Joint training equipment

Abstract

The present invention provides a joint training device. The device includes a base and an adapter, and multiple pivot members. The first pivot member is pivotally connected to the base, the second pivot member is pivotally connected to the first pivot member, and a locking member is provided on the first pivot member or the second pivot member. When the locking member is in the first position, the second pivot member is in an unlocked state pivotable relative to the first pivot member; when the locking member is in the second position, the second pivot member is in a locked state fixed to the first pivot member. The device enables the adapter to have two motion modes. The patient does not need to switch to different joint training devices, and the various training needs of the patient can be met, thereby improving the versatility of the device. The entire operation process only requires switching the locking member between the first position and the second position, and it can be matched with different locking member matching parts, which saves time and effort. Using one device can meet multiple needs, reduce the occupied space, and facilitate the home use of training equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a joint training device. Background Art

[0002] Currently, limited joint mobility due to various reasons is widespread. To restore motor function, rehabilitation training for the restricted joints is essential. Ankle injuries are common among both athletes and non-athletes, accounting for 21% of all sports injuries and showing an increasing incidence, second only to knee injuries. Clinically, joint training equipment can be used to provide rehabilitation training for patients.

[0003] The ankle joint has a complex anatomy, consisting of the distal tibia and fibula, the talus, and the surrounding ligaments (the deltoid ligament, lateral ligament, and syndesmosis). Postoperative rehabilitation training can promote blood circulation, prevent joint stiffness, and strengthen the muscles surrounding the ankle joint, facilitating rapid recovery and reducing the risk of re-injury.

[0004] However, existing ankle training equipment has relatively simple functions. However, as described above, ankle training involves multiple aspects, such as ankle flexion and extension training to avoid joint stiffness, as well as muscle strength training. This requires patients to switch back and forth between different training devices. Moreover, the more types of training equipment there are, the more space the venue will occupy, resulting in higher costs and making it difficult for training equipment to be used at home. In practice, these may affect the rehabilitation effect. Summary of the Invention

[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a joint training device is provided. The joint training device includes: a base and an adapter; a plurality of pivot members, the plurality of pivot members including a first pivot member and a second pivot member, the first pivot member being pivotally connected to the base about a first axis, the second pivot member being pivotally connected to the first pivot member about a second axis, the first axis being parallel to the second axis, and the adapter being mounted to the second pivot member; and a locking member, the locking member being arranged on the first pivot member or the second pivot member, the locking member being switchable between a first position and a second position, each of the first pivot member and the second pivot member being provided with a locking member engaging portion, wherein when the locking member is in the first position and engages with the locking member engaging portion on the pivot member in which it is located, the second pivot member is in an unlocked state pivotable relative to the first pivot member; and when the locking member is in the second position and engages with the locking member engaging portion on the pivot member in which it is not located, the second pivot member is in a locked state fixed to the first pivot member.

[0006] The joint training device of the present application is provided with a locking member matching portion on both the first pivot member and the second pivot member, and the locking member is matched with different locking member matching portions, so that the first pivot member and the second pivot member can be fixed to each other so that the two can pivot together around the first axis, or the second pivot member can pivot around the second axis while the first pivot member can pivot around the first axis. As a result, the adapter connected to the second pivot member can have two motion modes, thereby providing a variety of different rehabilitation training activities. The joint training device of the present application can meet the patient's various training needs without the patient having to switch to different joint training devices, thereby improving the versatility of the joint training device. Moreover, the entire operation process only requires switching the locking member between the first station and the second station, that is, it can be matched with different locking member matching portions, saving time and effort. Furthermore, the joint training device can meet multiple needs with one device, greatly reducing the space occupied by the site, which is conducive to the home demand for training equipment.

[0007] Exemplarily, the locking member includes a first magnetic member, and each locking member mating portion includes a second magnetic member. When the locking member is mated with any locking member mating portion, the first magnetic member is attracted to the second magnetic member of the corresponding locking member mating portion.

[0008] Exemplarily, the first magnetic member is a permanent magnet, and / or the second magnetic member is a permanent magnet.

[0009] Illustratively, the locking member is pivotally connected to the pivot member on which it is located between the first station and the second station.

[0010] Exemplarily, the first pivot member has a first side and a second side opposite to each other along a first axis, the first side faces the base, the second side faces the second pivot member, and a first accommodating groove is provided on the second side. The locking member is pivotally connected to the first pivot member, and the locking member is completely accommodated in the first accommodating groove when it is in the first position and extends out of the first accommodating groove and cooperates with the locking member mating portion on the second pivot member when it is in the second position.

[0011] Exemplarily, the first receiving groove includes one end of a locking member pivotally connected to the first end of the first receiving groove, and when the locking member is in the first position, there is a gap between the other end of the locking member and the second end of the first receiving groove for inserting a finger.

[0012] Exemplarily, the locking member mating portion on the second pivot member includes a second accommodating groove arranged on the side of the second pivot member, the second accommodating groove passes through the second pivot member along a direction parallel to the first axis, and the locking member engages with the second accommodating groove when it is in the second position.

[0013] Exemplarily, when the locking member is in the second position, it extends out of the second receiving groove in a direction parallel to the first axis.

