Rat tail suspension device

Abstract

The invention discloses a rat tail suspension device. The rat tail suspension device comprises a rollable section and an anti-climbing section, the rollable section comprises a fixed part and a movable part which are detachably arranged; a through hole is formed in the anti-climbing section; when an experimental mouse is fixed on the mouse tail suspension device, the fixed part and the movable part are arranged in an attached mode, the tail of the experimental mouse extends into a gap formed after the fixed part and the movable part are attached through the through hole, and the fixed part and the movable part are of a curled structure. The free end of the anti-climbing section is located below the lowest point of the rollable section, and the vertical distance between the free end of the anti-climbing section and the lowest point of the rollable section is 1-3 cm. The suspension device is simple in structure, reasonable in design, convenient to operate, firm in fixation in the use process, small in damage to mice, and higher in reliability and accuracy of experimental results.

Description

Technical Field

[0001] The invention belongs to the technical field of experimental simulation devices and relates to a rat tail suspension device. Background Art

[0002] The weightless environment has a profound impact on the astronauts' physiology, not limited to the obvious health problems such as decreased bone density and muscle atrophy, but also includes adaptive changes in the cardiovascular system, such as heart atrophy, decreased standing tolerance caused by blood redistribution, and suppression of the immune system, making astronauts more susceptible to infection. These physiological changes not only threaten the health of astronauts, but also directly affect the efficiency and safety of space missions. Therefore, research on simulated weightless environments on the ground is particularly important.

[0003] The currently used methods such as paper clip suspension and medical tape winding fixation have many limitations in simulating the weightlessness effect. First, these methods often cause physical damage to experimental animals (such as experimental mice), especially damage to the tail skin, which not only increases the pain of experimental animals, but also may cause infection, resulting in deviations in experimental data due to non-experimental factors, reducing the scientificity and reliability of the research. Secondly, these fixation methods are complicated to operate, require high skills and time costs, and are not conducive to large-scale and long-term experiments. In addition, due to the single force point, it is difficult to fully simulate the comprehensive impact of the microgravity environment in space on various parts of the organism, which limits the depth and breadth of the research. Furthermore, these methods are prone to induce stress responses in experimental animals, such as anxiety and fear. These emotional states will interfere with the experimental results, making it difficult for researchers to accurately assess the specific effects of the weightless environment on the organism. Stress may also aggravate the physiological changes of experimental animals and further distort the experimental data. Finally, from the perspective of stability, the existing single-point fixation method is prone to loosening or failure in long-term experiments, resulting in unstable experimental conditions and affecting the continuity and accuracy of the data. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a mouse tail suspension device, thereby solving the technical problem of poor reliability of experimental results caused by the fixation method of experimental mice in weightlessness simulation experiments in the prior art.

[0005] The present invention is achieved through the following technical solutions:

[0006] A rat tail suspension device comprises a curlable section and an anti-climbing section;

[0007] The rollable section includes a detachable fixed portion and a movable portion; the anti-climbing section is provided with a through hole;

[0008] When in use, the fixed part and the movable part are arranged in close proximity, the tail of the experimental mouse passes through the through hole and is clamped by the fixed part and the movable part that are arranged in close proximity; the fixed part and the movable part are in a curled structure, the free end of the anti-climbing section is located below the lowest point of the curlable section, and the vertical distance between the free end of the anti-climbing section and the lowest point of the curlable section is 1 to 3 cm.

[0009] Preferably, one end of the fixed part is connected to the anti-climbing section, and the other end is hinged to the movable part.

[0010] Preferably, a magnetic component is provided inside the fixed part, and a magnetically attractable component is provided inside the movable part. When the fixed part and the movable part are close to each other, the magnetic component and the magnetically attractable component are attracted and fixed to each other by magnetic force.

[0011] Preferably, the magnetic component is arranged along the length direction of the fixed part, and the magnetic attraction component is arranged along the length direction of the movable part.

[0012] Preferably, a shape memory component is provided inside the fixing portion, and the shape memory component is extended along the length direction of the fixing portion; the shape memory component forms a curling structure when subjected to external stress.

