Portable child heart first-aid defibrillator

Abstract

The invention belongs to the technical field of cardiac defibrillators, and discloses a portable child cardiac first-aid defibrillator. Comprising a shell, a flip cover is installed on the top of the shell, a plug and a pair of electrode plates are placed in an inner cavity of the shell, the device further comprises a protection mechanism, and the protection mechanism is connected to the inner cavity of the shell. When the cover is opened, the push-pull rod pulls and rotates the limiting sleeve by a certain angle, so that the opening of the limiting sleeve is inclined upwards, the extrusion rod always keeps contact with the groove wall, applies radial pressure and shrinks towards the inner cavity of the limiting sleeve, and finally, the pair of arc-edge blocks rotates towards one side far away from the electrode plate, so that the limitation of the arc-edge blocks on the electrode plate is relieved; limiting removal and oblique positioning of the electrode plates enable rescue personnel to quickly take down a pair of electrode plates after the cover is opened to perform cardiac defibrillation operation, and the first-aid efficiency is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of cardiac defibrillators, and specifically relates to a portable pediatric cardiac first-aid defibrillator. Background Art

[0002] Although traditional portable cardiac first-aid defibrillators have the characteristics of miniaturization and portability, in order to suit the physiological characteristics of children and improve the safety and effectiveness of first aid, it is necessary to specifically design a portable pediatric cardiac first-aid defibrillator, which has a lower energy output range and weight, and smaller electrode patch sizes.

[0003] A prior art document, a portable cardiac defibrillator for cardiac surgery with application number CN202411415897.4, includes a defibrillator body. A wiring terminal is provided on one side of the defibrillator body. A first accommodation groove is formed on the surface of the defibrillator body. A first box door is rotatably connected to the first accommodation groove. A first built-in handle is formed on the surface of the first accommodation groove. A control panel is fixedly installed inside the first accommodation groove. A display is installed inside the first accommodation groove. A second accommodation groove is formed on the other side of the defibrillator body. A storage rack is installed inside the second accommodation groove, realizing that the docking component opens the second box door, so as to facilitate the removal and use of the electrode patches. Then, when carrying, turning the rotary handle facilitates the grip to be moved out of the third accommodation groove, so as to facilitate the overall carrying of the defibrillator body; Although the above invention optimizes the defibrillator handle and uses the method of quickly opening the box door to facilitate the removal and use of the electrode patches, usually, the electrode patches are simply placed in the inner cavity of the box. When the defibrillator is portable, the electrode patches are very likely to collide with the inner cavity of the box during the movement of the defibrillator, so that scratches may appear on the surface of the electrode patches, reducing the conductivity. Therefore, it is necessary to improve the protection mechanism of the electrode patches. Summary of the Invention

[0004] To solve the problem that the electrode patches are very likely to collide with the inner cavity of the box during the movement of the defibrillator as proposed in the above background art, the present invention provides a portable pediatric cardiac first-aid defibrillator.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A portable pediatric cardiac first-aid defibrillator includes a housing. A flip cover is installed on the top of the housing. A plug and electrode patches are respectively placed in the inner cavity of the housing. There are a pair of electrode patches. The defibrillator further includes a protection mechanism and a self-powered mechanism. The protection mechanism is connected to the inner cavity of the housing. The self-powered mechanism is jointly connected to the housing and the protection mechanism. The protection mechanism includes a limiting member and an unlocking member;

[0007] The unlocking member includes a pair of extrusion rods, and a pair of arc-shaped guiding grooves are formed in the inner cavity of the housing. The ends of the pair of extrusion rods are both abutted and slidably connected in the arc-shaped guiding grooves.

[0008] Optionally, the limiting member includes a limiting sleeve rotatably connected to the inner cavity of the housing. A pair of push-pull rods are rotatably connected to one side of the limiting sleeve facing the flip cover, and the other sides of the pair of push-pull rods are rotatably connected to the flip cover.

[0009] Optionally, a pair of opening grooves are formed on the side of the limiting sleeve away from the push-pull rods, and the limiting sleeve is movably sleeved on the outer wall of the electrode sheet.

[0010] Optionally, arc-shaped blocks are slidably connected in the pair of opening grooves, and the pair of arc-shaped blocks are rotatably connected to the limiting sleeve through a rotating shaft.

[0011] Optionally, extrusion grooves are arranged on both sides inside the limiting sleeve. The ends of the pair of extrusion rods penetrate through the limiting sleeve and are respectively slidably connected in the extrusion grooves. A return spring is elastically connected between the end of the extrusion rod extending into the extrusion groove and the inner wall of the extrusion groove.

