Multifunctional ankle pump exercise device

Abstract

This invention discloses a multifunctional ankle pump exercise device, including a leg support base and vertical side plates disposed on both sides of one end of the leg support base; an ankle pump exercise ring is hinged at both ends to the upper part of the two vertical side plates; first sensors are respectively disposed at the front and rear ends of the ankle pump exercise ring; second sensors are respectively disposed on the opposite inner surfaces of the vertical side plates; a heel placement mechanism is disposed on the foot support base between the two vertical side plates; a counter is disposed on one side of the leg support base; when the patient's foot performs ankle pump exercises, touching the first sensors on the ankle pump exercise ring and the second sensors on the vertical side plates, the counter will calculate and display the number of exercises and the duration of exercise; this ankle pump exercise device is not only suitable for patient rehabilitation in clinical settings, but also for daily health care in home settings. The design of the device integrates the principles of sports science and the actual needs of patients, providing an effective solution for the treatment and prevention of ankle joint problems.

Description

Technical Field

[0001] This invention belongs to the field of rehabilitation equipment, specifically a multifunctional ankle pump exercise device. Background Technology

[0002] Ankle injuries are among the most common sports injuries, involving damage to tendons, ligaments, and the joint itself.

[0003] Traditional ankle rehabilitation methods primarily rely on physical therapists providing manual guidance or using simple mechanical devices to assist patients in rehabilitation exercises. However, these methods often depend on the therapist's skill and experience, and patients often find it difficult to consistently perform effective rehabilitation training at home.

[0004] Existing ankle rehabilitation equipment typically focuses on single-movement training, such as providing support for only dorsiflexion or plantarflexion movements, lacking the ability to restore the full range of ankle mobility. Furthermore, these devices often lack real-time monitoring and feedback mechanisms, making it difficult to accurately record the patient's rehabilitation progress and adjust training plans according to the patient's actual recovery status.

[0005] Furthermore, patients often fail to receive sufficient foot support when using existing rehabilitation equipment, leading to poor training results or increased strain on the ankle joint. At the same time, many devices neglect the importance of providing a comfortable experience, which may cause discomfort for patients during rehabilitation, thus affecting rehabilitation outcomes and motivation.

[0006] Correct and efficient ankle pump exercises can:

[0007] Improve ankle flexibility: This exercise helps restore and improve the range of motion of the ankle joint, especially after injury or surgery.

[0008] Promotes blood circulation: The dorsiflexion and plantarflexion movements stimulate the calf muscle pump, helping to promote blood flow from the legs back to the heart, reducing blood stagnation in the lower limbs and preventing deep vein thrombosis.

[0009] Reduce swelling: Ankle pump exercises help reduce lower limb swelling caused by prolonged inactivity or injury.

[0010] Accelerate recovery: Regular ankle pump exercises can speed up the wound healing process, especially during postoperative recovery, and help you quickly return to normal activities. Summary of the Invention

[0011] The purpose of this invention is to provide a multifunctional ankle pump exercise device suitable not only for patient rehabilitation in clinical settings but also for daily health maintenance at home. The device's design integrates principles of sports science with the practical needs of patients, providing an effective solution for the treatment and prevention of ankle problems.

[0012] The technical solution adopted in this invention is as follows:

[0013] A multifunctional ankle pump exercise device includes a leg support base and vertical side plates disposed on both sides of one end of the leg support base; an ankle pump exercise ring is hinged to the upper part of the two vertical side plates at both ends; a first sensor is respectively disposed at the front and rear ends of the ankle pump exercise ring; a second sensor is respectively disposed on the opposite inner surfaces of the vertical side plates; a heel placement mechanism is disposed on the foot support base between the two vertical side plates; a counter is disposed on one side of the leg support base; when the patient's foot performs ankle pump exercises, when the first sensor on the ankle pump exercise ring and the second sensor on the vertical side plate are touched, the counter will calculate and display the number of exercises and the duration of exercise.

[0014] The leg support seat has an elastic support layer with an inwardly concave arc surface at the position corresponding to the patient's lower leg.

[0015] The leg support seat has an electric fumigation plate or electric heating plate at the front end corresponding to the patient's foot; the electric fumigation plate or electric heating plate is fixedly connected to the leg support seat through an elastic element.

