CN219074618U

CN219074618U - Tin sucking gun

Info

Publication number: CN219074618U
Application number: CN202223138289.2U
Authority: CN
Inventors: 陈加华; 陈阳; 胡天一; 张佳亮
Original assignee: Jiangsu Xiangcheng Secondary Specialized School
Current assignee: Jiangsu Xiangcheng Secondary Specialized School
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-26
Anticipated expiration: 2032-11-25

Abstract

The utility model belongs to the technical field of manufacturing of electronic circuit board repairing equipment, and particularly relates to a tin sucking gun which comprises a gun shell, a gun handle and a trigger, wherein the gun handle and the trigger are radially arranged on the gun shell, a through hole with an axis parallel to the axis of the gun shell is arranged on the gun handle, the inner surface of the through hole is in sliding connection with the position between two ends of the trigger, a pulley is arranged at one end of the trigger facing the tail end of the gun shell, a tin sucking pipe is arranged at the head end of the gun shell, a cavity communicated with the tin sucking pipe is axially arranged in the gun shell, a piston is arranged in the cavity and fixedly connected with one end of the cavity facing the tail end of the gun shell, one surface of the piston provided with the spring is fixedly connected with one end of a rope, the tail end of the gun shell is provided with a wire hole, the other end of the rope penetrates the wire hole and is fixedly connected with the outer surface of the gun shell, and a tin sucking Guan Jiare device is arranged on the gun shell, so that the problem that at present, the tin sucking device which is simple in structure, low in cost and continuously and stably controllable in negative pressure is solved.

Description

Tin sucking gun

Technical Field

The utility model belongs to the technical field of manufacturing of electronic circuit board repair equipment, and particularly relates to a tin suction gun.

Background

At present, when removing the components on the PCB, tools such as a tin absorber, a tin absorbing belt and a soldering iron are used, but a great deal of practice has proved that the manner can damage the bonding pad of the circuit board, and solutions are presented for the manner, for example, the patent application number is as follows: in the utility model application of CN201610337601.0, the actions of tin plating and tin removal are integrated. The design has increased the detachable container of storing useless tin, makes things convenient for the clearance of useless tin. The middle-through air suction pipeline is added on the conventional soldering iron head meeting the requirements of various section treatment for tinning, the front end of the air pipe is a small-aperture pipeline with the diameter of 0.5-1MM, and the rear end of the air pipe is enlarged and is communicated with the rear-section air pipe, so that the tinning and tin-removing soldering iron head is formed. The rear section air pipe passes through the cylinder and the center of the piston to reach the rear end and is communicated with the airtight tin storage chamber. An air inlet hole is formed in the distance between the piston compression section and the cylinder top, so that the cylinder is communicated with an air pipe, and a medium-through type cylinder structure is formed. The cylinder spring releases and pushes the piston to form negative pressure to act on the tin sucking port, and the air pressure and the tension enable the dissolved tin to enter a small-caliber air pipe section at the front end of the soldering iron head and to obtain certain acceleration to move backwards. When the waste tin enters the air pipe of the large-aperture section, the air pressure acting force is reduced, and the waste tin enters the tin storage chamber along the rear section pipeline at a certain speed by inertia to finish collection.

The problems of the methods still exist, namely high use cost or device cost, complex structure, low use efficiency and easy hole blocking, and the reason is that: firstly, some schemes use an electric vacuum pump to generate negative pressure to suck tin, and the structure is necessarily complex and the manufacturing cost is high; secondly, before some schemes (namely the patent application) using tension springs are used for sucking tin, the springs are manually pulled up to store energy, when the button springs are pressed down to reset and pull the piston to generate negative pressure to suck soldering tin on a welding spot during tin sucking, and then the springs are manually pulled to continuously operate when the tin sucking is performed, so that time is wasted, the use efficiency is low, and the use is laborious.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, designs a tin sucking gun by adopting a mode of arranging a pulley, a trigger matched rope and a spring, can enable negative pressure to be continuously stable and controllable in a tin sucking process, has a simple structure, and solves the problem that no tin sucking device with simple structure, low cost and continuously stable and controllable negative pressure exists at present.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a tin absorbing gun, includes the rifle shell, radially locates rifle handle, trigger on the rifle shell, be equipped with the axis with the parallel through-hole of axis of rifle shell on the rifle handle, the internal surface sliding connection of through-hole between the both ends of trigger, the trigger is gone up to the one end of rifle shell tail end is equipped with the pulley, the head end of rifle shell is equipped with the tin absorbing tube, be equipped with in the rifle shell with the cavity of tin absorbing tube intercommunication, be equipped with the piston in the cavity, the piston pass through the spring with the one end fixed connection of cavity orientation rifle shell tail end, the one side fixed connection rope's that is equipped with on the piston one end, the tail end of rifle shell is equipped with the line hole, the other end of rope wears out line hole fixed connection is at the surface of rifle shell, be in between the both ends of rope the rifle shell overcoat with the circumference roll connection of pulley, be equipped with on the rifle shell and inhale tin Guan Jiare ware.

