Manual ear piercing gun

Abstract

A hand-held ear-piercing drill, comprising a front part (1) and a rear part (2). Both parts are fitted together and can move linearly relative to each other. The front part (1) has a mounting slot into which a sliding rail (6) is inserted. Between the side wall of the mounting slot and the end of the sliding rail (6) opposite the rear part (2), a mounting slot (9b) for the earring holder (9) is formed. A sliding seat (5) for mounting the earring (10) is connected to the sliding rail (6) and can move together with the front part (1) and the rear part (2). A push rod (3) is connected to the rear part (2).The relative positions of the push rod (3) and the rear of the gun (2) are fixed, and the push rod (3) can push an earring (10a) in the earring mounting portion (10) toward the mounting portion of the earring holder (9) during the linear movement of the rear of the gun (2) toward the front of the gun (1). The handheld ear piercing gun can overcome the defect of the prior art, where the earring trigger spring can cause impact damage to the user's earlobe due to inertia when the trigger spring performs the piercing.

Description

Manual ear piercing gun This disclosure claims priority for Chinese Patent Application No. 202210004299.2, filed with the State Intellectual Property Office of China (SIPO) on January 4, 2022, entitled "MANUAL EAR PIERCING GUN" Technical field This disclosure pertains to the technical field of auxiliary mounting devices for accessories and relates, in particular, to a manual ear-piercing gun. Background of the technique Ear piercing guns have been around for a long time. Some piercing guns typically include a gun body, an earring mounting part, and an earring clasp mounting part. During ear piercing, the earring mounting part and the earring clasp mounting part move closer together, so they are both closer to the earlobe. The earring mounting part moves continuously forward, and the earring post pierces the earring clasp through the earlobe. Then, the earring mounting part and the clasp mounting part move away from each other and separate from the body of the ear piercing gun, leaving the earring and clasp in the earlobe. This completes the piercing process.Depending on the different forces that control the earring, these ear piercing guns are generally classified as automatic or manual. Automatic ear piercing guns take little time to pierce and complete the piercing instantly with less pain, in addition to being easy for operators to use. A disadvantage is that the stud can cause impact damage to a thicker earlobe, particularly due to inertia when the stud travels rapidly through the lobe under the action of a spring. Document CN111358125A describes an ear-piercing gun. Summary of the invention Therefore, the present disclosure provides a manual ear piercing gun, which can overcome the defect that the earring drive spring of an automatic ear piercing gun of the prior art can cause impact damage to the user's earlobe due to inertia when said spring drives the earring to perform the piercing. To solve the above problem, the present disclosure provides a hand-held ear-piercing gun, comprising a gun front and a gun rear, wherein the gun front and gun rear are fitted together and linearly movable relative to each other; a mounting slot is formed in the gun front, and a sliding rail element is provided in the mounting slot; a mounting slot for an earring back mounting portion is formed between the end of the sliding rail element away from the gun rear and a side wall of the mounting slot; a sliding seat for mounting an earring mounting portion is slidably connected to the sliding rail element; the sliding seat is movable in conjunction with the relative linear movement of the gun front and gun rear;A push rod is connected to the rear of the gun; the positions of the push rod and the rear of the device are fixed to each other, and the push rod and the rear of the device can push a slope bolt in the slope bolt mounting portion so that it moves toward the bolt back mounting portion during the linear movement of the rear of the device toward the front of the device. The sliding rail member has two sliding rail arms that extend to one side of the rear of the gun; a U-shaped opening structure is formed between the two sliding rail arms; the sliding seat is arranged in the U-shaped opening structure, and the sliding seat has an upper seat body in a region above the sliding rail arms and a lower seat body in a region below the sliding rail arms. The other wall of the mounting slot is composed of a central side wall; the end of the sliding rail element near one of the side walls of the mounting slot is fixed to the front of the barrel; and the free ends of the two sliding rail arms are inserted into a slot located below the central side wall. A projection is provided on the underside of the center side wall, and the lower surface of the projection rests against the upper surfaces of the free ends of the sliding rail arms. In some unclaimed implementations, the earring clasp mounting part and the earring pin mounting part are packaged in a blister box, and the blister box is removed after the earring clasp mounting part has been mounted into the mounting slot and the earring pin mounting part has been mounted into the sliding seat. In some unclaimed implementations, the blister box has an outer tab, the center side wall has a horizontal wall extending towards one side of the sliding seat, and the extension length of the horizontal wall is not less than the width of the outer tab. The manual ear-piercing gun also includes a movable rod, one end of which is connected to the sliding seat, while the other end rests against the wall of an inner cavity at the rear of the gun via a movable rod spring. In some implementations, a deflector is provided in the inner cavity at the rear of the gun, arranged adjacent to the movable rod and used to limit the extension length of the movable rod. In some implementations, the front of the gun has a positioning pin, the rear of the gun has a positioning slot, and the positioning pin is inserted into the positioning slot to limit the stroke of relative linear movement between the front and rear