[0012] Optionally, a groove plate is fixedly connected to the lower end of the rotating shaft. A long waist-shaped hole groove is formed in the inner cavity of the groove plate. The groove plate is movably connected with a sliding groove block through a sliding column. Both ends of the sliding column are fixedly connected to the inner cavity of the sliding groove block. The outer wall of the sliding column is slidably sleeved in the long waist-shaped hole groove, and the outer wall of the sliding groove block is fixedly connected to the extrusion rod.

[0013] Optionally, the self-powered mechanism includes a connecting rod. A connecting rod is rotatably connected to the side of the limiting sleeve away from the opening groove. The connecting rod is movably connected with a rotating plate through a ball shaft. The middle of the rotating plate is rotatably connected with a support plate, and the bottom of the support plate is fixedly connected to the inner cavity of the housing.

[0014] Optionally, a positioning sleeve is rotatably connected to the side of the rotating plate away from the ball shaft, and the positioning sleeve is slidably sleeved on the middle part of the plug.

[0015] Optionally, the height of the support plate is set as H1, the thickness of the plug is set as H2, and H1 > H2.

[0016] Optionally, a handle is fixedly connected to the side wall of the housing, and the rotation angle range of the flip cover in the open state is 90 degrees to 180 degrees.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] Through the cooperation of structures such as a limiting sleeve and arc-edge blocks, the protection mechanism of the electrode patch is improved. The edges of the electrode patch are limited by a pair of arc-edge blocks to ensure that the electrode patch is exactly placed in the inner cavity of the limiting sleeve. When the housing is closed, the limiting sleeve lies flat in the inner cavity of the housing. The limiting sleeve is kept relatively fixed by the abutment of the push-pull rod and the flip cover, avoiding the collision of the electrode patch with the inner cavity when the defibrillator moves, solving the problem that scratches may appear on the surface of the electrode patch and reducing the conductivity.

[0019] Through the cooperation of structures such as an extrusion rod and a push-pull rod, the quick access of the electrode patch is facilitated. When the cover is opened, the push-pull rod pulls the limiting sleeve and rotates it by a certain angle, making the opening of the limiting sleeve tilt upward. In addition, the extrusion rod always keeps in contact with the groove wall and applies a radial pressure, contracting towards the inner cavity of the limiting sleeve. Finally, a pair of arc-edge blocks rotate towards the side away from the electrode patch, releasing the limitation of the arc-edge blocks on the electrode patch. The release of the limitation and the oblique positioning of the electrode patch enable the rescuer to quickly remove a pair of electrode patches for cardiac defibrillation operation after the cover is opened, effectively improving the first aid efficiency.

[0020] Through the cooperation of structures such as a connecting rod and a rotating plate, the rescue time is saved. During the rotation of the limiting sleeve, by pulling one side of the rotating plate upward, under the action of the lever principle, the other side of the rotating plate presses down, making the plug and the interface be inserted into each other, and the power supply of the electrode patch is connected. The cover opening automatically plugs in the power without the rescuer performing the plugging operation, simplifying the operation process. And when the flip cover is closed, the plug and the interface remain separated, which can extend the service life of the electrode patch and reduce the safety risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the cover opening structure of the present invention;

[0022] Figure 2 is the present invention Figure 1 a partial enlarged structural schematic diagram at A in;

[0023] Figure 3 is a schematic diagram of the cover closing structure of the present invention;

[0024] Figure 4 is a schematic diagram of the side-sectional three-dimensional structure of the present invention;

[0025] Figure 5 is a schematic diagram of the structural cooperation relationship between the limiting sleeve and the extrusion rod of the present invention;

[0026] Figure 6 is a schematic diagram of the structural cooperation relationship between the limiting sleeve and the arc-edge blocks of the present invention;

[0027] Figure 7 is a schematic diagram of the structural cooperation relationship between the extrusion rod and the rotating shaft of the present invention;

[0028] Figure 8 Schematic diagram of the structural cooperation relationship between the slot plate and the sliding groove block of the present invention;

[0029] Figure 9 Schematic diagram of the positional relationship of the limit sleeve in the open cover state of the present invention;

[0030] Figure 10 Schematic diagram of the positional relationship of the limit sleeve in the closed cover state of the present invention;

[0031] Figure 11 For the present invention Figure 10 Partial enlarged structural diagram at position B in the present invention;

[0032] Figure 12 Schematic diagram of the positional relationship of the plug in the closed cover state of the present invention.