Preferably, the side wall of the cavity is provided with a material taking opening near the head end of the gun shell, and the gun shell is provided with a switch door in airtight fit with the material taking opening.

Preferably, the tin-absorbing tube heater comprises a solder iron core, an L-shaped solder iron head and a heat shield, wherein the heat shield is arranged on the outer surface of the gun shell and is opposite to one side of the trigger, one section of the L-shaped solder iron head is positioned in the heat shield, the solder iron core is arranged around the L-shaped solder iron head in the heat shield, the other section of the L-shaped solder iron head is fixedly connected with the outer surface of the tin-absorbing tube, and a power wire of the solder iron core extends out of the heat shield.

Preferably, an opening is formed in one end, facing the tail end of the gun shell, of the heat shield, and the L-shaped soldering iron head is arranged at one end, facing the head end of the gun shell, of the heat shield.

Preferably, one end of the tin absorbing pipe far away from the gun shell is communicated with a gun head, and the inner diameter of the tin absorbing pipe is larger than that of the gun head.

Preferably, the head end and the tail end of the gun shell are respectively provided with a head end cover body and a tail end cover body which are in airtight fit with the gun shell, the head end cover body, the tail end cover body and the gun shell enclose the cavity, the tail end cover body is provided with the wire hole, and the head end cover body is provided with the tin suction tube.

Preferably, the circumferential surface of the pulley is coaxially provided with a wire groove, and the wire groove, the wire hole and the connection point of the wire hole and the outer surface of the gun shell are in the same plane.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model designs the tin sucking gun by adopting a mode of arranging the pulley, the trigger and the rope and the spring, which can ensure that the negative pressure is continuously stable and controllable in the tin sucking process, has a simple structure, and solves the problem that no tin sucking device with simple structure, low cost and continuously stable and controllable negative pressure exists at present.

2. According to the utility model, the material taking opening is arranged, so that tin sucked in the cavity can be removed in time according to actual conditions after tin is sucked.

3. According to the utility model, the L-shaped soldering iron head is heated by the soldering iron core, and heat is transferred to the tin sucking pipe, so that tin at a tin sucking position can be melted, the power wire of the soldering iron core extends out of the heat shield, and the power wire can be directly connected to a power supply, thereby facilitating operation.

4. The utility model is provided with the opening to facilitate the power cord to be led out of the heat shield, thereby eliminating the need for installing a battery on the gun shell.

Drawings

FIG. 1 is a schematic view of the external structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic view of the back side of FIG. 1;

FIG. 4 is a diagram of the relationship of the pulley to the trigger.

Wherein, 1, gun shell; 2. gun handle; 3. a trigger; 4. a through hole; 5. a pulley; 6. a tin absorbing tube; 7. a cavity; 8. a piston; 9. a spring; 10. a rope; 11. a wire hole; 12. a material taking port; 13. opening and closing a door; 14. a soldering iron core; 15. an L-shaped soldering bit; 16. a heat shield; 17. an opening; 18. a gun head; 19. a head end cap body; 20. a tail end cover body; 21. wire slot.

Detailed Description

Referring to fig. 1-4, a tin sucking gun comprises a gun shell 1, a gun handle 2 and a trigger 3 which are radially arranged on the gun shell 1, wherein a through hole 4 with the axis parallel to the axis of the gun shell 1 is arranged on the gun handle 2, the inner surface of the through hole 4 is in sliding connection with the space between two ends of the trigger 3, one end of the trigger 3, which faces towards the tail end of the gun shell, is provided with a pulley 5, the head end of the gun shell 1 is provided with a tin sucking pipe 6, a cavity 7 which is communicated with the tin sucking pipe 6 is axially arranged in the gun shell 1, a piston 8 is arranged in the cavity 7, the piston 8 faces towards one end of the tail end of the gun shell through a spring 9, one end of a rope 10 is fixedly connected to the piston 8, the tail end of the gun shell 1 is provided with a wire hole 11, the other end of the rope 10 penetrates out of the wire hole 11 to be fixedly connected with the outer surface of the gun shell 1, the space between two ends of the rope 10 is in rolling connection with the circumferential surface of the pulley 5, and a tin sucker Guan Jiare is arranged on the gun shell 1.

