A portable first-aid pen

Abstract

The application discloses a portable first-aid pen and relates to the technical field of medical auxiliary devices.The portable first-aid pen comprises a pen head, a pen barrel, a rotating pen barrel, a fixed pen barrel, a cavity, a pincer blade, a connecting mechanism, a first supporting rod, a connecting piece, a second supporting rod and a ball head rod.The pincer blade can be extended from the cavity at the top end of the pen barrel, and the lower end of the pincer blade is rotationally connected with the connecting mechanism.The connecting mechanism comprises the first supporting rod, the other end of which is rotationally connected with the connecting piece, the other end of the connecting piece is rotationally connected with the second supporting rod, and the other end of the second supporting rod is rotationally connected with the ball head rod.The ejecting mechanism can lift the first supporting rod, so that the pincer blade is opened to both sides.The functions of the pen, the mouth opener and the tongue depressor are combined together, the portable first-aid pen can be carried and is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, specifically a portable first aid pen. Background Technology

[0002] In common convulsive disorders such as epilepsy or febrile seizures in children, the tongue may fall back, which can cause oxygen deprivation or suffocation. First aid measures recommend placing a tongue depressor between the upper and lower teeth to prevent tongue biting. If the teeth are tightly closed after the convulsions stop, a mouth opener can be used to open the mouth and pull out the tongue.

[0003] However, tongue depressors and mouth openers in hospitals are often placed in ambulances or designated locations, making them inconvenient for patients to access in emergencies. Furthermore, mouth openers have sharp parts and are not easy to carry around. Summary of the Invention

[0004] This invention provides a portable first aid pen that combines the functions of a pen, mouth opener, and tongue depressor, and is easy to carry and use, thus solving the problems mentioned in the background art.

[0005] To achieve the combined functions of a pen, mouth opener, and tongue depressor, and to enable easy portability and use, this invention provides the following technical solution: A portable first aid pen, comprising a pen tip and a pen barrel, the pen barrel being located above the pen tip. The pen barrel includes a rotating pen barrel, which is threadedly connected to the pen tip. A fixed pen barrel is rotatably connected to the end of the rotating pen barrel furthest from the pen tip along its axial direction. The pen tip and the rotating pen barrel are rotatable around the axis of the fixed pen barrel. The pen barrel has symmetrically symmetrical cavities along its axis inside, each cavity containing clamp blades. The clamp blades extend from the top of the pen barrel through the cavity. A connecting mechanism is rotatably connected to the lower end of each clamp blade, allowing the clamp blades to extend from the cavity. After extending, it supports the clamp blade; the connecting mechanism includes a first support rod, one end of which is rotatably connected to the lower end of the clamp blade near the pen shaft axis, the other end of which is rotatably connected to a connector, the other end of which is rotatably connected to a second support rod, and the other end of which is rotatably connected to a ball-head rod; the lengths of the first and second support rods are both greater than the radius of the fixed pen shaft, and the length of the first support rod is greater than the length of the second support rod, so that the clamp blade can approach and fit against the axis of the rotating pen shaft after extending from the cavity; an ejection mechanism can lift the first support rod, thereby opening the clamp blade to both sides.

[0006] As a preferred embodiment of the present invention, the outer circumference of the pen barrel is provided with grooves corresponding to the positions of the two clamp blades, and the grooves are provided with openings that extend to adjacent cavities; the upper end of the fixed pen barrel is provided with guide grooves symmetrically arranged along the axis, the lower end of the guide grooves is connected to the cavities, and the guide grooves are used to change the movement direction of the connecting mechanism; a push rod is provided between the grooves and the cavities, the push rod includes a push head disposed in the groove, a diagonal rod is fixedly provided on the side of the push head near the cavity, a support part is fixedly provided on the end of the diagonal rod away from the push head, and the upper surface of the support part contacts the second support rod, and the push rod can move up and down along the opening.

[0007] In a preferred embodiment of the present invention, a cylindrical groove is formed on the surface of the cavity near the axis of the pen barrel, and the head of the ball joint can slide within the cylindrical groove without detaching. A rotating member is provided at the upper axis of the fixed pen barrel. The rotating member has an annular structure and is rotatably connected to the fixed pen barrel. An inclined cylindrical groove is symmetrically formed on the outer circumference of the rotating member along the axial direction, and the inclined cylindrical groove communicates with the cylindrical groove. An annular groove is formed on the outer circumference of the rotating member perpendicular to the axial direction, and the annular groove communicates with the inclined cylindrical groove. The head of the ball joint can slide within the annular groove and the inclined cylindrical groove without detaching.

