Limiting device for training apparatus and training machine
By designing the limiting device, the impact point of adjustable limiting parts and blocking parts is solved, and the problem that existing training machines cannot adjust the moving range is achieved, achieving personalized adaptation to the trainer and activation of natural movements of the pelvic and hip joints is achieved. , improves training effect and product applicability.
Patent Information
- Application Number
- CN202420286507.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-06
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-06
AI Technical Summary
The existing training machines cannot adjust the moving range, resulting in the inability to adapt to the needs of different trainers, affecting the training effect and the applicability of the product.
A limiting device is designed, including a base, a moving member, a barrier member and a limiting member, and adjusts the impact point of the barrier member and the moving member by changing the position of the limiting member, thereby realizing the adjustment of the moving range of the moving member. The device can adjust the moving range of moving parts according to specific application scenarios, improving the training effect and product versatility.
It realizes flexible adjustment of the moving range of moving parts, adapts to the needs of different trainers, improves the training effect and product applicable groups, ensures the natural movement state of the pelvis and hip joints, and activates proprioceptors in the muscles.
Smart Images
Figure CN222130540U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of training equipment, in particular to a limiting device for limiting movement. Background Art
[0002] At present, most international and domestic lower limb training robots are configured with a suspension weight reduction plus an exoskeleton walking system. The force plane of suspension weight reduction is much higher than the center of gravity of the human body, so it will cause chaotic and complex stress effects during walking training. It is difficult to restore the rotation angle of the pelvis and hip joints in the natural state, and it is impossible to form a walking movement rhythm with the lumbar spine and pelvis, so the proprioceptors in the pelvis / hip joints and muscles cannot be properly activated. For equipment that uses a pelvic weight reduction mechanism as a weight reduction method, the horizontal translation control mechanism of the pelvic mechanism is either open, which is the maximum horizontal degree of freedom, or locked, which means there is no horizontal degree of freedom and cannot be adjusted according to the needs of the trainee.
[0003] For example, the patent document "A pelvic mechanism capable of separately locking the left and right translational movements" with authorization announcement number CN207627466U discloses a training machine that can separately lock the left and right translational movements of the pelvic mechanism to facilitate hemiplegic patients to correct their walking gait. The left and right translational movements can only be locked or completely released and cannot be adjusted, and its applicability is general. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the defect that the movement range of the training machine in the prior art cannot be adjusted, and to provide a limiting device for training equipment and a training machine.
[0005] The utility model solves the above technical problems through the following technical solutions:
[0006] A limiting device for a training apparatus, comprising a base and a moving component, wherein the moving component is movably arranged relative to the base and can move along a first direction, and the limiting device further comprises:
[0007] A blocking component connected to the moving component;
[0008] The limiting component is used to collide with the blocking component to prevent the moving component from moving along the first direction. The limiting component is movably installed on the base to change the position of the part where the blocking component and the limiting component collide in the first direction.
[0009] In this solution, the blocking component moves along the first direction relative to the base together with the moving component. When the blocking component moves to a position where it collides with the limiting component on the base, the limiting component prevents the blocking component from continuing to move along the first direction, thereby preventing the moving component from continuing to move along the first direction, thereby limiting the movement of the moving component along the first direction.
[0010] By changing the position of the limiting component relative to the base, the position of the part where the blocking component and the limiting component collide with each other in the first direction is changed, thereby changing the position where the moving component is blocked in the first direction, and adjusting the moving range of the moving component in the first direction. The moving range of the moving component in the first direction is adjustable, and the moving range can be adjusted according to specific application scenarios, thereby improving the training effect on the trainee and the versatility of the product.
[0011] Preferably, the blocking component and / or the limiting component has a plurality of action sites for impact at different positions in the first direction;
[0012] Alternatively, the limiting component is movably mounted on the base to change the position of the limiting component in the first direction.
[0013] Preferably, the positions of the action sites on the same component in the first direction are:
[0014] Continuously changing or discontinuously changing;
[0015] and / or, monotonically varying.
[0016] In the present technical solution, the position of the action part in the first direction changes continuously, which can realize stepless adjustment of the movement limit of the moving part in the first direction; the position of the action part in the first direction changes discontinuously, which can realize step-by-step adjustment of the movement limit of the moving part in the first direction.
[0017] The position of the action part in the first direction changes monotonically, so that the structure of the limiting device is simple. When the limiting component is driven by the driving component to change the position relative to the base, the driving is simplified.
[0018] Preferably, the surface of the blocking component and / or the limiting component has a plurality of stepped surfaces to form different action parts;
[0019] Alternatively, the movement path of the limiting component is perpendicular to the first direction, the limiting component has one action site, and the blocking component has a plurality of action sites.
[0020] In this solution, a stepped surface is provided to form different action parts, and the structure is simple. The stepped surface realizes surface contact when the limiting component and the blocking component collide, so that the limiting component blocks the blocking component reliably, and it is convenient to reduce wear, improve reliability and service life.