[0014] Exemplarily, the locking member is provided with a first rotating shaft and a second rotating shaft extending in opposite directions, and the pivot member where the locking member is located is provided with a first mounting groove and a second mounting groove. The joint training device also includes a pressure plate, which is connected to the pivot member where the locking member is located by a threaded fastener, and a third mounting groove and a fourth mounting groove are provided on the surface of the pressure plate. The first mounting groove and the third mounting groove together form a first axial hole, and the second mounting groove and the fourth mounting groove together form a second axial hole. The first rotating shaft and the second rotating shaft are pivotally connected to the first axial hole and the second axial hole respectively.

[0015] Exemplarily, the pressing plate includes a first pressing plate and a second pressing plate on both sides of the locking member, the third mounting groove is provided on the first pressing plate, and the fourth mounting groove is provided on the second pressing plate.

[0016] Exemplarily, a driver is provided on the base, and the driver is connected to the first pivoting member and is used to drive the first pivoting member to pivot around the first axis.

[0017] Exemplarily, a accommodating cavity with an opening is provided on the base, and the driver and the first pivot member are accommodated in the accommodating cavity. The joint training device also includes a cover plate, which covers the opening of the accommodating cavity and is pivotable around a first axis relative to the base. The cover plate is fixed to the first pivot member, and the second pivot member is located on the outside of the cover plate. The cover plate is provided with a through hole for the locking member to pass through when switching between the first position and the second position.

[0018] This summary introduces a series of simplified concepts that will be further described in the detailed description. This summary is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0019] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings of the present invention are hereby incorporated into the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0021] Figure 1 is an axonometric view of a joint training device according to an exemplary embodiment of the present invention;

[0022] Figure 2 for Figure 1 Exploded diagram;

[0023] Figure 3 for Figure 1 An isometric view of one embodiment showing the plurality of pivot members in an unlocked state;

[0024] Figure 4 for Figure 1 An axonometric view of another embodiment showing multiple pivot members in a locked state;

[0025] Figure 5 for Figure 4 a front view of the plurality of pivot members shown;

[0026] Figure 6 for Figure 4 a side view of the plurality of pivot members shown;

[0027] Figure 7 for Figure 5 a cross-sectional view of the plurality of pivot members shown;

[0028] Figure 8 for Figure 4 an axonometric view showing the plurality of pivot members in an unlocked state;

[0029] Figure 9 for Figure 8 a front view of the plurality of pivot members shown;

[0030] Figure 10 for Figure 8 a side view of the plurality of pivot members shown; and

[0031] Figure 11 for Figure 9 Cross-sectional view of the BB.

[0032] The above drawings include the following reference numerals:

[0033] 100. Joint training device; 110. Base; 111. Receiving cavity; 120. Adapter; 130, 130', first pivot member; 131, 131', first receiving slot; 132. Gap; 134. First side; 135. Second side; 136. First mounting slot; 137. Second mounting slot; 140. Second pivot member; 150. Locking member; 151. First magnetic member; 152. First rotating shaft; 153. Second rotating shaft; 160. Locking member mating portion; 161. Second magnetic member; 162. Second receiving slot; 170. Press plate; 171. First pressing plate; 172. Second pressing plate; 173. Fastener; 174. Third mounting slot; 175. Fourth mounting slot; 180. Cover plate; 181. Through hole; 200. Leg support assembly; 300. Seat. DETAILED DESCRIPTION

[0034] In the following description, a large amount of detail is provided to facilitate a thorough understanding of the present invention. However, it will be appreciated by those skilled in the art that the following description merely illustrates preferred embodiments of the present invention, and that the present invention may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well known in the art have not been described in detail.

[0035] According to one aspect of the present invention, a joint training device is provided. The joint training device can enable its adapter to have two movement modes through the cooperation of the locking member and the locking fitting portion. These two movement modes can help patients perform, for example, ankle flexion and extension function training and muscle strength training. Of course, based on the principles to be introduced below, those skilled in the art can also use the joint training device for rehabilitation training of other joints. Figures 1 to 11 The joint training device according to the embodiment of the present application is described.

[0036] like Figure 1 and Figure 2 As shown, the joint training device 100 may include a base 110. The base 110 may be used to support and serve as a mounting carrier for some components of the joint training device 100. The structure of the base 110 may be varied and is not limited here. For example, a driver may be provided on the base 110. The driver may adopt a hydraulic drive, a pneumatic drive, an electrical drive or a mechanical drive mode, which is not limited here. Optionally, the driver may help the patient to perform passive training on the joints, so that the joints can perform continuous movement according to a preset amplitude and speed. During this movement, the pressure on the patient's own muscles and nerves in the relevant parts is reduced, allowing the joints that need rehabilitation to be repeatedly exercised through the designed movement trajectory. According to the principles of bionics, the healing and regeneration of the patient's joint cartilage and the surrounding ligaments and tendons can be accelerated under the action of continuous activity. Optionally, the driver can provide an antagonistic force for the patient's active movement, thereby assisting in muscle strength training.

