Artificial muscle simulating device

Abstract

The utility model discloses an artificial muscle imitating device which comprises a rubber sleeve, a connecting piece, a connecting piece, a connecting piece and a connecting piece, and the rubber sleeve has elasticity and can stretch out and draw back in the depth direction of the rubber sleeve; the inductance coil is arranged in the rubber sleeve, and the inductance coil extends in the depth direction of the rubber sleeve and is used for generating an electromagnetic field when being electrified; the iron core movably penetrates through the inductance coil and has a first state and a second state, and when the iron core is in the first state, the iron core pushes the inner wall of the rubber sleeve under the action of an electromagnetic field so as to stretch the rubber sleeve; and when the iron core is in a second state, the stretched rubber sleeve counteracts the iron core to retract and reset during power failure. It can be understood that energy loss is reduced, the noise problem and the heating problem are solved, and the humanistic requirement of the market is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to adult products technical field, especially relate to a kind of artificial muscle device. BACKGROUND

[0002] Artificial muscle realizes the function of power output and deformation displacement by driving elastic material deformation by power source, in recent years, due to the separation of sexual behavior and reproduction, artificial muscle as adult products develops rapidly.Currently, market puts forward more and more humanistic requirements to artificial muscle, mainly reflected in noise problem and heating problem, for example: noise level is lower than 50 decibels at 0.3 meters;The surface temperature cannot be higher than 45 DEG C when continuously working for 30 minutes.Motor drive converts rotary output into linear motion, and the transmission chain is too long, so the energy loss is more and the heating is serious, which cannot meet the temperature requirement.Based on this, although electromagnetic drive mode avoids the heating problem caused by the long transmission chain, but the existing electromagnetic drive exists the problem of balanced reverse electromagnetic force, and the noise problem caused by rigid impact in the process of balancing reverse electromagnetic force cannot meet the market humanistic requirements. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of artificial muscle device, reduce energy consumption at the same time, solve the noise problem and heating problem, meet the market humanistic requirements.

[0004] To achieve the above purpose, the artificial muscle device provided by the utility model comprises:

[0005] Rubber sleeve, the rubber sleeve has elasticity, the rubber sleeve can be telescopic along its depth direction;

[0006] Inductor coil, the inductor coil is arranged in the rubber sleeve, the inductor coil extends along the depth direction of the rubber sleeve, for generating electromagnetic field when electrified;

[0007] Iron core, the iron core can be movably arranged in the inductor coil and has first state and second state, when the iron core is in first state, the iron core pushes the inner wall of the rubber sleeve under the action of electromagnetic field, for stretching the rubber sleeve;When the iron core is in second state, the stretched rubber sleeve reacts on the iron core and retracts to reset when power off.

[0008] Optionally, the rubber sleeve is provided with elastic member, the elastic member is arranged at the end of the iron core away from the inductor coil, so that the stretched rubber sleeve retracts to reset by the action of the iron core on the elastic member when power off.

[0009] Optionally, the iron core comprises a fixed iron core and a movable iron core, the fixed iron core is mounted on the inductor coil, the movable iron core is movably arranged through the inductor coil and the fixed iron core, and the elastic member is arranged on the end of the movable iron core away from the fixed iron core.

[0010] Optionally, the fixed iron core comprises a plug-in part and a cover part, the plug-in part is protruded from the surface of the cover part, the plug-in part is arranged in the inductor coil, the cover part is protruded from the inductor coil, and the movable iron core is arranged through the plug-in part and the cover part.

[0011] Optionally, a shell is arranged in the rubber sleeve, the shell and the cover part form a closed cavity, the inductor coil is arranged in the closed cavity, the movable iron core is arranged through the closed cavity, and the elastic member is arranged on the surface of the shell away from the fixed iron core.

[0012] Optionally, the elastic member comprises an elastic rope, two ends of the elastic rope are connected to the two sides of the shell away from each other, and the end of the movable iron core away from the fixed iron core abuts against the elastic rope, so that the rubber sleeve stretched when power off is retracted by the movable iron core pushing and pulling the elastic rope.

[0013] Optionally, the movable iron core comprises a head, a variable-diameter section and a rod, the head and the rod are connected through the variable-diameter section, the fixed iron core is formed with a guide groove, and the movable iron core is movably arranged through the fixed iron core through cooperation of the variable-diameter section and the guide groove.