of the gun. In some implementations, a return spring is sandwiched between the front of the gun and the rear of the gun, so that the front of the gun and the rear of the gun can be separated from each other after a user releases the force applied to move the front of the gun and the rear of the gun toward each other. In the manual ear-piercing gun provided by this disclosure, when a user applies force to the front and rear of the gun so that they move linearly toward each other, the sliding seat moves near one side of the earring back under the guidance of the guide rail element, and the pusher rod moves with the rear of the gun near the earring post and pushes the post through the earlobe and into the ear, thus completing the piercing process. Because the positions of the pusher rod and the rear of the gun are relatively fixed, impact damage caused by inertia is avoided when the pusher rod of the automatic ear-piercing gun is actuated by the trigger spring. Brief description of the drawings FIG.1 is an exploded schematic view of a manual ear-piercing gun according to an embodiment of the present disclosure; FIG.2 is an assembly diagram of the manual ear-piercing gun of FIG.1; FIG.3 is a sectional view of the manual ear-piercing gun of FIG.2; FIG. 4 is an assembly diagram of the manual ear piercing gun and the earring backing and pin component packaged in a non-claimed blister box according to an embodiment of the present disclosure; FIG. 5 is a process diagram of aligning the earring pin in the manual ear piercing gun according to an embodiment of the present disclosure; FIG. 6 is a state diagram of the push rod in the handheld ear-piercing gun pushing the earring post to pierce the user's earlobe according to an embodiment of this disclosure; and FIG. 7 is a state diagram of the restoration to the original state after the handheld ear-piercing gun has completed the ear piercing according to an embodiment of this disclosure; in which: 1: front of the gun; 1a: groove; 1b: center side wall; 1c: projection; 2: rear of the gun; 3: push rod; 4: movable rod; 5: sliding seat; 6: sliding guide rail; 6a: screw hole; 6b: sliding guide arm; 6c: U-shaped recess; 7: movable rod spring; 7a: deflector; 8: return spring; 9: earring back mounting part; 9a: earring back; 9b: mounting groove; 10: earring pin mounting part; 10a: earring pin; 10b: earring pin 1 retaining element; 10c: earring pin 2 retaining element; 11: positioning groove; 12: positioning pin; 13: space; 14: blister box; and 14a: tab. Detailed description With reference to Figures 1 to 7, according to one embodiment of the present disclosure, a hand-held ear-piercing gun is provided, comprising a gun front portion 1 and a gun rear portion 2. The gun front portion 1 and the gun rear portion 2 are interlocked and linearly movable relative to each other. A mounting groove is formed in the gun front portion 1, and a sliding rail element 6 is provided in said groove. Between the end of the sliding rail element 6 furthest from the gun rear portion 2 and one of the side walls of the mounting groove, a mounting groove 9b is formed for an earring back mounting portion 9. A sliding seat 5 for mounting an earring post mounting portion 10 is slidably connected to the sliding rail element 6.The sliding seat 5 can move together with the relative linear movement of the front of gun 1 and the rear of gun 2. A push rod 3 is connected to the rear of gun 2. The positions of the push rod 3 and the rear of gun 2 are relatively fixed, and the push rod 3 and the rear of gun 2 can push a button pendant 10a in the mounting portion of the button pendant 10 so that it moves toward the mounting portion of the pendant back 9 during the linear movement of the rear of gun 2 toward the front of gun 1.In this technical solution, when the user applies force to the front of gun 1 and the rear of gun 2 so that they both move linearly toward each other (i.e., both fold), the sliding seat 5 moves near one side of the earring back 9a under the guidance of the sliding guide element 6, and the push rod 3 moves with the rear of gun 2 near the stud earring 10a and pushes the stud earring 10a through the earlobe and into the earlobe to complete the ear piercing process. Since the positions of the push rod 3 and the rear of gun 2 are relatively fixed, impact damage caused by inertia is prevented when the push rod of the automatic ear piercing gun is actuated by the trigger spring. The sliding guide element 6 has two sliding guide arms 6b extending to one side of the rear of the gun 2, and a U-shaped opening structure is formed between the two sliding guide arms 6b. The sliding seat 5 is arranged in the U-shaped opening structure, and the sliding seat 5 has an upper seat body in a region above the sliding guide arms 6b and a lower seat body in a region below the sliding guide arms 6b. Thus, the closed position (i.e., the gap in the U-shaped structure 6c) of the U-shaped opening structure can limit the movement position of the sliding seat 5 to one side of the pendant closure 9a, thereby ensuring consistent spacing between the pendant bolt 10a and the pendant closure 9a. The mounting part of earring 10 plugs into a mounting space on the sliding seat 5, thus ensuring the universality and reuse of the manual ear piercing gun. The other wall of the mounting slot consists of a central side wall 1b, and the end of the sliding rail element 6 closest to one of the side walls of the mounting slot is fixedly connected to the front of the gun 1. Specifically, a screw hole 6a is formed at the end of the mounting slot, which can be fixedly connected to the front of the gun 1 by means of a corresponding screw. The free ends of the two arms of the sliding rail 6b are inserted into a groove 1a located below the central side wall 1b. The free ends of the arms of the sliding rail 6b can be limited to a certain extent by the groove 1a, thus ensuring the positional reliability of the sliding rail member 6. Since the mounting part of the earring 10 is plug-in connected to the sliding seat 5, the mounting part of the earring 10 will drive the sliding seat 5 to exert an upward force when pulled out of the sliding seat 5, and the lower body of the sliding seat 5 will drive the free