A magnetic quick-release restraint locking device and rescue platform for field environments

Abstract

The application provides a magnetic quick-release restraint locking device and a rescue platform for a field environment, and belongs to the technical field of medical instruments. The magnetic quick-release restraint locking device for the field environment comprises a magnetic quick-release mechanism and a male head. The magnetic quick-release mechanism comprises a female seat, a mechanical locking mechanism, a magnetic attraction mechanism and an adjusting mechanism. The rescue platform for the field environment comprises a waist restraint belt assembly connected with the male head. The male head is connected in the female seat. In the above scheme, the adjusting mechanism is arranged. The magnetic attraction force between the magnetic attraction mechanism and the male head can be adjusted by rotating the adjusting mechanism. The purpose of adjusting the magnetic attraction force between the magnetic attraction mechanism and the male head is to adaptively adjust the demagnetization force according to the body weight of medical staff. The magnetic attraction force between the magnetic attraction mechanism and the male head can be instantaneously adjusted to be minimized or the magnetic attraction force on the male head can be removed through a straight-line pulling action. Moreover, the mechanical locking mechanism can be synchronously controlled to remove the mechanical locking on the male head.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a magnetic quick-release restraint and locking device and a rescue platform for use in field environments. Background Technology

[0002] When an ambulance is traveling on bumpy roads, it is necessary to maintain a constant relative position between medical personnel and the injured or sick in order to perform procedures such as cardiopulmonary resuscitation, endotracheal intubation, wound suturing, and intravenous administration.

[0003] In existing technology, one end of a multi-joint support arm is connected to the ambulance, and the other end is connected to the medical personnel via a lumbar restraint belt assembly. The multi-joint support arm and the lumbar restraint belt assembly are connected by a magnetic quick-release interface. The release force of the existing magnetic quick-release interface is a fixed preset value and cannot be adjusted according to the weight of the medical personnel. This leads to the following problems: For heavier medical personnel, the inertial force generated during sudden braking is large. If the preset demagnetizing force is small, accidental disengagement is likely to occur. For lighter medical personnel, in extreme situations such as rollovers or falling into water, if they cannot exert force in their waist or have limited strength due to body position, and the preset demagnetizing force is large, they cannot quickly disengage, affecting escape efficiency. Summary of the Invention

[0004] This invention provides a magnetic quick-release restraint locking device and rescue platform for field environments, to solve the problem that when the multi-joint support arm and the lumbar restraint belt assembly are connected by a traditional magnetic quick-release interface, medical personnel cannot quickly detach themselves in emergency situations using only lumbar strength.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A magnetic quick-release restraint locking device for field environments includes a magnetic quick-release mechanism and a male connector. The magnetic quick-release mechanism includes a female connector, and a mechanical locking mechanism is installed inside the female connector. The mechanical locking mechanism includes an elastic anti-disengagement buckle disposed in the female connector. The male connector is provided with an annular groove and a magnetic ring. The elastic anti-disengagement buckle engages with or disengages from the annular groove.

[0007] The magnetic attraction mechanism includes a second cam, which is fixedly installed in the female seat. The second cam is provided with an arc-shaped guide rail. A moving magnetic attracting component and a moving magnetic repulsion component are slidably installed in the arc-shaped guide rail. A limiting structure is fixedly installed in the female seat. The moving magnetic attracting component and the moving magnetic repulsion component are slidably arranged in the limiting groove of the limiting structure.

[0008] The adjustment mechanism includes an adjustment rod inserted into the female seat. The adjustment rod is driven by the second cam. The rotation of the second cam causes the moving magnetic attracting component and the moving magnetic repulsing component to move along the limiting groove toward the magnetic ring of the male head. The adjustment rod is provided with an emergency release pin. When the adjustment rod moves upward, the emergency release pin causes the elastic anti-detachment buckle to disengage from the annular groove.

[0009] Optionally, the female base includes a bottom shell, a limiting structure, an inner liner shell, and a top cover. The limiting structure and the inner liner shell are both fixedly connected to the bottom shell. The top cover is fixedly connected to the inner liner shell. The inner liner shell abuts against the limiting structure. The surface of the limiting structure is provided with a magnetic shielding plate, a static magnetic suction element, and a radial guide rail. The inner liner shell is provided with a limiting groove.

[0010] Optionally, the male head has an annular groove on its side, and the mechanical locking mechanism includes an elastic anti-detachment buckle inserted into the inner liner shell. The elastic anti-detachment buckle is connected to the annular groove, and the surface of the elastic anti-detachment buckle is provided with an irregular groove, which is composed of a straight groove and a wedge-shaped groove.

