Pneumatic rehabilitation gloves and airbag connection device thereof

Abstract

The present invention provides a pneumatic rehabilitation glove and an airbag connecting device thereof, and relates to the field of airbag connecting devices. The airbag connecting device of the pneumatic rehabilitation glove comprises a first joint, a second joint and a locking device. A first air pipe is arranged in the first joint, and a second air pipe is arranged in the second joint. The locking device is used to lock the first joint and the second joint so that the first air pipe is connected to the second air pipe. The locking device comprises a first locking mechanism and a second locking mechanism. The first locking mechanism is used to buckle and lock the first joint and the second joint. The second locking mechanism is used to plug and lock the first joint and the second joint when the first air pipe is under positive pressure and / or negative pressure. By doubly locking the first joint and the second joint, the safety reliability of the locking is improved, and the potential safety hazard is small.

Description

Technical Field

[0001] The present invention relates to the field of airbag connecting devices, and in particular to a pneumatic rehabilitation glove and an airbag connecting device thereof. Background Art

[0002] The pneumatic joint intelligent rehabilitation system uses air as power to automatically drive passive training of joints such as fingers and wrists. It can effectively reduce muscle tension, improve blood circulation, relieve joint edema and increase joint mobility. It can also reflect brain nerves through training and motor imagery to promote brain nerve rehabilitation. It is currently the most effective rehabilitation treatment equipment for symptoms such as finger spasms and paralysis. It is widely used in limb dysfunction caused by central nervous system injuries such as stroke, cerebral palsy, cerebral thrombosis, spinal cord injury, limb dysfunction caused by peripheral nerve injuries such as orthopedic surgery and trauma, swelling after limb injury, including pre- and post-operative movement and stillness, swelling and pain caused by poor venous blood circulation and poor lymphatic return, etc.

[0003] Existing pneumatic rehabilitation gloves use an air tube to directly insert into the airbag connector corresponding to each finger on the back of the glove, and finger training is achieved by inflating and deflating the airbag. During the process of inflating the airbag, the air tube in a positive pressure state is prone to a loose connection with the airbag connector, causing the air tube to detach from the airbag connector and injure the patient or other personnel, posing a high safety hazard and affecting the training efficiency of the pneumatic rehabilitation gloves. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, the present application provides a pneumatic rehabilitation glove and an airbag connecting device thereof.

[0005] In a first aspect, the present application provides an airbag connection device for a pneumatic rehabilitation glove, comprising: a first joint, a second joint and a locking device, wherein a first air pipe is arranged in the first joint, and a second air pipe is arranged in the second joint, and the locking device is used to lock the first joint and the second joint so that the first air pipe is connected to the second air pipe, and the locking device comprises a first locking mechanism and a second locking mechanism, the first locking mechanism is used to buckle and lock the first joint and the second joint, and the second locking mechanism is used to plug and lock the first joint and the second joint when the first air pipe is under positive pressure and / or negative pressure.

[0006] In combination with the first aspect, in a possible embodiment, the second locking mechanism includes: a fixed block, an elastic locking pin assembly and a guide assembly, the fixed block is arranged on the second joint, a cavity, a pipeline and a slide groove are arranged in the fixed block, a branch pipe is arranged in the pipeline, one end of the pipeline is connected between the first gas pipe and the second gas pipe, and the other end is communicated with the cavity, one end of the branch pipe is connected between the first gas pipe and the second gas pipe through the pipeline, and the other end is communicated with the cavity, a locking hole is arranged on the first joint, the slide groove is arranged opposite to the locking hole, the slide groove is connected to the cavity from the bottom of the cavity, the guide assembly is used to control the gas to enter the cavity from the pipeline, and flow out of the cavity from the branch pipe, the top end of the elastic locking pin assembly is arranged in the cavity, the bottom end is arranged in the slide groove, and the bottom end is inserted into the locking hole when the first gas pipe is under positive pressure or negative pressure.

[0007] In combination with the first aspect, in a possible embodiment, the guide assembly includes: the guide assembly includes: a first arc-shaped member and a second arc-shaped member, the first arc-shaped member is arranged in the pipe at one end close to the cavity, the first arc-shaped member is used to control the gas to flow from the pipe into the cavity, the second arc-shaped member is arranged in the branch pipe, and the second arc-shaped member is used to control the gas to flow out of the cavity.

[0008] In combination with the first aspect, in a possible embodiment, the elastic locking pin assembly includes a tympanic membrane and a locking pin, the tympanic membrane is connected to the cavity, the tympanic membrane divides the cavity into a positive pressure chamber connected to the pipeline and a negative pressure chamber connected to the branch pipe, one end of the locking pin is connected to the tympanic membrane, and the other end is arranged in the slide groove, the tympanic membrane is used to push the locking pin when the first air pipe is under positive pressure or negative pressure, so that the locking pin is inserted into the lock hole.

[0009] In combination with the first aspect, in a possible embodiment, the second locking mechanism includes a first pneumatic locking component and a second pneumatic locking component, the first pneumatic locking component is used to lock the first joint and the second joint when the first gas pipe is under positive pressure, and the second pneumatic locking component is used to lock the first joint and the second joint when the first gas pipe is under negative pressure.