[0014] Optionally, a shock-absorbing pad is arranged between the variable-diameter section and the rod, and the guide groove is formed with an avoiding opening, so that the movable iron core is movably arranged through the fixed iron core through cooperation of the shock-absorbing pad and the avoiding opening.

[0015] Optionally, the rubber sleeve has an opening, the inductor coil is arranged in the rubber sleeve through the opening, a support seat is arranged at the opening, and the support seat closes the opening.

[0016] Optionally, a support block is arranged in the rubber sleeve, the support block is attached to the inner wall of the rubber sleeve, and the end of the iron core arranged through the inductor coil is detachably connected to the support block, so that the iron core drives the support block to act on the rubber sleeve under the action of the electromagnetic field.

[0017] In the technical scheme of the utility model, the inductance coil generates electromagnetic field when electrified, the magnetized iron core generates electromagnetic force under the action of electromagnetic field to push the inner wall of rubber sleeve to move, the rubber sleeve is stretched under the action of electromagnetic force of the iron core, the iron core cannot be magnetized when power off, the iron core loses the force to the rubber sleeve, and the stretched rubber sleeve is retracted to reset by the reaction of the iron core. In this way, the reciprocating extension and contraction of the rubber sleeve is realized by the alternate power on and off, so that the energy loss is reduced and the heating problem is avoided. The utility model realizes the extension and contraction of the rubber sleeve through the cooperation of electromagnetic drive and elastic deformation, and avoids the noise problem caused by rigid impact. Moreover, the output of the iron core directly acts on the rubber sleeve to realize the extension and contraction of the rubber sleeve, and there is no problem of self-consumption of output. The utility model reduces energy consumption, solves the noise problem and the heating problem, and meets the market requirement of humanity. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0019] Figure 1 It is an explosion structure diagram of the artificial muscle device in an embodiment of the utility model;

[0020] Figure 2 It is Figure 1 It is an assembly structure schematic view of the artificial muscle device;

[0021] Figure 3 It is Figure 2 It is an electrified state view of the artificial muscle device;

[0022] Figure 4 It is Figure 2 It is a power-off state view of the artificial muscle device;

[0023] Explanation of the drawings:

[0024] Name Reference Name Reference Rubber sleeve 100 Moving iron core 330 Support block 101 Head 331 Induction coil 200 Variable diameter section 333 Coil 210 Rod portion 335 Copper core 230 Housing 400 Iron core 300 Closed cavity 400a Fixed iron core 310 First plastic sheet 401 Plug-in portion 311 Second plastic sheet 402 Guide groove 311a Elastic member 500 Avoidance opening 311b Support seat 600 Covering portion 313 Shock-absorbing pad 700 DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below by combining the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0027] Referring to Figures 1 to 4 As shown in the drawings, in an embodiment of the present application, an artificial muscle device comprises: a rubber sleeve 100, the rubber sleeve 100 has elasticity, and the rubber sleeve 100 can be stretched along its depth direction; an inductor coil 200, the inductor coil 200 is arranged in the rubber sleeve 100, the inductor coil 200 extends along the depth direction of the rubber sleeve 100, and is used to generate an electromagnetic field when powered on; and an iron core 300, the iron core 300 can be movably arranged in the inductor coil 200 and has a first state and a second state, when the iron core 300 is in the first state, the iron core 300 pushes the inner wall of the rubber sleeve 100 under the action of the electromagnetic field, and is used to stretch the rubber sleeve 100, and when the iron core 300 is in the second state, the stretched rubber sleeve 100 reacts on the iron core 300 to reset.

[0028] In the technical scheme of the present application, when the iron core 300 is in the first state, referring to Figure 2 As shown in the drawings, when powered on, the inductor coil 200 generates an electromagnetic field, the magnetized iron core 300 generates an electromagnetic force under the action of the electromagnetic field, the rubber sleeve 100 is stretched under the action of the electromagnetic force of the iron core 300, and when the iron core 300 is in the second state, referring to Figure 3 As shown in the drawings, when powered off, the iron core 300 cannot be magnetized, the iron core 300 loses the force acting on the rubber sleeve 100, and the stretched rubber sleeve 100 reacts on the iron core 300 to reset. In this way, the reciprocating stretching and contraction movement of the rubber sleeve 100 is realized by alternating power on and off, so that energy loss is reduced and the heating problem is avoided. The stretching and contraction movement of the rubber sleeve 100 is realized by the cooperation of electromagnetic driving and elastic deformation in the present application, so that the noise problem caused by rigid impact is avoided. Moreover, in the present application, the output of the iron core 300 directly acts on the rubber sleeve 100 to realize the stretching and contraction of the rubber sleeve 100, and there is no problem of self-consumption of output. The present application reduces energy consumption while solving the noise problem and the heating problem, and meets the market demand for humanism.

