Chin resistance training device

Abstract

The invention relates to the technical field of oral care, in particular to a chin resistance training device which comprises a supporting column, a neck protector is arranged on the supporting column, a pressing mechanism for training chin resistance through resilience force is arranged on the supporting column, the pressing mechanism comprises a supporting table installed on the supporting column, and a second spring is fixedly connected to the supporting table; an arc-shaped plate making contact with the chin is fixedly connected to the second spring, a sliding rod in sliding connection with the supporting table is fixedly connected to the arc-shaped plate, a transmission block is fixedly connected to the end of the sliding rod, a protection assembly used for preventing the arc-shaped plate from rebounding is arranged on the transmission block, a clamping block is telescopically installed on the transmission sleeve, and the contact face, making contact with the limiting block, of the clamping block moving from top to bottom is in an arc shape. The distances between the multiple limiting blocks and the clamping blocks are sequentially reduced from top to bottom, and the supporting table is further provided with a transmission mechanism for driving the arc-shaped plate to reset through gas circulation. By arranging the pressing mechanism, the muscle strength of the chin part can be effectively enhanced, and the chewing and sound production functions are improved.

Description

Technical Field

[0001] The invention relates to the technical field of oral care, in particular to a chin resistance training device. Background Art

[0002] The chin resistance training device is designed to enhance the chin and mandibular muscle strength and is widely used in facial rehabilitation, dysphagia recovery, sports training, and cosmetic body shaping. There are many chin resistance training devices on the market. These devices usually exercise the chin muscles by applying external force to improve their strength and endurance. However, each user's chin strength and endurance level are different. When weaker users use fixed resistance settings, they may feel a great challenge, resulting in increased fatigue and even sports injuries. For stronger users, they may feel that the resistance is too light, they cannot get enough exercise, and the training effect is not obvious. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a chin resistance training device, which has the advantage of adjusting the training intensity according to the user's situation and solves the problem of difficulty in adjusting the training intensity.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A chin resistance training device comprises a pillar, a neck guard is provided on the pillar, and a pressing mechanism for training the chin resistance through rebound force is provided on the pillar. The pressing mechanism comprises a support platform installed on the pillar, a spring two is fixedly connected to the support platform, an arc plate in contact with the chin is fixedly connected to the spring two, a sliding rod slidably connected to the support platform is fixedly connected to the arc plate, a transmission block is fixedly connected to the end of the sliding rod, a protective component for preventing the arc plate from rebounding is provided on the transmission block, and the protective component comprises an oblique bar fixedly connected to the support platform, a plurality of limit blocks distributed in a staggered manner are fixedly connected to the oblique bar, a transmission sleeve is fixedly connected to the transmission block, a card block is telescopically installed on the transmission sleeve, the contact surface of the card block moving from top to bottom with the limit block is arc-shaped, the spacing between the plurality of limit blocks and the card block decreases successively from top to bottom, and a transmission mechanism for driving the arc plate to reset through gas circulation is also provided on the support platform.

[0006] Preferably, a transmission disc is slidably connected inside the transmission sleeve, a connecting rod slidably connected to the transmission sleeve is fixedly connected to the transmission disc, the clamping block is fixedly connected to the connecting rod, and a spring is fixedly connected between the transmission disc and the inner wall of the transmission sleeve.

[0007] Preferably, the transmission mechanism includes an air guide cover fixedly connected to the support platform, a transmission shaft is rotatably installed in the air guide cover, a fan blade group is fixedly connected to the transmission shaft, and a transmission wheel is also installed, a transmission rope for pulling the card block to move is fixedly connected to the transmission wheel, a guide ring is fixedly connected to the transmission sleeve, the transmission rope passes through the guide ring and is connected to the transmission disk, the transmission rope is in an inclined L-shape, and a tensioning assembly is provided on the support platform to prevent the transmission rope from scattering.

[0008] Preferably, a stopper is fixedly connected to the bottom of each of the plurality of limit blocks, and the spacings between the plurality of stoppers and the clamping blocks are the same.

[0009] Preferably, a support sleeve is fixedly connected to the support platform, a sliding sleeve slidably connected to the support sleeve is fixedly connected to the bottom of the arc-shaped plate, and the second spring is located in the support sleeve.