[0021] Preferably, the limiting device includes two blocking components and two limiting components, and the blocking components correspond to the limiting components one to one, and the two limiting components are respectively used to prevent the moving component from moving forward and backward along the first direction.
[0022] In this solution, the arrangement is such that both the forward movement and the reverse movement of the moving component along the first direction are limited, so that the limiting of the moving component is reliable.
[0023] Preferably, the two limiting components are independent of each other or dynamically connected and move synchronously;
[0024] And / or, the movement path of the limiting component has a locking position and / or a releasing position, when the limiting component is located at the locking position, the forward movement or reverse movement of the moving component corresponding to the limiting component along the first direction is locked; when the limiting component is located at the releasing position, the forward movement or reverse movement of the moving component corresponding to the limiting component is completely released.
[0025] In this solution, the two limiting components are independent of each other, which makes it easy to drive the two limiting components separately to change the forward movement range and the reverse movement range of the moving component along the first direction respectively, thereby improving the flexibility of adjusting the movement range of the moving component.
[0026] The two limiting components are dynamically connected and move synchronously, so that the range of positive movement and the range of reverse movement of the moving component along the first direction can be synchronously adjusted, making the structure simple.
[0027] Preferably, the limiting device further comprises a buffer component, and at least one of the limiting component and the blocking component is provided with the buffer component, and the limiting component and the blocking component collide with each other through the buffer component.
[0028] In this solution, a buffer is provided to alleviate the impact when the limiting component and the blocking component collide with each other.
[0029] Preferably, the buffer member on at least one of the two components, the limiting component and the blocking component, is rotatably or fixedly arranged.
[0030] In this solution, the buffer is rotatably arranged, and the impact of the collision can be further reduced by the rotation. The buffer is fixedly arranged, and the reliability of the installation and buffering of the buffer can be improved.
[0031] Preferably, the action part of the blocking component for colliding with the limiting component is covered by the buffer component;
[0032] And / or, the buffer member on the limiting component has an arc-shaped buffer groove, and a buffer plane on the side facing the blocking component, and the limiting device also includes a buffer shaft, which is inserted into the buffer groove and fixed on the limiting component.
[0033] Preferably, the limiting device further comprises a manual action part, the manual action part is dynamically connected to the limiting component, and the manual action part is used for installing a tool or for a person to hold;
[0034] And / or, the limiting device further comprises a driving component, and the driving component is dynamically connected to the limiting component.
[0035] In the technical solution, a manual action portion is provided to facilitate manual adjustment of the position of the limiting component relative to the base.
[0036] A driving component is provided to automatically adjust the position of the limiting component relative to the base.
[0037] A driving component and a manual action part are provided at the same time, and when the driving component fails, manual adjustment can be performed to improve reliability.
[0038] Preferably, the limiting device further comprises a transmission mechanism, the transmission mechanism is dynamically connected to the limiting component, and the transmission mechanism is used to dynamically connect to the manual action part and / or the driving device of the limiting device.
[0039] Preferably, the output end of the driving component is rotatably arranged relative to the base, the limiting component is movably arranged relative to the base, the transmission mechanism includes a matching screw rod and a slider, the screw rod is dynamically connected to the output end of the driving component, and the limiting component is arranged on the slider;
[0040] The manual action part is dynamically connected to the screw rod.
[0041] Preferably, the limiting device further comprises two connecting rods, and the moving component and the limiting component are respectively connected to the two connecting rods to form a four-bar linkage in the form of a parallelogram;
[0042] The blocking component is arranged on the connecting rod or on the moving component.
[0043] Preferably, the limiting device further comprises a manual action part, the manual action part is dynamically connected to the limiting component, and the manual action part is used for installing a tool or for a person to hold;
[0044] The manual action portion is disposed on an outer side of the connecting rod in a direction perpendicular to the first direction.
[0045] In the present solution, such an arrangement is adopted to prevent the connecting rod from moving to pinch the hand when the position of the limit component is adjusted manually.
[0046] Preferably, the limiting component is self-locked by a locking component or other structure connected to the limiting component so as to be locked relative to the base.
[0047] In this solution, such an arrangement is adopted to achieve locking of the limiting component relative to the base, avoid shaking of the limiting component when the limiting component collides with the blocking component, and improve the reliability of the limiting component in limiting the blocking component and the moving component.
[0048] Preferably, the limiting device further comprises a sensor, and the sensor is used to detect the position of the moving component relative to the base.
[0049] In this solution, the sensor can detect the position of the moving part relative to the base. When the position of the limiting part is adjusted, it can be determined whether the position of the limiting part is adjusted to the right position through the information detected by the sensor.
[0050] A training machine comprises a contact component for contacting a trainee, and the training machine also comprises a limiting device for a training device as described in any of the above technical solutions, wherein the contact component is dynamically connected to the moving component.