[0011] Optionally, the adjustment mechanism includes an adjustment rod inserted into the female seat and a fourth spur gear rotatably connected to the female seat. The surface of the fourth spur gear is fixedly connected to a pin for insertion into a slot at the end of the adjustment rod. The surface of the adjustment rod is fitted with an emergency release pin and a spring core. The emergency release pin includes an outer shell and an inner core fitted onto the surface of the adjustment rod. The outer shell is inserted into the limiting slot, and the inner core is slidably connected to the outer shell. A protruding structure is provided on the surface of the inner core at a position corresponding to the straight slot. A retaining ring is fixedly provided on the surface of the adjustment rod. The spring core is used to abut one end of the adjustment rod against the bottom shell. The other end of the adjustment rod is connected to a knob structure, and a pull ring is connected to the surface of the knob structure.

[0012] Optionally, the magnetic attraction mechanism includes a magnetic attraction part, a second cam, and an emergency demagnetizing gear set. The magnetic attraction part is connected to the second cam, the second cam is connected to the bottom shell, the emergency demagnetizing gear set is installed on the back of the limiting structure, the magnetic attraction part is slidably connected in the first radial guide rail, the second cam is provided with a first tooth groove and a second tooth groove, one side of the emergency demagnetizing gear set is drivenly connected to the second tooth groove, the fourth spur gear is drivenly connected to the first tooth groove, and a plurality of static magnetic attraction components and a plurality of magnetic attraction parts are symmetrically distributed about the second cam axis.

[0013] Optionally, the adjusting rod has several annular grooves, and after disengaging from the insertion pin, the adjusting rod is connected to the other side of the emergency demagnetizing gear set through the annular grooves.

[0014] Optionally, the magnetic attraction part includes a movable carrier slidably connected to the cam, and a moving magnetic attracting member and a moving magnetic repulsion member with opposite magnetic properties are fixedly connected to the movable carrier. A magnetic ring is provided at the male end, and the moving magnetic attracting member has the opposite magnetic properties to the magnetic ring. The magnetic shielding plate and the inner liner shell are used to shield the moving magnetic repulsion member and the moving magnetic attracting member, respectively.

[0015] Optionally, the mechanical locking mechanism further includes a cam 1 slidably disposed within the inner liner shell, a plurality of elastic anti-disengagement buckles connected to the cam 1, and a radial guide rail 2 provided on the inner wall of the inner liner shell, with the elastic anti-disengagement buckles inserted into the radial guide rail 2.

[0016] Optionally, the bottom shell has an arc-shaped hole on its side, and the two sides of the cam have indicators for indicating the demagnetizing force level, the indicators being slidably connected in the arc-shaped hole.

[0017] A medical treatment platform for field environments includes a waist restraint belt assembly and a multi-joint support arm, wherein the waist restraint belt assembly is connected to a male connector and the multi-joint support arm is connected to a female connector.

[0018] The beneficial effects of the above-mentioned technical solution of the present invention are as follows:

[0019] In the above solution, by setting an adjustment mechanism, the lifting action of the adjustment mechanism can control the moving magnetic suction component to move completely into the inner liner shell and the moving magnetic repulsion component to be completely exposed to the magnetic shielding plate. This allows the magnetic attraction force to be minimized or released, while the protruding structure of the inner core slides into the wedge groove of the elastic anti-detachment buckle, forcing the elastic anti-detachment buckle to disengage from the annular groove of the male head. In the event of accidents such as rollover, side rollover, or falling into water, even if the medical staff cannot exert force normally in their waist, or if the buckle of the waist restraint belt is blocked and cannot be directly unbuckled, quick detachment can be achieved. This solution is characterized by easy operation and high escape efficiency.

[0020] By setting an adjustment mechanism, the rotation of the adjustment mechanism can adjust the magnetic attraction between the magnetic attraction mechanism and the male head, and then adaptively adjust the demagnetizing force according to its own weight. This prevents the risk of accidental disengagement for heavier medical staff when the vehicle is moving violently, and prevents the risk of medical staff with less weight or strength being unable to quickly disengage in extreme situations such as rollover or falling into water, thus improving the reliability of daily use.

[0021] By setting an adjustment mechanism, the inner core of the adjustment mechanism slides due to inertia when the vehicle moves violently. The raised structure and straight groove automatically limit the elastic anti-disengagement buckle, which enhances the reliability of the mechanical limit and further prevents accidental disengagement when the vehicle moves violently. It has the characteristics of high reliability and high safety. Attached Figure Description

[0022] Figure 1This is a first-person perspective three-dimensional structural diagram of the relatively fixed operating platform for medical personnel in an ambulance according to the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram showing the separation of the male connector and the magnetic quick-release mechanism of the present invention;

[0024] Figure 3 This is a cross-sectional perspective view of the three-dimensional structure of the male connector and the magnetic quick-release mechanism of the present invention.