[0010] Preferably, a cavity is provided in the pillar, a screw is rotatably installed in the cavity, a limit sleeve is threadedly connected to the screw, a U-shaped frame is fixed to the limit sleeve, the support platform is fixed to the U-shaped frame, and the limit sleeve and the pillar are slidably connected via a slide groove.

[0011] Preferably, a rotating rod is rotatably mounted on the pillar, and bevel gears for meshing transmission are mounted on the screw rod and the rotating rod.

[0012] Preferably, the tensioning assembly includes a limit bar fixedly connected to the support platform, on which a rack 1 is movably mounted, and an end of the rack 1 is fixedly connected to a limit frame for pushing and pulling the transmission rope, and the limit frame is sleeved on the outside of the transmission rope.

[0013] Preferably, a connecting shaft is rotatably installed on the support platform, and a spur gear 1 meshing with a rack 1 is mounted on the connecting shaft. A spur gear 2 is also mounted on the connecting shaft, and a rack 2 meshing with the spur gear 2 is fixedly connected to the transmission sleeve.

[0014] Preferably, the neck guard is composed of two pads, the pillars are hinged to the two pads respectively, and the connection between the two pads is connected by a buckle.

[0015] By means of the above technical solution, the present invention provides a chin resistance training device, which has at least the following beneficial effects:

[0016] 1. The chin resistance training device allows the user to blow the fan blade group multiple times to reset the arc plate. When the user blows the fan blade group, the mouth needs to be opened, and the chin position can also be exercised to a certain extent. It relies on the user's blowing as power rather than electricity or other power sources, which reduces dependence on power supply and is convenient for use in different environments. It also reduces the complexity and failure rate of the equipment.

[0017] 2. The chin resistance training device has a limit block that blocks the card block, which can prevent the spring 2 from pushing the arc plate up when no force is applied to the arc plate, and avoids the arc plate from quickly resetting to cause damage to the chin after loss of force, and avoids the arc plate from applying force to the chin, which is convenient for the user's chin to rest and provides a progressive load, which can effectively help them gradually restore the chin function during the rehabilitation process.

[0018] 3. The chin resistance training device allows the user to accurately adjust the intensity of the exercise by compressing or stretching the spring 2. This mechanism allows the user to choose the appropriate intensity according to their own exercise goals and physical fitness level, thereby improving the targeted nature of the training.

[0019] 4. The chin resistance training device not only drives the mechanical device when the user blows the fan blade group, but also naturally exercises the chin muscles by opening the mouth, integrating functional training and mechanical movement, and improving the efficiency and interest of training.

[0020] 5. The chin resistance training device is provided with spring 2, which can generate thrust on the arc plate. The chin opens downward to push the arc plate down. The thrust of spring 2 can train the chin, help users better control the movement of the chin, and improve coordination and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in the front view direction;

[0023] Figure 2 It is a structural schematic diagram of the pressing mechanism of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the protection component of the present invention;

[0025] Figure 4 It is a schematic diagram of the external connection structure of the support platform of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the tensioning assembly of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the present invention when viewed from above.

[0029] Reference numerals:

[0030] 100, support; 101, neck guard; 102, buckle;

[0031] 200, pressing mechanism; 201, arc plate; 202, cavity; 203, support platform; 204, spring 2; 205, slide bar; 206, transmission block; 207, protection component; 2071, transmission sleeve; 2072, spring 1; 2073, transmission plate; 2074, connecting rod; 2075, clamping block; 2076, oblique bar; 2077, limit block; 2078, stopper; 208, support sleeve; 209, sliding sleeve; 210, tensioning component; 2101, limit bar; 2102, rack 1; 2103, limit frame; 2104, connecting shaft; 2105, spur gear 1; 2106, spur gear 2; 2107, rack 2; 211, screw; 212, limit sleeve;

[0032] 300, transmission mechanism; 301, wind guide cover; 302, transmission shaft; 303, fan blade assembly; 304, transmission wheel; 305, transmission rope; 306, guide ring. DETAILED DESCRIPTION

[0033] 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.

[0034] Dysphagia refers to difficulties in swallowing, which is common in patients with stroke, brain injury, neurological diseases (such as Parkinson's disease and amyotrophic lateral sclerosis), and certain cancers. This condition seriously affects the patient's diet and nutritional intake, and may lead to a series of health problems such as aspiration, malnutrition, and social disorders. Therefore, rehabilitation training for swallowing function becomes particularly important. Traditional swallowing training methods mostly rely on the guidance of speech therapists to promote the recovery of swallowing reflexes through manual manipulation or verbal stimulation. However, these methods have some limitations, such as insufficient individualized training, difficulty in evaluating the effect, and lack of interest in training.