[0008] As a preferred embodiment of the present invention, an arc-shaped groove is provided on the surface of the rotating member near the end of the fixed pen barrel, a return spring is provided in the arc-shaped groove, a stop block is fixed at the top of the fixed pen barrel, one end of the stop block extends into the arc-shaped groove, and one end of the return spring abuts against the stop block.

[0009] In a preferred embodiment of the present invention, the second support rod is a magnetic component, and a magnetic patch is fixed to the surface of the guide groove. The magnetic patch can attract and position the second support rod.

[0010] As a preferred embodiment of the present invention, a locking head is fixedly provided on the lower surface of the clamp blade, and a locking head groove for accommodating the locking head is provided on the upper surface of the first support rod. A locking block groove is provided on one side of the locking head groove, and a locking block is provided in the locking block groove. The locking block can limit the locking head. A spring is provided in the locking block groove, and the spring can extend and retract the locking block. A lever is fixedly provided perpendicular to the surface on one side of the locking block, and a lever groove communicating with the locking block groove is provided on the first support rod at the position corresponding to the lever. The lever can move in the lever groove.

[0011] As a preferred embodiment of the present invention, the ejection mechanism includes a threaded sleeve, which is fixed at the axis of the rotating pen barrel and located inside the fixed pen barrel. A threaded rod is threadedly connected to the threaded sleeve, the length of which is greater than the length of the threaded sleeve. The end of the threaded rod away from the rotating pen barrel passes through the fixed pen barrel and is flush with the upper surface of the rotating component. A limiting groove is symmetrically formed on the outer circumference of the threaded rod along the axis, and a limiting strip is fixed to the fixed pen barrel at the corresponding limiting groove. The limiting strip can slide within the limiting groove.

[0012] As a preferred embodiment of the present invention, the outer circular surface of the upper end of the fixed pen barrel is provided with a folding handle symmetrically along the axis, and the folding handle is hinged to the position of the corresponding opening end on the fixed pen barrel.

[0013] As a preferred embodiment of the present invention, the surface of the clamp blades is covered with a silicone soft sleeve, which can reduce the hardness of the clamp blades; a first magnet is fixed on the opposite side of the upper end of each of the two clamp blades, and a second magnet is fixed on the opposite side of the lower end of each of the two clamp blades. The first magnet and the second magnet are used to assist the clamp blades in contact, and the magnetic force of the first magnet is less than that of the second magnet.

[0014] As a preferred embodiment of the present invention, the upper end of the fixed pen barrel is provided with a protective cover, and the upper end of the fixed pen barrel can be inserted into the protective cover; a rubber ring is fixedly provided on the surface of the opening.

[0015] Compared with the prior art, the present invention provides a portable first aid pen, which has the following beneficial effects:

[0016] 1. This portable first aid pen is equipped with a connecting mechanism and clamp blades that can retract or extend into a cavity. When the connecting mechanism and clamp blades are extended into the cavity, they can be used as a tongue depressor or mouth opener. When the connecting mechanism and clamp blades are retracted into the cavity, they can be used as a pen. It combines the functions of a pen, mouth opener and tongue depressor, making it portable and easy to use.

[0017] 2. This portable first aid pen, with its protective cap and rubber ring fixed to the opening surface, can prevent dust and debris from entering the cavity.

[0018] 3. This portable first aid pen reduces the hardness of the forceps blades by placing a silicone soft sleeve on the surface of the blades, thereby preventing damage to teeth during first aid. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the extended blade structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the pliers opening structure of the present invention;

[0022] Figure 4 This is a cross-sectional view of the pen barrel of the present invention;

[0023] Figure 5 This is an enlarged view of area A of the present invention;

[0024] Figure 6 This is a schematic diagram of the push rod structure of the present invention;

[0025] Figure 7 This is an enlarged view of region B of the present invention;

[0026] Figure 8 This is a cross-sectional view of the connection mechanism of the present invention;

[0027] Figure 9 This is a cross-sectional view of the ejection mechanism of the present invention;

[0028] Figure 10 This is a front view of the rotating component of the present invention;

[0029] Figure 11 This is a top view of the rotating component of the present invention;

[0030] Figure 12 This is a magnetic attraction distribution diagram of the present invention.

