Ear tag gun for installing ear tags

Abstract

The present invention relates to an ear tag gun for installing ear tags, comprising a gun body, a U-shaped ear tag mounting frame fixed at the front end of the gun body, a sliding groove provided in the gun body, a sliding block slidably provided in the sliding groove, a connecting rod connected to the front end of the sliding block, a head of the connecting rod passing through the sliding groove wall and vertically moving relative to the side wall of the ear tag mounting frame in the U-shaped opening, a first spring sleeved on the connecting rod between the sliding block and the sliding groove wall, a mounting seat for installing the ear tag is provided on the front end of the connecting rod and the side wall of the ear tag mounting frame opposite thereto, a driving mechanism for driving the sliding block to slide is connected to the tail end of the sliding block, a trigger control mechanism is also provided on the gun body, the trigger control mechanism comprises a trigger, a multi-link transmission mechanism with one end hinged to the trigger and the other end elastically connected to the gun body and capable of positioning the sliding block to slide. The invention is simple and labor-saving to operate, effectively reduces labor intensity, improves labor efficiency, and is convenient and practical.

Description

Technical Field

[0001] The invention relates to veterinary instruments, in particular to an ear tag gun for installing ear tags with reduced labor. Background Art

[0002] An ear tag is a common mark applied to an animal's ear for animal management. It is used to prove the animal's identity and is a sign that carries the individual information of the animal. At present, ear tags are placed on animal ears using ear tag pliers. When placing ear tags, the two handles of the ear tag pliers need to be pressed by hand, which is quite laborious. If the force is too small, the male and female ear tags cannot be installed well. Long-term and vigorous use will cause harm to the user, and the hands are easily blistered, which is not conducive to use. Summary of the invention

[0003] In view of the existing deficiencies, the present invention provides a labor-saving ear tag gun for installing ear tags.

[0004] The technical solution adopted by the present invention to solve its technical problem is: an ear tag gun for installing an ear tag, comprising a gun body, a front end of the gun body is fixedly connected to a U-shaped ear tag mounting frame, a sliding groove is arranged in the gun body, a sliding block is slidably arranged in the sliding groove, a connecting rod is connected to the front end of the sliding block, the head of the connecting rod passes through the sliding groove wall or sequentially passes through the sliding groove wall and the side wall of the U-shaped opening of the ear tag mounting frame and moves vertically relative to the side wall of the U-shaped opening of the ear tag mounting frame as the sliding block slides in the U-shaped opening of the ear tag mounting frame, a first spring is sleeved on the connecting rod and is located between the sliding block and the sliding groove wall, and a connecting rod is provided on the front end of the connecting rod and the side wall of the ear tag mounting frame opposite thereto. A mounting seat for installing the ear tag, the tail end of the sliding block is connected to a driving mechanism for driving the sliding block to slide, and a trigger control mechanism is also provided on the gun body, the trigger control mechanism includes a trigger partially located outside the gun body, a multi-link transmission mechanism located in the gun body, one end of which is hinged to the trigger and the other end is elastically connected to the gun body and can position the sliding block to slide, a limiting groove is provided on the sliding block, a protrusion is provided on the other end of the multi-link transmission mechanism, a positioning hole is provided on the side wall of the sliding groove corresponding to the protrusion, and the protrusion can be movably extended or retracted to match the positioning hole and engage or disengage with the limiting groove; the multi-link transmission mechanism is elastically connected to the gun body through a third spring arranged at the other end of the multi-link transmission mechanism.

[0005] Preferably, the multi-link transmission mechanism is a four-bar transmission mechanism consisting of four connecting rods.

[0006] Preferably, the driving mechanism comprises a pull rod connected to the rear end of the sliding block and in the same axial direction as the sliding block, the pull rod passes through the gun body and slides relative to the gun body, and a second spring is sleeved on the pull rod and is located between the rear end of the sliding block and the side wall of the sliding groove.

[0007] Preferably, the pull rod, the sliding block and the connecting rod are of an integrated structure.