[0037] The joint training device 100 may further include an adapter 120. The adapter 120 may contact the human body and may be used to fix the joint requiring rehabilitation and / or adjacent portions of the joint. The following description primarily uses the adapter for patient ankle rehabilitation as an example to illustrate the working principle of the joint training device. It should be noted that the adapter of this application is not limited to adapters for ankle joint rehabilitation, but may also be applicable to adapters for other joints requiring rehabilitation, such as knee joints and elbow joints.

[0038] The joint training device 100 may further include a plurality of pivot members. The plurality of pivot members may include a first pivot member 130, such as Figure 2-3As shown. The structure of the first pivot member 130 can be various and is not limited here. Regardless of the structure of the first pivot member 130, the first pivot member 130 can be pivotally connected to the base 110 about the first axis MN. Typically, the first pivot member 130 can be pivotally connected to the base 110 by various known and future connecting members such as fasteners and hinge structures, which are not limited here. In an embodiment in which the adapter 120 is used to fix the patient's foot to train the ankle joint and related limb parts, the first axis MN can be roughly located between the ankle joint and the knee joint, and can be nearly perpendicular to the side of the patient's lower limb. In an embodiment in which the adapter is a wrist joint adapter or other part adapter, the position of the first axis MN can be adjusted accordingly, which is not specifically described here. Exemplarily, a driver can be connected to the first pivot member 130 to drive the first pivot member 130 to pivot about the first axis MN. With such a configuration, the first pivoting member 130 can pivot around the first axis MN under the action of the driver. Under the action of the driver, the joint training device 100 can provide power to the patient during training, facilitating the patient to perform passive training, or provide resistance when the patient performs active training. In some optional embodiments, such as Figure 3 As shown, a convex shaft can be set on the first pivot member 130 (located on the back side of the first pivot member 130 in the figure, not shown in the figure), and the convex shaft can be inserted into the base 110, so that the first pivot member 130 can be pivotally connected to the base 110.

[0039] The plurality of pivot members may further include a second pivot member 140. The structure of the second pivot member 140 may also be varied, which is not limited here. The second pivot member 140 may be pivotally connected to the first pivot member 130 around a second axis OP. The second pivot member 140 may be pivotally connected to the first pivot member 130 using various known and future connection methods, which are not limited here. The second axis OP may be located roughly in the middle of the foot. In an embodiment where the adapter is a wrist adapter or an adapter for other parts, the position of the second axis may be adjusted accordingly, which is not specifically described here. The first axis MN is parallel to the second axis. Typically, during rehabilitation training, the patient usually sits or lies down. In this case, the first axis MN may extend in the horizontal direction, and the second axis OP may also extend in the horizontal direction.

[0040] The adapter 120 can be mounted to the second pivot member 140. This mounting method can employ various known methods in the art, such as threaded connections, snap connections, interference fits, adhesive connections, or other future connection methods, which are not limited herein. As previously mentioned, the second pivot member 140 can be pivotally connected to the first pivot member 130; the first pivot member 130 can be pivotally connected to the base 110. Thus, the adapter 120, second pivot member 140, first pivot member 130, and base 110 can be sequentially connected.

[0041] like Figure 2 As shown, the joint training device 100 may further include a locking member 150. The locking member 150 may be provided on the first pivot member 130 or the second pivot member 140. Regardless of which pivot member the locking member 150 is provided on, the locking member 150 has a first position and a second position. The states of the locking member 150 in the first position and the second position will be described below. The locking member 150 may be switchable between the first position and the second position. The switching method may be various, for example, the locking member 150 may be switched by rotation, translation, telescopic, folding, etc., which are not limited here. In some embodiments, as Figure 3 As shown, the locking member 150 can be disposed on the first pivot member 130, and the locking member 150 can be switched between the first and second positions by rotation. In an embodiment not shown, the locking member 150 can be disposed on the second pivot member 140, and the locking member 150 can be switched between the first and second positions by translation. Regardless of the embodiment, each of the first pivot member 130 and the second pivot member 140 can be provided with a locking member engagement portion 160.

[0042] The structure of the locking member mating portion 160 is diverse, as long as it can mate with the locking member 150, and is not limited here. In some embodiments, the locking member 150 may be a buckle, and the locking member mating portion 160 may be a slot. In other embodiments, the locking member may be a pin, and the locking member mating portion may be a pin hole. The structures of the locking member and the locking member mating portion are numerous and will not be detailed here.

[0043] like Figure 3As shown, when the locking member 150 is in the first position, the locking member 150 cooperates with the locking member engaging portion 160 on the pivot member where it is located, and the second pivot member 140 is in an unlocked state pivotable relative to the first pivot member 130. In the embodiment where the locking member 150 is provided on the first pivot member 130, when the locking member 150 is in the first position, the locking member 150 cooperates with the locking member engaging portion 160 on the first pivot member 130, and the second pivot member 140 is in an unlocked state relative to the first pivot member 130. When the locking member 150 cooperates with the locking member engaging portion 160 on the first pivot member 130, the second pivot member 140 can pivot relative to the first pivot member 130. Figure 2 As shown, the adapter 120 can also pivot relative to the base 110 along with the first pivot member 130 around the first axis MN. At the same time, the adapter 120 can pivot relative to the first pivot member 130 along with the second pivot member 140 around the second axis OP. The joint training device is applicable to the following scenarios: the patient can perform active training through the joint training device 100, the patient's foot is fixed or limited on the adapter 120, and the patient drives the first pivot member 130 to pivot relative to the base 110 around the first axis MN through the strength of the leg muscles. During the exercise, the adapter 120 together with the second pivot member 140 can rotate around the second axis OP to ensure the comfort of the ankle joint. This training is similar to riding a bicycle, and can train muscle strength and ankle joint flexibility at the same time. Of course, this bicycle training can also be passively driven by a driver, or the driver can also provide resistance to the patient.