[0010] In combination with the first aspect, in a possible embodiment, the first pneumatic locking assembly includes: a first fixed block and a first elastic locking pin assembly, the first fixed block is arranged on the second joint, a first cavity, a first pipe and a first slide groove are arranged in the first fixed block, one end of the first pipe is connected between the first air pipe and the second air pipe, and the other end is connected to the first cavity, a first locking hole is arranged on the first joint, the first slide groove is arranged opposite to the first locking hole, the first slide groove is connected to the first cavity from the bottom of the first cavity, the first elastic locking pin assembly includes a first tympanic membrane and a first locking pin, the first tympanic membrane is connected to the cavity, the first tympanic membrane divides the first cavity into a positive pressure cavity connected to the first pipe and a first air cavity connected to the first slide groove, one end of the first locking pin is connected to the first tympanic membrane, and the other end is arranged in the first slide groove, the first tympanic membrane is used to push the first locking pin when the first air pipe is under positive pressure, so that the first locking pin is inserted into the first locking hole.

[0011] In combination with the first aspect, in a possible embodiment, the second pneumatic locking assembly includes: a second fixed block and a second elastic locking pin assembly, the second fixed block is arranged on the second joint, a second cavity, a second pipeline and a second slide groove are arranged in the second fixed block, one end of the second pipeline is connected between the first air pipe and the second air pipe, and the other end is connected to the second cavity, a second locking hole is arranged on the first joint, the second slide groove is arranged opposite to the second locking hole, and the second slide groove is connected to the second cavity from the bottom of the second cavity, and the second elastic locking pin assembly includes: a second eardrum and a second locking pin, the second eardrum is connected to the second cavity, the second eardrum divides the second cavity into a negative pressure cavity connected to the second pipeline and a second air cavity in a relative position to the negative pressure cavity, one end of the second locking pin is connected to the second eardrum, and the other end is arranged in the second slide groove, the second eardrum is used to push the second locking pin when the first air pipe is under negative pressure, so that the second locking pin is inserted into the second locking hole.

[0012] In combination with the first aspect, in a possible implementation manner, the first pneumatic locking component and the second pneumatic locking component are arranged opposite to each other.

[0013] In combination with the first aspect, in a possible embodiment, the first locking mechanism includes: a lock catch, a lock hook and a spring, the lock catch is arranged on the second joint, the lock hook is rotatably connected to the first joint, the spring is arranged between the handle end of the lock hook and the first joint, and the lock hook end of the lock hook is used to buckle on the lock catch to lock the first joint and the second joint.

[0014] In a second aspect, the present application provides a pneumatic rehabilitation glove, comprising the above-mentioned airbag connecting device of the pneumatic rehabilitation glove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the airbag connection device of the pneumatic rehabilitation glove provided in the present application, the first locking mechanism and the second locking mechanism can simultaneously lock the first joint and the second joint. The first joint and the second joint are doubly locked by the first locking mechanism and the second locking mechanism, thereby improving the firmness of the connection between the first joint and the second joint and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The overall structural schematic diagram of the airbag connection device of the pneumatic rehabilitation gloves is shown;

[0019] Figure 2 A schematic cross-sectional structure diagram of a second locking mechanism of an airbag connecting device of a pneumatic rehabilitation glove is shown;

[0020] Figure 3 A partial structural schematic diagram of a first locking mechanism of an airbag connecting device of a pneumatic rehabilitation glove is shown;

[0021] Figure 4 A schematic diagram showing the connection of the sealing rubber ring of the airbag connection device of the pneumatic rehabilitation glove is shown;

[0022] Figure 5 A schematic cross-sectional view of a first joint of an airbag connecting device of a pneumatic rehabilitation glove is shown;

[0023] Figure 6 A schematic cross-sectional structure diagram of a second joint of an airbag connecting device of a pneumatic rehabilitation glove is shown;

[0024] Figure 7 A schematic cross-sectional structure diagram showing the locking hook and the locking buckle of the airbag connecting device of the pneumatic rehabilitation glove are fastened together;

[0025] Figure 8 A schematic diagram showing the locking hook and the locking buckle of the airbag connecting device of the pneumatic rehabilitation glove are fastened together;

[0026] Fig. 9An enlarged schematic diagram showing the locking hook and the locking buckle of the airbag connecting device of the pneumatic rehabilitation glove are completely fastened;

[0027] Fig.10 An enlarged schematic diagram of a second locking mechanism of the airbag connecting device of the pneumatic rehabilitation glove is shown;

[0028] Fig.11 A schematic cross-sectional view showing the tympanic membrane of the airbag connection device of the pneumatic rehabilitation glove when the tympanic membrane is in the natural position;

[0029] Fig.12 A schematic cross-sectional view of the tympanic membrane of the airbag connection device of the pneumatic rehabilitation glove when the tympanic membrane is indented;

[0030] Fig.13 A schematic cross-sectional structure diagram of a first pneumatic locking mechanism of an airbag connecting device of a pneumatic rehabilitation glove is shown;

[0031] Fig.14 A schematic cross-sectional view showing a first eardrum of an airbag connection device of a pneumatic rehabilitation glove when the first eardrum is in a natural position;

[0032] Fig.15 A schematic cross-sectional view of a first eardrum of an airbag connection device of a pneumatic rehabilitation glove when the first eardrum is indented;

[0033] Fig.16 A schematic cross-sectional structure diagram of a second pneumatic locking mechanism of an airbag connecting device of a pneumatic rehabilitation glove is shown;

[0034] Fig.17 A cross-sectional schematic diagram showing a second eardrum of the airbag connection device of the pneumatic rehabilitation glove when the second eardrum is in a natural position;

[0035] Fig.18 A schematic cross-sectional view showing a second eardrum of an airbag connection device of a pneumatic rehabilitation glove when the second eardrum is indented;

[0036] Fig.19 A schematic structural diagram of a connecting ring of an airbag connecting device of a pneumatic rehabilitation glove is shown.