[0025] Figure 4 This is an exploded view of the female base of the present invention;

[0026] Figure 5 This is an enlarged three-dimensional structural diagram of the adjustment mechanism, mechanical locking mechanism, and magnetic attraction mechanism of the present invention.

[0027] Figure 6 This is a three-dimensional structural schematic diagram of the adjustment mechanism of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the mechanical locking mechanism of the present invention;

[0029] Figure 8 This is a three-dimensional structural diagram of the magnetic attraction mechanism of the present invention;

[0030] Figure 9 This is a cross-sectional three-dimensional structural diagram of the adjustment mechanism and the elastic anti-detachment buckle of the present invention.

[0031] Figure 10 This is an enlarged cross-sectional planar structural diagram of the elastic anti-loosening buckle, inner core, and protruding structure of the present invention;

[0032] Figure 11 This is a side view of the magnetic quick-release mechanism of the present invention;

[0033] Figure 12 This is a cross-sectional planar structural diagram of the male connector and the magnetic quick-release mechanism of the present invention.

[0034] Figure 13 This is a two-dimensional structural diagram of the relatively fixed operating platform for medical personnel in an ambulance according to the present invention, from a second perspective.

[0035] Figure 14 For the present invention Figure 8 A magnified view of a portion of point a.

[0036] [Figure Labels]

[0037] 1. Multi-joint support arm; 2. Magnetic quick-release mechanism; 21. Female seat; 211. Bottom shell; 2111. Arc-shaped hole; 212. Limiting structure; 2121. Magnetic shielding plate; 2122. Static magnetic suction component; 2123. Radial guide rail one; 213. Inner liner shell; 2131. Radial guide rail two; 2132. Limiting groove; 214. Top cover; 22. Adjustment mechanism; 221. Adjustment rod; 2211. Retaining ring; 222. Annular toothed groove; 223. Emergency release pin; 2231. Outer shell; 2232. Inner core; 2233. Protruding structure; 224. Knob structure; 225. Pull ring; 226. Spring core; 227. Fourth spur gear; 2271. Insert pin; 23. Mechanical locking mechanism; 231. Elastic Anti-detachment buckle; 2311, irregular groove; 23111, straight groove; 23112, wedge groove; 232, cam one; 24, magnetic attraction mechanism; 241, magnetic attraction part; 2411, moving carrier; 2412, moving magnetic attraction component; 2413, moving magnetic repulsion component; 242, cam two; 2421, first tooth groove; 2422, second tooth groove; 243, emergency demagnetizing gear set; 2431, first spur gear; 2432, second spur gear; 2433, first transmission rod; 2434, first bevel gear; 2435, second bevel gear; 2436, second transmission rod; 2437, third spur gear; 244, indicator; 3, waist restraint belt assembly; 31, male end; 311, annular groove; 312, magnetic ring. Detailed Implementation

[0038] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0039] This invention relates to a magnetic quick-release restraint and locking device and a medical treatment platform for field environments. Addressing the core needs of medical support and combat casualty treatment, it designs ambulances and mobile medical treatment platforms for future military and disaster conditions. In dynamic, complex, and high-intensity battlefields or disaster sites, the ability to rapidly evacuate and continuously treat the wounded directly impacts combat casualty mortality and disability rates. This invention, through its magnetic quick-release structure, achieves rapid and stable restraint and unlocking of wounded personnel on a mobile medical treatment platform. This avoids secondary injuries to wounded personnel caused by traditional binding methods in bumpy environments and significantly improves the operational efficiency of medical personnel in confined spaces. Figures 1 to 13As shown, an embodiment of the present invention provides a magnetic quick-release restraint locking device for field environments, including a magnetic quick-release mechanism 2 and a male connector 31. The magnetic quick-release mechanism 2 includes a female connector 21, and the male connector 31 is connected within the female connector 21. A mechanical locking mechanism 23 is used to mechanically lock the male connector 31, and the mechanical locking mechanism 23 is connected to the female connector 21. A magnetic attraction mechanism 24 is used to magnetically lock the male connector 31, and the magnetic attraction mechanism 24 is connected to the female connector 21. An adjusting mechanism 22 is included; the rotational action of the adjusting mechanism 22 is used to adjust the magnetic attraction force between the magnetic attraction mechanism 24 and the male connector 31, and the linear lifting action of the adjusting mechanism 22 is used to simultaneously release the locking of the male connector 31 by the mechanical locking mechanism 23 and the magnetic attraction mechanism 24. The adjusting mechanism 22 is connected to both the mechanical locking mechanism 23 and the magnetic attraction mechanism 24.

[0040] A medical treatment platform for field environments includes a multi-joint support arm 1 and a waist restraint belt assembly 3. One end of the multi-joint support arm 1 is connected to the ambulance floor, and the other end of the multi-joint support arm 1 is connected to a female seat 21. The waist restraint belt assembly 3 is connected to a male connector 31.