[0044] When the locking member 150 is in the second position, the locking member 150 engages with the locking member engagement portion 160 on the pivot member that is not in the position, and the second pivot member 140 is locked and fixed with the first pivot member 130. In the embodiment where the locking member 150 is disposed on the first pivot member 130, the pivot member that is not in the position is the second pivot member 140. When the adapter 120 is required to pivot only about the first axis MN, the locking member 150 can be placed in the second position. The locking member 150 engages with the locking member engagement portion 160 on the second pivot member 140, and the second pivot member 140 is locked and fixed with the first pivot member 130. That is, the second pivot member 140 cannot move relative to the first pivot member 130. The adapter 120 can only pivot relative to the base 110 along with the first pivot member 130. At this time, the joint training device 100 can be used in the following scenarios: the driver of the joint training device 100 can help patients perform passive training on their joints. Under the action of the driver, the first pivot member 130 is driven to move. Under normal circumstances, the driver can drive the first pivot member 130 to pivot within a certain angle range. As mentioned above, the first axis MN can be roughly located between the ankle joint and the knee joint. When training, the patient can place his legs on the leg support assembly 200 (for detailed description, see below, as shown in the figure). Figure 1-2 As shown, the first pivot member 130 rotates to change the angle between the calf and the foot, thereby allowing the ankle joint to flex and extend. The aforementioned certain angle range can correspond to the range of ankle joint flexion and extension. This angle range can be set based on the patient's joint limitations. Of course, the user can also place their knee on the leg support assembly 200. This depends on the user's posture or state at the time and is not detailed here.

[0045] In order to ensure the training effect, Figure 1-2 As shown, the joint training device 100 may further include a leg support assembly 200, on which the patient's legs or knees may be supported. The patient may sit on the seat 300. With the knees supported on the leg support assembly 200, the first axis MN may be higher than the leg support assembly 200 in the vertical direction, so that the height difference between the first axis MN and the pivot axis of the patient's knee may be within a predetermined range. Exemplarily, the first axis MN and the pivot axis of the knee may be at almost the same height, such as being at the same height or slightly lower or slightly higher than the pivot axis of the knee. The first pivot member 130 may pivot within an angular range that straightens the patient's legs (referred to as the upper limit position for the sake of convenience) and bends downward (referred to as the lower limit position for the sake of convenience). The lower limit position may be Figure 1 The upper limit position can be Figure 1The first pivot member 130 in the adapter rotates clockwise until the patient's leg is straightened. When the first pivot member 130 is in the upper limit position, the second pivot member 140 is aligned with the patient's knee and hip, allowing the ankle joint to be in a "flexed" position, with the toes curled. When the first pivot member 130 is in the lower limit position, the second pivot member 140 is lower than the patient's knee, allowing the ankle joint to be in an "extended" position, with the toes extended. By adjusting the angle of the adapter 120 relative to the second pivot member 140 and the pivot range of the first pivot member 130, the flexion and extension range of the ankle joint can be changed.

[0046] In other embodiments (not shown), the locking member 150 may be disposed on the second pivot member 140 and switchable between a first position and a second position. When the locking member 150 is in the first position, the locking member 150 engages with the locking member engagement portion on the second pivot member 140, unlocking the second pivot member 140 relative to the first pivot member 130. That is, the second pivot member 140 is pivotable relative to the first pivot member 130. When the locking member 150 is in the second position, the locking member 150 engages with the locking member engagement portion 160 on the first pivot member 130, locking the second pivot member 140 and the first pivot member 130 relative to each other. The adapter 120 can only pivot along with the first pivot member 130 about the first axis MN.

[0047] The joint training device of the present application is provided with a locking member mating portion 160 on both the first pivot member 130 and the second pivot member 140, and the locking member 150 is used to cooperate with different locking member mating portions 160, so that the first pivot member 130 and the second pivot member 140 can be fixed to each other so that they can pivot together about the first axis MN, or the second pivot member 140 can pivot about the second axis OP while the first pivot member 130 can pivot about the first axis MN. As a result, the adapter 120 connected to the second pivot member 140 can have two motion modes, thereby providing a variety of different rehabilitation training activities. The joint training device 100 of the present application can meet the patient's various training needs without the patient having to switch to different joint training devices, thereby improving the versatility of the joint training device 100. Moreover, the entire operation process only requires switching the locking member 150 between the first position and the second position, that is, it can cooperate with different locking member mating portions 160, saving time and effort. Furthermore, joint training equipment can meet multiple needs with just one device, greatly reducing the space occupied by the venue and facilitating the home use of training equipment.