[0013] Preferably, the shape memory component is a memory metal spring.

[0014] Preferably, a hanging member is provided on the outer side of the rollable section, and when the hanging member is in a vertically upward state, the anti-climbing section is arranged vertically downward.

[0015] Preferably, the exterior of the fixed portion and the movable portion are both covered with a silicone layer, and the exterior of the silicone layer is provided with a first anti-slip protrusion.

[0016] Preferably, a fixing groove is provided on one side opposite to the fixing portion and the movable portion; and the fixing groove is coaxially arranged with the through hole.

[0017] Preferably, a second anti-slip protrusion is provided inside the fixing groove.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] The invention discloses a mouse tail suspension device, which clamps and fixes the tail of an experimental mouse through a fixed part and a movable part. When the fixed part and the movable part are attached, the tail of the experimental mouse is located in a gap formed after the attachment. The tail of the experimental mouse is fixed by clamping the fixed part and the movable part, thereby avoiding the damage to the mouse caused by the fixing method in the prior art. At the same time, for the anti-climbing section, when the curlable section is in a curled state, the free end of the anti-climbing section is located below the lowest point of the curlable section, and the vertical distance between the free end of the anti-climbing section and the lowest point of the curlable section is 1 to 3 cm, thereby effectively avoiding the climbing of the experimental mouse during the experiment and the influence on the experimental process, and also avoiding the structural instability caused by excessive length. In addition, the mouse tail is fixed by using the curlable structure, thereby enhancing the force bearing area of ​​the mouse tail in the vertical direction, thereby making the fixation of the mouse more stable. At the same time, the curling structure also ensures that the connection between the fixed part and the movable part is more stable, thereby making the fixation of the device more stable, thereby helping to reduce the experimental error caused by unstable fixation and improving the accuracy and reliability of the experiment. The suspension device of the present invention has a simple structure, reasonable design, and convenient operation. During use, it is firmly fixed and causes little harm to mice. The reliability and accuracy of the experimental results are higher.

[0020] Furthermore, one end of the fixed part is connected to the anti-climbing section, and the other end is hinged to the movable part. First, the fixed part and the movable part are connected by a hinge so that the two can rotate relative to each other within a certain range. This design enhances the flexibility of the device, so that the device can better adapt to the tails of experimental mice of different sizes and shapes, thereby improving the adaptability and practicality of the device. Secondly, the hinged design makes the fixation between the fixed part and the movable part more convenient. When the tail of the experimental mouse needs to be fixed, the movable part only needs to be brought close to and fitted with the fixed part to achieve a firm fixation of the tail of the experimental mouse. This design simplifies the operating steps and improves the experimental efficiency. In addition, through the hinged design, the fixed part and the movable part can fit the tail of the experimental mouse more closely, thereby reducing the pressure or discomfort on the experimental mouse caused by loose or uncomfortable device. This design helps to optimize the suspension experience of the experimental mouse and improve the ethics and animal welfare of the experiment.

[0021] Furthermore, a magnetic component is provided inside the fixed part, and a magnetically attractive component is provided inside the movable part. When the fixed part and the movable part are close to each other, the magnetic component and the magnetically attractive component are attracted and fixed to each other by magnetic force. Firstly, the fixed part and the movable part can be quickly and firmly fixed together by magnetic attraction, without the need for additional fastening devices or tools. This design greatly simplifies the operating steps and improves the work efficiency of the experimenter. Secondly, the magnetic fixing method avoids the mechanical compression or friction that may exist in the traditional fixing method, thereby reducing the damage to the tail of the experimental mouse. This design ensures the accuracy of the experimental results. In addition, the magnetic fixation also has high strength and stability and can withstand a certain amount of tension and pressure. Therefore, this design enables the device to maintain a stable suspension state during the experiment, avoiding experimental errors caused by shaking or instability of the device.