[0016] The vertical side plate has a cavity inside. The ankle pump ring is rotatably connected to the shaft of the vertical side plate and is connected to a first guide wheel located inside the vertical side plate. A second guide wheel is fixed in the cavity of the vertical side plate by an elastic telescopic rod. The heel placement mechanism includes an arc-shaped support plate. The middle parts of both sides of the arc-shaped support plate are respectively hinged to one end of a connecting rod. The other end of the connecting rod is respectively hinged to a third guide wheel. The first guide wheel, the second guide wheel, and the third guide wheel are arranged in a triangle. A tension belt simultaneously tensions the first guide wheel, the second guide wheel, and the third guide wheel to support the arc-shaped support plate.

[0017] The vertical side plate has a groove vertically formed corresponding to the first guide wheel; the ankle pump ring and the first guide wheel can move up and down along the groove, and a spring is provided between the ankle pump ring and the bottom of the groove.

[0018] The front of the leg support seat is provided with a slot for the arc-shaped support plate to swing back and forth.

[0019] The upper part of the vertical side plate is provided with a chamfer to avoid obstructing the rotation of the ankle pump movement ring.

[0020] The ankle pump motion ring is rotatably connected to the vertical side plate at the outer side of the vertical side plate to avoid the ankle pump motion ring obstructing the second sensor.

[0021] The ankle pump exercise method is as follows:

[0022] ① The patient lies supine on the bed, with the ankle pump exercise device placed at the foot of the bed;

[0023] ② The patient places their lower leg on the elastic support surface, with their heel resting on the curved support plate, while their foot emerges upward from the center of the ankle pump movement ring;

[0024] ③ The patient performs a dorsiflexion exercise: Slowly raise the toes and pull them as far towards the lower leg as possible, so that the toes point towards the knee, until they touch or approach the first sensor at the rear end of the ankle pump motion ring and trigger the first sensor; during this process, you can feel the stretch on the back of the lower leg; hold this position for at least five seconds;

[0025] ④ The patient performs plantar flexion: From a dorsiflexion position, slowly push the toes down, extending them as close to the ground as possible, until the toes point towards the ground, until they touch or approach the first sensor at the front end of the ankle pump motion ring and trigger the first sensor; hold this position for at least five seconds;

[0026] ⑤ The patient uses the ankle joint as the center of force and rotates their toes in a 360-degree circle, alternating between clockwise and counterclockwise directions, trying to maintain the maximum range of motion. This requires triggering all the first and second sensors in sequence.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. This multi-functional ankle pump exercise device is designed to provide efficient and systematic rehabilitation training, and is particularly suitable for rehabilitation after ankle injuries or daily ankle health maintenance. The following are the main beneficial effects of this device:

[0029] Enhance ankle flexibility and stability: Through repeated dorsiflexion and plantarflexion movements, this device helps improve ankle flexibility and stability. These movements are essential for restoring and maintaining the normal range of motion of the ankle joint.

[0030] Promotes blood circulation: Ankle pump exercises can simulate the natural movement of the ankle joint during walking, thereby helping to promote blood circulation in the lower limbs, which is especially suitable for patients who are bedridden for a long time.

[0031] Precise motion monitoring: Integrated sensors and counters allow for precise monitoring of the number and duration of a patient's movements. This helps medical personnel assess the patient's recovery progress and adjust treatment plans as needed.

[0032] Supportive and comfortable design: The elastic support surface and curved support plate provide excellent support and comfort for patients, making long-term rehabilitation training possible. The concave curved design helps reduce pressure on the calf and avoids additional injury.

[0033] Promotes joint coordination and strength recovery: Through full-range ankle joint movement (including 360-degree circular movements), the device helps strengthen the muscles around the ankle joint and improve joint coordination.

[0034] Convenience of additional features: The electric fumigation plate or electric heating plate at the front of the leg support can provide users with additional comfort and therapeutic effects, such as promoting blood flow or relieving pain through heat therapy.

[0035] These features make this ankle pump exercise device suitable not only for patient rehabilitation in clinical settings but also for daily health care in home settings. The device's design integrates principles of sports science with the practical needs of patients, providing an effective solution for the treatment and prevention of ankle problems.