[0037] Description of main component symbols:

[0038] 100-first joint; 110-first gas pipe; 200-second joint; 210-second gas pipe; 300-first locking mechanism; 310-locking buckle; 311-first inclined plane; 312-second inclined plane; 320-lock hook; 321-lock hook end; 322-handle end; 323-pressing area; 330-spring; 340-limiting block; 350-connecting plate; 400-second locking mechanism; 410-fixing block; 411-first fixing block; 412-second fixing block; 420-cavity; 421-first cavity; 422-second cavity; 430-pipeline; 431-first pipeline; 432-second pipeline; 440-branch pipe; 450-slide groove; 451-first slide groove; 452-second slide groove; 460-tympanic membrane; 461-first tympanic membrane; 462-second tympanic membrane; 470-locking pin; 471-first locking pin; 472-second locking pin; 480-locking hole; 481-first locking hole; 482-second locking hole; 490-guide assembly; 491-first arc-shaped member; 492-second arc-shaped member; 500-air hole; 600-first gap; 610-second gap; 620-third gap; 630-first opening; 640-second opening; 700-sealing rubber ring; 800-connecting ring; 910-rib; 920-slot. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] Embodiment 1

[0045] See also Figure 1 The present embodiment provides an airbag connecting device of a pneumatic rehabilitation glove, comprising: a first joint 100, a second joint 200 and a locking device. A first air pipe 110 is arranged in the first joint 100, and the first air pipe 110 is five and arranged in parallel. A second air pipe 210 is arranged in the second joint 200, and the second air pipe 210 is five and arranged in parallel. The second joint 200 connects the second air pipes 210. The diameter of the first air pipe 110 is smaller than the diameter of the second air pipe 210. The locking device is used to lock the first joint 100 and the second joint 200, so that one end of the first air pipe 110 is connected to the air source, and the other end is connected to the second air pipe 210, and the second air pipe 210 is connected to the airbag. The airbag is connected to the glove, and the airbag is used to drive the fingers in the glove for rehabilitation training.

[0046] See also Figure 3 and Figure 6In this embodiment, a rib 910 is connected between two adjacent first gas pipes 110. A slot 920 is connected between two adjacent second gas pipes 210. The rib 910 and the slot 920 are arranged opposite to each other, and the rib 910 and the slot 920 match each other. The rib 910 is used to be snapped into the slot 920. In order to prevent the first gas pipe 110 from being inserted into the corresponding second gas pipe 210, which may cause the thumb and little finger to move incorrectly during training, the length of one of the ribs 910 is less than the lengths of the other three ribs 910.

[0047] Please refer to 4. In this embodiment, the airbag connection device of the pneumatic rehabilitation glove further includes: a sealing rubber ring 700. The sealing rubber ring 700 is arranged at one end where the first air pipe 110 and the second air pipe 210 are connected, which can increase the friction force of the connection end between the first air pipe 110 and the second air pipe 210, and can also enhance the air tightness of the connection end between the first air pipe 110 and the second air pipe 210.

[0048] In this embodiment, the locking device includes a first locking mechanism 300 and a second locking mechanism 400. The first locking mechanism 300 connects the first connector 100 and the second connector 200. The second locking mechanism 400 connects the first connector 100 and the second connector 200.

[0049] See also Figures 3 to 8In this embodiment, the first locking mechanism 300 includes: a lock buckle 310, a lock hook 320, a spring 330, a limit block 340 and a connecting plate 350. The lock buckle 310 is connected to the end of the second joint 200 away from the airbag, and the lock buckle 310 is arranged in parallel with the second air supply pipe 210. There are two lock buckles 310 arranged opposite to each other. The two lock buckles 310 are respectively arranged on the corresponding side of the second joint 200. The limit block 340 is connected to the first joint 100, and the limit block 340 is arranged opposite to the lock buckle 310. There are two limit blocks 340 arranged opposite to each other, and the limit block 340 is arranged parallel to the first air supply pipe 110. The connecting plate 350 connects the first joint 100 and the limit block 340. There are two connecting plates 350 arranged opposite to each other, and the two connecting plates 350 are respectively connected to the corresponding limit blocks 340 of the first joint 100. The lock hook member 320 includes a handle end 322 and a lock hook end 321. The handle end 322 is arranged in parallel with the first gas pipe 110, the bottom of the handle end 322 is placed on the limit block 340, and the side of the handle end 322 is rotatably connected to the connecting plate 350. The spring 330 is arranged perpendicular to the first gas pipe 110, the spring 330 connects the handle end 322 and the first joint 100, and the spring 330 is arranged on the side of the connecting plate 350 away from the limit block 340.

[0050] See also Fig. 9 In this embodiment, the lock buckle 310 is a protrusion, and a first inclined surface 311 and a second inclined surface 312 are provided on the lock buckle 310. The first inclined surface 311 is connected to the second inclined surface 312, and one end of the first inclined surface 311 close to the airbag is higher than the other end.