[0048] Figure 4-11 Another embodiment according to the present invention is shown. Figure 1-3The basic principles of the embodiments shown are substantially the same. For example, the locking member 150 can cooperate with the locking member engaging portion 160 on the first pivot member 130' and the second pivot member 140, respectively, so that the second pivot member 140 has a locked state (e.g., Figure 4-7 shown) and unlocked state (as shown) Figure 8-11 ). The main difference lies in the specific structures of the locking member 150 and the locking member matching portion 160, which will be described in more detail below.

[0049] For example, in Figure 2-3 The embodiment shown and Figure 4-11 In the embodiment shown, the locking member 150 may include a first magnetic member 151. The specific setting method may include various methods known in the prior art, such as pasting, clamping, welding, or methods that may appear in the future, which are not limited here. The first magnetic member 151 can be a hard magnet or a soft magnet, which is not limited here. In some optional embodiments, the locking member 150 as a whole can be made of magnetic material to serve as the first magnetic member. Figure 3As shown, each locking member mating portion 160 may include a second magnetic member 161. In the illustrated embodiment, one or more of the two locking member mating portions 160 may include a receiving groove. Taking the second pivot member 140 as an example, a second receiving groove 162 to be described later may be provided, and the second magnetic member 161 may be provided in the second receiving groove 162. In other embodiments not shown, the second receiving groove 162 may not be provided, and the second magnetic member 161 may be embedded in the second pivot member 140 or provided on the surface of the second pivot member 140. When the locking member 150 is mated with any locking member mating portion 160, the first magnetic member 151 is attracted to the second magnetic member 161 of the corresponding locking member mating portion 160. It is understandable that the magnetic poles of the first magnetic member 151 and the second magnetic member 161 of the corresponding locking member mating portion 160 are different. That is, when the locking member 150 is engaged with the locking member mating portion 160 on the first pivot member, the first magnetic member 151 on the locking member 150 is attracted to the second magnetic member 161 of the locking member mating portion 160 on the first pivot member. When the locking member 150 is engaged with the locking member mating portion 160 on the second pivot member 140, the first magnetic member 151 on the locking member 150 is also attracted to the second magnetic member 161 of the locking member mating portion 160 on the second pivot member 140. The number of first magnetic members 151 can be one or more. In some optional embodiments, the first magnetic member 151 can pass through two opposite surfaces of the locking member 150, with one end of the first magnetic member 151 being the N pole and located on the first surface of the locking member 150; the other end of the first magnetic member 151 being the S pole and located on the second surface of the locking member 150 opposite to the first surface. In this case, the second magnetic member 161 on the first pivot member 130 and the second pivot member 140 can have opposite polarities. For example, when the locking member 150 is in the first position and the second pivot member 140 is in the unlocked state, the first surface of the first magnetic member 151 abuts against the first pivot member 130, and the magnetic pole of the second magnetic member 161 of the locking member matching portion 160 on the surface of the first pivot member 130 abutted is the S pole; when the locking member 150 is in the second position and the second pivot member 140 is in the locked state, the second surface of the first magnetic member 151 abuts against the second pivot member 140, and the magnetic pole of the second magnetic member 161 of the locking member matching portion 160 on the surface of the second pivot member 140 abutted is the N pole.

[0050] Normally, the joint training device 100 will generate a certain amount of vibration when in operation. Long-term vibration may cause the locking member 150 and the locking member matching portion 160 to not fit firmly, or even cause the locking member 150 and the locking member matching portion 160 to be instantly separated. By providing magnetic members on the locking member 150 and the locking member matching portion 160, respectively, the locking member 150 and the locking member matching portion 160 can be more firmly matched, so that the unlocking and locking states of the second pivot member 140 relative to the first pivot member 130 are both secure and safe. This avoids the situation where the locking state of the second pivot member 140 relative to the first pivot member 130 suddenly changes to the unlocking state due to loose locking, or the situation where the unlocking state suddenly changes to the locking state. This avoids the sudden change of the training action of the joint training device 100 and the resulting damage to the patient. This improves the safety of the joint training device 100. The locking member 150 and the locking member matching portion 160 are magnetically matched, which makes it very easy for the operator to operate; in addition, the structure of the locking member 150 is simplified, the complicated processing steps are shortened, and the production cost is reduced.

[0051] For example, in some unillustrated embodiments, the locking member 150 may be retractable or foldable, changing its length by retracting or folding, so that the locking member 150 has a first position and a second position. When folded or retracted, the locking member 150 may be in the first position and engage with the locking member engagement portion 160 on the pivot member where it is located. When expanded or extended, the locking member 150 may be in the second position and engage with the locking member engagement portion 160 on the pivot member where it is not located. This structure of the locking member 150 occupies less space.