[0022] Furthermore, the magnetic component is arranged along the length direction of the fixed part, and the magnetic attraction component is arranged along the length direction of the movable part. First, when the magnetic component and the magnetic attraction component are arranged along the length direction of their respective components, the magnetic attraction between them will be more evenly distributed. This design helps to ensure that the fixed part and the movable part can maintain a uniform fastening force when they are fitted, thereby improving the stability and reliability of the fixation; secondly, the magnetic force setting in the length direction allows the fixed part and the movable part to have a certain adaptability when fitting. Even if the size or shape of the tail of the experimental mouse changes slightly, the device can adapt to these changes through the uniform distribution of magnetic force to ensure a stable fixing effect. This design improves the adaptability and flexibility of the device; in addition, the uniform magnetic force distribution can reduce the local pressure on the tail of the experimental mouse, thereby reducing discomfort; and the magnetic component is arranged along the length direction to help disperse the stress effect of the magnetic force on the material, reducing the wear or damage of the material caused by excessive local stress. This design helps to improve the durability and service life of the device; at the same time, the magnetic force setting in the length direction makes the fixed part and the movable part fit more smoothly without the need for additional alignment or adjustment steps. This design simplifies the operation process and improves experimental efficiency.

[0023] Furthermore, a shape memory component is provided inside the fixing portion, and the shape memory component is extended along the length direction of the fixing portion. The shape memory component maintains a curled state when no external force acts on it. When the shape memory component is unfolded, it is a long strip structure, and an arch structure is formed to support the long side of the shape memory component without bending. When the shape memory component is subjected to external force, the shape memory component returns to its curled state, and the arch structure becomes a planar structure, thereby forming a curled structure. This component makes the device more convenient to use, and only slight stress needs to be applied to make the curlable section present a curled structure for use. In addition, the curled structure is realized by using the shape memory component, so that the structure is more stable during use. In the absence of strong external force, the shape memory component can always maintain the curled structure, thereby improving the stability of the experiment.

[0024] Furthermore, the shape memory component is a memory metal spring, which effectively controls the manufacturing cost of the equipment.

[0025] Furthermore, a hanging piece is provided on the outer side of the rollable section. When the hanging piece is in a vertically upward state, the anti-climbing section is arranged vertically downward. Firstly, the vertically upward design of the hanging piece makes the whole device more stable when suspended and is not prone to shaking or tilting, thereby ensuring the stability and safety of the suspended object.

[0026] Furthermore, the outside of the fixed part and the movable part are both covered with a silicone layer, and the outside of the silicone layer is provided with a first anti-slip protrusion. Firstly, the silicone layer has good elasticity and friction, which can effectively increase the contact area and friction between the clamped object and the device, making the clamping more stable and not easy to slip. The setting of the first anti-slip protrusion further enhances the anti-slip effect and can significantly improve the stability of clamping; secondly, the silicone layer is soft and elastic, which reduces the discomfort caused by long-term clamping.

[0027] Furthermore, fixing grooves are provided on the opposite sides of the fixed portion and the movable portion; the fixing groove is coaxially arranged with the through hole. Firstly, the coaxial arrangement of the fixing groove and the through hole enables the rat tail to accurately and stably pass through the through hole and embed into the fixing groove, thereby forming a firm connection, improving the stability of the connection, and reducing the risks caused by loose connection or misalignment; secondly, the coaxial arrangement of the fixing groove and the through hole enables the connector to be more easily aligned and inserted, thereby simplifying the connection process and improving assembly efficiency.

[0028] Furthermore, a second anti-slip protrusion is provided inside the fixing groove, which effectively enhances the stability of the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A diagram showing the use status of a rat tail suspension device in the present invention;

[0031] Figure 2 It is a schematic diagram of the unfolded structure of a rat tail suspension device in the present invention;

[0032] Figure 3 It is a schematic diagram of the structure in which the movable part and the fixed part are disassembled in one embodiment of the present invention;

[0033] Figure 4 It is a schematic diagram of the arrangement of the shape memory component (4) inside the fixing part of the present invention.