[0051] In this solution, the contact component is driven by the trainee to move, so as to drive the moving component to move along the first direction. The moving range of the moving component along the first direction is limited by the limiting component, thereby limiting the movement range of the trainee.
[0052] Preferably, the contact component is used to contact at least one of the legs, buttocks and abdomen of the trainee, and the first direction is parallel to the horizontal direction.
[0053] In this solution, such an arrangement is convenient for limiting the range of left and right movement of the trainee when walking.
[0054] The positive and progressive effects of the utility model are:
[0055] The moving range of the moving component along the first direction can be adjusted, so that the moving range can be adjusted according to specific needs, thereby improving the training effect on the trainees and expanding the applicable groups of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0056] Figure 1 This is a schematic diagram of the top view of the limit device of one embodiment of the utility model;
[0057] Figure 2 This is a schematic diagram of the three-dimensional structure of a limiting device according to an embodiment of the utility model;
[0058] Figure 3 This is a schematic diagram of the three-dimensional structure of a limiting device according to an embodiment of the utility model;
[0059] Figure 4 This is a schematic diagram of the three-dimensional structure of a limiting device according to an embodiment of the utility model;
[0060] Figure 5 for Figure 4 Enlarged view of part A in the middle;
[0061] Figure 6 A three-dimensional diagram of a partial structure of a position limiting device according to an embodiment of the utility model;
[0062] Figure 7 A cross-sectional view of a partial structure of a position limiting device according to an embodiment of the utility model;
[0063] Figure 8 A cross-sectional view of a partial structure of a position limiting device according to an embodiment of the utility model;
[0064] Fig. 9 A three-dimensional diagram of a partial structure of a position limiting device according to an embodiment of the utility model;
[0065] Fig.10 for Fig. 9 Enlarged view of middle part B;
[0066] Fig.11 It is a cross-sectional view of a partial structure of a limiting device according to an embodiment of the utility model.
[0067] Fig.12 A three-dimensional diagram of a partial structure of a position limiting device according to an embodiment of the utility model;
[0068] Fig.13 for Fig.12 Middle partial enlarged picture;
[0069] Fig.14 It is a cross-sectional view of a partial structure of a limiting device according to an embodiment of the utility model.
[0070] Description of reference numerals:
[0071] Limiting device 1000;
[0072] Base (pelvic base) 1;
[0073] Moving parts (tilt base) 2;
[0074] Blocking member 3, first surface 31, second surface 32, third surface 33, fourth surface 34;
[0075] Limiting component 4;
[0076] Driving component 51, motor mounting plate 52;
[0077] Driving gear 61, driven gear 62, first rotating shaft 63, coupling 64, screw rod 65, slider 66, gear box 671, gear box cover 672; module mounting seat 68, guide part 681;
[0078] Connecting rod (rocker arm) 71, second rotating shaft 72, third rotating shaft 73, second bearing 74, second rotating shaft end cover 75, third rotating shaft end cover 76;
[0079] A sensor base 81 and a sensor bracket 82;
[0080] Buffer component 91 , buffer shaft 92 , pressure plate 93 , screw 94 . DETAILED DESCRIPTION
[0081] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.
[0082] It should be noted that:
[0083] In this embodiment, the first direction X is parallel to the horizontal direction, and the second direction Y is parallel to the vertical direction. Specific directional words such as top view, left, right, top, bottom, and above are used to facilitate understanding of the relative position relationship of components. In other embodiments, the actual layout of the product may be different from this embodiment.
[0084] In each embodiment, the forward and reverse directions are introduced to illustrate opposite directions and should not be construed as limitations on the present invention. For ease of understanding, in this embodiment, the leftward movement of the moving component and the blocking component is defined as forward movement, and the rightward movement is defined as reverse movement.
[0085] The utility model provides a training machine, which comprises a limiting device and a contact component for contacting a trainee. Figure 1-Figure 14 This is a schematic structural diagram of a limiting device 1000 provided in one embodiment of the present utility model.
[0086] The contact part and the moving part 2 of the limiting device 1000 are rotatably connected, such as Figure 1-Figure 4 As shown, the moving part 2 is movably arranged relative to the base 1 of the limiting device 1000 and can move along the first direction. When the trainer exercises, the contact part is driven to move, so as to drive the moving part 2 to move relative to the base 1 along the first direction.
[0087] The limiting device 1000 also includes a blocking component 3 and a limiting component 4. The blocking component 3 is fixed on the moving component. When the trainee moves, the moving component 2 and the blocking component 3 are driven to move relative to the base 1 along the first direction. When the blocking component 3 moves to collide with the limiting component 4 on the base 1, the limiting component 4 prevents the blocking component 3 from continuing to move along the first direction, thereby preventing the moving component 2 from continuing to move along the first direction, thereby limiting the movement of the trainee. The limiting component 4 limits the range of movement of the moving component 2 along the first direction, thereby limiting the range of movement of the trainee.