[0008] Preferably, the driving mechanism includes a bidirectional driving motor, which is all arranged in the gun body, a ball screw transmission connected to the driving motor, a control circuit board that controls the operation of the driving motor, and a power supply that provides power to the driving motor and the control circuit board. The screw or nut of the ball screw is connected to the tail end of the sliding block, and the nut or screw of the ball screw is correspondingly transmission connected to the driving motor. The control circuit board is provided with a switch that can be pressed against the other end of the multi-link transmission mechanism to turn on or off.

[0009] Preferably, the driving mechanism includes a bidirectional driving motor disposed in the gun body, a gear connected to the rotating shaft of the driving motor, a spur rack meshing with the gear, a control circuit board for controlling the operation of the driving motor, and a power supply for providing power to the driving motor and the control circuit board. One end of the spur rack is connected to the tail end of the sliding block, and the control circuit board is provided with a switch that can be pressed against the other end of the multi-link transmission mechanism to turn on or off.

[0010] Preferably, the power source is a rechargeable lithium-ion battery, the gun body is provided with a charging hole for charging the power source, and the gun body is also provided with an indicator light electrically connected to the control circuit board.

[0011] Preferably, the switch is a two-stage switch.

[0012] The beneficial effects of the present invention are as follows: the present invention utilizes mechanical force through a driving mechanism to perform ear tagging, and when in use, utilizes the force of a finger pressing a trigger through a multi-link transmission mechanism to start the driving mechanism's tagging action, which greatly saves force; at the same time, during transmission by the multi-link transmission mechanism, each moving pair is subjected to less pressure per unit area, and is conducive to lubrication, less wear, longer service life, simpler manufacturing, and easy to obtain higher precision; the operation is simple and labor-saving, and can effectively reduce labor intensity, improve labor efficiency, and is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the internal structure of an embodiment of the present invention;

[0014] Figure 2 is a schematic structural diagram of an embodiment of the present invention;

[0015] Figure 3 is a schematic diagram of the internal structure of a ball screw used in an embodiment of the present invention;

[0016] Figure 4 is a schematic diagram of the internal structure of a spur rack used in an embodiment of the present invention;

[0017] Names and serial numbers of parts in the figure: 1-gun body 10-sliding groove 100-positioning hole 2-ear tag mounting bracket 20-U-shaped opening 21-mounting seat 3-sliding block 30-limiting groove 4-connecting rod 5-first spring 6-driving mechanism 60-pull rod 61-second spring 62-driving motor 63-ball screw 64-control circuit board 65-power supply 66-switch 67-gear 68-spur rack 7-trigger control mechanism 70-trigger 71-multi-link transmission mechanism 710-protrusion 711-third spring. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the purpose, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described in conjunction with the accompanying drawings and embodiments below, and a clear and complete description will be given. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention. In addition, the directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", etc., are only referenced to the directions of the attached diagrams. The directional terms used are for better and clearer explanation and understanding of the present invention, rather than indicating or implying the orientation that the present invention must have, and therefore cannot be understood as limitations on the present invention.