[0035] Embodiment 1:

[0036] The swallowing process involves the coordinated movement of multiple muscles, especially the jaw, throat and pharyngeal muscles. Chin resistance training can focus on strengthening these key muscle groups, thereby enhancing their strength and endurance and improving swallowing ability. In order to conduct rehabilitation training for the chin, combined with Figure 1 , Figure 2 , Figure 3 and Figure 7As shown, a chin resistance training device provided by the present invention includes a support column 100, on which a neck guard 101 is provided, and on which a pressing mechanism 200 for training the chin resistance through rebound force is provided. The neck guard 101 is first put on the neck, and then the chin is subjected to rehabilitation training through the pressing mechanism 200, which can effectively enhance the muscle strength of the chin area and improve the chewing and vocalization functions.

[0037] Many devices lack an instant feedback mechanism during the user's training process, and the user cannot evaluate his or her training effect in real time, which makes it impossible for the user to adjust the training strategy in a targeted manner, thereby affecting the long-term effect. In order to solve the above problem, the pressing mechanism 200 includes a support platform 203 installed on the pillar 100, a spring 204 is fixedly connected to the support platform 203, an arc plate 201 in contact with the chin is fixedly connected to the spring 204, and a sliding connection with the support platform 203 is fixedly connected to the arc plate 201. The sliding rod 205 has a transmission block 206 fixedly connected to its end. The transmission block 206 is provided with a protective component 207 for preventing the arc plate 201 from rebounding. First, the chin contacts the arc plate 201. Since the spring 204 is provided, a thrust can be generated on the arc plate 201. The chin opens downward to push the arc plate 201 down. The thrust of the spring 204 can train the chin, help the user better control the movement of the chin, and improve coordination and flexibility.

[0038] Since rapid resetting may cause the arc plate 201 to cause unexpected impact on the chin, causing muscle or joint damage, in order to solve the above problem, the protective component 207 includes an inclined bar 2076 fixed to the support platform 203, and a plurality of staggered limit blocks 2077 are fixed to the inclined bar 2076. A transmission sleeve 2071 is fixed to the transmission block 206, and a clamping block 2075 is telescopically installed on the transmission sleeve 2071. The contact surface of the clamping block 2075 moving from top to bottom and the limit block 2077 is an arc shape. The arc plate 201 is pushed downward by the chin, and the transmission block 206 on the slide bar 205 moves downward with the arc plate 201, and the clamping block 2075 on the transmission sleeve 2071 moves downward with the transmission block 206. The clamping block 2075 contacts the limit block 2077 to make it move outward, and then the clamping block 2075 disengages from the limit block 2077. 7. The block 2075 is located below the limit block 2077. The limit block 2077 blocks the block 2075, which can prevent the spring 204 from pushing the arc plate 201 up when no force is applied to the arc plate 201. This can prevent the arc plate 201 from quickly resetting and causing damage to the chin after the force is lost, and prevent the arc plate 201 from applying force to the chin, so that the user's chin can rest and a gradual load is provided, which can effectively help them gradually restore the chin function during the rehabilitation process. The spacing between the multiple limit blocks 2077 and the block 2075 decreases from top to bottom. When the arc plate 201 drives the block 2075 to move upward, the block 2075 can be moved multiple times to gradually move the arc plate 201 to the top, so as to prevent the arc plate 201 from suddenly moving to the top, and further protect the chin.

[0039] The support platform 203 is also provided with a transmission mechanism 300 for driving the arc plate 201 to reset through gas circulation. The arrangement of the transmission mechanism 300 can reset the arc plate 201 without taking external force.

[0040] The neck guard 101 is composed of two pads, and the support column 100 is hinged to the two pads respectively. The connection between the two pads is connected by a buckle 102, so that the neck guard 101 is easy to be installed on the neck.

[0041] According to the embodiment, when the chin applies a thrust and the arc plate 201 moves downward, the blocking mechanism of the limit block 2077 reduces the possible risk of reverse movement and enhances the safety of training.