[0029] It should be noted that the electromagnetic force and the elastic force in the utility model are in the depth direction of the rubber sleeve 100, and no other direction force is generated, so that the energy consumption is saved, and the heating problem caused by heat loss is avoided. The artificial muscle device further comprises a control circuit connected to the inductor coil 200, which is used for controlling the on-off of the inductor coil 200. Of course, the control circuit can also adjust the current of the inductor coil 200, so as to adjust the amplitude and frequency of the reciprocating motion of the iron core 300 penetrating the inductor coil 200. In the embodiment of the utility model, the inductor coil 200 comprises a copper core 230 and a coil 210, the copper core 230 has a tubular structure, and the coil 210 is wound around the copper core 230 along the circumference of the tubular structure. When the inductor coil 200 is electrified, an electromagnetic field is generated in the inductor coil 200, the iron core 300 is an electromagnet with magnetism after electrification, and the iron core 300 cuts the magnetic induction line under the action of the electromagnetic field in the electrification magnetization state. In order to adjust the motion direction of the iron core 300, the winding direction of the coil 210 can be adjusted to adjust the current direction, so that the iron core 300 moves to push the inner wall of the rubber sleeve 100, so that the rubber sleeve 100 is stretched. Of course, the iron core 300 can be directly connected to the inner wall of the rubber sleeve 100, or can indirectly act on the inner wall of the rubber sleeve 100 through a driving rod, and the embodiment is not limited thereto, and the above is within the protection scope of the utility model. The rubber sleeve 100 in the embodiment of the utility model is in a cylindrical structure, the rubber sleeve 100 is an integral structure without groove combination and auxiliary structure, and has the advantages of waterproof performance, convenient self-cleaning, easy cleaning and cleaning disinfection of the rubber sleeve 100.

[0030] Referring to Figures 1 to 4 In an embodiment of the utility model, an elastic member 500 is installed in the rubber sleeve 100, the elastic member 500 is arranged at the end of the iron core 300 away from the inductor coil 200, so that the rubber sleeve 100 stretched in the power-off state is retracted and reset by the action of the iron core 300 on the elastic member 500. It should be noted that the elastic member 500 in the embodiment of the utility model can be a spring or an elastic rope, and the rubber sleeve 100 stretched in the power-off state can be acted on by the iron core 300 on the elastic member 500. In the energy transfer process, the elastic member 500 generates a counterforce to resist the inertial force of the iron core 300, so that the elastic member 500 stores the elastic potential energy released by the rubber sleeve 100, and finally the rubber sleeve 100 releases the elastic potential energy and retracts and resets to the relaxed state. When the elastic member 500 balances the inertial force of the iron core 300, the elastic rope has the maximum deformation, and the iron core 300 has the maximum reverse displacement, as shown in Figure 4 At this time, the electrification and magnetization of the iron core 300 enter the next cycle of impact stretching. In the embodiment of the utility model, the deformation of the elastic member 500 absorbs the inertial force of the iron core 300, avoids the rigid impact, and further avoids the generation of noise.

[0031] Referring to Figures 1 to 4As shown in the utility model one embodiment, the iron core 300 includes the fixed iron core 310 and the movable iron core 330, the fixed iron core 310 is installed to the inductance coil 200, the movable iron core 330 can move and be provided with the elastic element 500 at the end of the movable iron core 330 away from the fixed iron core 310. It needs to be explained that the movable iron core 330 magnetization when electrifying is affected by the electromagnetic field formed by the inductance magnetic field and moves to the fixed magnet, so as to push the inner wall of the rubber sleeve 100 and stretch the rubber sleeve 100. At the same time, the fixed iron core 310 magnetization when electrifying is affected by the limit and generates the electromagnetic force that attracts the movable iron core 330, so as to increase the acceleration of the movable iron core 330 movement, thereby accelerating the movement of the movable magnet. And the accelerated movement of the movable iron core 330 promotes the inductance coil 200 to generate a larger electromagnetic field, further promotes the accelerated movement of the movable iron core 330, the movable iron core 330 generates a larger acceleration, and the movement rate is faster. In this way, the multi-stage acceleration of the movable iron core 330 is realized, the variable acceleration movement of the movable iron core 330 is achieved through the multi-stage acceleration of the movable iron core 330, the single mechanical movement is avoided, and the market humanistic requirements are met. In the utility model embodiment, the rubber sleeve 100 stretched when de-energized can act on the elastic element 500 through the movable iron core 330, the elastic element 500 generates a counterforce resisting the inertial force of the movable iron core 330, so that the elastic element 500 stores the elastic potential energy released by the rubber sleeve 100, avoids the rigid impact, and thereby reduces the generated noise. It needs to be explained that the end of the movable iron core 330 can be detachably connected to the inner wall of the rubber sleeve 100 through the driving rod, the connection mode of the movable iron core 330 and the driving rod can be threaded connection, interference fit connection, slot connection or welding fixed connection, and even can be an integral structure, and the utility model embodiment is not limited thereto, and the above are all within the protection scope of the utility model.