[0088] The limiting component 4 is movably mounted on the base 1 to change the position of the part where the blocking component 3 and the limiting component 4 collide in the first direction, thereby changing the position where the moving component 2 is blocked in the first direction, and adjusting the moving range of the moving component 2 in the first direction. The moving range of the moving component 2 in the first direction is adjustable, and the moving range can be adjusted according to specific application scenarios, thereby improving the training effect on the trainee and providing a suitable population for the product.
[0089] In this embodiment, the training machine is a lower limb rehabilitation robot, which is used for walking rehabilitation training of hemiplegic patients. The limiting device 1000 is a pelvic horizontal movement mechanism of the lower limb rehabilitation robot. The base 1 is a pelvic base, and the moving part 2 is a tilting base. Specifically, the contact part is used to contact the legs, buttocks, and abdomen of the trainee to move with the pelvic part of the trainee, and the first direction is parallel to the horizontal direction.
[0090] like Figure 1-Figure 4 As shown, the limiting device 1000 also includes two connecting rods 71, i.e., rocker arms. The moving part 2 and the limiting part 4 are respectively connected to the two connecting rods 71 to form a four-link 71 mechanism in the form of a parallelogram, so that the moving part 2 can move in a first direction relative to the base 1. The blocking part 3 is fixed on the connecting rod 71, and when the moving part 2 moves relative to the base 1, the blocking part 3 is driven to move relative to the base 1. The limiting part 4 is used to limit the range of left and right movement of the pelvic part of the trainee when walking.
[0091] Specifically, Figure 6-Figure 8 As shown, the upper and lower ends of the connecting rod 71 are rotationally connected to the base 1 through the second rotating shaft 72, and are rotationally connected to the moving component 2 through the third rotating shaft 73. The second rotating shaft 72 and the third rotating shaft 73 are both provided with second bearings 74, which are tapered roller bearings. The second rotating shaft end cover 75 is fixed on the base 1 to seal and axially position the second rotating shaft 72. The third rotating shaft end cover 76 is fixed on the moving component 2 to seal and axially position the third rotating shaft 73.
[0092] During the actual training process, the therapist can adjust the position of the limiting component 4 according to the degree of the trainee's walking dysfunction to adjust the range of movement of the moving component 2 in the horizontal direction, limit the range of movement of the trainee's affected side, and limit the amplitude of left and right movement of the trainee when walking, thereby improving the training effect.
[0093] In other embodiments, when the limiting device 1000 is used to adjust the range of motion of the trainee's pelvis, the contact component can be made to contact at least one of the trainee's legs, buttocks, and abdomen to follow the trainee's pelvic motion according to specific training requirements. In other embodiments, the blocking component 3 can be arranged on the connecting rod 71 and indirectly connected to the moving component 2, or can be arranged on the moving component 2 and directly connected to the moving component 2.
[0094] In other embodiments, the training machine can be used for rehabilitation training of patients and physical training of normal people. In other embodiments, the limit device 1000 can be used to adjust the range of movement of the trainee's pelvis and other parts of the trainee, such as arm training and head training of the trainee; the contact part can be a structure such as a strap or an armrest; the type of the contact part, the connection method between the contact part and the moving part 2, the orientation of the first direction, etc. can be adaptively adjusted according to the training parts and training items required by the trainee.
[0095] like Figure 4 , Figure 5 , Figure 7 As shown, the limiting device 1000 also includes a sensor, which is used to detect the position of the moving part 2 relative to the base 1. Specifically, the sensor is an angle sensor, and the base 81 of the sensor is fixed on the third shaft end cover 76 through the sensor bracket 82 to be fixed relative to the moving part 2. The sensor shaft is fixedly connected to the third shaft 73. When the moving part 2 moves along the first direction relative to the base 1, the third shaft 73 and the sensor shaft rotate relative to the moving part 2, and the base 81 of the sensor detects the rotation angle of the sensor shaft, so that the position of the moving part 2 relative to the base 1 can be obtained. When adjusting the position of the limiting part 4, the moving part 2 can be manually pushed to move along the first direction until it is blocked by the limiting part 4, and the position of the limiting part 4 can be determined in combination with the information detected by the sensor.
[0096] Optional, such as Fig. 9 , Fig.12 , Fig.14 As shown, the limiting device 1000 further includes a driving component 51, the output end of the driving component 51 is connected to the limiting component 4 for automatically driving the limiting component 4 to move relative to the base 1. Specifically, in this embodiment, the driving component 51 is a motor, such as Figure 2As shown, the driving component 51 is mounted on the base 1 through the motor mounting plate 52. The position of the limiting component 4 is automatically adjusted by the motor to automatically adjust the range of movement of the moving component 2 along the first direction, which is convenient and quick to operate.
[0097] Optional, such as Figure 1 , Figure 2 As shown, in this embodiment, the limiting component 4 moves along the second direction Y, which is perpendicular to the first direction X, so that the limiting device 1000 can be compact in structure.