[0042] Embodiment 2:

[0043] If the curved plate 201 suddenly returns to its original position, the training may be interrupted, and the stable resistance state cannot be maintained. This phenomenon will interfere with the user's training rhythm and reduce the training effect. In order to solve the above problem, combined with Figure 3 and Figure 6As shown, on the basis of embodiment one, a transmission disk 2073 is slidably connected in the transmission sleeve 2071, a connecting rod 2074 slidably connected to the transmission sleeve 2071 is fixedly connected to the transmission disk 2073, a clamping block 2075 is fixedly connected to the connecting rod 2074, a spring 2072 is fixedly connected between the transmission disk 2073 and the inner wall of the transmission sleeve 2071, and the setting of the spring 2072 can make the clamping block 2075 move outward when the clamping block 2075 contacts the limit block 2077, and can reset the clamping block 2075 when it does not contact the limit block 2077. The existence of the limit block 2077 prevents the clamping block 2075 from accidentally moving outward, thereby ensuring that the device remains stable during training, thereby protecting the user and the device itself.

[0044] If the stop block 2078 is not set, the block 2075 will continue to move forward, and more force is needed to drive the block 2075 to reset. In order to solve the above problem, the bottom of the multiple limit blocks 2077 are fixed with stop blocks 2078, and the spacing between the multiple stop blocks 2078 and the block 2075 is the same, so as to avoid excessive movement of the block 2075 and require more force to move the block 2075, so that the reset of the arc plate 201 is more labor-saving.

[0045] Furthermore, a support sleeve 208 is fixedly connected to the support platform 203, a sliding sleeve 209 is fixedly connected to the bottom of the arc plate 201 and is slidably connected to the support sleeve 208, and the spring 204 is located in the support sleeve 208. The setting of the sliding sleeve 209 makes the movement of the arc plate 201 more stable and avoids the displacement of the arc plate 201.

[0046] According to the embodiments, this design provides an effective feedback mechanism, allowing the user to clearly feel the results of the force applied by the chin, thereby enhancing the interactivity and effect of use.

[0047] Embodiment three:

[0048] The existing method of resetting the arc plate 201 is that the user manually drives it to reset it. After wearing the neck guard 101, the user's head will be positioned, and it is difficult to lower the head to find the mechanism for resetting the arc plate 201. In order to solve the above problem, combined with Figure 3 and Figure 6As shown, on the basis of the first embodiment, the transmission mechanism 300 includes an air guide cover 301 fixedly connected to the support platform 203, a transmission shaft 302 is rotatably installed in the air guide cover 301, a fan blade group 303 is fixedly connected to the transmission shaft 302, and a transmission wheel 304 is also provided, a transmission rope 305 for pulling the block 2075 to move is fixedly connected to the transmission wheel 304, a guide ring 306 is fixedly connected to the transmission sleeve 2071, the transmission rope 305 passes through the guide ring 306 and is connected to the transmission disk 2073, the transmission rope 305 is in an obliquely symmetrical L-shape, when the arc plate 201 needs to be reset, the user blows the fan blade group 303 to drive the transmission shaft 302 to rotate, the transmission wheel 304 rotates with the transmission shaft 302, the transmission wheel 304 rotates to reel in the transmission rope 305, and the transmission rope 305 pulls the transmission disk 2073 to drive the block 2075 on the connecting rod 2074 to move, and then the block 2075 is separated from the limit block 2077. The user can blow the fan blade group 303 multiple times to reset the arc plate 201. When the user blows the fan blade group 303, the mouth needs to be opened, and the chin position can also be exercised to a certain extent. It relies on the user's blowing as power instead of electricity or other power sources, which reduces the dependence on power supply and is convenient for use in different environments. At the same time, it also reduces the complexity and failure rate of the equipment. A tensioning assembly 210 for preventing the transmission rope 305 from scattering is provided on the support table 203, which can avoid the transmission rope 305 from scattering. The block 2075 can also be moved by hand to reset the arc plate 201.