[0051] In this embodiment, the handle end 322 is connected to the connecting plate 350 via a pin.

[0052] In this embodiment, each of the first gas delivery pipes 110 is inserted into the corresponding second gas delivery pipe 210. During the process of inserting the first gas delivery pipe 110 into the corresponding second gas delivery pipe 210, the first contact surface of the locking hook end 321 moves along the first inclined surface 311 of the protrusion. The first contact surface is an inclined surface, and the inclination of the first contact surface is the same as the inclination of the first inclined surface 311. During the movement, the locking hook end 321 rotates around the pin shaft, and the spring 330 is in a compressed state. When the locking hook end 321 moves to the second contact surface and contacts the second inclined surface 312, the locking hook end 321 and the lock buckle 310 are buckled, so that the first joint 100 and the second joint 200 are in a buckled and locked state. The second contact surface is an inclined surface, and the inclination of the second contact surface is equal to the inclination of the second inclined surface 312. After the first connector 100 and the second connector 200 are buckled and locked, the gas source inflates the airbag. When the airbag is under positive pressure, the second air pipe 210 tends to separate from the first air pipe 110, and the second contact surface and the second inclined surface 312 are buckled with each other to increase the reliability of locking.

[0053] In this embodiment, the airbag connection device of the pneumatic rehabilitation glove further includes an indication area. The indication area is disposed on the first joint 100 and the second joint 200 , and is used to indicate the plugging direction of the first air supply pipe 110 and the second air supply pipe 210 .

[0054] See also Figure 3 In this embodiment, the handle end 322 further includes a pressing area 323. The pressing area 323 is arranged on the end of the handle end 322 close to the gas source. The pressing area 323 is a finger-shaped groove, which improves the comfort of pressing. When the handle end 322 is pressed in a direction close to the first gas delivery pipe 110, the locking hook rotates around the pin axis in a direction away from the second inclined surface 312, and the locking hook and the lock buckle 310 are unlocked.

[0055] See also Figure 2 and Fig.10In this embodiment, the second locking mechanism 400 includes: a fixed block 410, an elastic locking pin assembly and a guide assembly 490. The fixed block 410 is connected to the second joint 200, and a cavity 420, a pipe 430, a branch pipe 440 and a slide groove 450 are arranged in the fixed block 410. The fixed block 410 is connected to the second joint 200, and the fixed block 410 is prismatic. The cavity 420 is arranged at one end of the fixed block 410 away from the airbag, and the cavity 420 is cylindrical, and a clamping groove is arranged in the cavity 420. One end of the pipe 430 is connected between the first gas pipe 110 and the second gas pipe 210, and the other end is communicated with the cavity 420. One end of the branch pipe 440 is connected between the first gas pipe 110 and the second gas pipe 210 through the pipe 430, and the other end is communicated with the cavity 420. A lock hole 480 is arranged on the first joint 100. The slide slot 450 is disposed opposite to the lock hole 480 , and the slide slot 450 is connected to the cavity 420 from the bottom of the cavity 420 . The opening end of the lock hole 480 is located at one end close to the slide slot 450 .

[0056] See also Figure 11 to Figure 12 In this embodiment, the elastic locking pin assembly includes: a drum 460 and a locking pin 470. The drum 460 is an arc-shaped drum, and the drum 460 is made of a soft material. The edge of the drum 460 is fixed in the clamping groove. One end of the locking pin 470 is connected to the drum 460, and the other end extends into the slide groove 450.

[0057] In this embodiment, one end of the branch pipe 440 is connected to the pipe 430, and the other end is connected to the cavity 420. The branch pipe 440 is arranged in parallel with the second gas delivery pipe 210. The eardrum 460 is located above the branch pipe 440. The eardrum 460 is an arc-shaped eardrum that protrudes away from the branch pipe 440. The eardrum 460 divides the cavity 420 into two upper and lower cavities that are not connected to each other. The eardrum 460 divides the cavity 420 into a positive pressure cavity connected to the pipe 430 and a negative pressure cavity connected to the branch pipe 440.

[0058] In this embodiment, the guide assembly 490 includes: a first arc-shaped member 491 and a second arc-shaped member 492. The first arc-shaped member 491 is disposed in the pipe 430 at one end close to the cavity 420, and the first arc-shaped member 491 is used to control the gas in the pipe 430 to flow from the pipe 430 into the cavity 420. The second arc-shaped member 492 is disposed in the branch pipe 440, and the second arc-shaped member 492 is used to control the gas in the cavity 420 to flow out of the branch pipe 440.

[0059] In this embodiment, the first arc-shaped member 491 is in the shape of a spherical crown with a slit in the middle. The first arc-shaped member 491 protrudes toward the direction close to the cavity 420, and its edge is reinforced with a circle of circular rings for easy installation. The edge becomes gradually thinner toward the middle, with an edge thickness of 0.5-2 mm and a middle thickness of about 0.1-0.5 mm, so that the gas can only flow into the cavity 420 through the first arc-shaped member 491, and cannot flow from the cavity 420 to the pipe 430. The structure of the first arc-shaped member 491 with thick edges and thin middle ensures that the airflow can be opened quickly without pressure loss, can be closed quickly and reliably in the reverse direction, and can withstand a certain reverse pressure. The second arc-shaped member 492 has the same structure as the first arc-shaped member 491. The second arc-shaped member 492 is arranged opposite to the first arc-shaped member 491. The second arc-shaped member 492 protrudes in the direction away from the cavity 420, so that the gas in the branch pipe 440 cannot flow from the second arc-shaped member 492 into the cavity 420. The gas in the cavity 420 can only flow from the cavity 420 into the pipe 430.