[0032] Referring to Figures 1 to 4 As shown in the utility model one embodiment, the fixed iron core 310 includes the plug-in part 311 and the cover part 313, the plug-in part 311 is protruded on the surface of the cover part 313, the plug-in part 311 is inserted into the inductance coil 200, and the cover part 313 is protruded on the inductance coil 200. It needs to be explained that the utility model embodiment realizes the stable installation of the fixed iron core 310 on the inductance coil 200 through the cooperation of the plug-in part 311 and the cover part 313, so as to facilitate the magnetization of the fixed iron core 310 to accelerate the movement of the movable iron core 330, improve the structural stability, and avoid the generation of noise. And through the setting of the cover part 313, a closed structure is formed, thereby effectively reducing the propagation of noise.

[0033] Referring to Figures 1 to 4As shown, in one embodiment of this utility model, a housing 400 is installed inside the rubber sleeve 100. The housing 400 and the cover portion 313 enclose a closed cavity 400a. An inductor coil 200 is disposed within the closed cavity 400a, a moving iron core 330 passes through the closed cavity 400a, and an elastic element 500 is disposed on the surface of the housing 400 away from the fixed iron core 310. It should be noted that, in this embodiment of the utility model, by installing the inductor coil 200 within the closed cavity 400a formed by the housing 400 and the cover portion, fitting the rubber sleeve 100 onto the housing 400, and disposing of the elastic element 500 on the surface of the housing 400 away from the fixed iron core 310, the stability of the structure during the driving process is ensured while effectively preventing noise propagation and reducing the operating noise of the simulated artificial muscle device. Of course, a sound-absorbing structure can also be provided inside the housing 400 to reduce the generated noise, thereby reducing operating noise and meeting noise requirements.

[0034] See Figures 1 to 4 As shown, in one embodiment of this utility model, the elastic element 500 includes an elastic rope, the two ends of which are respectively connected to the two sides of the housing 400 that are opposite to each other. The end of the moving iron core 330 that is away from the fixed iron core 310 abuts against the elastic rope. When the power is off, the stretched rubber sleeve 100 is pushed and pulled by the moving iron core 330 to retract and reset. It should be noted that in this embodiment of the utility model, before power is applied, the elastic rope is in a slightly stretched state, and the rubber sleeve 100 is in a relaxed state. When power is applied, the moving iron core 330 is magnetized under the push of the elastic rope and impacts the rubber sleeve 100 under the action of the electromagnetic field. The rubber sleeve 100 stores elastic potential energy under the impact of the moving iron core 330. Since the rubber sleeve 100 has high elasticity, this ensures that the noise generated during the impact process is small. When power is de-energized, the moving iron core 330 loses its magnetism and does not generate a force on the rubber sleeve 100. The stretched rubber sleeve 100 releases elastic potential energy and reacts to the moving iron core 330. The moving iron core 330 moves in the opposite direction at a high speed. The deformation internal force of the elastic rope effectively absorbs the inertial force of the moving iron core 330, avoiding the impact of the moving iron core 330 on the support seat 600 when it moves in the opposite direction, thereby reducing the noise generated and meeting the noise requirements. In addition, in this embodiment of the present invention, the elastic element 500 may include multiple elastic ropes. The two ends of each elastic rope are connected to the two ends of the housing 400 that are opposite to each other. The end of the moving iron core 330 away from the fixed iron core 310 simultaneously abuts against the multiple elastic ropes. Thus, when the power is cut off, the stretched rubber sleeve 100 is pushed and pulled by the moving iron core 330 to retract and reset. The multiple elastic ropes fully absorb the inertial force of the moving iron core 330, thereby avoiding rigid impact and further reducing noise.