[0036] 2. The heel placement mechanism is a key component of the multifunctional ankle pump exercise device, primarily used to support and position the patient's heel, ensuring the correctness and efficiency of ankle joint movement. This mechanism includes a curved support plate, connecting rods, and three guide wheels (first guide wheel, second guide wheel, and third guide wheel), connected by a tension belt.

[0037] Provides stable and comfortable support: The curved support plate is ergonomically designed to conform to the natural curve of the heel, providing a comfortable and stable support base for patients and helping to reduce foot pressure and fatigue.

[0038] Ensuring range of motion and precision: Placing the heel on a support plate specifically designed for ankle movement ensures precision and effectiveness during dorsiflexion and plantarflexion movements, helping to fully activate the relevant muscles and ligaments.

[0039] Improving rehabilitation efficiency: Proper heel positioning and support help improve the targeting and efficiency of rehabilitation training, ensuring that patients can recover ankle function as quickly as possible under safe conditions.

[0040] The process of producing these effects

[0041] The curved support plate provides physical support for the heel, adapting to the natural shape of the heel through its curved design, reducing localized pressure points, and improving wearing comfort.

[0042] The linkage system works in conjunction with the guide wheels to support the dynamic adjustment of the curved support plate. This setup allows the heel to maintain the proper position and angle during ankle joint movements, supporting the patient in completing the required range of motion.

[0043] The guide wheels and tension belts ensure the stability and continuous movement of the mechanism, while the triangular layout of the guide wheels ensures the mechanical balance and smooth rotation of the heel placement mechanism during movement.

[0044] The organic combination and synergistic effect of each component

[0045] Structural stability: The vertical side plates are designed with cavities and an internal guide wheel system. This structure not only stabilizes the entire device but also provides necessary support and smooth rotation bearings for the ankle pump's motion ring and connecting rod.

[0046] Power transmission: Three guide pulleys connected by a tension belt form a closed loop, ensuring the heel placement mechanism maintains the correct force transmission path during ankle joint movement. This guarantees continuity of movement and constant support for the heel.

[0047] Adjustment and adaptability: Through the swing groove of the curved support plate and the elastic extension design of the guide wheel, the mechanism can adapt to the foot shape and movement needs of different patients, ensuring the possibility of individualized treatment.

[0048] In summary, the heel placement mechanism, through the coordinated work of its carefully designed components, not only improves the effectiveness of ankle joint movement but also increases comfort and safety during use. This design concept embodies the versatility and ergonomic application of modern rehabilitation equipment, aiming to provide patients with efficient and reliable rehabilitation support. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the overall appearance of the present invention;

[0050] Figure 2 This is a schematic diagram showing the state at the start of the ankle pump exercise according to the present invention;

[0051] Figure 3 This is a schematic diagram of the internal structure of the ankle pump exercise device of the present invention;

[0052] Figure 4 This is a schematic diagram showing the patient's state during dorsiflexion ankle pump exercises according to the present invention.

[0053] Figure 5 This is a schematic diagram showing the patient's state during ankle pump exercise with plantar flexion, as described in this invention.

[0054] The markings in the diagram are: 1. Leg support seat; 11. Elastic support surface layer; 12. Hollow groove; 2. Vertical side plate; 21. Second sensor; 22. Second guide wheel; 221. Elastic telescopic rod; 23. Sinking groove; 24. Spring; 25. Beveled angle; 3. Ankle pump motion ring; 31. First sensor; 32. First guide wheel; 4. Heel placement mechanism; 41. Arc support plate; 42. Connecting rod; 43. Third guide wheel; 44. Tension belt; 5. Counter; 6. Electric fumigation plate or electric heating plate; 61. Elastic element. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0056] See Figures 1 to 5 A multifunctional ankle pump exercise device includes a leg support base 1 and vertical side plates 2 disposed on both sides of one end of the leg support base 1. The leg support base 1 is made of a sturdy material such as steel or aluminum alloy, which can stably support the patient's leg. The support base is also equipped with a soft pad, which can be made of memory foam or polyurethane foam, to provide comfortable support.