[0031] In the diagram: 1. Pen tip; 2. Rotating pen barrel; 21. Threaded sleeve; 3. Fixed pen barrel; 31. Limiting strip; 32. Guide groove; 4. Protective cover; 5. Folding handle; 6. Pliers; 61. Clamping head; 62. First magnetic attraction; 63. Second magnetic attraction; 7. Connecting mechanism; 71. First support rod; 711. Clamping head groove; 712. Clamping block groove; 713. Lever groove; 714. Clamping block; 715. Lever; 72. Connecting... 73. Second support rod; 74. Ball head rod; 8. Sinking groove; 9. Push rod; 91. Push head; 92. Diagonal rod; 93. Support part; 10. Threaded rod; 101. Limiting groove; 11. Rotating part; 111. Ring groove; 112. Diagonal column groove; 113. Arc groove; 114. Return spring; 115. Stop block; 12. Pen refill; 13. Opening; 14. Cavity; 15. Cylindrical groove; 16. Anti-slip pad. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-4 This invention discloses a portable first aid pen, including a pen tip 1 and a pen barrel. The pen barrel is located at the upper end of the pen tip 1 and includes a rotating pen barrel 2. The rotating pen barrel 2 is threadedly connected to the pen tip 1. After the pen tip 1 and the rotating pen barrel 2 are opened, the pen core 12 can be replaced. The end of the rotating pen barrel 2 away from the pen tip 1 is rotatably connected to a fixed pen barrel 3 along the axial direction. The pen tip 1 and the rotating pen barrel 2 can rotate around the axis of the fixed pen barrel 3.

[0034] In addition, the pen barrel has symmetrical cavities 14 along its axis inside. The cavities 14 contain clamp blades 6, which can extend from the top of the pen barrel into the cavities 14. After the clamp blades 6 are removed from the cavities 14, their opposite sides can fit together. The clamp blades 6 are flat, and the end that contacts the oral cavity is thinner than the other end to facilitate insertion into the patient's mouth. The lower end of the clamp blades 6 is also provided with a connecting mechanism 7, which has both folded and open states. When the clamp blades 6 are inside the cavities 14, the connecting mechanism 7 is in the open state and provides support for the clamp blades 6. When the clamp blades 6 are outside the cavities 14, the connecting mechanism 7 can restrict the position of the clamp blades 6 and act as a support for the clamp blades 6.

[0035] Furthermore, combined Figure 8 The connecting mechanism 7 includes a first support rod 71. One end of the first support rod 71 is rotatably connected to the lower end of the clamp leaf 6 near the axis of the pen barrel. The other end of the first support rod 71 is rotatably connected to a connector 72. The other end of the connector 72 is rotatably connected to a second support rod 73. The other end of the second support rod 73 is rotatably connected to a ball head rod 74. The lengths of both the first support rod 71 and the second support rod 73 are greater than the radius of the fixed pen barrel 3, and the length of the first support rod 71 is greater than the length of the second support rod 73. This is so that when the connecting mechanism 7 changes from an open state to a folded state, one end of the second support rod 73 can support the top of the fixed pen barrel 3, and the first support rod 71 can rotate toward the axis of the fixed pen barrel 3 with a radius greater than that of the second support rod 73, thereby causing the clamp leaf 6 to move closer to and fit against the axis of the fixed pen barrel 3.

[0036] Furthermore, an ejection mechanism is provided, which can lift the first support rod 71 in the folded state, thereby opening the clamp leaf 6 to act as an opening device.

[0037] In this embodiment, when the device is used as a pen, the clamp blade 6 and the connecting mechanism 7 are housed inside the cavity 14. When the device is needed for emergency use, the clamp blade 6 and the connecting mechanism 7 can be moved outside the cavity 14. At this time, the opposite sides of the clamp blades can fit together, and the device can be used as a tongue depressor. When it is needed as a mouth opener, the clamp blade 6 is opened by the ejection mechanism, thereby opening the patient's mouth.

[0038] Combination Figures 3-5The outer circumference of the pen barrel is provided with grooves 8 corresponding to the positions of the two pincers 6. The two ends of the grooves 8 do not contact the two ends of the pen barrel. The grooves 8 are provided with openings 13 that extend to the adjacent cavities 14.

[0039] Furthermore, the upper end of the fixed pen barrel 3 is symmetrically provided with guide grooves 32 along the axis, and the lower end of the guide grooves 32 is connected to the cavity 14. The guide grooves 32 are used to change the movement direction of the connecting mechanism 7.