[0041] This application, by setting an adjustment mechanism 22, can not only adjust the magnetic attraction between the magnetic attraction mechanism 24 and the male head 31 by rotating the adjustment mechanism 22, and the purpose of adjusting the magnetic attraction between the magnetic attraction mechanism 24 and the male head 31 is to adaptively adjust the demagnetizing force according to the weight of the medical staff, but also adjust the magnetic attraction between the magnetic attraction mechanism 24 and the male head 31 to the minimum or release the magnetic attraction on the male head 31 instantly by pulling the adjustment mechanism 22 in a straight line, and can simultaneously control the mechanical locking mechanism 23 to release the mechanical locking on the male head 31.

[0042] In this embodiment, as Figure 1 and Figure 13 As shown, the lumbar restraint belt assembly 3 is worn on the waist of medical personnel. The lumbar restraint belt assembly uses an arc-shaped support plate and memory foam design to distribute pressure. The multi-joint support arm 1 has at least four rotational degrees of freedom and one extensional degree of freedom. It not only supports 30-50% of the body weight, reducing the burden on the lower limbs, but also facilitates the operation of medical personnel in a position next to the stretcher. The multi-joint support arm 4 uses a robotic arm as described in existing technology, which will not be elaborated upon in this application. One end of the multi-joint support arm 4 is connected to the lumbar restraint belt assembly 3 via a magnetic quick-release mechanism 2, and the other end is connected to the track slide assembly via a universal joint. The track slide assembly mates with the standard track on the ambulance floor. The multi-joint support arm 1 uses friction damping locking; the joint flexible locking allows for slight compliance to reduce continuous muscle tension, allowing slight compliant movement under normal operating force, and maintaining rigid locking under impact force.

[0043] like Figure 3 and Figure 4As shown, the female base 21 includes a bottom shell 211, with the end of the multi-joint support arm 1 connected to the bottom shell 211. The top cover 214, the inner liner shell 213, and the bottom shell 211 are detachably connected. A limiting structure 212 is installed inside the bottom shell 211, and the end of the inner liner shell 213 facing away from the top cover 214 abuts against the limiting structure 212. The surface of the limiting structure 212 is provided with a magnetic shielding plate 2121 and several static magnetic suction elements 2122 and radial guide rail 1 2123 symmetrically distributed about the center of the magnetic shielding plate 2121. The inner liner shell 213 is provided with a limiting groove 2132 and a radial guide rail 2131. The bottom shell 211, the limiting structure 212, the inner liner shell 213 and the top cover 214 adopt a detachable connection structure to facilitate the disassembly and maintenance of the internal mechanical locking mechanism 23, magnetic attraction mechanism 24 and adjustment mechanism 22. The static magnetic attraction component 2122 is a magnet block fixed on the surface of the limiting structure 212. Several fixed magnet blocks serve as the basic magnetic attraction force of the male head 31 and cannot be adjusted. The two ends of the radial guide rail 2123 can extend to the bottom of the magnetic shielding plate 2121 and the inner liner shell 213 respectively.

[0044] like Figure 3 As shown, the male connector 31 has an annular groove 311 on its side. The mechanical locking mechanism 23 includes an elastic anti-disengagement buckle 231 inserted into the radial guide rail 2131 and a cam 232 slidably disposed in the inner liner shell 213. The elastic anti-disengagement buckle 231 is connected to the annular groove 311. Figure 7 As shown, the surface of the elastic anti-detachment buckle 231 is provided with an irregular groove 2311, which consists of a straight groove 23111 and a wedge-shaped groove 23112. The straight groove 23111 is distributed on the side near the magnetic attraction mechanism 24. Several elastic anti-detachment buckles 231 are connected to the cam 232. A spring is installed inside the elastic anti-detachment buckle 231. The two ends of the spring are connected to the elastic anti-detachment buckle 231 and the radial guide rail 2131, respectively. The radial force of the spring drives the elastic anti-detachment buckle 231 to insert into the annular groove of the male head 31, thereby playing a mechanical locking role. The straight groove 23111 is distributed on the side near the magnetic attraction mechanism 24 so that when the adjusting mechanism 22 performs a linear lifting movement, it can first contact the straight groove 23111 and then enter the wedge-shaped groove 23112 along the straight groove 23111.

[0045] In this embodiment, the width of the annular groove 311 is generally greater than the height or thickness of the elastic anti-detachment buckle 231, in order to achieve the effect of demagnetization before mechanical unlocking. The connection between the straight groove 23111 and the wedge-shaped groove 23112 is smoothly transitioned. The cam 232 is a transmission ring with an arc-shaped guide rail on its surface, which is common in the prior art. The elastic anti-detachment buckle 231 is slidably connected to the arc-shaped guide rail by a structure such as a fixing pin, and can play a role in transmission and maintaining coordinated movement in the mechanical locking mechanism 23. When the adjusting mechanism 22 controls the movement or locking of the elastic anti-detachment buckle 231 connected to it through the irregular groove 2311, the moving elastic anti-detachment buckle 231 can drive the other elastic anti-detachment buckles 231 to move synchronously or remain locked through the cam 232.