[0057] The vertical side plates 2 are fixed to both sides of the leg support base 1. The vertical side plates 2 are made of high-strength plastic or metal materials and have sufficient strength to withstand the forces generated during exercise. The height and width of the vertical side plates are ergonomically designed to ensure that they can stably support the ankle pump movement ring 3.

[0058] The left and right ends of the ankle pump motion ring 3 are respectively connected to the upper part of the two vertical side plates 2 via hinge points. The ankle pump motion ring 3 is made of lightweight and strong materials such as aluminum alloy or engineering plastics, ensuring that it is both lightweight and durable during use. The hinge points use high-strength stainless steel hinges, and the hinges are coated with lubricating oil to ensure the flexible rotation of the motion ring.

[0059] The ankle pump motion ring 3 has first sensors 31 installed at both its front and rear ends to detect the amplitude and direction of the patient's foot movement. These sensors can be pressure sensors or infrared sensors, which emit a signal when the patient's toes touch the sensors. The sensors are connected to an electronic control unit via wires. The electronic control unit is mounted on the side of the device and is equipped with a processing chip and a battery, enabling it to process sensor data and display the results in real time.

[0060] Second sensors 21 are respectively provided on the opposite inner surfaces of the vertical side plate 2. These sensors are used to monitor the lateral displacement of the patient's ankle pump movement. The sensors are connected to the same electronic control unit via wires to ensure synchronized data processing. The second sensors are of the same type as the first sensors and can be highly sensitive infrared sensors.

[0061] A heel placement mechanism 4 is provided on the foot support seat 1 between the two vertical side plates 2. This heel placement mechanism includes a curved support plate 41 made of an elastic material such as silicone or soft foam to ensure comfortable heel placement. The dimensions of the curved support plate 41 are ergonomically designed to fully conform to the patient's heel area.

[0062] The middle sections of both sides of the arc-shaped support plate 41 are hinged to one end of a connecting rod 42. The connecting rod 42 is made of high-strength aluminum alloy, which has good durability and stability. The other end of the connecting rod 42 is hinged to a third guide wheel 43. The third guide wheel 43 is made of wear-resistant material to ensure smooth operation during movement.

[0063] A counter 5 is also installed on one side of the leg support base 1. The counter 5 is connected to the sensor wirelessly and can record and display data in real time. The counter 5 is powered by a built-in lithium battery and features a low-power design to ensure long-term use. The counter 5 is equipped with an LCD screen for users to easily view the number of exercises and the duration.

[0064] Furthermore, the leg support base 1 is provided with an elastic support surface 11 with an inwardly concave arc surface corresponding to the position of the patient's lower leg. This elastic support surface 11 is made of memory foam or other highly elastic materials, which can effectively support the patient's lower leg, provide a comfortable support feel, and reduce discomfort during long-term use. The elastic support surface 11 is fixed to the leg support base 1 with adhesive to ensure that it will not slide or shift.

[0065] Furthermore, an electric fumigation plate or electric heating plate 6 is provided at the front end of the leg support 1 corresponding to the patient's foot. This electric fumigation plate or electric heating plate 6 is fixedly connected to the leg support 1 via an elastic element 61. The electric fumigation plate or electric heating plate 6 has a built-in heating element, and the temperature is adjusted through a temperature control system to provide heat therapy or fumigation therapy to the patient's feet, helping to relieve foot fatigue, promote blood circulation, and improve treatment effectiveness. The elastic element 61 is made of highly elastic rubber material to ensure that the heating plate can conform to the foot and provide appropriate pressure.

[0066] Furthermore, the vertical side plate 2 has an internal cavity, the size of which is designed according to the dimensions of the guide wheel and the elastic telescopic rod to ensure that all components can be installed and operated smoothly. The shaft connecting the ankle pump motion ring 3 to the vertical side plate 2 is respectively connected to a first guide wheel 32 located inside the vertical side plate 2. The first guide wheel 32 is connected to the motion ring shaft through a rolling bearing, which is made of wear-resistant material to ensure smooth rotation.