[0034] Among them: 1. rollable section, 11. fixed part, 12. movable part, 2. anti-climbing section, 21. through hole, 3. hanging part, 4. shape memory component. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0042] like Figures 1 to 3 As shown, the present invention discloses a mouse tail suspension device, which includes a curlable section 1 and an anti-climbing section 2; the curlable section 1 includes a detachable fixed portion 11 and a movable portion 12; the anti-climbing section 2 is provided with a through hole 21; when an experimental mouse is fixed on the mouse tail suspension device, the fixed portion 11 and the movable portion 12 are fitted together, and the tail of the experimental mouse extends through the through hole 21 to the inside of a gap formed after the fixed portion 11 and the movable portion 12 are fitted together, and is clamped by the fixed portion 11 and the movable portion 12 that are fitted together; the fixed portion 11 and the movable portion 12 are in a curled structure, the free end of the anti-climbing section 2 is located below the lowest point of the curlable section 1, and the vertical distance between the free end of the anti-climbing section 2 and the lowest point of the curlable section 1 is 1 to 3 cm.

[0043] like Figure 2 As shown, in a preferred embodiment, one end of the fixed portion 11 is connected to the anti-climbing section 2, and the other end is hinged to the movable portion 12, so that the device is more compact.

[0044] There are many ways to fix the fixed part 11 and the movable part 12, such as

[0045] The present invention preferably adopts a magnetic attraction method, that is, a magnetic component is provided inside the fixed part 11, and a magnetically attractable component is provided inside the movable part 12. When the fixed part 11 and the movable part 12 are close to each other, the magnetic component and the magnetically attractable component are attracted and fixed to each other by magnetic force. And further preferably, the magnetic component is arranged along the length direction of the fixed part 11, and the magnetically attractable component is arranged along the length direction of the movable part 12.

[0046] In order to ensure the stability and convenience of the magnetic connection, the present invention has carefully planned the arrangement of the magnetic component and the magnetic component. Traditionally, the connection between the fixed part and the movable part mostly adopts mechanical fixing methods, such as screws, snaps, etc. However, these methods often have disadvantages such as cumbersome operation and easy damage to the connecting parts. In order to overcome these shortcomings, the present invention proposes a magnetic connection method, that is, a magnetic component and a magnetically attractable component are respectively arranged inside the fixed part 11 and the movable part 12. When the two are close to each other, the magnetic force between the magnetic component and the magnetically attractable component tightly connects the two together.

[0047] The magnetic component can be designed to be in the shape of a bar, block or ring. In the present invention, the magnetic component and the magnetic attraction component are arranged along the length direction of their respective components. This arrangement can ensure that during the connection process, the magnetic force can be evenly distributed on the entire connection surface, thereby avoiding unstable or damaged connections caused by excessive local force at the connection point. At the same time, the arrangement along the length direction can also increase the magnetic attraction area and improve the firmness and stability of the connection.

[0048] In the material selection of the magnetic components, the present invention preferably uses high-performance permanent magnetic materials, such as neodymium iron boron magnets, etc. These materials have the characteristics of high magnetic energy product, high coercive force and high remanence, and can generate strong magnetic force to ensure the stability of the connection. In order to further optimize the magnetic effect, the magnetic components can be magnetized to improve their magnetic properties and stability. In terms of magnetic pole arrangement, the present invention adopts a reasonable magnetic pole distribution method to ensure that the magnetic force can act evenly and stably on the entire connection surface during the connection process. At the same time, in order to ensure that the fixed part 11 and the movable part 12 can be accurately aligned and connected together, alignment marks or guide structures can be set on both to guide users to operate correctly.

[0049] The magnetic connection method eliminates the cumbersome alignment and tightening steps in the traditional connection method, making the connection between the fixed part 11 and the movable part 12 simpler and faster. The user only needs to bring the fixed part 11 and the movable part 12 close to each other to achieve automatic connection without the need for additional tools or operations. This design not only improves the convenience of connection, but also reduces the difficulty and cost of operation. At the same time, magnetic attraction also fully reduces the damage to the mouse's tail and improves the accuracy and reliability of the experimental results.