[0035] See Figures 1 to 4As shown, in one embodiment of this utility model, the moving iron core 330 includes a head 331, a variable diameter section 333, and a rod portion 335. The head 331 and the rod portion 335 are connected by the variable diameter section 333. The fixed iron core 310 has a guide groove 311a. Under the action of an electromagnetic field, the moving iron core 330 is guided to the fixed iron core 310 by the cooperation of the variable diameter section 333 and the guide groove 311a. It should be noted that in this embodiment of the utility model, the head 331 is sandwiched between the inner walls of the inductor coil 200. The cross-sectional area of ​​the head 331 is larger than the cross-sectional area of ​​the rod portion 335. The head 331 is connected to the rod portion 335 through the variable diameter end, so that the rod portion 335 passes through the fixed iron core 310. With the cooperation of the variable diameter section 333 and the guide groove 311a, the variable diameter section 333 of the moving iron core 330 moves toward the guide groove 311a of the fixed iron core 310, guiding the moving iron core 330 toward the fixed iron core 310. When the moving iron core 330 moves relative to the fixed iron core 310, it generates a changing magnetic field, which drives the moving iron core 330 to achieve the variable speed movement of the rubber sleeve 100. It should be noted that the variable diameter section 333 can be a tapered variable diameter structure, a stepped variable diameter structure, or a combination of multiple variable diameter structures, as long as it achieves the guiding cooperation with the fixed iron core 310. This embodiment of the utility model is not limited to these, and all of the above are within the protection scope of this utility model.

[0036] See Figures 1 to 4 As shown, in one embodiment of this utility model, a shock-absorbing pad 700 is sleeved between the variable diameter section 333 and the rod portion 335, and a clearance opening 311b is formed in the guide groove 311a. Through the cooperation of the shock-absorbing pad 700 and the clearance opening 311b, the moving iron core 330 can be movably inserted into the fixed iron core 310. It should be noted that in this embodiment of the utility model, the moving iron core 330 can movably insert into the fixed iron core 310 through the cooperation of the shock-absorbing pad 700 and the clearance opening 311b. While guiding the movement of the moving iron core 330, this reduces the rigid impact of the moving iron core 330 on the fixed iron core 310, thus reducing the generated noise. This embodiment of the utility model can provide multiple shock-absorbing pads 700 as needed; however, this embodiment of the utility model is not limited to this, and all of the above are within the protection scope of this utility model.

[0037] See Figures 1 to 4As shown, in one embodiment of this utility model, the rubber sleeve 100 has an opening, and the inductor coil 200 is installed inside the rubber sleeve 100 through the opening. A support seat 600 is provided at the opening, and the support seat 600 closes the opening. It should be noted that in this embodiment of the utility model, the support seat 600 closes the opening of the rubber sleeve 100, thereby isolating noise. Furthermore, an elastic element 500 is provided between the support seat 600 and the housing 400. The deformation internal force of the elastic element 500 effectively absorbs the inertial force of the iron core 300, preventing the iron core 300 from impacting the support seat 600 when moving in the opposite direction, thereby reducing the generated noise and meeting the noise requirements. Additionally, a wire through hole is provided on the surface of the support seat 600 opposite to the elastic element 500, through which the wire connecting the inductor coil 200 is connected to the outside.

[0038] See Figures 1 to 4 As shown, in one embodiment of this utility model, a support block 101 is provided inside the rubber sleeve 100. The support block 101 fits against the inner wall of the rubber sleeve 100. The end of the iron core 300 through which the inductor coil 200 passes is detachably connected to the support block 101, so that under the action of the electromagnetic field, the iron core 300 drives the support block 101 and acts on the rubber sleeve 100. It should be noted that in this embodiment of the utility model, the rubber sleeve 100 and the support block 101 can be an integral structure or a separate structure. The support block 101 can be a rigid structure or a soft structure. The detachable connection between the moving iron core 330 and the support block 101 can be an insertion connection or an abutment connection, as long as the transmission between the moving iron core 330 and the rubber sleeve 100 can be realized. This embodiment of the utility model is not limited to this, and all of the above are within the protection scope of this utility model.