ends of the two arms of the sliding rail 6b, so that the arms of the sliding rail 6b form an upward bending moment, which is unfavorable for the sliding of the sliding seat 5 connected to the arms of the sliding rail 6b, and damage to the sliding rail element 6 will reduce the service life of the hand-held ear piercing gun.Based on this hidden problem, a corresponding projection 1c has been provided on the lower face of the middle side wall 1b, and the lower surface of the projection 1c rests against the upper surfaces of the free ends of the sliding rail arms 6b, so that the positional stability of the sliding rail arms 6b can be effectively ensured and upward deformation of the free ends can be effectively avoided. The earring back mounting part 9 and the earring post mounting part 10 are packaged in a blister box 14, and the blister box 14 is removed after the earring back mounting part 9 has been mounted into the mounting slot 9b and the earring post mounting part 10 has been mounted into the sliding seat 5, thus preventing hands from coming into contact with and contaminating the sterilized post and improving safety. The blister box 14 has an outer flange 14a (of about 5 mm); the central side wall 1b has a horizontal wall extending to one side of the sliding seat 5, and the extension length of the horizontal wall is no less than the width of the outer flange 14a (specifically referring to space 13 in FIG. 4).Thus, the horizontal wall limits the position of one side of the sliding seat 5, and the correct alignment of the blister box 14 can be ensured once the reset of the front of the gun 1 and the rear of the gun 2 has been secured. In some implementations, the manual ear-piercing gun further includes a movable rod 4, one end of which is connected to the sliding seat 5, while the other end rests against the wall of an inner cavity in the rear of the gun 2 via a movable rod spring 7, as shown in Figure 3. The movable rod 4 and the movable rod spring 7 are arranged in corresponding transverse grooves, ensuring stability and reliability during the telescopic process. A deflector 7a is provided in the inner cavity of the rear of the gun 2, adjacent to the movable rod 4, and serves to limit the extension length of the movable rod 4.It should be understood that the extension force of the movable rod 4 should be based on the distance as the target distance between the sliding seat 5 connected at one end and the back of the earring 9a, and this target distance can be determined according to the thickness of the earlobe. The front of gun 1 has a positioning pin 12, the rear of gun 2 has a positioning slot 11, and the positioning pin 12 is inserted into the positioning slot 11 to limit the stroke of the relative linear movement between the front of gun 1 and the rear of gun 2. The length of the positioning slot 11 determines the maximum closing stroke of the front of gun 1 and the rear of gun 2, i.e., the maximum stroke to which the push rod 3 can push the pendant bolt 10a. A return spring 8 is sandwiched between the front of gun 1 and the rear of gun 2, so that the front of gun 1 and the rear of gun 2 can move apart from each other after the user releases the force applied to moving the front of gun 1 and the rear of gun 2 towards each other, thereby restoring the initial state of the handheld ear-piercing gun. The following describes in more detail the operating process of the manual ear-piercing gun described in this disclosure. When it is necessary to pierce the ear, the lower part of the pistol-shaped structure is held in the palm of the hand, and the palm is contracted to compress the return spring 8, so that the rear of the gun 2 moves towards the front of the gun 1 (closing process). Since the spring of the moving rod 7 is also compressed, the sliding seat 5 and the earring mounting part 9 located in the sliding seat 5 move closely to the mounting part of the earring clasp 10. At this moment, it is equivalent to the earring 10a moving towards the earlobe to be pierced. Pointing towards the position to be pierced, the return spring 8 is continuously compressed.When the slider moves through the gap in the U-shaped structure 6c and can advance no further, the earring pin 10 reaches the position where it is to be pierced, and the return spring 8 is continuously compressed, and the push rod 3 pushes the earring pin 10a into the mounting portion of the earring pin 10 so that it moves continuously and penetrates the earring backing 9a through the earlobe. Since the mounting portion of earring clasp 9 is designed with a mechanism whereby the earring clasp 9a will separate from the mounting portion of earring clasp 9 when the earring pin 9 is inserted into the earring clasp 9a, and the mounting portion of earring pin 10 is also designed with a mechanism whereby the earring pin 10a or its fastening elements 10b and 10C will separate from the mounting portion of earring pin 10 when the earring pin 10 is inserted into the earring back, so that when the return spring 8 is released, the front of the gun 1, the rear of the gun 2, and the movable rod 4 will automatically reset, and the stud earring 10a and the earring back 9a will separate from the mounting portion of the stud earring 10 and from the mounting portion of the earring back 9, and will then remain in the earlobe.Thus, the entire ear piercing process is complete. Experts in the field will readily understand that the above advantages can be freely combined and overlapped if they do not conflict. The foregoing description shows only preferred embodiments of the present disclosure and is not intended to limit it. Any modification or improvement made without departing from Principle X of the present disclosure will fall within the scope of protection of the present disclosure. The foregoing description merely shows preferred implementations of the present disclosure, and it should be noted that, for a person skilled in the art, various improvements and modifications may be made without departing from the technical principle of the present disclosure, and these improvements and modifications will be deemed to fall within the scope of protection of the present invention, which is defined exclusively by the appended claims.