[0098] Optional, such as Fig.14 As shown, the limiting device 1000 also includes a transmission mechanism, and the output end of the driving component 51 is connected to the limiting component 4 through the transmission mechanism. Specifically, in this embodiment, the transmission mechanism includes a linear module, and the linear module includes a screw 65 and a slider 66. The output end of the motor drives the screw 65 to rotate, so as to drive the slider 66 to move along the screw 65, and the limiting component 4 is fixed on the slider 66 and moves with the slider 66. Further, the transmission mechanism also includes a driving gear 61, a driven gear 62, a first rotating shaft 63, and a coupling 64. The driving gear 61 and the driven gear 62 are meshed, and the driven gear 62 is installed on the first rotating shaft 63 through a key. The screw 65 and the first rotating shaft 63 are connected through the coupling 64. The output shaft of the motor drives the driving gear 61 to rotate, thereby driving the driven gear 62 and the first rotating shaft 63, and the screw 65 to rotate in turn, so as to drive the slider 66 and the screw 65 of the limiting component 4 to move, that is, move along the second direction.
[0099] like Fig. 9 The linear module also includes a module mounting seat 68, wherein the screw rod 65 and the slider 66 are mounted on the module mounting seat 68, and the module mounting seat is fixed to the side of the base 1, so that the linear module is located on the side of the base 1, which is convenient for removing the linear module from the base 1 to maintain the linear module or maintain other structures installed on the base 1. Fig. 9 The limiting component 4 cooperates with the guide portion 681 on the module mounting seat 68 , and the guide portion 681 and the screw rod 65 are arranged in parallel, so that the limiting component 4 and the slider 66 move along the axial direction of the screw rod 65 .
[0100] Specifically, in this embodiment, the driving gear 61 and the driven gear 62 are installed in the gear box 671, which is closed by the gear box cover 672. The gear box 671 is fixed to the top of the module mounting seat 68 in the linear module to indirectly fix the gear box 671 on the base 1. The gear box 671 is installed on the linear module, which is convenient for assembling, debugging or maintaining the parts in the linear module and the gear box 671 together. The upper and lower ends of the driven gear 62 are provided with first bearings, which are installed on the first rotating shaft 63, specifically deep groove ball bearings, to prevent the first rotating shaft 63 from moving up and down.
[0101] In this embodiment, the driving component 51 adopts a motor, which is low in cost and simple to control; the transmission mechanism adopts a screw 65 and a slider 66 to realize the conversion between rotational motion and linear motion, and has a compact structure. In other embodiments, the driving component 51 can be a rotating driving component whose output end such as a motor performs rotational motion, or a moving driving component whose output end such as a cylinder performs linear motion. In other embodiments, the limiting component 4 can be moved or rotated to change the position of the part of the limiting component 4 used to collide with the blocking component 3 in the first direction; the limiting component 4 is set to rotate, for example, the limiting component is set to an eccentric wheel that can rotate relative to the base. In other embodiments, the specific type of the transmission mechanism can be flexibly adjusted according to the movement mode of the driving component 51 and the limiting component 4. In other embodiments, the transmission mechanism may not be set, for example, a cylinder is used to directly drive the limiting component to move.
[0102] Optional, such as Fig.14 As shown, the upper end of the first rotating shaft 63 is configured to be a hexagonal boss shape, which serves as a manual action portion for mounting a hexagonal socket or a wrench, so that the first rotating shaft 63 can be manually rotated to drive the screw 65 to rotate, so that the slider 66 drives the limiting component 4 to move. When the driving component 51 fails, manual adjustment can be performed through the manual action portion to improve reliability.
[0103] Specifically, Figure 2 , Fig. 9 As shown, in this embodiment, the manual action portion is arranged on the outside of the connecting rod 71 along the direction perpendicular to the first direction, so as to avoid the connecting rod 71 moving to pinch the hand when the position of the limiting component 4 is manually adjusted.
[0104] In other embodiments, the driving component 51 and the manual action part can be provided at the same time, or only one of them can be provided; when provided at the same time, if a transmission mechanism is provided, the driving component 51 and the manual action part can transmit power to the limit component 4 through the same transmission mechanism, or can transmit power through different transmission mechanisms. In other embodiments, the manual action part can be used to install tools or for people to hold, and the shape can be flexibly adjusted according to the manual adjustment method.
[0105] Optionally, in this embodiment, the screw rod 65 and the slider 66 of the transmission mechanism have a self-locking function. When the position of the limiting component 4 is adjusted to the right position, the limiting component 4 is locked relative to the base 1 through the screw rod 65 and the slider 66 to prevent the limiting component 4 from shaking when the limiting component 4 collides with the blocking component 3, thereby improving the reliability of the limiting component 4 limiting the blocking component 3 and the moving component 2. In other embodiments, an additional locking component can be provided to lock and unlock the limiting component 4 relative to the base 1, for example, by a pluggable limiting pin or a clamp, etc. to lock the limiting component 4 relative to the base 1; the locking and unlocking of the limiting component 4 relative to the base 1 can be achieved by self-locking of other structures connected to the limiting component 4, for example, a transmission mechanism with a self-locking function such as a gear pair, a screw rod slider, etc., or a driving component 51 with a self-locking function such as a cylinder.