[0067] A second guide wheel 22 is fixed within the cavity of the vertical side plate 2 by an elastic telescopic rod 221, which is made of a high-strength spring or hydraulic rod to provide appropriate elastic force. The second guide wheel 22, together with the first guide wheel 32 and the third guide wheel 43, forms a stable triangular structure. The tension belt 44 simultaneously tensions the first guide wheel 32, the second guide wheel 22, and the third guide wheel 43 to support the arc-shaped support plate 41. The tension belt 44 is made of wear-resistant rubber material to ensure good durability and stability during use.

[0068] Furthermore, a groove 23 is vertically formed on the vertical side plate 2 corresponding to the first guide wheel 32, allowing the ankle pump motion ring 3 and the first guide wheel 32 to move up and down along the groove 23. The groove 23 design allows the motion ring to move freely in the vertical direction. A spring 24 is provided between the first guide wheel 32 and the bottom of the groove 23 to provide appropriate resistance and rebound force, increasing the effectiveness and safety of the exercise. The spring 24 is made of high-strength alloy material to ensure that it will not deform or fail during frequent use.

[0069] Furthermore, the front of the leg support seat 1 is provided with a slot 12 for the curved support plate 41 to swing back and forth. This slot 12 ensures that the curved support plate 41 can swing freely back and forth to adapt to the foot position and movement needs of different patients. The edges of the slot 12 are rounded to prevent scratches during patient use.

[0070] Furthermore, the upper part of the vertical side plate 2 is provided with a chamfered angle 25 to avoid obstructing the rotation of the ankle pump motion ring 3, ensuring that the motion ring can rotate freely without obstruction when the patient performs ankle pump exercises. The chamfered angle 25 is designed by precise cutting using a CNC machine tool to ensure the accuracy of its angle and position.

[0071] Furthermore, the rotatable connection between the ankle pump motion ring 3 and the vertical side plate 2 is on the outer side of the vertical side plate 2, to prevent the ankle pump motion ring 3 from obstructing the second sensor 21 and to ensure that the sensor can accurately detect the patient's movement. The connection is secured with high-strength bolts to ensure its firmness and durability. A protective cover is also provided at the connection to prevent the patient from accidentally touching it.

[0072] Furthermore, the ankle pump exercise method is as follows:

[0073] The patient lies supine on the bed, and the ankle pump exercise device is placed at the foot of the bed, ensuring that the device is placed stably and will not slip.

[0074] The patient places their lower leg on the elastic support surface 11, with their heel resting on the curved support plate 41, while their foot emerges upward from the center of the ankle pump motion ring 3. The position is adjusted so that both the lower leg and the foot can be comfortably placed.

[0075] The patient performs a dorsiflexion exercise: Slowly raise the toes, pulling them as far towards the calf as possible, until the toes point towards the knee, until they touch or approach the first sensor 31 at the rear end of the ankle pump motion ring and trigger the first sensor 31. During this process, the patient can feel a stretch in the back of the calf. Hold this position for at least five seconds to feel the stretching effect.

[0076] The patient performs plantar flexion: From a dorsiflexion position, slowly push the toes down, extending them as close to the ground as possible, until the toes point towards the ground, until they touch or approach the first sensor 31 at the front end of the ankle pump motion ring and trigger the first sensor 31. Hold this position for at least five seconds and feel the muscles relax.

