magnetic block two 57 to move upward synchronously. When the fixed plate three 56 drives the magnetic block two 57 to move to the same horizontal plane as the magnetic block one 53, since the magnetic properties of the magnetic block two 57 and the magnetic block one 53 are opposite, the magnetic block one 53 will be magnetically attracted. Block 2 57 causes magnetic block 2 57 to slide toward the side close to magnetic block 1 53, so that magnetic block 2 57 drives fixing plate 3 56 to slide toward the side close to the patient's legs, so that fixing plate 3 56 drives clamping plate 54 to move synchronously, thereby causing the two clamping plates 54 to move toward each other and clamp and fix the patient's legs. The patient is wrapped and fixed by the rotating hub 41 and fixing rod 1 42, and the patient's legs are clamped and fixed by the clamping plates 54, thereby preventing the rescue board 1 from being impacted by water flow during movement, preventing the rescue board 1 from shaking too violently and causing the patient to slip, and improving the stability between the patient and the rescue board 1.

[0050] At the same time, when the rescue board 1 tilts, the level detector 39 detects the tilt angle of the rescue board 1. When the tilt angle is large, the air pressure of the airbag after the airbag box 38 is triggered increases, thereby increasing the buoyancy of the seawater on the airbag. The airbag installed in the airbag box 38 resists the tilt direction of the rescue board 1, thereby preventing the rescue board 1 from tilting too much.

[0051] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable water rescue board, comprising a rescue board (1) and a photovoltaic panel (2), wherein the photovoltaic panel (2) is symmetrically fixedly connected to the upper surface of the rescue board (1), characterized in that: A driving assembly (3) is arranged on the outer side of the rescue board (1), a protection assembly (4) is arranged on the top of the rescue board (1), and a reinforcement assembly (5) is arranged inside the protection assembly (4).

2. A portable water rescue board according to claim 1, characterized in that: The driving assembly (3) comprises a driving motor (31) fixedly connected to the side wall of the rescue board (1); a frame (32) is symmetrically fixedly connected to the inner wall of the rescue board (1); a driving shell (33) is fixedly connected to the inner wall of the frame (32); a driving bracket (34) is fixedly connected to the inner wall of the driving shell (33); one end of the driving bracket (34) located inside the driving shell (33) is rotatably connected to a driving paddle (35); a universal rod (36) is rotatably connected to the inner wall of the frame (32); a fixing plate 1 (37) is symmetrically fixedly connected to the outer wall of the rescue board (1); an airbag box (38) is fixedly connected to the end of the fixing plate 1 (37) away from the rescue board (1); and a level detector (39) is symmetrically fixedly connected to the outer wall of the rescue board (1).

3. A portable water rescue board according to claim 2, characterized in that: The driving paddle (35) and the universal rod (36) are both electrically connected to the driving motor (31).

4. A portable water rescue board according to claim 2, characterized in that: The level detector (39) and the airbag box (38) are both electrically connected to the drive motor (31).

5. The portable water rescue board according to claim 2, characterized in that: The protection assembly (4) comprises two groups of rotating hubs (41) arranged in a linear array and symmetrically fixedly connected, the upper surface of the rotating hub (41) is fixedly connected to a fixing rod (42), the outer wall of the fixing rod (42) is fixedly connected to a fixing plate (43), the upper surface of the rescue plate (1) is symmetrically provided with a sliding groove (44), the inner limit sliding connection of the sliding groove (44) is connected to a support rod (45), the top of the support rod (45) is fixedly connected to a fixing rod (46), and the fixing rod (46) is fixedly connected to the outer wall of the fixing rod (42). A torsion spring (47) is sleeved on the outer wall, a telescopic rod (48) is symmetrically fixedly connected to the upper surface of the rescue plate (1), a spring 1 (49) is sleeved on the outer wall of the telescopic rod (48), a leak plate (410) is fixedly connected to the top of the telescopic rod (48), two groups of hinged plates (411) are symmetrically rotatably connected to the lower surface of the leak plate (410), a support rod 2 (412) is fixedly connected to the side of the hinged plate (411) away from the leak plate (410), and a baffle (413) is fixedly connected to the upper surface of the leak plate (410).

6. A portable water rescue board according to claim 5, characterized in that: Each group of the rotating hubs (41) is provided with four, and there is an electrical connection between the rotating hubs (41) and the driving motor (31), the two ends of the second fixing rod (46) are respectively fixedly connected to the second fixing plate (43) and the first supporting rod (45), and the two ends of the first spring (49) are respectively fixedly connected to the rescue plate (1) and the leaking plate (410).

7. The portable water rescue board according to claim 5, characterized in that: One end of the second support rod (412) away from the hinge plate (411) is limitedly slid inside the slide groove (44), and the bottom end of the second support rod (412) and the bottom end of the first support rod (45) are on the same horizontal plane, and each group of the hinge plates (411) is provided with four.

8. The portable water rescue board according to claim 5, characterized in that: The reinforcement component (5) comprises a slide groove 2 (51) symmetrically opened on the upper surface of the rescue plate (1); a fixing rod 3 (52) is fixedly connected to the upper surface of the rescue plate (1); a magnetic block 1 (53) is fixedly connected to the top of the fixing rod 3 (52); a clamping plate (54) is slidably connected inside the slide groove 2 (51); a magnetic plate (55) is fixedly connected to the outer wall of the top end of the clamping plate (54); a fixing plate 3 (56) is fixedly connected to the outer wall of the clamping plate (54) at one end close to the spring 1 (49); and a magnetic block 2 (57) is fixedly connected to the end of the fixing plate 3 (56) away from the clamping plate (54).

9. A portable water rescue board according to claim 8, characterized in that: The fixing rod 3 (52) is slidably connected to the rescue board (1).

10. The portable water rescue board according to claim 8, characterized in that: The magnetism of the second magnetic block (57) is opposite to that of the first magnetic block (53), and the magnetism of attraction between the second magnetic block (57) and the first magnetic block (53) is greater than the magnetism of repulsion between the two magnetic plates (55).

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