[0106] Optionally, in this embodiment, a buffer member 91 is provided on the limiting component 4, and the limiting component 4 and the blocking component 3 collide with each other through the buffer member 91 to alleviate the impact during the collision.
[0107] Optional, such as Figure 9-13 As shown, the buffer 91 on the limiting component 4 has an arc-shaped buffer groove, a cylindrical surface coaxial with the buffer groove in the circumferential direction, and a buffer plane facing the blocking component in the circumferential direction; the buffer 91 is arranged in the hole of the limiting component 4, and the buffer shaft of the limiting device is passed through the buffer groove through the contact between the cylindrical surface and the side wall of the hole of the limiting component 4, so that the buffer 91 can rotate within the angle corresponding to the buffer groove; when the blocking component 3 hits the buffer 91, the buffer 91 rotates to make the buffer plane abut against the blocking component 3, which is reliable for the limiting of the blocking component 3, and can increase the force surface and reduce the pressure. Specifically, in this embodiment, the buffer shaft 92 is specifically a positioning pin, which is fixed to the limiting component 4 by a pressure plate 93 and two screws 94.
[0108] In other embodiments, the buffer 91 may be provided on the limiting component 4 and / or the blocking component 3, or may not be provided. In other embodiments, the buffer 91 may be rotatably provided or fixedly provided, and the specific structural form of the buffer may be flexibly adjusted according to the actual scenario; the buffer 91 is fixedly provided, which may improve the reliability of the installation and buffering of the buffer 91. In other embodiments, when the blocking component 3 is provided with the buffer 91, the portion of the blocking component 3 that collides with the limiting component 4 may be completely covered by the buffer 91, so as to improve the buffering protection effect of the blocking component 3.
[0109] Optionally, in this embodiment, the limiting component 4 has an action site for colliding with the blocking component 3, and the blocking component 3 has multiple action sites for colliding with the limiting component 4 at different positions in the first direction. Specifically, the surface of the blocking component 3 has multiple step surfaces at different positions in the first direction, and these step surfaces form different action sites of the blocking component 3. The limiting component 4 limits the movement of the moving component 2 in the first direction by colliding with different step surfaces. Specifically, the height of the slider is adjusted by the driving component and the screw rod, thereby adjusting the height of the limiting component, so that the step surfaces of different heights on the limiting component and the blocking component correspond to each other, and the distances of these step surfaces in the first direction are different, so that the distances between the limiting component and these step surfaces are different, so that the moving component can move different distances along the first direction.
[0110] A plurality of step surfaces are provided to form action parts at different positions in the first direction, and the structure is simple. The step surfaces realize surface contact when the limiting component 4 and the blocking component 3 collide, so that the limiting component 4 can block the blocking component 3 reliably, and it is convenient to reduce wear, improve reliability and service life. The positions of the plurality of step surfaces in the first direction are discontinuous, so as to realize step-by-step adjustment of the moving range of the moving component 2 along the first direction. The positions of the plurality of step surfaces in the first direction change monotonically, so that the structure of the limiting device 1000 is simple, and when the limiting component 4 is driven by the driving component 51 to change the position relative to the base 1, it is convenient to simplify the driving. Specifically, as Figure 2 As shown, the limiting component 4 has four stepped surfaces, which are the first surface 31, the second surface 32, the third surface 33, and the fourth surface 34 from top to bottom, so as to realize four levels of adjustment of the motion range.
[0111] In other embodiments, multiple stepped surfaces at different positions in the first direction may be provided on the blocking component 3 and / or the limiting component 4 to form different action sites for impact, thereby adjusting the movement range of the moving component 2 along the first direction. In other embodiments, the multiple action sites for impact on the blocking component 3 and / or the limiting component 4 may be stepped surfaces or other shapes, as long as the multiple action sites are at different positions in the first direction.
[0112] In other embodiments, the positions of the various action parts on the same component of the blocking component 3 and the limiting component 4 in the first direction may be monotonically changed or non-monotonously changed, and may be continuously changed or discontinuously changed; the continuously changed ones, for example, the surface for impact on the blocking component 3 or the limiting component 4 is set as an inclined surface, and different positions on the inclined surface have different positions in the first direction. The continuously changed ones can realize stepless adjustment of the moving range of the moving component 2 in the first direction; the discontinuous ones can realize step-by-step adjustment of the moving range of the moving component 2 in the first direction.
[0113] Optional, such as Figure 1 As shown, the limiting device 1000 includes two blocking components 3 and two limiting components 4, and the blocking components 3 correspond to the limiting components 4 one by one, and the two limiting components 4 are respectively used to prevent the moving component 2 from moving forward and backward along the first direction. In other embodiments, the moving component 2 can be limited in the forward and / or reverse movement along the first direction.