[0033] In the figure:

[0034] 1. Housing; 2. Handle; 3. Flip cover; 4. Plug; 5. Electrode plate; 6. Protection mechanism; 61. Limiting member; 611. Limit sleeve; 612. Push-pull rod; 613. Open slot; 62. Unlocking member; 621. Extrusion rod; 622. Arc-edge block; 623. Rotating shaft; 624. Sliding groove block; 625. Return spring; 626. Slide column; 627. Slot plate; 628. Extrusion groove; 629. Long waist hole groove; 7. Self-powered mechanism; 71. Link; 72. Rotating plate; 73. Ball shaft; 74. Support plate; 75. Positioning sleeve. Detailed implementation manner

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] As Figures 1 to 12 shown, the present invention provides a portable children's cardiac first aid defibrillator, including a housing 1, a flip cover 3 is installed on the top of the housing 1, a plug 4 and an electrode plate 5 are respectively placed in the inner cavity of the housing 1, and a pair of electrode plates 5 are provided. It also includes:

[0037] A protection mechanism 6, which is connected to the inner cavity of the housing 1;

[0038] A self-powered mechanism 7, which is jointly connected to the housing 1 and the protection mechanism 6;

[0039] Among them, the protection mechanism 6 includes a limiting member 61 and an unlocking member 62; the unlocking member 62 includes a pair of extrusion rods 621, and a pair of arc-shaped guiding grooves are opened in the inner cavity of the housing 1. (AsFigure 5 The ends of a pair of extrusion rods 621 (as shown) are both in abutting sliding contact within the arc-shaped guide groove. A handle 2 is fixedly connected to the side wall of the housing 1, and the rotation angle range of the flip cover 3 in the open state is from 90 degrees to 180 degrees.

[0040] Adopting the above solution: One side of the flip cover 3 is rotatably connected to the edge of the housing 1, and the other side of the flip cover 3 is snap-connected to the housing 1 through a lock. The arrow on the outer wall of the flip cover 3 indicates the opening direction (as Figure 3 shown). A heart rate display screen is fixedly connected to the side of the housing 1 near the handle 2. The plug 4 and the electrode plate 5 are electrically connected to each other. A number of function keys are installed on the side of the inner cavity of the housing 1 away from the handle 2 for functions such as turning on and off the defibrillator, setting data, and voice broadcast. An interface is provided on the side of the inner cavity of the housing 1 away from the limit sleeve 611 for the plug 4 to connect to the power supply. Operation guide stickers are pasted on the surfaces of both the housing 1 and the flip cover 3. All of the above are prior arts and will not be elaborated here. When the limit sleeve 611 rotates within the inner cavity of the housing 1, as Figure 5 shown, the arc-shaped guide groove inside the housing 1 will drive the end wall of the extrusion rod 621 to make constrained sliding. Since the sliding end of the extrusion rod 621 always maintains close contact with the wall of the arc-shaped guide groove and continuously applies a radial pressure during the movement, this interaction force will generate an axial component force on the extrusion rod 621. In terms of mechanical principles, this component force can be decomposed into two components: a radial component to ensure the stable contact between the extrusion rod 621 and the groove wall, and an axial component to push the extrusion rod 621 to move along its axis. With the continuous rotation of the limit sleeve 611, the extrusion rod 621 gradually contracts towards the inner cavity of the limit sleeve 611 under the constraint of the guide groove, completing the expected displacement action. The continuous contact pressure between the extrusion rod 621 and the groove wall enables it to automatically compensate for mechanical wear or assembly errors and maintain long-term stable working performance.

[0041] As Figure 4 and Figure 5 shown, the limiting member 61 includes a limit sleeve 611 rotatably connected to the inner cavity of the housing 1. A pair of push-pull rods 612 are rotatably connected to the side of the limit sleeve 611 facing the flip cover, and the far ends of the pair of push-pull rods 612 away from the limit sleeve 611 are rotatably connected to the flip cover 3. A pair of open slots 613 are provided on the side of the limit sleeve 611 away from the push-pull rods 612, and the limit sleeve 611 is movably sleeved on the outer wall of the electrode plate 5.