[0050] In addition, regarding the formation of the curled shape during use, that is, Figure 4 As shown, the present invention is provided with a shape memory component 4 inside the fixing portion 11, and the shape memory component 4 is extended along the length direction of the fixing portion 11; the shape memory component 4 forms a curling structure when subjected to external stress, that is, the shape memory component 4 can recover from one shape to its original shape or another preset shape when subjected to external stimulation such as stress. The shape memory component 4 is usually made of shape memory alloys such as nickel-titanium alloys, shape memory polymers or other materials with shape memory effect. In the present invention, the shape memory component 4 is extended along the length direction of the fixing portion 11, that is, it can provide a shape memory effect within the entire length range of the fixing portion 11 to ensure that the expected curling structure can be formed when subjected to external stress. Its working principle is that when the fixing portion 11 is subjected to external stress such as bending, stretching, etc., the shape memory component 4 will respond to these stresses and change its shape. In some cases, this shape change may be temporary, that is, when the external force is removed, the component 4 will return to its original shape. In the application of the present invention, the shape memory component 4 forms a stable curling structure when subjected to a specific stress. When the fixed portion 11 is subjected to bending stress in a specific direction, the shape memory component 4 will begin to respond and change in shape. This stress can come from the user's operation, the force of an external device, or any other factor that can cause the fixed portion 11 to bend. As the stress increases, the shape memory component 4 will gradually form a curled structure. The structure of the curled structure increases the force-bearing area of ​​the mouse's tail in the horizontal direction, making the fixation of the mouse more stable. Once the curled structure is formed, the shape memory component 4 will maintain this shape until it is subjected to sufficient reverse stress or temperature stimulation to restore its original shape. This stability ensures that the curled structure can provide a reliable fixing effect during use. In a more preferred embodiment of the present invention, the shape memory component 4 is a memory metal shrapnel.

[0051] For ease of use, a hanging member 3 is provided on the outer side of the rollable section 1. When the hanging member 3 is in a vertically upward state, the anti-climbing section 2 is arranged vertically downward.

[0052] In order to improve the stability of fixation, the outside of the fixed part 11 and the movable part 12 are both covered with a silicone layer, and the outside of the silicone layer is provided with a first anti-slip protrusion. In addition, more preferably, the fixed part 11 and the movable part 12 are both provided with a fixing groove on the opposite side; the fixing groove is coaxially arranged with the through hole 21. A second anti-slip protrusion is provided inside the fixing groove, and the outside of the fixed part 11 and the movable part 12 are both covered with a layer of silicone layer. Silicone is a material with high elasticity, wear resistance, high temperature resistance and aging resistance, which can provide additional protection and buffering for the fixed part and the movable part to prevent damage caused by collision or friction during connection or use. The thickness and hardness of the silicone layer are accurately calculated to ensure that it can provide sufficient protection without adding too much weight or affecting the flexibility of the connection. In addition, a series of first anti-slip protrusions are designed on the outside of the silicone layer. These protrusions are integrally formed by silicone material, which are not only tightly combined with the silicone layer, but also can enhance the friction between the supported object and the device to prevent the supported object from being unstable or falling off during use.

[0053] In order to further improve the stability of the fixation, fixing grooves are provided on the opposite sides of the fixing portion 11 and the movable portion 12. These fixing grooves are coaxially arranged with the through hole 21, that is, their center lines are in the same straight line, thereby ensuring the alignment and stability during the connection. In addition, second anti-skid protrusions are further arranged inside the fixing grooves. These protrusions are also made of wear-resistant and corrosion-resistant materials, such as hard plastic or metal alloy. The design purpose of the second anti-skid protrusions is to increase the friction between the clamped object and the fixing portion 11 and the movable portion 12, so as to prevent the clamped object from loosening due to activity or external force during long-term testing.