[0019] Embodiments of the present invention Figures 1 to 4As shown in the figure, an ear tag gun for installing ear tags comprises a gun body 1. The gun body 1 has a handle for easy gripping and an accommodating space for facilitating the movement of the firing pin like a conventional pistol shell. The gun body can be formed by a structure in which the left and right shells are engaged or the upper and lower shells are engaged. A U-shaped ear tag mounting bracket 2 is fixedly connected to the front end of the gun body 1. The U-shape means that one end thereof is open and the open ends are two parallel end faces. When installing the ear tags, the male ear tags and the female ear tags can be installed vertically relative to each other without causing misalignment of the installation of the two, thereby ensuring the quality of the installation. The lower part of the ear tag mounting bracket 2 can be set to an arc, square or triangular state according to different requirements. No matter what shape the lower part is, it will not affect the parallel structure of the open ends and will not affect As for the installation of the ear tag, a sliding groove 10 is provided in the gun body 1, and a sliding block 3 is slidably provided in the sliding groove 10. The sliding block 3 slides in the sliding groove 10, dividing the sliding groove 10 into two parts, front and rear. The front end of the sliding block 3 is connected to a connecting rod 4, and the head of the connecting rod 4 passes through the groove wall of the sliding groove 10 or passes through the groove wall of the sliding groove 10 and the side wall of the U-shaped opening 20 of the ear tag mounting frame 2 in sequence and moves vertically relative to the side wall of the U-shaped opening 20 of the ear tag mounting frame 2 in the U-shaped opening 20 of the ear tag mounting frame 2 as the sliding block 3 slides. That is to say, one side wall of the opening of the ear tag mounting frame 2 is installed at the front end of the gun body 1, and the other side is opposite to the front end of the gun body. At this time, the head of the connecting rod 4 passes through the groove wall of the sliding groove 10 and is relative to the ear tag mounting frame The side walls of the U-shaped opening 20 of the mounting frame 2 move vertically, that is to say, the connecting rod 4 is arranged in a manner perpendicular to the side walls of the U-shaped opening 20, and the front end of the connecting rod 4 is in the opening of the U-shaped opening 20 of the ear tag mounting frame 2. When the two side walls of the ear tag mounting frame 2 are at the same height, the head of the connecting rod 4 will pass through the groove wall of the sliding groove 10 and the side wall of the ear tag mounting frame 2 in sequence and move in the U-shaped opening 20. When the two side walls of the ear tag mounting frame 2 are not of the same height, the relatively short end can be arranged at the bottom of the front end of the gun body 1. At this time, the head of the connecting rod 4 only needs to pass through the groove wall of the movable groove 10, and when it is installed at the front end of the gun body 1, the head of the connecting rod 4 will also pass through the groove wall of the sliding groove 10 and the side wall of the ear tag mounting frame 2 in sequence. The side wall moves in the U-shaped opening 20, and when the relatively high side is installed at the front end of the gun body 1, the head of the connecting rod 4 will also pass through the groove wall of the sliding groove 10 and the side wall of the ear tag mounting frame 2 in sequence and move in the U-shaped opening 20. At this time, it is only necessary to make the top of the shorter end and the top of the gun body 1 in the same plane, so as to ensure that the head of the connecting rod 4 in the U-shaped opening 20 corresponds to the side wall of the U-shaped opening 20, which ensures the correct application of force when punching the ear tag. The connecting rod 4 is provided with a first spring 5 located between the sliding block 3 and the groove wall of the sliding groove 10. When the head of the connecting rod 4 moves toward the side wall of the U-shaped opening 20 of the ear tag mounting frame 2 opposite to it, the first spring 5 is compressed, and the groove wall of the sliding groove 10 is subjected to pressure.The front end of the sliding block 3 is pushed backward, and a mounting seat 21 for mounting the ear tag is provided on the front end of the connecting rod 4 and the side wall of the ear tag mounting frame 2 opposite thereto. When one side is a mounting seat for mounting a male ear tag, the other side is a mounting seat corresponding to the female ear tag. The tail end of the sliding block 3 is connected to a driving mechanism 6 for driving the sliding block 3 to slide. The driving mechanism 6 can be a purely mechanical drive according to different usage requirements. After applying an external force, marking is performed by force transmission, or it can be an electric drive for marking by force transmission. A trigger control mechanism 7 is also provided on the gun body 1. The trigger control mechanism 7 includes a trigger 70 partially located outside the gun body 1, a multi-link transmission mechanism 71 located inside the gun body 1, one end of which is hinged to the trigger 70 and the other end is elastically connected to the gun body 1 and can position the sliding block 3 to slide. In this way, the ear tag is marked by mechanical force through the driving mechanism 6. When in use, the sliding block 3 is first positioned by the multi-link transmission mechanism 71. After positioning, the end of the head of the connecting rod 4 and the U-shaped opening 20 opposite thereto are The side wall is at the farthest distance position, and then the corresponding ear tags are installed on their respective mounting seats 21, and the trigger 70 is pressed by a finger. At this time, very little force can be used to operate it, and then the multi-link transmission mechanism 71 is transmitted to release the positioning state of the multi-link transmission mechanism 71 and the sliding block 3, and the elastic connection between the multi-link transmission mechanism 71 and the gun body 1 generates an elastic force, and the sliding block 3 moves forward under the drive mechanism 6, thereby driving the ear tag installed at the head of the connecting rod 6 to move, so that the two ear tags match and engage, and at this time, the first spring 5 is compressed under the sliding of the sliding block 3, and the forward pressure is applied to the sliding block 3. The backward thrust is applied to the sliding block 3, and the marking action is completed by the force of the finger pressing the trigger 70, which greatly saves force. Moreover, when the multi-link transmission mechanism 71 is transmitted, the pressure per unit area of ​​each moving pair is small, which is conducive to lubrication, light wear, and long service life. Its manufacturing is also relatively simple, and it is easy to obtain high precision, simple and labor-saving operation, which can effectively reduce labor intensity, improve labor efficiency, and is convenient and practical. After the finger is released, the other end of the multi-link transmission mechanism 71 returns to its original state with the gun body 1 under the action of elastic force. As for the positioning between the multi-link transmission mechanism 71 and the sliding block, a limiting groove 30 is provided on the sliding block 3, and a protrusion 710 is provided on the other end of the multi-link transmission mechanism 71. A positioning hole 100 is provided on the side wall of the sliding groove 10 corresponding to the protrusion 710. The protrusion 710 can be movably extended or retracted into the positioning hole 100 to match or disengage with the limiting groove 30. In the unused state, one end of the protrusion 710 is elastically connected to the gun body 1. When the sliding block 3 slides, the sliding block 3 will apply force on the protrusion 710, and the protrusion 710 will retract into the positioning hole 100 due to the action of the elastic force, which will not affect the sliding of the sliding block 3. When the limiting groove 30 is aligned with the protrusion 710, the protrusion 710 extends out of the positioning hole 100 under the action of the elastic force and is stuck in the limiting groove 30 to position the sliding block 3. When in use,When the trigger 70 is pulled, the multi-link transmission mechanism 71 separates the engagement between the protrusion 710 and the limit groove 30, and the sliding block 3 slides under the drive of the driving mechanism 6. At this time, in order to facilitate the engagement between the limit groove 30 and the protrusion 710, the limit groove 30 and the protrusion 710 are both structures with a right triangle cross section, and the triangle is inclined toward the front end of the sliding block 3, so that the two will not be disengaged in the backward direction. As for the multi-link transmission mechanism 71, the multi-link transmission mechanism 71 is a four-bar transmission mechanism composed of four connecting rods. Such a mechanism is simple and easy to produce and implement, and does not require a complex structure for connection. The multi-link transmission mechanism 71 is elastically connected to the gun body 1 through a third spring 711 disposed at the other end of the multi-link transmission mechanism 71. The two ends of the third spring 711 are correspondingly connected to the gun body 1 and the other end of the multi-link transmission mechanism 71. The protrusion 710 is extended and retracted in the positioning hole 100 to match or disengage with the limiting groove 30 under the coordinated action of the third spring 711, the trigger 70 and the multi-link transmission mechanism 71.