[0060] In other embodiments, the first arc-shaped member 491 is a one-way valve disposed in the pipeline 430 , and the second arc-shaped member 492 is a one-way valve disposed in the branch pipe 440 .

[0061] See also Fig.12 When the gas source just starts to inflate the airbag, a small amount of gas in the gas source enters the first gas pipe 110, a small amount of gas in the first gas pipe 110 first enters the pipe 430, and the remaining gas enters the airbag through the second gas pipe 210, so that the airbag is in a positive pressure state until the airbag reaches a certain air pressure to drive the fingers to perform fist rehabilitation training. The gas flow rate entering the pipe 430 is less than the gas flow rate entering the airbag, and part of the gas entering the pipe 430 can only pass through the first arc Component 491 enters the cavity 420, and part of the gas entering the cavity 420 presses on the eardrum 460 in the direction close to the slide groove 450. Under the pressure of the gas, the protruding part of the eardrum 460 sinks inward in the direction close to the slide groove 450, thereby pushing the locking pin 470 to be inserted into the locking hole 480. The locking pin 470 can be automatically inserted into the locking hole 480 when the gas source starts to inflate the airbag, and can quickly lock the first connector 100 and the second connector 200, thereby improving the reliability of locking and having high safety.

[0062] See also Fig.12In the present embodiment, when the gas source draws air from the airbag so that the airbag is under negative pressure, the gas in the airbag enters the first air pipe 110 through the second air pipe 210 and is drawn out for rehabilitation training operations, and the gas in the negative pressure cavity between the eardrum 460 and the slide groove 450 is pressurized and discharged from the cavity 420 into the branch pipe 440, and flows from the second arc-shaped member 492 to the first air pipe 110 and is drawn out. In the process of the gas in the negative pressure cavity being discharged into the branch pipe 440, the eardrum 460 is pressurized and sinks inward toward the slide groove 450, thereby pushing the locking pin 470 to be inserted into the locking hole 480, which can automatically lock the first joint 100 and the second joint 200 when the airbag is under negative pressure.

[0063] In this embodiment, the number of the second locking mechanisms 400 is 1 to 10.

[0064] See also Fig.10 In this embodiment, the airbag connection device of the pneumatic rehabilitation glove further includes: an air hole 500. The air hole 500 is provided on the cavity 420, and the air hole 500 is located above the eardrum 460. The air hole 500 is used for convection between the positive pressure cavity between the eardrum 460 and the pipe 430 and the external air. The gas flow through the air hole 500 is much smaller than the flow of the gas source.

[0065] See also Fig.10 In this embodiment, there is a first gap 600 between the slide slot 450 and the lock hole 480 , a second gap 610 between the fixing block 410 and the first joint 100 , and a third gap 620 between the slide slot 450 and the lock pin 470 .

[0066] In this embodiment, the equivalent diameter of the air hole 500 is 0.1-1mm. The equivalent diameters of the first gap 600, the second gap 610 and the third gap 620 are 0.1-1mm. During the conversion process of the airbag being inflated and deflated, since the equivalent diameters of the air hole 500, the first gap 600, the second gap 610 and the third gap 620 are relatively small, the positive pressure chamber always maintains the corresponding positive pressure, and the negative pressure chamber always maintains the corresponding negative pressure. During the finger clenching and back extension training, the locking pin 470 is always inserted into the locking hole 480, ensuring that the first connector 100 and the second connector 200 are always reliably connected, which can reduce the safety hazards caused by quickly unlocking the first connector 100 and the second connector 200 when the airbag is under positive pressure, improve the reliability of the connection between the first air supply pipe and the second air supply pipe 210, and facilitate the replacement of gloves during or after training, which is highly practical.

[0067] In this embodiment, the air source inflates the airbag to drive the fingers to perform fist-making training, and the air source draws air from the airbag to drive the fingers to perform back extension training. When it is necessary to stop training and the air source stops supplying air to the first air supply pipe 110, the gas in the cavity 420 above the eardrum 460 is discharged to the outside of the cavity 420 through the air hole 500, and the air pressure in the cavity 420 above the eardrum 460 is consistent with the air pressure outside the cavity 420; the external air enters the third gap 620 through the second gap 610, and enters the first gap 600 from the third gap 620, and finally enters the negative pressure cavity between the eardrum 460 and the slide groove 450, until the air pressure in the negative pressure cavity is consistent with the air pressure outside the cavity 420; finally, the eardrum 460 drives the locking pin 470 to move away from the locking hole 480 until the locking pin 470 disengages from the locking hole 480, and the eardrum 460 returns to its natural position to complete the unlocking of the first joint 100 and the second joint 200.

[0068] In this embodiment, the first connector 100 and the second connector 200 are locked in a double locking manner by engaging the locking hook end with the locking buckle 310 and inserting the locking pin 470 into the locking hole 480, thereby improving the firmness of the connection between the first connector 100 and the second connector 200 during training and reducing safety hazards. In addition, the air source can drive the locking pin 470 to automatically insert into the locking hole 480, thereby improving the locking efficiency and reliability of the first connector 100 and the second connector 200.