[0052] For example, in one embodiment, Figure 3 As shown, the first magnetic part 151 can be a permanent magnet. The magnetism of the permanent magnet is natural and permanent, and no additional power or other auxiliary components are required. Moreover, the permanent magnet can be directly processed and set on the locking part 150. With this arrangement, the first magnetic part 151 can be magnetic at any time, and the locking part 150 can have magnetic force at any stage where magnetic force is required, and will not fail due to demagnetization of the first magnetic part 151, which greatly improves the locking reliability of the locking part 150 and the locking part matching part 160. Moreover, the frequency of failure or maintenance of the first magnetic part 151 is reduced, which is equivalent to extending the working time of the joint training device 100.

[0053] For example, Figure 3As shown, the second magnetic member 161 can be a permanent magnet. With this configuration, the second magnetic member 161 maintains magnetism at all times, and the locking member mating portion 160 maintains magnetism at all times, preventing demagnetization of the second magnetic member 161 and causing the locking member 150 to become inoperative. This significantly improves the locking reliability of the locking member 150 and the locking member mating portion 160. Furthermore, the simple structure of the second magnetic member 161 reduces the frequency of malfunction or maintenance required for the second magnetic member 161, further extending the operational life of the joint training device 100.

[0054] Illustratively, locking member 150 is pivotally connected to the pivot member on which it is mounted between the first and second workstations. In some optional embodiments, locking member 150 may be provided with a rotating shaft, and the pivot member on which it is mounted may be provided with an axial hole, so that locking member 150 can be pivotally connected to the pivot member via the rotating shaft. Various pivotal connection methods are available and are not limited here. This arrangement allows for greater flexibility in the movement of locking member 150 relative to the pivot member, simplifies the connection between locking member 150 and the pivot member, and reduces manufacturing costs.

[0055] For example, Figure 2-3 As shown, the first pivot member 130 has a first side 134 and a second side 135 that are opposite to each other along the first axis MN. The first side 134 may face the base 110. The second side 135 may face the second pivot member 140. A first receiving groove 131 may be provided on the second side 135. The locking member 150 may be pivotally connected to the first pivot member 130. Figure 3 As shown, the locking member 150 can be completely accommodated in the first receiving groove 131 when it is in the first position. The structure of the first receiving groove 131 is varied, as long as it can accommodate the locking member 150, and no further limitation is made here. In some optional embodiments, such as Figure 3 As shown, the first receiving groove 131 may have a structure substantially identical to that of the locking member 150. In other embodiments, such as Figure 4As shown, the first receiving groove 131' can have a different structure than the locking member 150, as long as it can accommodate the locking member 150. When the locking member 150 is in the second position, the locking member 150 can extend out of the first receiving groove and engage with the locking member engagement portion 160 on the second pivot member 140. This arrangement, pivotally connecting the locking member 150 to the first pivot member, allows the locking member 150 to be relatively distant from the second pivot member 140 within a certain range, reducing interference factors that need to be considered during design. This prevents the locking member 150 from excessively interfering with the adapter 120, the patient's area secured to the adapter 120, and adjacent areas of the body when exercising with the joint training device 100, and provides more space for the patient's training activities. By providing the first receiving groove 131 on the second side of the first pivot member 130 facing the second pivot member 140, the spatial span of the locking member 150 when switching between the first and second positions can be shortened. Moreover, the locking member 150 is completely accommodated in the first accommodating groove 131 in the first station, so that the locking member 150 will not contact the second pivot member 140 in the first station, avoiding scratching the second pivot member 140; and it also eliminates the need to set an avoidance portion on the second pivot member 140.

[0056] For example, Figure 8 and Figure 9 As shown, the first receiving groove 131' may include a first end and a second end. One end of the locking member 150 may be pivotally connected to the first end (eg, the lower end in the figure) of the first receiving groove 131'. Figure 8As shown, when the locking member 150 is in the first position, a gap 132 is defined between the other end of the locking member 150 (e.g., the upper end in the figure) and the second end of the first receiving slot 131'. Typically, a finger can be inserted into this gap 132. In other words, the spacing between the two ends of the first receiving slot 131' can be greater than the maximum dimension of the locking member 150 along the direction from the first end to the second end. In an embodiment where the first receiving slot 131' is a rectangular slot, the locking member 150 can be rectangular, with one short side of the rectangular slot being the first end and the other short side being the second end (of course, one long side of the rectangular slot can also be the first end and the other long side can be the second end). Thus, by providing the gap 132, a hand can be inserted into the gap 132 and apply force from the other end of the locking member 150, providing a point of force and operating space for operating the locking member 150, making it easier for the operator to apply force to the locking member 150. Furthermore, the end where the gap 132 is located is opposite to the end where the locking member 150 is pivotally connected to the first receiving groove 131'. Based on the principle of leverage, a small force applied to the gap 132 can pry this end of the locking member 150 open. In other words, a small force can be applied to pivot the end of the locking member 150 located at the gap 132 relative to one end of the locking member 150, saving time and effort. This saving of time and effort is particularly significant when the operator is a patient.