[0042] Adopting the above solution: The size of the limit sleeve 611 can be adapted according to the actual inner cavity size of the housing 1 and the size of the electrode plate 5. As long as the flip cover 3 is in the closed state, the limit sleeve 611 lies flat in the inner cavity of the housing 1 under the pushing of the push-pull rod 612. At this time, when the defibrillator is moved arbitrarily through the handle 2, the limit sleeve 611 will not displace. Cooperating with a pair of arc-edge blocks 622 to abut against the edge of the electrode plate 5, the electrode plate 5 located in the inner cavity of the limit sleeve 611 is double-protected by the housing 1 and the limit sleeve 611 and will not be accidentally collided during the movement of the defibrillator. When the flip cover 3 is opened, the push-pull rod 612 pulls the limit sleeve 611 to rotate into an inclined state, and the electrode plate 5 is also in an inclined state. Through the groove provided at the opening position of the limit sleeve 611, the edge of the electrode plate 5 can be exposed, facilitating the rescuer to take out the electrode plate 5 from the limit sleeve 611. The opening grooves 613 symmetrically opened on both sides of the limit sleeve 611 with a closed structure, the groove profile of which forms a precise fit with the rotation trajectory of the arc-edge blocks 622. The groove body adopts a double-opening design, and the groove width extends to the edge of the limit sleeve 611 and communicates with its inner cavity, ensuring the radial movement margin obtained by the arc-edge blocks 622 at the initial position. And this groove opening design supports the replacement of arc-edge blocks 622 of different specifications to adapt to electrode plates 5 of different lengths and sizes. It can cooperate with the surface hardening treatment process to improve the wear resistance of the key contact surfaces and extend the overhaul period of the device.

[0043] As Figure 6 and Figure 7 shown, an arc-edge block 622 is slidably connected in each of the pair of opening grooves 613. The inner sides of the pair of arc-edge blocks 622 are connected with a rotating shaft 623, and the end of the rotating shaft 623 is rotatably installed on the limit sleeve 611. Squeezing grooves 628 are provided on both inner sides of the limit sleeve 611. A pair of squeezing rods 621 penetrate through the ends of the limit sleeve 611 and are respectively slidably installed in the squeezing grooves 628. A return spring 625 is connected between the end of the squeezing rod 621 extending into the squeezing groove 628 and the inner wall of the squeezing groove 628. The two ends of the return spring 625 are respectively connected to the inner wall of the squeezing groove 628 and the squeezing rod 621.

[0044] As Figure 7 and Figure 8 shown, a groove plate 627 is fixedly connected to the lower end of the rotating shaft 623. A long oval hole groove 629 is opened in the inner cavity of the groove plate 627. The groove plate 627 is movably connected with a chute block 624 through a sliding column 626. The two ends of the sliding column 626 are fixedly connected to the inner cavity of the chute block 624. The outer wall of the sliding column 626 is slidably sleeved in the long oval hole groove 629. The outer wall of the chute block 624 is fixedly connected to the squeezing rod 621.

[0045] Adopting the above solution: When the extrusion rod 621 drives the chute block 624 to move smoothly along the axis, the sliding column 626 embedded at its front end exerts a continuous extrusion force on the groove plate 627, prompting the sliding column 626 to form a rolling friction within the inner cavity of the groove plate 627. This pressure conduction mechanism drives the bilateral arc-edge blocks 622 to rotate synchronously around the rotating shaft 623. The contact angle between the arc-shaped working surface of the arc-edge block 622 close to the electrode plate 5 and the electrode plate 5 gradually decreases, ultimately achieving a zero-interference limit release state. During this process, the extrusion rod 621 is always located below the rotating shaft 623 and does not hinder the rotation of the rotating shaft 623. The arc-edge block 622 rotates through the upper end of the rotating shaft 623 within the inner cavity of the limit sleeve 611, facilitating the chute block 624 to exert pressure on the groove plate 627. The offset layout (8 mm from the center line of the rotating shaft) of the sliding column 626 on the side close to the electrode plate 5 compresses the operating space by 30% while maintaining mechanical balance, which is particularly suitable for the design of compact devices. The rotation trajectory of the arc-edge block 622 has been topologically optimized, and its centroid projection always falls within the support surface of the limit sleeve 611, effectively suppressing high-frequency vibrations (measured vibration attenuation rate > 75%).

[0046] As Figure 10 and 11 shown, the power-on mechanism 7 includes a connecting rod 71. One end of the connecting rod 71 is rotatably connected to the side of the limit sleeve 611 away from the opening groove 613. The connecting rod 71 is movably connected to a rotating plate 72 through a ball shaft 73. The middle of the rotating plate 72 is rotatably connected to a support plate 74 through a connecting plate rotating shaft 721, and the bottom of the support plate 74 is fixedly connected to the inner cavity of the housing 1.