[0046] like Figure 3 and Figure 6 As shown, the adjustment mechanism 22 includes an adjustment rod 221 inserted into the female seat 21 and a fourth spur gear 227 rotatably connected to the female seat 21. The surface of the fourth spur gear 227 is fixedly connected to a pin 2271 for insertion into a groove at the end of the adjustment rod 221. An emergency release pin portion 223 and a spring core 226 are sleeved on the surface of the adjustment rod 221. The emergency release pin portion 223 includes an outer shell 2231 and an inner core 2232 sleeved on the surface of the adjustment rod 221. The outer shell 2231 is inserted into a limiting groove 2132, and the inner core 2232 is slidably connected within the outer shell 2231. A protruding structure 2233 is provided on the surface of the inner core 2232 at a position corresponding to the straight groove 23111. Two sets of retaining rings 2211 are fixedly provided on the surface of the adjusting rod 221 for axial limiting of the outer shell 2231. The other end of the adjusting rod 221 is connected to a knob structure 224, and a pull ring 225 is connected to the surface of the knob structure 224. The spring core 226 in the adjusting mechanism 22 abuts one end of the adjusting rod 221 against the bottom shell 211 to prevent the adjusting rod 221 from axially displacing under conditions such as acceleration, braking, or severe impact of the ambulance. Only when medical personnel apply a certain pulling force through the pull ring 225 can the adjusting rod 221 be controlled to make linear movement. When the ambulance is in normal operation or stationary state, the inner core 2232 contacts the side of the outer shell 2231 away from the elastic anti-disengagement buckle 231. Although the protruding structure 2233 is aligned with or corresponds in position to the straight groove 23111 (e.g. Figure 9 and Figure 10As shown), but located outside the straight groove 23111, when the ambulance suddenly accelerates, brakes, or experiences a side impact, although the adjusting rod 221 and the outer shell 2231 remain relatively stationary with the ambulance through the female seat 21 and the multi-joint support arm 1, the inner core 2232 can slide within the outer shell 2231 under the action of inertial force. The protruding structure 2233 sliding into the straight groove 23111 is used to limit the elastic anti-disengagement buckle 231, which can maintain the mechanical locking of the male head 31 under extreme situations such as sudden acceleration, braking, and side impact of the ambulance, preventing the risk of medical personnel accidentally falling. After the ambulance returns to normal operation, the automatic fall of the inner core 2232 under the action of gravity will move the protruding structure 2233 out of the straight groove 23111 (as shown). Figure 10 As shown), this automatically releases the limit on the elastic anti-loosening buckle 231.

[0047] like Figures 3 to 6 As shown, a ratchet is provided on the knob structure 224, and a ratchet tooth is provided on the top cover 214 at the corresponding position. Both the ratchet and the ratchet tooth adopt existing technology, which will not be described in detail in this application. The ratchet and ratchet tooth are used to limit the circumferential movement of the adjusting rod 221. On the one hand, this ensures that only medical personnel can control the rotation of the knob structure 224 and the adjusting rod 221 with a certain torque. On the other hand, since the outer shell 2231 is inserted into the limiting groove 2132, and both the outer shell 2231 and the inner core 2232 are polyhedral structures, both the outer shell 2231 and the inner core 2232 can only exhibit linear movement. When an ambulance overturns, preventing medical personnel from using their waist to pull the male head 31 out of the female seat 21, or when the waist support buckle is blocked by an obstacle and cannot be unfastened, or when the protruding structure 2233 cannot automatically move out of the straight groove 23111, medical personnel can also choose to pull the adjusting rod 221 through the pull ring 225. The adjusting rod 221, which is pulled and moves in a straight line, can control the outer shell 2231 to move synchronously through the retaining ring 2211. Even if the protruding structure 2233 is in the straight groove 23111 at this time, the moving outer shell 2231 will drive the protruding structure 2233 to slide from the straight groove 23111 into the wedge groove 23112 from the moment it contacts the inner core 2232. The wedge groove 23112 will then apply pressure to the elastic anti-disengagement buckle 231, forcing it to disengage from the annular groove 311, thereby achieving the purpose of quick unlocking.