[0040] In addition, combined Figure 6 A push rod 9 is provided between the sink 8 and the cavity 14. The push rod 9 includes a push head 91 located in the sink 8. A diagonal rod 92 is fixed on the side of the push head 91 near the cavity 14. A support part 93 is fixed on the end of the diagonal rod 92 away from the push head 91. The upper surface of the support part 93 contacts the second support rod 73. The push rod 9 can move up and down along the opening 13. The reason for setting the diagonal rod 92 between the push head 91 and the support part 93 is to make the support part 93 higher than the push head 91, so that the push head 91 is located in the opening 13, and the connecting mechanism 7 can be pushed out to the outside of the fixed pen barrel 3.

[0041] In this embodiment, the reason for setting the sink 8 is to install the push head 91 inside the rotating pen barrel 2, thereby avoiding the push head 91 causing a rough feeling to the user when the device is used as a pen. The push rod 9 can push the connecting mechanism 7 and the clamp leaf 6 to move upward. When the push rod 9 moves to the uppermost end of the sink 8, the support part 93 can push the connecting mechanism 7 out of the cavity 14.

[0042] Combination Figure 4 , Figure 9 In order to position and fix one end of the connecting mechanism 7, a cylindrical groove 15 is provided on the surface of the cavity 14 near the pen shaft, and the head of the ball joint 74 can slide in the cylindrical groove 15 without detaching.

[0043] In addition, combined Figure 10 A rotating component 11 is provided at the upper end of the fixed pen barrel 3. The rotating component 11 has a ring structure and is rotatably connected to the fixed pen barrel 3. The outer circumference of the rotating component 11 is symmetrically provided with inclined column grooves 112 along the axial direction. The inclined column grooves 112 are connected to the cylindrical grooves 15. The outer circumference of the rotating component 11 is provided with an annular groove 111 perpendicular to the axial direction. The annular groove 111 is connected to the inclined column groove 112. The head of the ball head rod 74 can slide in the annular groove 111 and the inclined column groove 112 without disengaging.

[0044] Furthermore, combined Figure 11An arc-shaped groove 113 is provided on the surface of the rotating component 11 near the fixed pen barrel 3. A return spring 114 is provided in the arc-shaped groove 113. A stop block 115 is fixed at the top of the fixed pen barrel 3. One end of the stop block 115 extends into the arc-shaped groove 113, and one end of the return spring 114 abuts against the stop block 115. In order to ensure the stability of the rotating component 11 during use, two sets of arc-shaped grooves 113, return springs 114 and stop blocks 115 can be symmetrically arranged about the axis of the rotating component 11 to balance the force on the rotating component 11.

[0045] Furthermore, the second support rod 73 is a magnetic component, and a magnet is fixed on the surface of the guide groove 32, so that the second support rod 73 can be attracted by the magnet when it moves to the guide groove 32, thereby changing the connecting mechanism 7 from the open state to the folded state. When the second support rod 73 moves to the outside of the fixed pen barrel 3, the magnet can also position the second support rod 73, so that the second support rod 73 is attracted to the top of the fixed pen barrel 3 at the position corresponding to the guide groove 32.

[0046] In this embodiment, the push rod 9 can push the ball head rod 74 to move upward along the cylindrical groove 15. When the support part 93 pushes the connecting mechanism 7 out of the cavity 14, the ball head rod 74 moves from the cylindrical groove 15 to the inclined cylindrical groove 112. Since the overall weight of the connecting mechanism is greater than that of the rotating member 11, and the connecting mechanism 7 is also attracted by the magnet, the ball head rod 74 forces the rotating member 11 to rotate during its upward movement and compresses the return spring 114. When the ball head rod 74 enters the annular groove 111 from the inclined cylindrical groove 112, the rotating member 11 is reset under the rebound action of the return spring 114, thereby causing the ball head rod 74 to be stuck in the annular groove 111.

[0047] Combination Figure 8 To prevent the clamp blade 6 from rotating during use, a clamp head 61 is fixed on the lower surface of the clamp blade 6. The clamp head 61 is T-shaped. A clamp head groove 711 for accommodating the clamp head 61 is opened on the upper surface of the first support rod 71. A clamp block groove 712 is opened on one side of the clamp head groove 711. A clamp block 714 is provided in the clamp block groove 712. The clamp block 714 can limit the clamp head 61. One side of the clamp block 714 is arc-shaped to reduce the resistance when the clamp head 61 pushes the clamp block 714.