[0069] Embodiment 2

[0070] See also Figure 1 , Figure 3 and Figure 6The present embodiment provides an airbag connection device of a pneumatic rehabilitation glove, comprising: a first joint 100, a second joint 200, a first air pipe 110, a second air pipe 210 and a locking device. The locking device is used to lock the first joint 100 and the second joint 200, so that one end of the first air pipe 110 is connected to the air source, and the other end is connected to the second air pipe 210, and the second air pipe 210 is connected to the airbag. The locking device includes a first locking mechanism 300 and a second locking mechanism 400. A rib 910 is connected between two adjacent first air pipes 110. A slot 920 is connected between two adjacent second air pipes 210. The rib 910 is arranged opposite to the slot 920, and the rib 910 and the slot 920 match each other, and the rib 910 is used to be clamped in the slot 920. In order to prevent the first air supply tube 110 from being inserted into the wrong corresponding second air supply tube 210 and causing incorrect movements of the thumb and little finger during training, the length of one of the ribs 910 is smaller than the lengths of the other three ribs 910 .

[0071] In this embodiment, the first locking mechanism 300 has the same structure as the first locking mechanism 300 described above.

[0072] In this embodiment, the second locking mechanism 400 includes a first pneumatic locking mechanism and a second pneumatic locking mechanism. The first pneumatic locking mechanism is used to lock the first joint 100 and the second joint 200 when the airbag is under positive pressure. The second pneumatic locking mechanism is used to lock the first joint 100 and the second joint 200 when the airbag is under negative pressure.

[0073] See also Figure 13 to Figure 14 In this embodiment, the first pneumatic locking mechanism includes: a first fixed block 411 and a first elastic locking pin assembly. The first fixed block 411 is provided with a first cavity 421, a first pipe 431, a first slide groove 451 and a first opening 630, and the first fixed block 411 is connected to the second joint 200. The first cavity 421 is provided at one end of the first fixed block 411 away from the airbag, the first cavity 421 is cylindrical, and a first clamping groove is provided in the first cavity 421. One end of the first pipe 431 is connected between the first gas delivery pipe 110 and the second gas delivery pipe 210, and the other end is connected to the first cavity 421. The first joint 100 is provided with a first locking hole 481. The first slide groove 451 is arranged opposite to the first locking hole 481, and the first slide groove 451 is connected to the first cavity 421 from the bottom of the first cavity 421. The opening end of the first locking hole 481 is located at one end close to the first slide groove 451. The first opening 630 is connected to the first cavity 421 from one side of the first cavity 421 .

[0074] See also Figures 13 to 15 In this embodiment, the first elastic locking pin assembly includes: a first eardrum 461 and a first locking pin 471. The first eardrum 461 is an arc-shaped eardrum, and the first eardrum 461 is made of soft material. The edge of the first eardrum 461 is fixed in the first clamping groove. One end of the first locking pin 471 is connected to the first eardrum 461, and the other end extends into the first slide groove 451. The first eardrum 461 is an arc-shaped eardrum protruding in the direction away from the first slide groove 451. The first eardrum 461 divides the first cavity 421 into two upper and lower cavities that are not connected to each other. The first eardrum 461 divides the first cavity 421 into a positive pressure cavity connected to the first pipe 431 and a first air cavity connected to the first slide groove 451. The first opening 630 is connected to the side of the first air cavity away from the first pipe 431, and the first opening 630 is a channel for the first air cavity to convect with the external air.

[0075] See also Fig.15 When the air source just starts to inflate the airbag for fist-clenching training, a small amount of gas in the air source enters the first air pipe 110, and a small amount of gas in the first air pipe 110 first enters the first pipe 431, and the remaining gas enters the airbag through the second air pipe 210, so that the airbag is in a positive pressure state until the airbag reaches a certain air pressure to drive the fingers to perform fist-clenching rehabilitation training. The gas flow entering the first pipe 431 is less than the gas flow entering the airbag, and part of the gas entering the first pipe 431 flows into the first cavity 421. The first eardrum 461 is subjected to a smaller gas pressure, and the protruding part of the first eardrum 461 is affected by the gas. Under the action of the pressure of the body, it sinks inwardly in the direction close to the slide groove, thereby pushing the first locking pin 471 to be inserted into the first locking hole 481. The first locking pin 471 can be automatically inserted into the first locking hole 481 when the air source just starts to inflate the airbag, and can quickly lock the first connector 100 and the second connector 200, thereby improving the reliability of locking. In the process of inserting the first locking pin 471 into the first locking hole 481, the gas in the first air cavity is discharged to the outside of the first cavity 421, which can reduce the resistance of the protruding part of the first eardrum 461 to sink inwardly in the direction close to the first slide groove 451, thereby accelerating the speed and efficiency of the first locking pin 471 being inserted into the first locking hole 481.