[0048] like Figure 3 , Figure 8 and Figure 14 As shown, the magnetic attraction mechanism 24 includes a magnetic attraction part 241, a second cam 242, and an emergency demagnetizing gear set 243. The magnetic attraction part 241 is connected to the second cam 242, and the second cam 242 is connected to the bottom shell 211. The emergency demagnetizing gear set 243 is mounted on the back of the limiting structure 212. The magnetic attraction part 241 is slidably connected within the radial guide rail 2123 (e.g., ...). Figure 3 As shown), the cam 242 is provided with a first tooth groove 2421 and a second tooth groove 2422. One side of the emergency demagnetizing gear set 243 is connected to the second tooth groove 2422. The fourth spur gear 227 is connected to the first tooth groove 2421. The radial guide rail 2123 is used to ensure that the magnetic suction part 241 moves in a straight line.

[0049] In this embodiment, the second cam 242 is also a transmission ring with an arc-shaped guide rail on its surface, which is common in the prior art. The magnetic suction part 241 is slidably connected to the arc-shaped guide rail through a structure such as a fixing pin, and can play a role in transmission and maintaining motion coordination in the magnetic suction mechanism 24. The emergency demagnetizing gear set 243 includes a first spur gear 2431, a second spur gear 2432, a first transmission rod 2433, a first bevel gear 2434, a second bevel gear 2435, a second transmission rod 2436, and a third spur gear 2437. The shafts of the first transmission rod 2433, the second transmission rod 2436, and the first spur gear 2431 are all rotatably connected to the back of the limiting structure 212. The second spur gear 2432 and the first bevel gear 2434 are respectively fixedly installed at both ends of the first transmission rod 2433. The second bevel gear 2435 and the third spur gear 2437 are respectively fixedly installed at both ends of the second transmission rod 2436. The first spur gear 2431...

[0050] For example Figure 3 , Figure 6 and Figure 14 As shown, the adjusting rod 221 has several annular toothed grooves 222. After disengaging from the insertion pin 2271, the adjusting rod 221 is connected to the other side of the emergency demagnetizing gear set 243 through the annular toothed grooves 222. When the rotation of the adjusting rod 221 controls the rotation of the cam 242 via the fourth spur gear 227 and the first tooth groove 2421, the purpose is to allow medical staff to adaptively adjust the demagnetizing force according to their own weight. Through a linear lifting action, the insertion hole at the end of the adjusting rod 221 is disengaged from the insertion pin 2271. The moving adjusting rod 221 drives the first spur gear 2431 to rotate via the annular tooth groove 222. The rotating first spur gear 2431 controls the rotation of the cam 242 via the second spur gear 2432, the first transmission rod 2433, the first bevel gear 2434, the second bevel gear 2435, the second transmission rod 2436, the third spur gear 2437, and the second tooth groove 2422. The purpose is to minimize or release the magnetic attraction force between the magnetic attraction mechanism 24 and the male head 31 in an emergency.

[0051] like Figure 8 , Figure 12 and Figure 14As shown, the magnetic suction part 241 includes a movable carrier 2411 slidably connected to the cam 242. A moving magnetic suction member 2412 and a moving magnetic repulsion member 2413 with opposite magnetic properties are fixedly connected to the movable carrier 2411. A magnetic ring 312 is provided at the end of the male connector 31. The moving magnetic suction member 2412 has opposite magnetic properties to the magnetic ring 312 at the end of the male connector 31. The magnetic shielding plate 2121 and the inner liner shell 213 are used to shield the moving magnetic repulsion member 2413 and the moving magnetic suction member 2412, respectively. Figure 12 As shown, when the moving magnetic repulsion component 2413 is entirely located inside the magnetic shielding plate 2121, the moving magnetic attraction component 2412 is entirely exposed outside the inner liner shell 213. At this time, the magnetic attraction area between the magnetic ring 312 of the male head 31 and the moving magnetic attraction component 2412 is maximized. When the moving magnetic attraction component 2412 moves a certain distance inside the inner liner shell 213, the corresponding moving magnetic repulsion component 2413 moves a corresponding distance outward from the magnetic shielding plate 2121. At this time, the magnetic attraction force on the male head 31 is reduced. During the process of the adjusting rod 221 controlling the elastic anti-detachment buckle 231 to disengage from the annular slot 311 through the linear lifting action, the emergency demagnetizing gear set 243 can also synchronously control the moving magnetic attraction component 2412 to be completely hidden inside the inner liner shell 213. At this time, the magnetic attraction force of the static magnetic attraction component 2122 on the magnetic ring 312 of the male head 31 cancels out the magnetic repulsion force of the moving magnetic repulsion component 2413, thereby achieving the effect of rapid demagnetization.