In this embodiment, when in use, firstly, the tin suction Guan Jiare device is opened, so that heat is transferred to the tin suction tube 6, at this time, the tin suction tube 6 can melt tin at a position where tin needs to be removed, then one end of the tin suction tube 6 away from the gun case 1 is aligned with the position where tin needs to be removed, then a user holds the gun handle 2 by one hand, and pulls the trigger 3 with an index finger, because the trigger 3 is slidably connected with the gun case 1 through the through hole 4, the trigger 3 moves towards the rear end of the gun case 1 in the process of pulling the trigger with the index finger of the user, in this process, the trigger 3 drives the pulley 5 to move towards the rear end of the gun case 1, at this time, the rope 10 sleeved on the pulley 5 is acted by the pulley 5, the piston 8 moves towards the rear end of the gun case 1 against the elasticity of the spring 9, so that negative pressure is generated in the cavity 7 by the piston 8, the tin melted by the tin suction tube 6 is sucked into the cavity 8, after the trigger 3 is released by the user, the piston 8 moves towards the rear end of the gun case 1 under the action of the spring 9, and the negative pressure is not generated in the cavity 8, and the cavity 3 is convenient to work; because the pulley 5 is equivalent to a movable pulley, and one end of the rope 10 is fixedly connected with the outer surface of the gun shell 1, therefore, in the process that the trigger 3 is buckled by a user to move towards the rear end of the gun shell 1, the moving distance of the pulley 5 is half of the moving distance of the piston 8, so that the user can pry the piston 8 to move by a larger displacement by using a smaller displacement, the tin sucking effect is enhanced, and compared with the prior art, the utility model does not need to use an electric vacuum pump to generate negative pressure to suck tin, thereby having simple structure and low manufacturing cost; the utility model can continue to operate without manually pulling the spring to store energy, thereby not wasting time to pull the spring by hand and improving the use efficiency.

As a preferable mode, the side wall of the cavity 7 is provided with a material taking opening 12 near the head end of the gun shell 1, the gun shell 1 is provided with a switch door 13 in airtight fit with the material taking opening 12, and after tin absorption, tin absorbed in the cavity 7 can be removed in time according to actual conditions by arranging the material taking opening 12.

As a preferred mode, the tin-absorbing tube heater comprises a solder iron core 14, an L-shaped solder iron head 15 and a heat shield 16, wherein the heat shield 16 is arranged on one side of the outer surface of the gun shell 1, which faces away from the trigger 3, one section of the L-shaped solder iron head 15 is positioned in the heat shield 16, the solder iron core 14 is arranged in the heat shield 16 around the L-shaped solder iron head 15, the other section of the L-shaped solder iron head 15 is fixedly connected with the outer surface of the tin-absorbing tube 6, and a power wire of the solder iron core 14 extends out of the heat shield 16.

The L-shaped soldering iron head 15 is heated through the soldering iron core 14, heat is transferred to the tin sucking pipe 6, so that tin needing to be sucked at the tin sucking position can be melted, and a power line of the soldering iron core 14 extends out of the heat shield 16 to be directly connected to a power supply, so that the operation is convenient.

Preferably, an opening 17 is provided at an end of the heat shield 16 facing the tail end of the gun case, and the L-shaped soldering bit 15 is provided at an end of the heat shield 16 facing the head end of the gun case. The opening 17 is provided to facilitate the removal of the power cord from the heat shield 16, thereby eliminating the need for a battery to be mounted on the gun housing 1.

As a preferable mode, a gun head 18 is arranged at one end of the tin sucking pipe 6 far away from the gun shell 1 in a communicating way, and the inner diameter of the tin sucking pipe 6 is larger than that of the gun head 18. By providing the gun head 18 to cooperate with the tin suction tube 6 and setting the inner diameter of the tin suction tube 6 to be larger than the inner diameter of the gun head 18, the negative pressure can be increased, and the tin suction efficiency can be improved.