[0020] Further improvements such as Figure 1 As shown in , for the driving mechanism 6, a purely mechanical structure can be used according to different purposes by applying external force, or a mechanism using a motor can be used without external force. As for the purely mechanical driving mechanism, the driving mechanism 6 includes a pull rod 60 connected to the rear end of the sliding block 3 and in the same axial direction as the sliding block 3. The pull rod 60 passes through the gun body 1 and slides relative to the gun body 1. The pull rod 60 is sleeved with a second spring 61 located between the rear end of the sliding block 3 and the side wall of the sliding groove 10. The two ends of the second spring 61 are correspondingly connected to the sliding block 3 and the side wall of the sliding groove 10. When using such a structure, an external force is first used, that is, the pull rod 60 is pulled by hand to position the sliding block 3, and the pull rod 60 and the sliding block 3 are in the same axial direction. At this time, it is only necessary to set a hole matching the extension of the pull rod 60 on the gun body 1. It is not necessary to set other structures on the gun body 1 to ensure the smoothness of the sliding block 3. At the same time, the integrity of the gun body 1 is also ensured. The external force is also smaller than the force used by holding the traditional ear tag pliers to press the ear tag pliers. At this time, the second spring 61 is compressed, and a forward thrust is applied to the sliding block 3 and a backward pressure is applied to the groove wall of the sliding groove 10. The first spring 5 is stretched, and a forward pulling force is applied to the sliding block 3 and a backward pulling force is applied to the groove wall of the sliding groove 10. Then, the trigger 70 is pulled, and the protrusion 710 and the limit groove 30 are disengaged. Under the joint action of the first spring 5 and the second spring 61, the connecting rod 4 is pushed forward, thereby completing the marking action. The pull rod 60, the sliding block 3, and the connecting rod 4 are of an integrated structure. The integrated structure is more convenient for production, does not require an additional connecting structure, and has a more solid structure.