[0052] In this embodiment, the number of magnetic suction parts 241 and static magnetic suction components 2122 is not limited. The static magnetic suction components 2122, moving magnetic suction components 2412, and moving magnetic repulsion components 2413 are in the same plane. The moving carrier 2411 is directly slidably connected to the arc-shaped guide rail through a structure such as a fixing pin. The moving magnetic repulsion components 2413 are distributed near the magnetic shielding plate 2121. This application can not only achieve the function of individually adjusting the magnetic suction force and individually switching the magnetic poles, but also achieve the purpose of mechanical unlocking simultaneously during the rapid switching of magnetic poles. In cases where the ambulance overturns and medical personnel are unable to use their waist to pull the male head 31 out of the female seat 21, or the buckle of the waist support is blocked by an obstacle and cannot be unfastened, or the protruding structure 2233 cannot automatically move out of the straight groove 23111, it can improve the safe escape ability of medical personnel of different weight levels.

[0053] like Figure 12 As shown, the bottom shell 211 has an arc-shaped hole 2111 on its side, and the cam 242 has an indicator 244 on its side for indicating the demagnetizing force level. The indicator 244 is slidably connected within the arc-shaped hole 2111. Appropriate demagnetizing force level graduations can be set on the edge of the arc-shaped hole 2111 according to the magnitude of the demagnetizing force. Both the demagnetizing force level graduations and the indicator 244 are made of fluorescent material, making it easy for medical personnel to see and operate in dark environments.

[0054] The working process of the ambulance medical personnel relatively fixed operation platform provided by the present invention is as follows:

[0055] The magnetic attraction force between the magnetic attraction mechanism 24 and the male connector 31 is adjusted by rotating the adjustment mechanism 22. This allows for adaptive adjustment of the demagnetizing force based on the weight of the medical personnel. For heavier medical personnel, the preset demagnetizing force is increased to avoid the risk of accidental disengagement due to greater inertia during sudden braking or other situations. For lighter medical personnel, the preset demagnetizing force is decreased to avoid the risk of slow disengagement in extreme situations such as rollovers or falls into water, where the lower back is not strong enough or the body position limits strength. In situations where personnel may be in unfavorable positions such as upside down, tilted to the side, or squeezed by obstacles due to rollovers, falling into water, etc., and their waist cannot exert force normally, or the buckle of the waist restraint belt is blocked and cannot be directly unbuckled, the adjustment mechanism 22 can be lifted by the pull ring 225 to instantly adjust the magnetic attraction between the magnetic attraction mechanism 24 and the male head 31 to the minimum or release the magnetic attraction on the male head 31. At the same time, the mechanical locking mechanism 23 can be controlled to release the mechanical lock on the male head 31, thereby realizing automatic demagnetization and quick release in emergency situations.

[0056] In the above scheme, by setting the adjustment mechanism 22, the lifting action of the adjustment mechanism 22 can control the moving magnetic suction component 2412 to completely move into the inner liner shell 213 and the moving magnetic repulsion component 2413 to completely expose the magnetic shielding plate 2121. At the same time, the magnetic attraction force is canceled to the minimum or released, and the protruding structure 2233 of the inner core 2232 slides to the wedge groove 23112 of the elastic anti-detachment buckle 231, forcing the elastic anti-detachment buckle 231 to disengage from the annular groove 311 of the male head 31. In the event of accidents such as rollover, side rollover, or falling into water, even if the medical staff cannot exert force normally in their waist, or the buckle of the waist restraint belt is blocked and cannot be directly unbuckled, quick detachment can be achieved. It has the characteristics of easy operation and high escape efficiency.

[0057] By setting the adjustment mechanism 22, the rotation of the adjustment mechanism 22 can adjust the magnetic attraction between the magnetic attraction mechanism 24 and the male head 31, and then adaptively adjust the demagnetizing force according to its own weight, so as to prevent the risk of accidental disengagement of medical staff with larger weight when the vehicle is moving violently, and to prevent the risk of medical staff with smaller weight or less strength being unable to quickly disengage in extreme situations such as rollover or falling into water, thus improving the reliability of daily use.

[0058] By setting the adjustment mechanism 22, the inner core of the adjustment mechanism 22 slides inertially when the vehicle moves violently. The protruding structure 2233 and the straight groove 23111 automatically limit the elastic anti-disengagement buckle 231, which enhances the reliability of the mechanical limit and further prevents accidental disengagement when the vehicle moves violently. It has the characteristics of high reliability and high safety.

[0059] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A magnetic quick-release restraint locking device for field environments, characterized in that, The device includes a magnetic quick-release mechanism and a male connector. The magnetic quick-release mechanism includes a female base, and a mechanical locking mechanism is installed inside the female base. The mechanical locking mechanism includes an elastic anti-detachment buckle disposed inside the female base. The male connector is provided with an annular groove and a magnetic ring. The elastic anti-detachment buckle engages with or disengages from the annular groove. The magnetic attraction mechanism includes a second cam, which is fixedly installed in the female seat. The second cam is provided with an arc-shaped guide rail. A moving magnetic attracting component and a moving magnetic repulsion component are slidably installed in the arc-shaped guide rail. A limiting structure is fixedly installed in the female seat. The moving magnetic attracting component and the moving magnetic repulsion component are slidably arranged in the limiting groove of the limiting structure. The adjustment mechanism includes an adjustment rod inserted into the female seat. The adjustment rod is driven by the second cam. The rotation of the second cam causes the moving magnetic attracting component and the moving magnetic repulsing component to move along the limiting groove toward the magnetic ring of the male head. The adjustment rod is provided with an emergency release pin. When the adjustment rod moves upward, the emergency release pin causes the elastic anti-detachment buckle to disengage from the annular groove.