As a preferable mode, the head end and the tail end of the gun shell 1 are respectively provided with a head end cover 19 and a tail end cover 20 which are in airtight fit with the gun shell 1, the head end cover 19, the tail end cover 20 and the gun shell 1 enclose the cavity 7, the tail end cover 20 is provided with the wire hole 11, and the head end cover 19 is provided with the tin suction tube 6. The head end cover 19 and the tail end cover 20 can be arranged to facilitate the installation of the piston 8 and the spring 9 in the cavity and the assembly of the components of the utility model during the manufacturing process.

As a preferable mode, as shown in fig. 4, a wire groove 21 is coaxially provided on the circumferential surface of the pulley 5, and the wire groove 21, the wire hole 11, and a connection point of the wire hole 11 and the outer surface of the gun case 1 are in the same plane. Through setting up wire casing 21, can restrict the position of rope 10, simultaneously, with line hole 11 the tie point setting of the surface of line hole 11 and rifle shell 1 can reduce rope 10 by friction in the removal in-process as far as possible in the coplanar, improves rope 10's life.

Claims

1. The utility model provides a tin absorbing gun, includes rifle shell (1), radially locates rifle handle (2), trigger (3) on rifle shell (1), its characterized in that, be equipped with the axis on rifle handle (2) with through-hole (4) of the axis parallel of rifle shell (1), the internal surface sliding connection of through-hole (4) between the both ends of trigger (3), the orientation on trigger (3) one end of rifle shell tail end is equipped with pulley (5), the head end of rifle shell (1) is equipped with tin absorbing tube (6), be equipped with in rifle shell (1) with cavity (7) of tin absorbing tube (6) intercommunication in the cavity (7), be equipped with piston (8) in cavity (7) through spring (9) with one end fixed connection of cavity (7) towards rifle shell tail end, the one end of being equipped with spring (9) fixed connection rope (10) on piston (8), the tail end of rifle shell (1) is equipped with wire hole (11), the other end of rifle shell (10) is equipped with wire (11) and wears out in the other end of wire (10) is equipped with in the surface (5) of connecting between the rifle shell (1) and the surface of rolling shell (Guan Jiare) on the surface of the roller (521).

2. A tin sucking gun as claimed in claim 1, wherein a material taking opening (12) is arranged on the side wall of the cavity (7) near the head end of the gun shell (1), and a switch door (13) which is in airtight fit with the material taking opening (12) is arranged on the gun shell (1).

3. The tin-absorbing gun according to claim 1, wherein the tin-absorbing tube heater comprises a soldering iron core (14), an L-shaped soldering iron head (15) and a heat shield (16), the heat shield (16) is arranged on one side, facing away from the trigger (3), of the outer surface of the gun shell (1), one section of the L-shaped soldering iron head (15) is positioned in the heat shield (16), the soldering iron core (14) is arranged in the heat shield (16) around the L-shaped soldering iron head (15), the other section of the L-shaped soldering iron head (15) is fixedly connected with the outer surface of the tin-absorbing tube (6), and a power wire of the soldering iron core (14) extends out of the heat shield (16).

4. A tin pick-up gun according to claim 3, wherein an opening (17) is provided in an end of the heat shield (16) facing the tail end of the gun housing, and the L-shaped soldering bit (15) is provided in an end of the heat shield (16) facing the head end of the gun housing.

5. A tin sucking gun as claimed in any one of claims 1 to 4, wherein a gun head (18) is provided in communication with one end of the tin sucking tube (6) remote from the gun housing (1), and the inner diameter of the tin sucking tube (6) is larger than the inner diameter of the gun head (18).

6. The tin sucking gun according to claim 5, wherein a head end cover (19) and a tail end cover (20) which are in airtight fit with the gun shell (1) are respectively arranged at the head end and the tail end of the gun shell (1), the cavity (7) is formed by enclosing the head end cover (19), the tail end cover (20) and the gun shell (1), the wire hole (11) is formed in the tail end cover (20), and the tin sucking tube (6) is arranged in the head end cover (19).

7. A tin sucking gun as claimed in claim 5, wherein a wire groove (21) is coaxially arranged on the circumferential surface of the pulley (5), and the wire groove (21), the wire hole (11) and the connection point of the wire hole (11) and the outer surface of the gun housing (1) are in the same plane.