[0048] Furthermore, a spring is provided in the locking block groove 712, which can extend and retract the locking block 714. A lever 715 is fixedly provided on one side of the locking block 714 perpendicular to the surface. A lever groove 713 communicating with the locking block groove 712 is provided on the first support rod 71 at the position corresponding to the lever 715. The lever 715 can move within the lever groove 713.

[0049] In this embodiment, when it is necessary to limit the clamp leaf 6, the clamp leaf 6 can be rotated to make the clamp head 61 push the clamp block 714. When the lower surface of the clamp leaf 6 is in contact with the first support rod 71, the clamp block 714 will be reset under the action of the spring, thereby completing the limitation of the fresh leaf 6. When it is necessary to release the limitation of the clamp leaf 6, the lever 715 can be pulled to make the clamp block 714 retract into the clamp block groove 712, and the clamp head 61 can then disengage from the clamp head groove 711.

[0050] Combination Figure 4 , Figure 9 The ejection mechanism includes a threaded sleeve 21, which is fixed at the axis of the rotating pen 2 and rotates together with the rotating pen 2. The threaded sleeve 21 is located inside the fixed pen 3. A threaded rod 10 is threadedly connected inside the threaded sleeve 21. The length of the threaded rod 10 is greater than the length of the threaded sleeve 21. The end of the threaded rod 10 away from the rotating pen 2 passes through the fixed pen 3 and is flush with the upper surface of the rotating part 11. A limiting groove 101 is symmetrically opened along the axis on the outer circumference of the threaded rod 10. The end of the limiting groove 101 near the rotating part 11 passes through the threaded rod 10. A limiting strip 31 is fixed on the fixed pen 3 at the corresponding limiting groove 101. The limiting strip 31 can slide in the limiting groove 101 to prevent the threaded rod 10 from rotating together with the threaded sleeve 21.

[0051] In this embodiment, by rotating the pen barrel 2, the threaded sleeve 21 and the threaded rod 10 rotate relative to each other. With the cooperation of the limiting groove 101 and the limiting strip 31, the threaded rod 10 moves outward from the top of the pen barrel, thereby pushing the first support rod 71 to rotate around the end connected to the connector 72, so that the clamp blades 6 open. It is recommended to fix an anti-slip sticker 16 on the outer circumference of the pen barrel 2 (see reference). Figures 1-3 Because it requires a lot of force to open the patient's tightly closed teeth, the pen may slip. The anti-slip sticker 16 can increase the friction between the rotating pen 2 and the user's hand to prevent slippage.

[0052] Combination Figure 1 , Figure 2 To facilitate gripping by staff, a folding handle 5 is symmetrically provided along the axis on the outer circular surface of the upper end of the fixed pen barrel 3. The folding handle 5 is rotatably connected to the fixed pen barrel 3 and is hinged to the end of the corresponding opening 13 on the fixed pen barrel 3. In case of emergency, the folding handle 5 can be rotated to a horizontal position for easy gripping by staff, thereby adjusting the insertion depth of the fixed forceps blade 6 into the mouth. The forceps blade 6 may be equipped with graduations to facilitate real-time observation of the insertion depth by medical personnel.

[0053] To prevent the forceps blade 6 from colliding with the patient's teeth, a silicone sleeve is fitted on the surface of the forceps blade 6. The silicone sleeve can reduce the hardness of the forceps blade 6, thereby preventing damage to the teeth during emergency treatment.

[0054] Combination Figure 12 In order to facilitate the clamp blades 6 to fit together after being extended, a first magnet 62 is fixed on the opposite side of the upper end of each clamp blade 6, and a second magnet 63 is fixed on the opposite side of the lower end of each clamp blade 6. The first magnet 62 and the second magnet 63 are used to assist the clamp blades 6 in fitting together. Since the first magnet 62 is set on the upper end of the clamp blades 6, when the clamp blades 6 are opened from the lower end of the clamp blades 6, the magnetic force generated by the first magnet 62 will cause greater resistance to the clamp blades 6. Preferably, the magnetic force of the first magnet 62 is less than the magnetic force of the second magnet (63), so as to avoid the first magnet 62 being too strong and hindering the clamp blades 6 from opening.