2. The magnetic quick-release restraint locking device for field environments according to claim 1, characterized in that, The female base includes a bottom shell, a limiting structure, an inner liner shell, and a top cover. The limiting structure and the inner liner shell are both fixedly connected to the bottom shell. The top cover is fixedly connected to the inner liner shell. The inner liner shell abuts against the limiting structure. The surface of the limiting structure is provided with a magnetic shielding plate, a static magnetic suction component, and a radial guide rail. The inner liner shell is provided with a limiting groove.

3. The magnetic quick-release restraint locking device for field environments according to claim 2, characterized in that, The male head has an annular groove on its side. The mechanical locking mechanism includes an elastic anti-detachment buckle inserted into the inner liner shell. The elastic anti-detachment buckle is connected to the annular groove. The surface of the elastic anti-detachment buckle is provided with an irregular groove, which is composed of a straight groove and a wedge-shaped groove.

4. The magnetic quick-release restraint locking device for field environments according to claim 3, characterized in that, The adjustment mechanism includes an adjustment rod inserted into a female seat and a fourth spur gear rotatably connected to the female seat. A pin for insertion into a slot at the end of the adjustment rod is fixedly connected to the surface of the fourth spur gear. An emergency release pin and a spring core are sleeved on the surface of the adjustment rod. The emergency release pin includes an outer shell and an inner core sleeved on the surface of the adjustment rod. The outer shell is inserted into the limiting slot, and the inner core is slidably connected within the outer shell. A protruding structure is provided on the surface of the inner core at a position corresponding to the spur slot. A retaining ring is fixedly provided on the surface of the adjustment rod. The spring core is used to press one end of the adjustment rod against the bottom shell. A knob structure is connected to the other end of the adjustment rod, and a pull ring is connected to the surface of the knob structure.

5. The magnetic quick-release restraint locking device for field environments according to claim 4, characterized in that, The magnetic attraction mechanism includes a magnetic attraction part, a second cam, and an emergency demagnetizing gear set. The magnetic attraction part is connected to the second cam, which is connected to the bottom shell. The emergency demagnetizing gear set is installed on the back of the limiting structure. The magnetic attraction part is slidably connected in the first radial guide rail. The second cam is provided with a first tooth groove and a second tooth groove. One side of the emergency demagnetizing gear set is drivenly connected to the second tooth groove, and the fourth spur gear is drivenly connected to the first tooth groove. A plurality of static magnetic attraction components and a plurality of magnetic attraction parts are symmetrically distributed about the second cam axis.

6. The magnetic quick-release restraint locking device for field environments according to claim 5, characterized in that, The adjusting rod has several annular grooves, and after being disengaged from the insertion pin, the adjusting rod is connected to the other side of the emergency demagnetizing gear set through the annular grooves.

7. The magnetic quick-release restraint locking device for field environments according to claim 5, characterized in that, The magnetic attraction part includes a movable carrier that is slidably connected to the cam. A moving magnetic attractor and a moving magnetic repulsion member with opposite magnetic properties are fixedly connected to the movable carrier. A magnetic ring is provided at the male end. The moving magnetic attractor has the opposite magnetic properties to the magnetic ring. The magnetic shielding plate and the inner liner shell are used to shield the moving magnetic repulsion member and the moving magnetic attractor, respectively.

8. The magnetic quick-release restraint locking device for field environments according to claim 3, characterized in that, The mechanical locking mechanism further includes a cam 1 that is slidably disposed within the inner liner shell, a plurality of elastic anti-detachment buckles that are connected to the cam 1, and a radial guide rail 2 that is disposed on the inner wall of the inner liner shell, with the elastic anti-detachment buckles inserted into the radial guide rail 2.

9. The magnetic quick-release restraint locking device for field environments according to claim 5, characterized in that, The bottom shell has an arc-shaped hole on its side, and the two sides of the cam have indicators for indicating the demagnetizing force level. The indicators are slidably connected in the arc-shaped hole.

10. A medical treatment platform for field environments, comprising the magnetic quick-release restraint locking device as described in any one of claims 1-9, characterized in that, The rescue platform includes a waist restraint belt assembly and a multi-joint support arm. The waist restraint belt assembly is connected to the male head, and the multi-joint support arm is connected to the female head.

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