[0049] Most existing training devices have limited resistance adjustment, usually only fixed resistance options can be provided, and it is difficult to adjust in real time according to the user's strength level, resulting in the user may not be able to obtain a suitable challenge during the training process, affecting the continuity and effectiveness of the training. In order to solve the above problems, a cavity 202 is provided in the pillar 100, and a screw 211 is rotatably installed in the cavity 202. A limit sleeve 212 is threadedly connected to the screw 211, and a U-shaped frame is fixedly connected to the limit sleeve 212. The support platform 203 is fixed to the U-shaped frame. The limit sleeve 212 and the pillar 100 are slidably connected by a slide groove. The rotation of the screw 211 can drive the limit sleeve 212 to move, and the U-shaped frame moves with the limit sleeve 212. The curved frame will drive the curved plate 201 on the support platform 203 to move, so that the position of the curved plate 201 can be adjusted according to the length of the user's neck so that it contacts the chin. When the user needs to change the intensity of the exercise, the position of the curved plate 201 is adjusted, and the spring 204 can be compressed or extended, and then the position of the curved plate 201 is moved to contact the chin, and then the user's exercise intensity is adjusted. The more the spring 204 is compressed, the more force the chin needs to exercise the curved plate 201. The greater the intensity of the exercise, conversely, the more the spring 204 is stretched, the smaller the intensity of the exercise. By compressing or stretching the spring 204, the user can accurately adjust the intensity of the exercise. This mechanism allows the user to choose the appropriate intensity according to their own exercise goals and physical fitness level, which improves the pertinence of the training.

[0050] Furthermore, a rotating rod is rotatably mounted on the pillar 100 , and meshing bevel gears are mounted on the screw rod 211 and the rotating rod. When a user rotates the rotating rod, the rotating rod drives the screw rod 211 to rotate through the bevel gear, thereby adjusting the position of the arc plate 201 .

[0051] According to the embodiment, when the user blows the fan blade group 303, he not only drives the mechanical device, but also naturally exercises the jaw muscles by opening the mouth, integrating functional training and mechanical movement, and improving the efficiency and interest of training.

[0052] Embodiment 4:

[0053] When the arc plate 201 moves downward, the distance between the transmission wheel 304 and the transmission disk 2073 becomes closer, which causes the transmission rope 305 to become loose. In order to solve the above problem, Figure 4 and Figure 5As shown, on the basis of Example 1, the tensioning assembly 210 includes a limit bar 2101 fixedly connected to the support platform 203, and a rack 2102 is movably installed on the limit bar 2101. The end of the rack 2102 is fixedly connected to a limit frame 2103 for pushing and pulling the transmission rope 305, and the limit frame 2103 is sleeved on the outside of the transmission rope 305. The arc plate 201 moves downward, and the transmission rope 305 becomes loose, while the rack 2102 on the support platform 203 moves outward, and the limit frame 2103 moves with the rack 2102, so that the transmission rope 305 can be tensioned to prevent the transmission rope 305 from becoming loose, so that the user can blow the fan blade group 303 to drive the transmission wheel 304 to rotate after resetting the arc plate 201, and there is no need to reel in more transmission rope 305, which saves the user more effort.

[0054] Specifically, a connecting shaft 2104 is rotatably installed on the support platform 203, and a spur gear 1 2105 meshing with the rack 1 2102 is mounted on the connecting shaft 2104, and a spur gear 2106 is also mounted on the connecting shaft 2104. A rack 2107 meshing with the spur gear 2106 is fixedly connected to the transmission sleeve 2071, and the spur gear 2106 on the support platform 203 moves along with it, and then the spur gear 2106 moves along the rack 2107, which can then drive the connecting shaft 2104 thereon to rotate, and the spur gear 1 2105 rotates along the connecting shaft 2104, and the spur gear 1 2105 rotates to drive the rack 1 2102 to move, thereby driving the limit frame 2103 to move to tension the transmission rope 305. Conversely, when the arc plate 201 moves upward to reset, the limit frame 2103 will also move back to prevent the transmission rope 305 from being over-tensioned.

[0055] It can be known from the above embodiments that: the neck guard 101 is worn on the neck, and then the intensity of the exercise is adjusted according to the needs of the user, and then the arc plate 201 is moved to the chin position, and then the user moves the chin downward to push the arc plate 201, and then the arc plate 201 is reset, and the above steps are repeated to perform resistance training on the chin.