[0054] The shape, size and distribution of the first anti-slip protrusion and the second anti-slip protrusion can be further optimized as follows. The shape can be a rhombus or a rectangle. These shapes can provide a larger contact area and have clear edges, which can effectively increase the friction between the clamped object and the silicone layer to prevent sliding. It can also be circular or elliptical. The circular or elliptical protrusions are more rounded, which can disperse the pressure and reduce the pressure damage caused by long-term clamping to the tail of the mouse. In order to increase the anti-slip effect, irregular protrusions such as wavy and serrated shapes can also be used. These shapes can provide more diverse contact points and further enhance the anti-slip performance. In addition, the diameter or side length of the protrusion should be set according to the thickness of the silicone layer and the size of the clamped object. Generally speaking, the diameter or side length of the protrusion should be between 2 and 5 mm to ensure that it can provide sufficient anti-slip effect without being too abrupt. The height of the protrusion also needs to be carefully calculated. Too high will cause excessive local pressure, and too low may not provide sufficient anti-slip effect. Generally speaking, the height of the protrusion should be between 0.5 and 2 mm. On the outside of the silicone layer, the protrusions can be evenly distributed to ensure a stable anti-slip effect at any position. In some key positions, such as the clamping position of the mouse tail, more protrusions can be concentrated to enhance the anti-slip effect. In order to increase the anti-slip effect, the protrusions can also be arranged in a staggered manner, which can provide more diverse contact points and improve the stability of clamping. In addition, in order to ensure that the protrusions are tightly combined with the silicone layer, one-piece molding or bonding can be used.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rat tail suspension device, characterized in that: It comprises a rollable section (1) and an anti-climbing section (2); The rollable section (1) comprises a detachable fixed portion (11) and a movable portion (12); the anti-climbing section (2) is provided with a through hole (21); When in use, the fixed portion (11) and the movable portion (12) are arranged in close proximity, the tail of the experimental mouse passes through the through hole (21) and is clamped by the fixed portion (11) and the movable portion (12) arranged in close proximity; the fixed portion (11) and the movable portion (12) are in a curled structure, the free end of the anti-climbing section (2) is located below the lowest point of the curlable section (1), and the vertical distance between the free end of the anti-climbing section (2) and the lowest point of the curlable section (1) is 1 to 3 cm.

2. A rat tail suspension device according to claim 1, characterized in that: One end of the fixed part (11) is connected to the anti-climbing section (2), and the other end is hinged to the movable part (12).

3. A rat tail suspension device according to claim 1, characterized in that: A magnetic component is provided inside the fixed part (11), and a magnetically attractable component is provided inside the movable part (12); when the fixed part (11) and the movable part (12) are close to each other, the magnetic component and the magnetically attractable component are attracted and fixed to each other by magnetic force.

4. A rat tail suspension device according to claim 3, characterized in that: The magnetic component is arranged along the length direction of the fixed part (11), and the magnetic attraction component is arranged along the length direction of the movable part (12).

5. A rat tail suspension device according to claim 1, characterized in that: A shape memory component (4) is provided inside the fixing portion (11), and the shape memory component (4) is extended along the length direction of the fixing portion (11); the shape memory component (4) forms a curling structure when subjected to external stress.

6. A rat tail suspension device according to claim 5, characterized in that: The shape memory component (4) is a memory metal spring.

7. A rat tail suspension device according to claim 1, characterized in that: A hanging member (3) is provided on the outside of the rollable section (1); when the hanging member (3) is in a vertically upward state, the anti-climbing section (2) is arranged vertically downward.

8. A rat tail suspension device according to claim 1, characterized in that: The exterior of the fixed part (11) and the movable part (12) are both covered with a silicone layer, and the exterior of the silicone layer is provided with a first anti-slip protrusion.

9. A rat tail suspension device according to claim 1, characterized in that: A fixing groove is provided on one side opposite to the fixing portion (11) and the movable portion (12); the fixing groove is coaxially arranged with the through hole (21).

10. A rat tail suspension device according to claim 9, characterized in that: A second anti-slip protrusion is arranged inside the fixing groove.

Images