[0055] Combination Figure 1 To prevent the clamp blade 6 from getting dusty, a protective cover 4 is provided at the upper end of the fixed pen barrel 3. When the device is used as a pen, the protective cover 4 can be inserted into the upper end of the fixed pen barrel 3. At the same time, a rubber ring is fixed on the surface of the opening 13. The two sides of the rubber ring are in elastic contact, which can prevent dust and debris from entering the cavity 14 from the opening 13, and does not affect the movement of the push rod 9.

[0056] The working principle and usage process of the present invention: When used as a pen, the clamp blade 6 and the connecting mechanism 7 are housed inside the cavity 14, the support part 93 of the push rod 9 abuts against the lower end of the second support rod 73, the protective cover 4 is inserted into the upper end of the fixed pen barrel 3, and the folding handle 5 fits against the outer circumference of the pen barrel.

[0057] When the device is needed for emergency rescue, remove the protective cover 4 and rotate the folding handle 5 to a horizontal position. Then push the push rod 9 to the top of the opening 13, so that the clamp blade 6 and the connecting mechanism 7 move out of the cavity 14. At this time, the ball head rod 74 moves from the cylindrical groove 15 to the inclined column groove 112 and is engaged in the annular groove 111 by the rotating part 11. Under the guidance of the guide groove 32 and the magnet, the connecting mechanism 7 changes from the open state to the folded state. The end of the second support rod 73 away from the ball head rod 74 is supported on the fixed pen barrel 3, thereby completing the fixation of the connecting mechanism 7. The clamp blade 6 is in the closed state. The timing block 714 can limit the locking head 61, thereby preventing the forceps blade 6 from rotating. The forceps blade 6 is placed between the patient's teeth, so that the fitting forceps blade 6 acts as a tongue depressor. After the patient's convulsions stop, the rotating pen 2 is rotated to make the threaded sleeve 21 rotate, thereby driving the threaded rod 10 to extend outward from the top of the pen. During the extension process, the threaded rod 10 will push the first support rod 71, thereby pushing the first support rod 71 to rotate around the end connected to the connector 72, so that the forceps blade 6 opens, thereby opening the patient's mouth. During this process, the folding handle 5 can be easily held by the user, making it convenient for the user to control the force.

[0058] After the first aid work is completed, rotate the pen barrel 2 in the opposite direction to reset the threaded rod 10 to its previous state. At this time, the cylindrical groove 15 and the inclined groove 112 are reconnected. Rotate the rotating part 11 from the side of the clamp blade 6 to make the ball head rod 74 enter the inclined groove 112 from the annular groove 111. Move the lever 715 to release the limit on the clamp head 61 so that the clamp blade 6 can rotate. Then put the clamp blade 6 and the connecting structure 7 into the cavity 14, and fit the folding handle 5 with the outer circumference of the pen barrel. Finally, insert the protective cover 4 into the upper end of the fixed pen barrel 3.

[0059] In summary, this portable first aid pen is equipped with a connecting mechanism 7 and a clamp blade 6 that can retract or extend from the cavity 14. When the connecting mechanism 7 and the clamp blade 6 are extended from the cavity 14, they can be used as a tongue depressor or mouth opener. When the connecting mechanism 7 and the clamp blade 6 are retracted from the cavity 14, they can be used as a pen. It combines the functions of a pen, mouth opener, and tongue depressor, making it portable and easy to use. By providing a protective cover 4 and a rubber ring fixed to the surface of the opening 13, dust and debris can be prevented from entering the cavity 14 from the opening 13. By providing a silicone soft sleeve on the surface of the clamp blade 6, the hardness of the clamp blade 6 can be reduced, thereby preventing damage to teeth during first aid.

