CN2400185Y - High Torque Electric Silicone Gun - Google Patents

Abstract

The utility model relates to a high-torque electric silicone gun which can avoid dripping phenomenon. It has a rechargeable battery in the handle of the gun body, and a driving structure for pushing the silicone is arranged in the gun body, and the driving structure is decelerated by a motor through a planet. The gear, through the two gears, drives an actuating wheel with a wedge tooth, and actuates or stops the advance of the push rod through a driving structure corresponding to the wedge tooth, so as to increase the torque of the silicone gun, and at the same time, when the push rod is stopped, it can be used The driving structure and the actuating wheel are in an idling state to prevent dripping, and it is convenient for users to charge at any time.

Description

High Torque Electric Silicone Gun

The utility model relates to an electric silicone gun, in particular to a high-torque electric silicone gun which can avoid dripping.

Silicone is an adhesive that creates a seal. In order to facilitate the injection of silica gel into the seam and quickly coagulate, most of the silica gel is made into a thick shape and placed in a glue tank, so that the silicone gun can be used to squeeze out the silica gel in the glue tank, while the traditional silicone gun is mainly Actuate the push rod by pulling the wrench, so that the push rod squeezes the back end of the glue tank to squeeze out the silicone. But this kind of traditional structure is not very convenient to use, and it is extremely laborious, so its efficiency is not very good, thus there have been pneumatic and electric silicone guns.

Regarding the design of the electric silicone gun, since its reduction ratio is completely based on the relationship between the rack and the drive gear, and because the size of the silicone gun is limited, the reduction ratio of its transmission is usually limited, and whether it is electric or pneumatic Both of them need to be connected by power cord or gas pipe to provide power energy for the silicone gun. This kind of design not only makes the user often limited by the interference of the above-mentioned electric wires or air pipes in operation, causing inconvenience in use, but also the volume of the machine tool is huge, occupying the working space, and invisibly increasing the cost of the equipment.

In addition, whether it is a traditional silicone gun or a pneumatic or electric silicone gun, its pushing structure is to push the glue tank at any time, so even when it is not pushing the glue tank, it will support the rear end of the glue tank. Although the push rod will not push forward, the thick silicone itself will produce an elastic reaction force, and when the push rod cannot be pushed backward, the reaction force has to continue to act on the silica gel. In this way, the silicone in the glue tank will still be extruded automatically until the reaction force disappears, thus forming a dripping phenomenon. This not only causes unnecessary waste of silica gel, but also the dripping of silica gel in the hole will condense, thus causing inconvenience to work.

From the above, we know that due to the imperfect design of the existing silicone guns, there are generally shortcomings of insufficient torque and dripping, which cause inconvenience in work. Therefore, it is really necessary to improve the torque and dripping problems of the existing silicone guns. , to improve its convenience.

The purpose of this utility model is to provide a high-torque electric silicone gun that avoids dripping. A rechargeable battery for providing power is inserted on the handle of the gun body. Driving structure, the driving structure has an actuating wheel, and a driving structure is provided in the driving structure that can be relatively engaged with or separated from the actuating wheel, so that the user can let the pushing structure push the silicone tank or it is idling according to the needs, effectively avoiding Drip occurs, reducing unnecessary waste and improving convenience of use.

The technical scheme of the utility model is as follows:

A high torque electric silicone gun, the silicone gun includes:

A gun body, the gun body is provided with a driving structure, and the front end of the gun body is fixed with a covered cylinder to facilitate the replacement of the glue tank by the user;

A drive structure, the drive structure is provided with a planetary reduction gear set driven by a motor on the base body, a driving gear driven by the planetary reduction gear is provided outside the base body, and a driving gear driven by the planetary reduction gear is arranged on the base body. a transmission shaft, the transmission shaft is fixed with an actuating wheel inside the seat body, and is used to mesh with a driving structure;

A pushing structure, the driving structure is a sliding sleeve on the transmission shaft of the driving structure, a sliding block with a tapered accommodating hole is set on the sliding sleeve, and a sliding sleeve is provided that can be combined with or separated from the actuating wheel. The driving wheel is formed with serrations of a certain width on the surface periphery of the driving wheel, a spring is arranged between the lower section of the slide block and the inner wall of the gun, and a button is arranged below the transmission shaft of the seat body, and the other side of the pivot is worn. One end is installed at the lower end of the slider, and the button is supported on the inner wall of the gun by a torsion spring. The elastic coefficient of the torsion spring is greater than the spring of the support slider. The block can be inserted into the accommodating hole of the slider correspondingly;

A push rod, the push rod is installed in the seat body, the surface of the push rod is formed with a series of serrations that can engage with the driving wheel, and the front end of the push rod is provided with the bottom surface of the plastic tank, which prevents dripping High-torque electric silicone gun structure.