[0057] For example, Figure 4 and Figure 8 As shown, the locking member matching portion 160 on the second pivot member 140 may include a second accommodating groove 162. The structure of the second accommodating groove 162 can be various, as long as it can cooperate with the locking member 150. The second accommodating groove 162 can be set on the side of the second pivot member 140. It should be noted that the side here refers to the surface of the second pivot member 140 that roughly surrounds the second axis OP when looking at the second pivot member 140 along the direction of the second axis OP. The second accommodating groove 162 can pass through the second pivot member 140 in a direction parallel to the first axis MN. The locking member 150 can be engaged with the second accommodating groove 162 when it is in the second working position. When the locking member 150 is engaged with the second accommodating groove 162, the second pivot member 140 is in a locked state relative to the first pivot member 130, and the two do not have relative movement. Thus, by providing the second receiving groove 162, the locking member 150 engages more securely with the second receiving groove 160 when the first pivoting member 130 pivots relative to the base 110, providing a more reliable locking mechanism. Furthermore, the second receiving groove 162 simplifies the structure of the locking member engaging portion 160 on the second pivoting member 140, facilitating fabrication. Furthermore, the presence of the second receiving groove 162 provides a wider operating area near the side, further facilitating fabrication.

[0058] For example, Figure 4 and Figure 6 As shown, when the locking member 150 is in the second position, it can extend out of the second receiving groove 162 in a direction parallel to the first axis MN. With this arrangement, the operator can use the portion of the locking member 150 extending out of the second receiving groove 162 as a fulcrum to operate the locking member 150, further facilitating the switching of the locking member 150 from the second position to the first position.

[0059] For example, Figure 7 and Figure 11 As shown, the locking member 150 may be provided with a first rotating shaft 152 and a second rotating shaft 153. The first rotating shaft 152 and the second rotating shaft 153 may extend in opposite directions. The first rotating shaft 152 and the second rotating shaft 153 may be connected together or independent of each other, which is not limited here. In some optional embodiments, the first rotating shaft 152 and the second rotating shaft 153 may be an integral structure. The pivot member on which the locking member 150 is located may be provided with a first mounting slot 136 and a second mounting slot 137. The joint training device 100 may also include a pressure plate 170. The pressure plate 170 may be connected to the pivot member on which the locking member 150 is located via a fastener 173. A third mounting slot 174 and a fourth mounting slot 175 may also be provided on the surface of the pressure plate 170. The first mounting slot 136 and the third mounting slot 174 may together form a first axial hole. The second mounting slot 137 and the fourth mounting slot 174 may together form a second axial hole. The first rotating shaft 152 may be pivotally connected to the first axial hole. The second rotating shaft 153 can be pivotally connected to the second axial hole. The pressure plate 170 can also be provided with an avoidance portion for avoiding the locking member 150 when pivoting. The avoidance portion can match the structure of the portion of the locking member 150 that interferes with the pressure plate 170. When installing the locking member 150 to the corresponding pivot member, the first rotating shaft 152 and the second rotating shaft 153 are first placed in the first mounting groove 136 and the second mounting groove 137 respectively, and then the third mounting groove 174 of the pressure plate 170 is aligned with the first mounting groove 136 and the fourth mounting groove 175 is aligned with the second mounting groove 137. Finally, the pressure plate 170 is connected to the pivot member where the locking member 150 is located by a fastener 173 such as a screw. In this way, the first axial hole formed by the encirclement can be used to support and limit the first rotating shaft 152, and the second axial hole formed by the encirclement can be used to support and limit the second rotating shaft 153. Thus, the joint training device of the present application, by providing the structure of the pressure plate 170 and the mounting slot, does not require the operator (e.g., a worker) to repeatedly calibrate the hole positions during installation, and can simply and quickly connect the locking member 150 to the pivot member. Furthermore, during installation, the operator has a better installation viewing angle, and there is no need to open an excessively long through hole in the pivot member, thereby damaging the pivot member, thereby improving the strength of the pivot member on which the locking member 150 is located.

[0060] For example, Figure 4、 Figure 5 、 Figure 7 、 Figure 9 and Figure 11 As shown, the pressure plate 170 may include a first pressure plate 171 and a second pressure plate 172. The first pressure plate 171 and the second pressure plate 172 may be located on either side of the locking member 150, respectively. A third mounting groove 174 may be provided on the first pressure plate 171. A fourth mounting groove 175 may be provided on the second pressure plate 172. With such a configuration, the space through which the locking member 150 of the present application pivots may not require a pressure plate, that is, the first pressure plate 171 and the second pressure plate 172 may be spaced apart, and the spaced apart space is used to avoid the locking member 150, without the need to specifically provide a structure for avoiding the locking member 150 on the entire pressure plate 170. In this way, the first pressure plate 171 and the second pressure plate 172 do not need to be processed with a structure that is compatible with the locking member 150, and the structures of the first pressure plate 171 and the second pressure plate 172 are simpler, easier to process, and have lower manufacturing costs.