[0076] See also Figures 16 to 18In this embodiment, the second pneumatic locking mechanism includes: a second fixed block 412 and a second elastic locking pin assembly. The second fixed block 412 is connected to the second joint 200, and a second cavity 422, a second pipe 432, a second slide groove 452 and a second opening 640 are provided in the second fixed block 412. The first cavity 421 is provided at one end of the second fixed block 412 away from the airbag, the second cavity 422 is cylindrical, and a second clamping groove is provided in the second cavity 422. One end of the second pipe 432 is connected between the first gas delivery pipe 110 and the second gas delivery pipe 210, and the other end is connected to the second cavity 422. A second locking hole 482 is provided on the first joint. The second slide groove 452 is arranged opposite to the second locking hole 482, and the second slide groove 452 is connected to the second cavity 422 from the bottom of the second cavity 422. The opening end of the second locking hole 482 is located near one end of the second slide groove 452. The second opening 640 is connected to the second cavity 422 from one side of the second cavity 422 .

[0077] See also Figures 16 to 18 In this embodiment, the second elastic locking pin assembly includes: a second eardrum 462 and a second locking pin 472. The second eardrum 462 has the same structure as the first eardrum 461. The second eardrum 462 is an arc-shaped eardrum. The second eardrum 462 is made of soft material. The edge of the second eardrum 462 is fixed in the second clamping groove. One end of the second locking pin 472 is connected to the second eardrum 462, and the other end extends into the second slide groove 452. The second eardrum 462 is an arc-shaped eardrum protruding away from the second slide groove 452. The second eardrum 462 divides the second cavity 422 into two upper and lower cavities that are not connected to each other. The second eardrum 462 divides the second cavity 422 into a negative pressure cavity connected to the second pipe 432 and a second air cavity in a relative position to the negative pressure cavity. The second opening 640 is connected to the side of the second air cavity away from the second pipe 432. The second opening 640 is a channel for the second air cavity to convect with the external air.

[0078] See also Fig.18 and Fig.14When it is necessary to switch from fisting training to finger back extension training, the air source draws air from the airbag, and the gas in the airbag enters the first air pipe 110 through the second air pipe 210 and is drawn out to drive the fingers to perform back extension training operations. The gas in the negative pressure chamber is pressurized and discharged from the second cavity 422 into the second pipe 432, flows from the second pipe 432 to the first air pipe 110 and is drawn out. In the process of the gas in the negative pressure chamber being discharged into the second pipe 432, the second eardrum 462 is pressurized to collapse in the direction close to the slide groove, thereby pushing the second locking pin 472 to be inserted into the second locking hole 482, and can automatically lock the first joint 100 and the second joint 200 when the airbag is under negative pressure. In this process, the gas in the positive pressure chamber is drawn out into the first air pipe 110, so that the collapsed first eardrum 461 rebounds in the direction away from the first slide groove 451 until it returns to its natural position.

[0079] In this embodiment, when the air source inflates the airbag to drive the fingers to perform fist rehabilitation training, the airbag is in a positive pressure state, and the air source can drive the first locking pin 471 to automatically insert into the first locking hole 481, and the second locking pin 472 is in a natural position. When the air source deflates the airbag to drive the fingers to perform back extension rehabilitation training, the airbag is in a negative pressure state, and the air source can drive the second locking pin 472 to automatically insert into the second locking hole 482, and the first locking pin 471 returns to the natural position, and can lock the first connector 100 and the second connector 200 while the air source is alternately inflating and deflating the airbag. At the same time, the first connector 100 and the second connector 200 are locked by the first locking mechanism 300, and the first connector 100 and the second connector 200 can be firmly locked, with high locking efficiency and reliability.

[0080] See also Fig.19 In this embodiment, the airbag connection device of the pneumatic rehabilitation glove further includes: a connection ring 800. The connection ring 800 is connected to the second joint 200. There are two connection rings 800 arranged opposite to each other. The two connection rings 800 are respectively connected to the corresponding side of the second joint 200. Sewing the glove fabric and the connection ring 800 together can effectively prevent the rotation of the glove during training, thereby improving the training efficiency.

[0081] In this embodiment, the first pneumatic locking assembly and the second pneumatic locking assembly are arranged opposite to each other, and the first pneumatic locking assembly and the second pneumatic locking assembly are respectively connected to the corresponding side of the second joint 200, the number of the first pneumatic locking mechanisms is 1 to 5, and the number of the second pneumatic locking mechanisms is 1 to 5.

[0082] In other embodiments, the first pneumatic locking assembly and the second pneumatic locking assembly are disposed on the same side of the second joint 200 .

[0083] Embodiment 3

[0084] See also Figures 1 to 19 The present embodiment provides a pneumatic rehabilitation glove, comprising the above-mentioned airbag connecting device of the pneumatic rehabilitation glove. When the pneumatic rehabilitation glove is in use, the first locking mechanism 300 and the second locking mechanism 400 are used to doubly lock the first joint 100 and the second joint 200, thereby improving the firmness of the connection between the first joint 100 and the second joint 200 and reducing safety hazards. The second locking mechanism 400 automatically completes the locking of the first joint 100 and the second joint 200 through the air source, thereby improving the training efficiency of the pneumatic rehabilitation glove.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0086] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An airbag connection device for pneumatic rehabilitation gloves, characterized in that: include: A first joint, a second joint and a locking device; A first gas delivery pipe is arranged in the first joint; A second gas pipe is arranged in the second joint; The locking device is used to lock the first joint and the second joint so that the first gas pipe is connected to the second gas pipe; The locking device comprises a first locking mechanism and a second locking mechanism; The first locking mechanism is used to buckle and lock the first connector and the second connector; The second locking mechanism is used to insert and lock the first connector and the second connector when the first gas pipe is under positive pressure and / or negative pressure.