[0039] See ​ As shown, in one embodiment of this utility model, the inductor coil 200 includes a copper core 230 and a coil 210. The copper core 230 has a tubular structure, and the coil 210 is wound around the circumference of the tubular structure. The iron core 300 is movably inserted through the tubular structure. It should be noted that this utility model generates an electromagnetic field when energized by winding the coil 210 around the copper core 230. This generated electromagnetic field drives the iron core 330 to move, thereby effectively realizing the expansion and contraction of the rubber sleeve 100. This utility model can provide a first plastic sheet 401 and a second plastic sheet 402 at both ends of the copper core 230. The first plastic sheet 401 and the second plastic sheet 402 are respectively located at both ends of the tubular structure. The moving iron core 330 passes through the first plastic sheet 401 and then through the inductor coil 200, while the fixed iron core 310 passes through the second plastic sheet 402 and is installed in the inductor coil 200. This achieves stable installation of the structure while avoiding the formation of a closed structure for the inductor coil 200, thereby preventing noise transmission and further reducing noise.

[0040] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A device mimicking artificial muscles, characterized in that, include: A rubber sleeve, the rubber sleeve being elastic and capable of stretching and contracting along its depth direction; An inductor coil is disposed inside the rubber sleeve and extends along the depth direction of the rubber sleeve, and is used to generate an electromagnetic field when energized; The iron core is movably threaded through the inductor coil and has a first state and a second state. When the iron core is in the first state, under the action of the electromagnetic field, the iron core pushes the inner wall of the rubber sleeve to stretch the rubber sleeve. When the iron core is in the second state, when the power is off, the stretched rubber sleeve reacts to the iron core and retracts to its original position.

2. The artificial muscle-like device as described in claim 1, characterized in that, An elastic element is installed inside the rubber sleeve. The elastic element is located at the end of the iron core away from the inductor coil, so that when the power is off, the stretched rubber sleeve will retract and reset through the action of the iron core on the elastic element.

3. The artificial muscle-like device as described in claim 2, characterized in that, The iron core includes a fixed iron core and a moving iron core. The fixed iron core is installed on the inductor coil. The moving iron core is movably inserted through the inductor coil and the fixed iron core in sequence. The elastic element is provided at the end of the moving iron core away from the fixed iron core.

4. The artificial muscle-like device as described in claim 3, characterized in that, The fixed iron core includes a plug-in portion and a cover portion. The plug-in portion protrudes from the surface of the cover portion and is inserted into the inductor coil. The cover portion protrudes from the inductor coil, and the moving iron core passes through the plug-in portion and the cover portion in sequence.

5. The artificial muscle-like device as described in claim 4, characterized in that, A housing is installed inside the rubber sleeve, and the housing and the cover form a closed cavity. The inductor coil is disposed in the closed cavity, the moving iron core passes through the closed cavity, and the elastic element is disposed on the surface of the housing away from the fixed iron core.

6. The artificial muscle-like device as described in claim 5, characterized in that, The elastic element includes an elastic rope, with its two ends connected to the two opposite sides of the housing. The end of the moving iron core away from the fixed iron core abuts against the elastic rope. When the power is off, the stretched rubber sleeve retracts and resets by pushing and pulling the elastic rope through the moving iron core.

7. The artificial muscle-like device as described in any one of claims 3 to 6, characterized in that, The moving iron core includes a head, a variable diameter section, and a rod. The head and the rod are connected by the variable diameter section. The fixed iron core has a guide groove. The moving iron core can be movably inserted into the fixed iron core through the cooperation of the variable diameter section and the guide groove.

8. The artificial muscle-like device as described in claim 7, characterized in that, A shock-absorbing pad is sleeved between the variable diameter section and the rod, and the guide groove forms an avoidance opening. With the cooperation of the shock-absorbing pad and the avoidance opening, the moving iron core can be movably inserted into the fixed iron core.

9. The artificial muscle-like device as described in any one of claims 1 to 6, characterized in that, The rubber sleeve has an opening, and the inductor coil is installed inside the rubber sleeve through the opening. A support is provided at the opening, and the support closes the opening.

10. The artificial muscle-like device as described in any one of claims 1 to 6, characterized in that, The rubber sleeve is provided with a support block, which is attached to the inner wall of the rubber sleeve. The end of the iron core that passes through the inductor coil is detachably connected to the support block, so that the iron core drives the support block under the action of the electromagnetic field and acts on the rubber sleeve.

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