[0061] For example, Figure 2 As shown, a accommodating cavity 111 may be provided on the base 110. The accommodating cavity 111 has an opening. The driver and the first pivot member 130 may be accommodated in the accommodating cavity 111. The driver serves as the source of power for the joint training device 100. When the driver fails, the joint training device 100 cannot operate normally, so the driver is protected to a certain extent. The joint training device 100 may further include a cover 180. The cover 180 may cover the opening of the accommodating cavity 111. The cover 180 may be pivotable around the first axis MN relative to the base 110. The cover 180 may be fixed to the first pivot member. The second pivot member 140 may be located on the outside of the cover 180. A through hole 181 may be provided on the cover 180. The locking member 150 may pass through the through hole 181 when switching between the first station and the second station. For example, when the locking member 150 is arranged on the first pivot member 130, the locking member 150 can pass through the through hole 181 to cooperate with the locking member matching portion 160 on the second pivot member 140. In this way, the accommodating chamber 111 can provide a fixed placement space for the driver and the first pivot member 130. The cover 180 can, to a certain extent, prevent foreign objects from falling into or hitting the driver and the first pivot member 130 through the opening of the accommodating chamber 111, which is equivalent to protecting the driver and the first pivot member 130. Moreover, the cover 180 can isolate the driver from the patient, and can prevent the driver from scratching the patient's body when the driver is running or the first pivot member is pivoting, thereby improving the operational safety of the joint training device 100. In addition, the through hole 181 on the cover 180 can also ensure that the movement of the locking member 150 is not restricted, and provide the required installation and avoidance position for the connection between the first pivot member 130 and the second pivot member 140.

[0062] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0063] For ease of description, area-relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that area-relative terms include not only the orientation of the components as described in the figures, but also different orientations in use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0064] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0065] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0066] The present invention has been described through the above-described embodiments. However, it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A joint training device, characterized in that: The joint training device comprises: docking stations and adapters; a plurality of pivot members, the plurality of pivot members including a first pivot member pivotally connected to the base about a first axis and a second pivot member pivotally connected to the first pivot member about a second axis, the first axis being parallel to the second axis, the adapter being mounted to the second pivot member; and and a locking member, wherein the locking member is arranged on the first pivot member or the second pivot member, the locking member is switchable between a first position and a second position, and a locking member engaging portion is provided on each of the first pivot member and the second pivot member, the locking member is pivotally connected to the pivot member on which it is located between the first position and the second position, the first pivot member having a first side and a second side opposite to each other along the first axis, the first side facing the base, the second side facing the second pivot member, a first receiving groove being provided on the second side, the locking member is pivotally connected to the first pivot member, the locking member is completely accommodated in the first receiving groove when in the first position, and extends out of the first receiving groove to engage with the locking member engaging portion on the second pivot member when in the second position; In which, when the locking member is in the first position and cooperates with the locking member matching part on the pivot member where it is located, the second pivot member is in an unlocked state that can be pivoted relative to the first pivot member; and when the locking member is in the second position and cooperates with the locking member matching part on the pivot member that it is not in, the second pivot member is in a locked state that is fixed with the first pivot member.

2. The joint training device according to claim 1, characterized in that: The locking member includes a first magnetic member, and each locking member matching portion includes a second magnetic member. When the locking member matches with any locking member matching portion, the first magnetic member is attracted to the second magnetic member of the corresponding locking member matching portion.

3. The joint training device according to claim 2, characterized in that: The first magnetic component is a permanent magnet, and / or the second magnetic component is a permanent magnet.

4. The joint training device according to claim 1, characterized in that: The first receiving groove includes one end of the locking member pivotally connected to the first end of the first receiving groove, and when the locking member is in the first position, there is a gap between the other end of the locking member and the second end of the first receiving groove for inserting a finger.

5. The joint training device according to claim 1, characterized in that: The locking member mating portion on the second pivot member includes a second accommodating groove arranged on the side of the second pivot member, and the second accommodating groove passes through the second pivot member along a direction parallel to the first axis. When the locking member is in the second position, it engages with the second accommodating groove.

6. The joint training device according to claim 5, characterized in that: When the locking member is in the second position, the locking member extends out of the second receiving groove in a direction parallel to the first axis.

7. The joint training device according to claim 1, characterized in that: The locking member is provided with a first rotating shaft and a second rotating shaft extending in opposite directions, and the pivot member where the locking member is located is provided with a first mounting slot and a second mounting slot. The joint training device also includes a pressure plate, which is connected to the pivot member where the locking member is located by a threaded fastener, and a third mounting slot and a fourth mounting slot are provided on the surface of the pressure plate. The first mounting slot and the third mounting slot together form a first axial hole, and the second mounting slot and the fourth mounting slot together form a second axial hole. The first rotating shaft and the second rotating shaft are pivotally connected to the first axial hole and the second axial hole respectively.

8. The joint training device according to claim 7, characterized in that: The pressing plate includes a first pressing plate and a second pressing plate on both sides of the locking member, the third mounting groove is provided on the first pressing plate, and the fourth mounting groove is provided on the second pressing plate.

9. The joint training device according to claim 1, characterized in that: A driver is provided on the base, and the driver is connected to the first pivoting member and is used for driving the first pivoting member to pivot around the first axis.

10. The joint training device according to claim 9, characterized in that: The base is provided with a receiving cavity with an opening, and the driver and the first pivoting member are received in the receiving cavity. The joint training device also includes a cover plate, which covers the opening of the accommodating cavity and is pivotable around the first axis relative to the base. The cover plate is fixed to the first pivot member, the second pivot member is located on the outside of the cover plate, and the cover plate is provided with a through hole for the locking member to pass through when switching between the first station and the second station.

Images