[0056] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0057] 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 chin resistance training device, comprising a support (100), a neck guard (101) being provided on the support (100), characterized in that: The support column (100) is provided with a pressing mechanism (200) for training the chin's resistance through rebound force; The pressing mechanism (200) comprises a support platform (203) mounted on a pillar (100), a second spring (204) being fixedly connected to the support platform (203), a curved plate (201) in contact with the chin being fixedly connected to the second spring (204), a sliding rod (205) being fixedly connected to the curved plate (201) and being slidably connected to the support platform (203), a transmission block (206) being fixedly connected to the end of the sliding rod (205), and a protective component (207) for preventing the curved plate (201) from rebounding being provided on the transmission block (206); The protection component (207) comprises an inclined bar (2076) fixedly connected to the support platform (203), a plurality of staggered limit blocks (2077) fixedly connected to the inclined bar (2076), a transmission sleeve (2071) fixedly connected to the transmission block (206), a clamping block (2075) telescopically mounted on the transmission sleeve (2071), the contact surface of the clamping block (2075) moving from top to bottom with the limit block (2077) is in an arc shape, and the spacing between the plurality of limit blocks (2077) and the clamping block (2075) decreases from top to bottom; The support platform (203) is also provided with a transmission mechanism (300) for driving the arc-shaped plate (201) to reset itself through gas circulation.

2. The chin resistance training device according to claim 1, characterized in that: A transmission disc (2073) is slidably connected inside the transmission sleeve (2071), a connecting rod (2074) slidably connected to the transmission sleeve (2071) is fixedly connected to the transmission disc (2073), a clamping block (2075) is fixedly connected to the connecting rod (2074), and a spring 1 (2072) is fixedly connected between the transmission disc (2073) and the inner wall of the transmission sleeve (2071).

3. The chin resistance training device according to claim 1, characterized in that: The transmission mechanism (300) comprises an air guide cover (301) fixedly connected to a support platform (203), a transmission shaft (302) rotatably mounted in the air guide cover (301), a fan blade group (303) fixedly connected to the transmission shaft (302), and a transmission wheel (304) mounted thereon, a transmission rope (305) for pulling a clamping block (2075) to move fixedly connected to the transmission wheel (304), a guide ring (306) fixedly connected to the transmission sleeve (2071), the transmission rope (305) passing through the guide ring (306) and connected to the transmission disc (2073), and a tensioning assembly (210) for preventing the transmission rope (305) from falling off is provided on the support platform (203).

4. The chin resistance training device according to claim 1, characterized in that: The bottoms of the plurality of limit blocks (2077) are all fixedly connected with stop blocks (2078), and the spacings between the plurality of stop blocks (2078) and the clamping blocks (2075) are all the same.

5. The chin resistance training device according to claim 1, characterized in that: A support sleeve (208) is fixedly connected to the support platform (203), a sliding sleeve (209) slidably connected to the support sleeve (208) is fixedly connected to the bottom of the arc-shaped plate (201), and the second spring (204) is located in the support sleeve (208).

6. The chin resistance training device according to claim 1, characterized in that: The support (100) is provided with a cavity (202), a screw rod (211) is rotatably installed in the cavity (202), a limit sleeve (212) is threadedly connected to the screw rod (211), a U-shaped frame is fixedly connected to the limit sleeve (212), the support platform (203) is fixedly connected to the U-shaped frame, and the limit sleeve (212) and the support (100) are slidably connected via a sliding groove.

7. The chin resistance training device according to claim 6, characterized in that: A rotating rod is rotatably mounted on the support column (100), and bevel gears for meshing transmission are mounted on the screw rod (211) and the rotating rod.

8. The chin resistance training device according to claim 3, characterized in that: The tensioning assembly (210) comprises a limit bar (2101) fixedly connected to the support platform (203), a rack (2102) being movably mounted on the limit bar (2101), a limit frame (2103) for pushing and pulling the transmission rope (305) being fixedly connected to the end of the rack (2102), and the limit frame (2103) is sleeved on the outside of the transmission rope (305).

9. The chin resistance training device according to claim 8, characterized in that: A connecting shaft (2104) is rotatably mounted on the support platform (203), and a spur gear 1 (2105) meshing with a rack 1 (2102) is mounted on the connecting shaft (2104). A spur gear 2 (2106) is also mounted on the connecting shaft (2104), and a rack 2 (2107) meshing with a spur gear 2 (2106) is fixedly connected to the transmission sleeve (2071).

10. The chin resistance training device according to claim 1, characterized in that: The neck guard (101) is composed of two pads, the support column (100) is hinged to the two pads respectively, and the connection between the two pads is connected by a buckle (102).

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