2. The airbag connection device of the pneumatic rehabilitation glove according to claim 1, characterized in that: The second locking mechanism comprises: a fixing block, an elastic locking pin assembly and a guide assembly; The fixing block is arranged on the second joint, and a cavity, a pipe and a slide groove are arranged in the fixing block; A branch pipe is provided in the pipeline, one end of the pipeline is connected between the first gas pipeline and the second gas pipeline, and the other end is communicated with the cavity, one end of the branch pipe is connected between the first gas pipeline and the second gas pipeline through the pipeline, and the other end is communicated with the cavity; The first joint is provided with a lock hole, the slide groove is arranged opposite to the lock hole, and the slide groove is connected to the cavity from the bottom of the cavity; The guide assembly is used to control the gas to enter the cavity from the pipeline and to flow out of the cavity from the branch pipe; The top end of the elastic locking pin assembly is arranged in the cavity, the bottom end is arranged in the slide groove, and the bottom end is inserted into the locking hole when the first air delivery pipe is under positive pressure or negative pressure.

3. The airbag connection device of the pneumatic rehabilitation glove according to claim 2, characterized in that: The guide assembly includes: a first arc-shaped member and a second arc-shaped member; The first arc-shaped member is disposed in the pipe at one end close to the cavity, and the first arc-shaped member is used to control the gas to flow from the pipe into the cavity; The second arc-shaped member is disposed in the branch pipe, and the second arc-shaped member is used to control the gas to flow out of the cavity.

4. The airbag connection device of the pneumatic rehabilitation glove according to claim 2, characterized in that: The elastic locking pin assembly comprises a tympanic membrane and a locking pin; The eardrum is connected to the cavity, and the eardrum divides the cavity into a positive pressure cavity connected to the pipeline and a negative pressure cavity connected to the branch pipe; One end of the locking pin is connected to the eardrum, and the other end is arranged in the slide groove. The eardrum is used to push the locking pin when the first air supply pipe is under positive pressure or negative pressure, so that the locking pin is inserted into the lock hole.

5. The airbag connection device of the pneumatic rehabilitation glove according to claim 1, characterized in that: The second locking mechanism includes a first pneumatic locking assembly and a second pneumatic locking assembly; The first pneumatic locking assembly is used to lock the first joint and the second joint when the first gas pipeline is under positive pressure; The second pneumatic locking assembly is used to lock the first joint and the second joint when the first gas pipe is under negative pressure.

6. The airbag connection device of the pneumatic rehabilitation glove according to claim 5, characterized in that: The first pneumatic locking assembly includes: a first fixing block and a first elastic locking pin assembly; The first fixing block is arranged on the second joint, and a first cavity, a first pipe and a first slide groove are arranged in the first fixing block; One end of the first pipeline is connected between the first gas pipeline and the second gas pipeline, and the other end is communicated with the first cavity; The first joint is provided with a first locking hole, the first sliding groove is arranged opposite to the first locking hole, and the first sliding groove is connected to the first cavity from the bottom of the first cavity; The first elastic locking pin assembly includes a first eardrum and a first locking pin; The first eardrum is connected to the cavity, and the first eardrum divides the first cavity into a positive pressure cavity connected to the first pipe and a first air cavity connected to the first chute; One end of the first locking pin is connected to the first eardrum, and the other end is arranged in the first slide groove. The first eardrum is used to push the first locking pin when the first air pipe is under positive pressure, so that the first locking pin is inserted into the first locking hole.

7. The airbag connection device of the pneumatic rehabilitation glove according to claim 5, characterized in that: The second pneumatic locking assembly includes: a second fixing block and a second elastic locking pin assembly; The second fixing block is arranged on the second joint, and a second cavity, a second pipe and a second slide groove are arranged in the second fixing block; One end of the second pipeline is connected between the first gas pipeline and the second gas pipeline, and the other end is communicated with the second cavity; The first joint is provided with a second locking hole, the second sliding groove is arranged opposite to the second locking hole, and the second sliding groove is connected to the second cavity from the bottom of the second cavity; The second elastic locking pin assembly includes: a second eardrum and a second locking pin; The second eardrum is connected to the second cavity, and the second eardrum divides the second cavity into a negative pressure cavity connected to the second pipe and a second air cavity opposite to the negative pressure cavity; One end of the second locking pin is connected to the second eardrum, and the other end is arranged in the second slide groove. The second eardrum is used to push the second locking pin when the first air pipe is under negative pressure, so that the second locking pin is inserted into the second locking hole.

8. The airbag connection device of the pneumatic rehabilitation glove according to claim 5, characterized in that: The first pneumatic locking component and the second pneumatic locking component are arranged opposite to each other.

9. The airbag connection device of the pneumatic rehabilitation glove according to claim 1, characterized in that: The first locking mechanism comprises: a lock catch, a lock hook and a spring; The lock buckle is arranged on the second joint; The lock hook is rotatably connected to the first joint; The spring is arranged between the handle end of the lock hook member and the first joint, and the lock hook end of the lock hook member is used to buckle on the lock buckle to lock the first joint and the second joint.

10. A pneumatic rehabilitation glove, characterized in that: An airbag connecting device comprising the pneumatic rehabilitation gloves according to any one of claims 1 to 9.

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