[0047] As Figure 2 and Figure 12 shown, a positioning sleeve 75 is rotatably connected to the side of the rotating plate 72 away from the ball shaft 73. The positioning sleeve 75 is slidably sleeved on the middle part of the plug 4; the height of the support plate 74 is set as H1, the thickness of the plug 4 is set as H2, and H1 > H2.

[0048] Adopting the above solution: The connecting rod 71 is provided with a sliding groove 711 corresponding to the position of the ball shaft 73. The ball shaft 73 is composed of a spherical ball 731 and a sliding rod 732. One end of the sliding rod 732 is connected to the spherical ball 731 and the other end is connected to the rotating plate 72. When the connecting rod 71 pulls the rotating plate 72 through the ball shaft 73, since the sliding rod 732 can slide within the sliding groove 711, the rotational displacement lateral pulling force of the connecting rod 71 cannot be exerted on the rotating plate 72, and the remaining part of the radial pulling force can pull one side of the rotating plate 72 upward, causing the rotating plate 72 to generate a vertical displacement, thereby performing the plugging and unplugging operation of the plug 4. When the rotating plate 72 maintains a horizontal state, as Figure 11 , H1 > H2 indicates that the support plate 74 is higher than the plug 4, and the specific height range is the insertion thickness of the plug 4, which can be adapted according to the actual thickness of the plug 4, ensuring that the plug 4 is located above the interface and in a power-off state for ready use at any time.

[0049] Working principle and usage process of the present invention:

[0050] First, when not in use, the flip cover 3 is snap-fitted on the top of the housing 1. A pair of electrode plates 5 are stacked on the inner wall of the limit sleeve 611, and the edges of the electrode plates 5 are limited by a pair of arc-shaped blocks 622, ensuring that the electrode plates 5 are exactly placed in the inner cavity of the limit sleeve 611. When the housing 1 is closed, the limit sleeve 611 lies flat in the inner cavity of the housing 1. The limit sleeve 611 is kept relatively fixed by the abutment of the push-pull rod 612 and the flip cover 3, and will not move up and down, thereby improving the protection of the electrode plates 5 and avoiding collisions and damage to the electrode plates 5;

[0051] Second, when a child has a cardiac arrest and needs first aid, the rescuer holds the handle 2 and places the defibrillator beside the child patient. By opening the flip cover 3, the push-pull rod 612 moves synchronously with the flip cover 3. The push-pull rod 612 simultaneously pulls the limit sleeve 611 and rotates it by a certain angle, making the opening of the limit sleeve 611 tilt upwards. When the limit sleeve 611 rotates around the fixed axis, the end of the extrusion rod 621 slides along the arc-shaped guide groove under restraint. Since the extrusion rod 621 always contacts the groove wall and applies a radial pressure, the extrusion rod 621 generates an axial displacement, causing the extrusion rod 621 to contract towards the inner cavity of the limit sleeve 611, thereby compressing the internal return spring 625. At this time, the chute block 624 fixed to the extrusion rod 621 also moves axially, applying an axial extrusion force to the groove plate 627 through the sliding column 626, prompting the sliding column 626 to slide in the inner cavity of the groove plate 627 and driving the groove plate 627 to rotate around the rotating shaft 623, so that the arc-shaped block 622 also rotates around the rotating shaft 623. Finally, the pair of arc-shaped blocks 622 rotate towards the side away from the electrode plates 5, releasing the limit of the arc-shaped blocks 622 on the electrode plates 5, and cooperating with the position where the limit sleeve 611 and the electrode plates 5 are tilted upwards, so that the rescuer can quickly remove the pair of electrode plates 5 for cardiac defibrillation operation;

[0052] Third, during the rotation of the limit sleeve 611, the connecting rod 71 on the side wall can also be pulled. The connecting rod 71 undergoes displacement under the rotating radial tension. Part of the radial tension drives the ball shaft 73 to slide in the groove of the connecting rod 71, and the remaining radial tension can pull one side of the rotating plate 72 upwards. With the support of the support plate 74, under the action of the lever principle, the other side of the rotating plate 72 presses down, synchronously pressing down the positioning sleeve 75 and the plug 4 sleeved inside, so that the plug 4 is inserted into the interface, turning on the power supply of the electrode plates 5. Plugging in is automatic when the cover is opened, without the need for the rescuer to perform the plugging operation, saving rescue time. And after the rescue is completed, when the flip cover 3 is closed, reverse operation is performed according to the above principle, causing the plug 4 to automatically pull out from the interface and be located above the interface, always remaining in a state of waiting to be plugged in for the next use;