Claims

1. A hand-operated ear-piercing gun, comprising a gun front (1) and a gun rear (2), wherein the gun front (1) and gun rear (2) are fitted together and can be moved linearly relative to each other; the gun front (1) is provided with a mounting groove,and a sliding guide member (6) is provided in the mounting slot; between the end of the sliding rail element (6) away from the rear of the gun (2) and one of the side walls of the mounting slot, a mounting slot (9b) is formed for a mounting part of the pendant back (9); a sliding seat (5) for mounting a mounting part of the pendant (10) is slidably connected to the sliding rail element (6); the sliding seat (5) can move together with the relative linear movement of the front of the gun (1) and the rear of the gun (2); a push rod (3) is connected at the rear of the gun (2); characterized in that the position of the push rod (3) with respect to the rear of the gun (2) is fixed,and the push rod (3) and the rear of the gun (2) are capable of pushing a button bolt (10a) in the button bolt mounting portion (10) so that it moves towards the bolt back mounting portion (9) during the linear movement of the rear of the gun (2) towards the front of the gun (1); the sliding rail member (6) has two sliding rail arms (6b) extending to one side of the rear of the piston (2); a U-shaped opening structure is formed between the two sliding rail arms (6b); the sliding seat (5) is arranged in the U-shaped opening structure,and the sliding seat (5) has an upper seat body in a region located above the sliding rail arms (6b) and a lower seat body in a region located below the sliding rail arms (6b); the other wall of the mounting slot is comprised of a central side wall (1b); the end of the sliding rail element (6) near one of the side walls of the mounting slot is fixedly affixed to the front of the barrel (1); and the free ends of the two sliding rail arms (6b) are inserted into a groove (1a) located below the central side wall (1b); a projection (1c) is provided on the lower face of the central side wall (1b), and the lower surface of the projection (1c) is in contact with the upper surfaces of the free ends of the sliding rail arms (6b); the handheld ear-piercing gun further comprises a movable rod (4),1. The manual ear-piercing gun of claim 1, wherein a deflector (7a) is provided in the interior cavity of the rear of the gun (2), arranged adjacent to the movable rod (4) and used to limit the travel length of the movable rod (4).

2. The manual ear-piercing gun of claim 1, wherein the front of the gun (1) has a positioning pin (12), and the rear of the gun (2) has a positioning slot (11).and the positioning pin (12) is inserted into the positioning slot (11) to limit the stroke of relative linear movement between the front of the gun (1) and the rear of the gun (2).

4. The handheld ear-piercing gun according to claim 1, wherein a return spring (8) is interposed between the front of the gun (1) and the rear of the gun (2), such that the front of the gun (1) and the rear of the gun (2) are configured to move away from each other, after a user releases the applied force so that the front of the gun (1) and the rear of the gun (2) move towards each other.

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