[0021] Further improvement, for the drive structure using the motor, a situation is as follows Figure 3 As shown in the figure, the driving mechanism 6 includes a bidirectional driving motor 62, a ball screw 63, which is transmission-connected to the driving motor 62, a control circuit board 64, which controls the operation of the driving motor 62, and a power supply 65 for providing power to the driving motor 62 and the control circuit board 64. The screw or nut of the ball screw 63 is connected to the tail end of the sliding block 3, and the nut or screw of the ball screw 63 is correspondingly transmission-connected to the driving motor 62. The control circuit board 64 is provided with a switch 66 which can be pressed against the other end of the multi-link transmission mechanism 71 to turn on or off. The bidirectional driving motor 62 drives the sliding block 3 forward or backward through the ball screw 63 during forward or reverse rotation, thereby driving the connecting rod 4 to move forward and backward to complete the marking action. Under this structure, when the trigger 70 is pulled, the switch 66 is pressed through the transmission of the multi-link transmission mechanism 71, and then the control circuit board 64 is electrically connected, thereby starting the rotation of the drive motor 62, and the rotation of the drive motor 62 is transmitted to the ball screw 63. The transmission connection between the ball screw 63 and the drive motor 62 can be transmitted to the ball screw 63 through the gear 67 fixedly connected to the rotating shaft of the drive motor 62. After the ball screw 63 drives the sliding block 3 to slide backward for a fixed stroke, the drive motor 62 stops rotating, and the head of the connecting rod 4 and the U-shaped opening are closed. The side wall of the U-shaped opening 20 is at the farthest distance, and the fixed stroke is also the effective stroke of the ball screw 63. After that, the corresponding ear tags are installed on each ear tag mounting seat. After the trigger 70 is pressed again, the switch 66 is pressed again to start the drive motor 62. At this time, the drive motor 62 is driven to rotate in the opposite direction, and the ball screw 63 drives the sliding block 3 to slide forward, and the connecting rod 4 moves toward the side wall of the U-shaped opening 20, thereby realizing the entire marking action. In this structure, the first spring 5 can buffer the force applied to the sliding block 3 to ensure the smooth progress of the marking process. Another situation is that, Figure 4As shown in the figure, the driving mechanism 6 includes a bidirectional driving motor 62, a gear 67 connected to the rotating shaft of the driving motor 62, a spur rack 68 meshing with the gear 67, a control circuit board 64 for controlling the operation of the driving motor 62, and a power supply 65 for providing power to the driving motor 62 and the control circuit board 64. One end of the spur rack 68 is connected to the tail end of the sliding block 3. The control circuit board 64 is provided with a switch 66 that can be pressed against the other end of the multi-link transmission mechanism 71 to turn on or off. In this way, the sliding of the sliding block 3 is achieved by the horizontal movement of the driving transmission spur rack 68 of the driving motor 62. Similarly, the switch 66 also turns on the driving motor 62 to rotate in different directions under two touches to complete the installation of the ear tag, and the action of putting the ear tag on the animal's ear is realized, thereby realizing the automatic installation of the ear tag on the animal. At this time, in order to facilitate the control of the switch, the switch 66 is a two-stage switch, which can better control the operation of the drive motor 62. The first press starts the first stage of the two-stage switch, the drive motor 62 rotates forward or reversely, and the transmission slide block 3 moves backward. The second press starts the second stage of the two-stage switch, the drive motor 62 reverses or rotates forward, and the transmission slide block 3 moves forward, realizing the whole process of marking. In the case of motor drive, the power supply 65 is a rechargeable lithium-ion battery, and the gun body 1 is provided with a charging hole (not marked) for charging the power supply 65. The gun body 1 is also provided with an indicator light (not marked) electrically connected to the control circuit board 64, and different indicators are used to indicate different functions, such as power supply quantity, different running directions of the drive motor, etc.