[0060] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable first-aid pen, comprising a pen tip, characterized in that, Also includes: A pen barrel, wherein the pen barrel is located at the upper end of the pen tip, the pen barrel includes a rotating pen barrel, the rotating pen barrel is threadedly connected to the pen tip, and a fixed pen barrel is rotatably connected to the end of the rotating pen barrel away from the pen tip along the axial direction, and the pen tip and the rotating pen barrel are able to rotate about the axis of the fixed pen barrel; The pen barrel has symmetrical cavities along its axis inside. Each cavity contains a clamp blade, which can extend from the top of the pen barrel. The lower end of the clamp blade is rotatably connected to a connecting mechanism, which can support the clamp blade after it extends from the cavity. The connecting mechanism includes a first support rod, one end of which is rotatably connected to the lower end of the pliers near the pen shaft, the other end of which is rotatably connected to a connector, the other end of which is rotatably connected to a second support rod, and the other end of which is rotatably connected to a ball joint. The lengths of the first support rod and the second support rod are both greater than the radius of the fixed pen barrel. The length of the first support rod is greater than the length of the second support rod, so that the clamp blade can move closer to and fit against the axis of the rotating pen barrel after it extends out of the cavity. The ejection mechanism can lift the first support rod, thereby opening the clamp blades to both sides; A cylindrical groove is provided on the surface of the cavity near the axis of the pen barrel, and the head of the ball joint can slide in the cylindrical groove without detaching. A rotating component is provided at the upper end of the fixed pen barrel. The rotating component has a ring structure and is rotatably connected to the fixed pen barrel. The outer circumference of the rotating component is symmetrically provided with inclined column grooves along the axial direction, and the inclined column grooves are connected to the cylindrical grooves. The outer circumference of the rotating component is provided with an annular groove perpendicular to the axial direction, and the annular groove is connected to the inclined column grooves. The head of the ball joint can slide in the annular groove and the inclined column groove without disengaging. A clamp head is fixed on the lower surface of the clamp blade, and a clamp head groove for accommodating the clamp head is opened on the upper surface of the first support rod. A clamp block groove is opened on one side of the clamp head groove, and a clamp block is provided in the clamp block groove. The clamp block can limit the clamp head. A spring is provided in the slot of the card block, which can extend and retract the card block. A lever is fixedly provided on one side of the card block perpendicular to the surface. A lever groove communicating with the card block slot is opened on the first support rod at the position corresponding to the lever. The lever can move in the lever groove. The ejection mechanism includes a threaded sleeve, which is fixed at the axis of the rotating pen barrel and located inside the fixed pen barrel. A threaded rod is threadedly connected to the threaded sleeve. The length of the threaded rod is greater than the length of the threaded sleeve. The end of the threaded rod away from the rotating pen barrel passes through the fixed pen barrel and is flush with the upper surface of the rotating part. The outer circumference of the threaded rod is symmetrically provided with a limiting groove along the axis, and the fixed pen barrel is fixed with a limiting strip at the corresponding limiting groove, and the limiting strip can slide within the limiting groove.

2. The portable first aid pen according to claim 1, characterized in that: The outer circumference of the pen barrel is provided with grooves corresponding to the positions of the two clamp blades, and the grooves are provided with openings that extend to the adjacent cavities. The upper end of the fixed pen barrel is symmetrically provided with guide grooves along the axis, and the lower end of the guide grooves is connected to the cavity. The guide grooves are used to change the movement direction of the connecting mechanism. A push rod is provided between the settling tank and the cavity. The push rod includes a push head located in the settling tank. An inclined rod is fixed to the side of the push head near the cavity. A support part is fixed to the end of the inclined rod away from the push head. The upper surface of the support part contacts a second support rod. The push rod can move up and down along the opening.

3. A portable first-aid pen according to claim 2, characterized in that: An arc-shaped groove is formed on the surface of the rotating component near the fixed pen barrel. A return spring is provided in the arc-shaped groove. A stop block is fixed at the top of the fixed pen barrel. One end of the stop block extends into the arc-shaped groove, and one end of the return spring abuts against the stop block.

4. A portable first-aid pen according to claim 2, characterized in that: The second support rod is a magnetic component, and a magnetic sticker is fixed on the surface of the guide groove. The magnetic sticker can attract and position the second support rod.

5. A portable first-aid pen according to claim 2, characterized in that: The outer circular surface of the upper end of the fixed pen barrel is symmetrically provided with a folding handle along the axis, and the folding handle is hinged to the corresponding opening end of the fixed pen barrel.

6. A portable first aid pen according to claim 1, characterized in that: The surface of the pliers blade is covered with a silicone soft sleeve, which can reduce the hardness of the pliers blade; A first magnetic attraction is fixed on the opposite side of the upper end of each of the two clamp blades, and a second magnetic attraction is fixed on the opposite side of the lower end of each of the two clamp blades. The first magnetic attraction and the second magnetic attraction are used to assist the clamp blades in contact, and the magnetic force of the first magnetic attraction is less than that of the second magnetic attraction.

7. A portable first aid pen according to claim 2, characterized in that: The upper end of the fixed pen barrel is provided with a protective cover, and the upper end of the fixed pen barrel can be inserted into the protective cover; A rubber ring is fixed to the surface of the opening.

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