[0114] Optionally, in this embodiment, the two limit parts 4 are independent of each other, which is convenient for adjusting the forward movement range and the reverse movement range of the moving part 2 along the first direction separately, and improving the flexibility of adjusting the movement range of the moving part 2. In other embodiments, the two moving parts 2 can be independent of each other, can be connected by power and move synchronously; when moving synchronously, the forward movement range and the reverse movement range of the moving part 2 along the first direction can be adjusted synchronously, so that the structure is simple and it is convenient to improve the accuracy of the synchronization of the forward movement and reverse movement ranges.
[0115] like Figure 1 , Figure 2 As shown, in this embodiment, the two driving components 51 , the two transmission mechanisms, and the two limiting components 4 in the limiting device 1000 are symmetrically arranged along the center plane of the limiting device 1000 .
[0116] Optionally, the movement path of the limiting component 4 has a locking position and a releasing position. When the limiting component is located at the locking position, the forward movement or reverse movement of the moving component corresponding to the limiting component along the first direction is locked; when the limiting component is located at the releasing position, the forward movement or reverse movement of the moving component corresponding to the limiting component is completely released. The limiting component has a locking position. When one of the limiting components is located at the locking position, the unilateral adjustment of the movement of the moving component along the first direction can be achieved by adjusting the other limiting component; when both limiting components are located at the locking position, the movement of the moving component along the first direction can be locked. In other embodiments, the limiting component 4 may have a releasing position and / or a locking position, and may not have a releasing position and a locking position.
[0117] Specifically, in this embodiment, the limiting device 1000 can operate in the following manner:
[0118] (1) Figure 2As shown, when the left limiting component 4 corresponds to the first surface 31 of the left blocking component 3 in height, the space between the left limiting component 4 and the first surface 31 is S1, at this time the left limiting component 4 is in the locked position, the first surface 31 on the left blocking component 3 and the limiting component 4 are in contact with each other through the buffer 91, so that the left blocking component 3 has no space to continue to move leftward, the moving component 2 and the trainee cannot move leftward, which is the first level of the leftward movement range, the zero position of the leftward movement;
[0119] (2) Similar to (1), when the right limiting component 4 corresponds to the height of the first surface 31 of the right blocking component 3, the right limiting component 4 is in the locked position, and the moving component 2 and the trainer cannot move to the right, which is the zero position for rightward movement;
[0120] (3) When (1) and (2) are satisfied at the same time, the moving part 2 can only be in the middle position and cannot move left or right, which is the zero position for left or right movement;
[0121] (4) When the left limiting component 4 is lowered to a certain height based on (1) and corresponds to the height of the second surface 32 of the left blocking component 3, the space between the left limiting component 4 and the second surface 32 is S2, and S2 is greater than S1, so that a certain space is released between the limiting component 4 and the second surface 32 of the left blocking component 3. The released space is the space that can be moved left and right. The moving component 2 and the trainee can move horizontally in the released space, which is the second level of the left movement range;
[0122] (5) When the left limiting component 4 is further lowered to a certain height based on (4) and corresponds to the height of the third surface 33 of the left blocking component 3, the space between the left limiting component 4 and the third surface 33 is S3, which is greater than S2. The moving range of the moving component 2 and the trainer is larger than that of (4), which is the third level of the leftward moving range.
[0123] (6) When the limiting component 4 on the left side is further lowered based on (5), it corresponds to the height of the fourth surface 34 in the blocking component 3 on the left side. At this time, the space S4 between the limiting component 4 on the left side and the fourth surface 34 is the maximum space from the limiting component 4 to the blocking component 3, which is the fourth level of the left movement range.
[0124] (7) When the left limiting component 4 is further lowered on the basis of (6) and is located below the blocking component 3, the left limiting component is in the release position and can no longer collide with the blocking component 3, thus completely releasing the freedom of the moving component to move to the left;
[0125] (8) When the limiting component 4 on one side is lowered to a certain height from the zero position, the limiting component 4 on the other side is at the zero position, thus achieving the adjustment of the unilateral movement range;
[0126] (9) When the limiting components 4 on both sides are lowered to the same height based on the zero position, corresponding to the step surfaces of the same height, symmetrical adjustment of the left and right moving ranges is achieved;
[0127] (10) When the limiting components 4 on both sides are lowered to different heights based on the zero position, corresponding to the step surfaces of different heights, asymmetric adjustment of the left and right moving ranges is achieved.
[0128] The limiting device 1000 provided in this embodiment has the following advantages:
[0129] 1. Horizontal translation distance adjustment can be achieved;
[0130] 2. The unilateral adjustment of the moving distance on the left and right sides can be realized;
[0131] 3. Symmetrical and asymmetric adjustment of the left and right moving distances can be achieved;
[0132] 4. It can be electrically adjusted through the driving component 51 and manually adjusted through the manual action part;
[0133] 5. When adjusting manually, it is possible to avoid pinching of the hand by the connecting rod 71.