[0022] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An ear tag gun for installing an ear tag, characterized in that: The invention comprises a gun body, the front end of which is fixedly connected to a U-shaped ear tag mounting frame, a sliding groove is arranged in the gun body, a sliding block is slidably arranged in the sliding groove, a connecting rod is connected to the front end of the sliding block, the head of the connecting rod passes through the sliding groove wall or sequentially passes through the sliding groove wall and the side wall of the U-shaped opening of the ear tag mounting frame and moves vertically relative to the side wall of the U-shaped opening of the ear tag mounting frame as the sliding block slides in the U-shaped opening of the ear tag mounting frame, a first spring is sleeved on the connecting rod and is located between the sliding block and the sliding groove wall, a mounting seat for mounting the ear tag is arranged on the front end of the connecting rod and the side wall of the ear tag mounting frame opposite thereto, and the tail end of the sliding block A driving mechanism for driving the sliding block to slide is connected, and a trigger control mechanism is also provided on the gun body. The trigger control mechanism includes a trigger partially located outside the gun body, a multi-link transmission mechanism located in the gun body, one end of which is hinged to the trigger and the other end is elastically connected to the gun body and can position the sliding block to slide. A limiting groove is provided on the sliding block, and a protrusion is provided on the other end of the multi-link transmission mechanism. A positioning hole is provided on the side wall of the sliding groove corresponding to the protrusion, and the protrusion can be movably extended or retracted to match or disengage the positioning hole with the limiting groove; the multi-link transmission mechanism is elastically connected to the gun body through a third spring arranged at the other end of the multi-link transmission mechanism.

2. The ear tag gun for installing an ear tag according to claim 1, characterized in that: The multi-link transmission mechanism is a four-bar transmission mechanism composed of four connecting rods.

3. The ear tag gun for installing an ear tag according to claim 1, characterized in that: The driving mechanism comprises a pull rod connected to the rear end of the sliding block and on the same axial direction as the sliding block. The pull rod passes through the gun body and slides relative to the gun body. A second spring is sleeved on the pull rod and is located between the rear end of the sliding block and the side wall of the sliding groove.

4. The ear tag gun for installing ear tags according to claim 3, characterized in that: The pull rod, the sliding block and the connecting rod are of an integrated structure.

5. The ear tag gun for installing an ear tag according to claim 1, characterized in that: The driving mechanism includes a bidirectional driving motor, which is all arranged in the gun body, a ball screw that is transmission-connected to the driving motor, a control circuit board that controls the operation of the driving motor, and a power supply that provides power to the driving motor and the control circuit board. The screw or nut of the ball screw is connected to the tail end of the sliding block, and the nut or screw of the ball screw is correspondingly transmission-connected to the driving motor. The control circuit board is provided with a switch that can be pressed against the other end of the multi-link transmission mechanism to turn on or off.

6. The ear tag gun for installing an ear tag according to claim 1, characterized in that: The driving mechanism includes a bidirectional driving motor, which is arranged in the gun body, a gear connected to the rotating shaft of the driving motor, a spur rack meshing with the gear, a control circuit board for controlling the operation of the driving motor, and a power supply for providing power to the driving motor and the control circuit board. One end of the spur rack is connected to the tail end of the sliding block, and the control circuit board is provided with a switch that can be pressed against the other end of the multi-link transmission mechanism to turn on or off.

7. The ear tag gun for installing ear tags according to claim 5 or 6, characterized in that: The power source is a rechargeable lithium-ion battery. The gun body is provided with a charging hole for charging the power source. The gun body is also provided with an indicator light electrically connected to the control circuit board.

8. The ear tag gun for installing ear tags according to claim 5 or 6, characterized in that: The switch is a two-stage switch.

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