[0077] The patient uses the ankle joint as the center and rotates the toes in a 360-degree circle, alternating between clockwise and counterclockwise directions, trying to maintain the maximum range of motion. All the first sensors 31 and the second sensors 21 need to be triggered in sequence to ensure that the ankle joint is fully exercised in all directions.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional ankle pump exercise device, characterized in that: Includes a leg support base (1), vertical side plates (2) disposed on both sides of one end of the leg support base (1); an ankle pump motion ring (3) hinged at both ends to the upper part of the two vertical side plates (2); a first sensor (31) is respectively disposed at the front and rear ends of the ankle pump motion ring (3); a second sensor (21) is respectively disposed on the opposite inner surfaces of the vertical side plates (2); a heel placement mechanism (4) is disposed on the leg support base (1) between the two vertical side plates (2); the leg support base (1) includes a leg support base (1), vertical side plates (2) and vertical side plates (2) respectively; the ankle pump motion ring (3) is respectively disposed at the front and rear ends of the ankle support base (1); the ankle pump motion ring (3) is respectively disposed at the front and rear ends of the ankle support base (1); the ankle pump motion ring (3) is respectively disposed at the front and rear ends of the ankle support base (1); the ankle pump motion ring (3) is respectively disposed at the front and rear ends of the ankle support base (1); the ankle pump motion ring (3) is respectively disposed at the opposite inner surfaces of the vertical side plates (2); the ankle pump motion ring (3) is respectively disposed at the opposite inner surfaces of the ankle support base (1 ... A counter (5) is provided on one side of the support seat (1); when the patient's foot performs ankle pump exercises, the counter (5) will calculate and display the number of movements and the duration of the exercises when the patient touches the first sensor (31) on the ankle pump exercise ring (3) and the second sensor (21) on the vertical side plate (2); an elastic support layer (11) with an inward arc surface is provided on the leg support seat (1) corresponding to the position of the patient's lower leg; an electric heating pad is provided at the front end of the leg support seat (1) corresponding to the position of the patient's sole. Steaming plate or electric heating plate (6); the electric steaming plate or electric heating plate (6) is fixedly connected to the leg support seat (1) through an elastic element (61); the vertical side plate (2) has a cavity inside, and the ankle pump movement ring (3) is rotatably connected to the shaft of the vertical side plate (2) and a first guide wheel (32) located in the vertical side plate (2); a second guide wheel (22) is fixed in the cavity of the vertical side plate (2) through an elastic telescopic rod (221); the heel placement mechanism ( 4) Includes an arc-shaped support plate (41); the middle parts of both sides of the arc-shaped support plate (41) are respectively hinged to one end of a connecting rod (42); the other end of the connecting rod (42) is respectively hinged to a third guide wheel (43); the first guide wheel (32), the second guide wheel (22) and the third guide wheel (43) are arranged in a triangle; a tension belt (44) simultaneously tensions the first guide wheel (32), the second guide wheel (22) and the third guide wheel (43) to support the arc-shaped support plate (41).

2. The multifunctional ankle pump exercise device as described in claim 1, characterized in that: The vertical side plate (2) is vertically provided with a groove (23) corresponding to the first guide wheel (32); the ankle pump motion ring (3) and the first guide wheel (32) can move up and down along the groove (23), and a spring (24) is provided between the ankle pump motion ring (3) and the bottom of the groove (23).

3. The multifunctional ankle pump exercise device as described in claim 2, characterized in that: The front of the leg support seat (1) is provided with a slot (12) for the arc-shaped support plate (41) to swing back and forth.

4. The multifunctional ankle pump exercise device as described in claim 3, characterized in that: The upper part of the vertical side plate (2) is provided with a chamfer (25) to avoid obstructing the rotation of the ankle pump motion ring (3).

5. The multifunctional ankle pump exercise device as described in claim 4, characterized in that: The rotatable connection between the ankle pump motion ring (3) and the vertical side plate (2) is the outer side of the vertical side plate (2) to avoid the ankle pump motion ring (3) blocking the second sensor (21).

6. The multifunctional ankle pump exercise device as described in claim 5, characterized in that: The ankle pump exercise method is as follows: ① The patient lies supine on the bed, with the ankle pump exercise device placed at the foot of the bed; ② The patient places their lower leg on the elastic support surface (11), with their heel on the curved support plate (41), and their foot passes upward from the center of the ankle pump motion ring (3); ③ The patient performs a dorsiflexion movement: Slowly raise the toes and pull them towards the lower leg as much as possible, so that the toes point towards the knee, until they touch or approach the first sensor (31) at the rear end of the ankle pump motion ring and trigger the first sensor (31); during this process, the patient can feel the stretch on the back of the lower leg; hold this position for at least five seconds; ④ The patient performs plantar flexion: From a dorsiflexion position, slowly push the toes down and extend them as far as possible toward the ground, so that the toes point toward the ground, until they touch or approach the first sensor (31) at the front end of the ankle pump motion ring and trigger the first sensor (31); hold this position for at least five seconds; ⑤ The patient uses the ankle joint as the center of force and makes a 360-degree circle with the toes, alternating between clockwise and counterclockwise directions, trying to maintain the maximum range of motion. All the first sensors (31) and the second sensors (21) need to be triggered in sequence.

Images