[0053] Finally, whenever the flip cover 3 is opened, the electrode patch 5 can be rotated to an inclined position, and the power supply of the electrode patch 5 is automatically turned on. The rescuer uses the electrode patch 5 to stick it on the correct position of the child, and performs defibrillation first aid by pressing the function keys on the housing 1. After the operation is completed, a new electrode patch 5 needs to be replaced to ensure that the defibrillator is in a standby state at any time. After closing the flip cover 3, the limit sleeve 611 is rotated and reset under the push of the push rod 612, and the extrusion rod 621 is reset by the elastic force of the return spring 625, so that the arc-shaped block 622 rotates in the reverse direction and resets, limiting the new electrode patch 5 to ensure the fit of the electrode patch 5 in the inner cavity of the housing 1, effectively preventing the movement and collision of the electrode patch 5. The plug 4 also returns to the state of waiting to be plugged, so that the device can perform the next first aid operation at any time.

[0054] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable pediatric cardiac first aid defibrillator, comprising a housing, a flip cover is installed on the top of the housing, a plug and electrode pads are respectively placed in the inner cavity of the housing, and there is a pair of electrode pads, and it is characterized in that: It further includes a protection mechanism and a self-power-on mechanism. The protection mechanism is connected to the inner cavity of the housing, and the self-power-on mechanism is jointly connected to the housing and the protection mechanism. The protection mechanism includes a limiting member and an unlocking member; The unlocking member includes a pair of extrusion rods. A pair of arc-shaped guiding grooves are formed in the inner cavity of the housing, and the ends of the pair of extrusion rods are abutted and slid in the arc-shaped guiding grooves.

2. The portable child cardiac first aid defibrillator according to claim 1, characterized in that: The limiting member includes a limiting sleeve rotatably connected to the inner cavity of the housing. A pair of push-pull rods are rotatably connected to one side of the limiting sleeve facing the flip cover, and the other sides of the pair of push-pull rods away from the limiting sleeve are rotatably connected to the flip cover.

3. The portable pediatric cardiac emergency defibrillator according to claim 2, wherein: A pair of opening grooves are formed in the side of the limiting sleeve away from the push-pull rods, and the limiting sleeve is movably sleeved on the outer wall of the electrode sheet.

4. The portable pediatric cardiac emergency defibrillator according to claim 3, characterized in that: A pair of arc-edge blocks are slidably connected in the pair of opening grooves, and the pair of arc-edge blocks are rotatably connected to the limiting sleeve through a rotating shaft.

5. The portable child cardiac first aid defibrillator according to claim 2, wherein: Both sides inside the limiting sleeve are provided with extrusion grooves. The ends of the pair of extrusion rods penetrate through the limiting sleeve and are respectively slidably connected in the extrusion grooves. A return spring is elastically connected between the end of the extrusion rod extending into the extrusion groove and the inner wall of the extrusion groove.

6. The portable child cardiac first aid defibrillator according to claim 4, wherein: The lower end of the rotating shaft is fixedly connected with a groove plate. A long waist hole groove is formed in the inner cavity of the groove plate. The groove plate is movably connected with a sliding groove block through a sliding column. Both ends of the sliding column are fixedly connected to the inner cavity of the sliding groove block. The outer wall of the sliding column is slidably sleeved in the long waist hole groove, and the outer wall of the sliding groove block is fixedly connected to the extrusion rod.

7. The portable child cardiac emergency defibrillator according to claim 2, characterized in that: The self-power-on mechanism includes a connecting rod. The connecting rod is rotatably connected to the side of the limiting sleeve away from the opening groove. The connecting rod is movably connected with a rotating plate through a ball joint. The middle part of the rotating plate is rotatably connected with a support plate, and the bottom of the support plate is fixedly connected to the inner cavity of the housing.

8. The portable pediatric cardiac emergency defibrillator according to claim 7, characterized in that: The rotating plate is rotatably connected with a positioning sleeve on the side away from the ball joint, and the positioning sleeve is slidably sleeved on the middle part of the plug.

9. The portable pediatric cardiac emergency defibrillator according to claim 7, wherein: The height of the support plate is set as H1, the thickness of the plug is set as H2, and H1 > H2.

10. The portable child cardiac first aid defibrillator according to claim 1, characterized in that: A handle is fixedly connected to the side wall of the housing, and the rotation angle range value of the flip cover in the open state is 90 degrees to 180 degrees.

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