[0134] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.
Claims
1. A limiting device for a training device, comprising a base and a moving part, wherein the moving part is movably arranged relative to the base and can move along a first direction, It is characterized in that The limiting device also includes: A blocking component connected to the moving component; The limiting component is used to collide with the blocking component to prevent the moving component from moving along the first direction. The limiting component is movably installed on the base to change the position of the part where the blocking component and the limiting component collide in the first direction.
2. The limiting device for a training apparatus according to claim 1, It is characterized in that The blocking component and / or the limiting component has a plurality of action sites for impact at different positions in the first direction; Alternatively, the limiting component is movably mounted on the base to change the position of the limiting component in the first direction.
3. The limiting device for training equipment according to claim 2, It is characterized in that The positions of the action sites on the same component in the first direction are: Continuously changing or discontinuously changing; and / or, monotonically varying.
4. The limiting device for a training apparatus according to claim 2, It is characterized in that The surfaces of the blocking component and / or the limiting component have a plurality of stepped surfaces to form different action locations; Alternatively, the movement path of the limiting component is perpendicular to the first direction, the limiting component has one action site, and the blocking component has a plurality of action sites.
5. The limiting device for a training apparatus according to claim 1, It is characterized in that The limiting device comprises two blocking components and two limiting components, and the blocking components correspond to the limiting components one by one, and the two limiting components are respectively used to prevent the moving component from moving forward and backward along the first direction.
6. The limiting device for a training apparatus according to claim 5, It is characterized in that The two limiting components are independent of each other or dynamically connected and move synchronously; And / or, the movement path of the limiting component has a locking position and / or a releasing position, when the limiting component is located at the locking position, the forward movement or reverse movement of the moving component corresponding to the limiting component along the first direction is locked; when the limiting component is located at the releasing position, the forward movement or reverse movement of the moving component corresponding to the limiting component is completely released.
7. The limiting device for a training apparatus according to claim 1, It is characterized in that The limiting device further comprises a buffer component. Among the limiting component and the blocking component, at least one component is provided with the buffer component, and the limiting component and the blocking component collide with each other through the buffer component.
8. The limiting device for a training apparatus according to claim 7, It is characterized in that The buffer member on at least one of the two components, the limiting component and the blocking component, is rotatably or fixedly arranged.
9. The limiting device for a training apparatus according to claim 7, It is characterized in that The action part of the blocking component used for colliding with the limiting component is covered by the buffer component; And / or, the buffer member on the limiting component has an arc-shaped buffer groove, and a buffer plane on the side facing the blocking component, and the limiting device also includes a buffer shaft, which is inserted into the buffer groove and fixed on the limiting component.
10. The limiting device for training equipment according to claim 1, It is characterized in that The limiting device further comprises a manual action part, the manual action part is dynamically connected to the limiting component, and the manual action part is used for installing a tool or for a person to hold; And / or, the limiting device further comprises a driving component, and the driving component is dynamically connected to the limiting component.
11. The limiting device for a training apparatus according to claim 10, It is characterized in that The limiting device further comprises a transmission mechanism, the transmission mechanism is dynamically connected to the limiting component, and the transmission mechanism is used to dynamically connect to the manual action part and / or the driving device of the limiting device.
12. The limiting device for training equipment according to claim 11, It is characterized in that The output end of the driving component is rotatably arranged relative to the base, the limiting component is movably arranged relative to the base, the transmission mechanism includes a matching screw rod and a slider, the screw rod is dynamically connected to the output end of the driving component, and the limiting component is arranged on the slider; The manual action part is dynamically connected to the screw rod.
13. The limiting device for training equipment according to claim 1, It is characterized in that The limiting device further comprises two connecting rods, and the moving component and the limiting component are respectively connected to the two connecting rods to form a four-bar linkage mechanism in the form of a parallelogram; The blocking component is arranged on the connecting rod or on the moving component.
14. The limiting device for a training apparatus according to claim 13, It is characterized in that The limiting device further comprises a manual action part, the manual action part is dynamically connected to the limiting component, and the manual action part is used for installing a tool or for a person to hold; The manual action portion is disposed on an outer side of the connecting rod in a direction perpendicular to the first direction.
15. The limiting device for training equipment according to claim 1, It is characterized in that The limiting component is self-locked by a locking component or other structure connected to the limiting component so as to be locked relative to the base.
16. The limiting device for training equipment according to claim 1, It is characterized in that The limiting device also includes a sensor, and the sensor is used to detect the position of the moving component relative to the base.
17. A training machine comprising a contact member for contacting a trainee, It is characterized in that The training machine further comprises a limiting device for training equipment according to any one of claims 1 to 16, wherein the contact part is dynamically connected to the moving part.
18. A training machine as claimed in claim 17, It is characterized in that The contact member is used to contact at least one of the legs, buttocks and abdomen of the trainee, and the first direction is parallel to the horizontal direction.