The gun body is formed with a handle, and a rechargeable battery is inserted in the handle.

An axially extending wedge tooth is formed on one side edge of the driving wheel, and a series of corresponding saw teeth are formed on the periphery of the driving wheel of the pushing structure.

The base body is provided with a micro switch corresponding to the rear end of the gun body, and the rear end of the push rod is provided with a limit block corresponding to the micro switch, so as to automatically cut off the power when the silica gel is pushed.

A dial protrudes from the front end of the button, and a micro switch corresponding to the dial is fixed on the bottom surface of the base body.

Compared with the prior art, the utility model has obvious advantages and positive effects. Known by above-mentioned technical scheme, the utility model has following advantages at least:

1. High torque. Because the motor of the utility model utilizes the planetary reduction gear set to drive the driving gear, and the driving gear drives the passive gear with a larger diameter to increase the reduction ratio, it can operate with low power and high torque, which improves its efficiency and saves power supply.

2. Easy to operate. The power supply of the utility model comes from a rechargeable battery, which is directly inserted into the handle of the gun body in a plug-in manner. When the user uses the silicone gun, there will be no wire interference problem, and the rechargeable battery can be plugged and replaced at any time, which is convenient for use. or operate.

3. Avoid dripping phenomenon. Because the utility model stops driving the push rod, because the driving wheel can be separated from the actuating wheel, the driving wheel is idling and no longer limited by force, so the reaction force of the extrusion of the silica gel can act on the push rod backward. Rod, and get relief, effectively avoiding the phenomenon of dripping.

4. Return quickly. As mentioned above, since the driving wheel engaged with the push rod is in an idling state and will not reversely drive the motor, the user can quickly push the push rod back to its original position without damaging the motor, which improves the convenience of use.

Further illustrate the concrete structure of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is a three-dimensional appearance diagram of the silicone gun of the present invention, which is used to illustrate the configuration of the present invention and its relative relationship.

Fig. 2 is an exploded schematic diagram of the driving structure of the utility model, which is used to illustrate the composition and shape of the main components of the utility model.

Fig. 3 is a side partial sectional view of the driving structure of the present invention, which is used to illustrate the relative position of the slider relative to other components.

Fig. 4 is a top view of the driving structure of the present invention, further illustrating the configuration of the pushing structure and its corresponding relationship.

Fig. 5 is a schematic view of the end face of the drive structure of the present invention.

Fig. 6 is a schematic diagram of the action of the utility model.

The utility model is a high-torque electric silicone gun that can prevent dripping. First, referring to Fig. 1 and Fig. 2, the silicone gun is mainly provided with a driving structure 2 in a gun-like hollow gun body 10, the gun body A rechargeable battery 12 is arranged in the handle portion 11 of 10, so that the user can replace the rechargeable battery 12 at any time to avoid the interference of electric wires. A barrel 15 is fixed at the front end of the gun body 10 , and a cover 16 is pivotally arranged on the barrel 15 to facilitate the replacement of the glue tank 50 by the user. The gun body 10 is provided with a push rod 40 actuated by the driving structure 2 at the rear end of the glue tank 50 , and the push rod 40 can squeeze the glue tank 50 by using the push piece 42 at the front end.

Regarding the composition of the above-mentioned driving structure 2, please refer to Fig. 2, Fig. 3 and Fig. 4. The driving structure 2 is provided with a planetary reduction gear set 22 driven by a motor 21 on a -shaped seat body 20 to improve the silicone gun. At the same time, the planetary reduction gear set 22 is connected with a driving gear 23 outside the side wall of the seat body 20, and a transmission shaft 25 is pivotally provided on the seat body 20, and the transmission shaft 25 is fixedly provided with a driving gear 23 on the outside of the seat body 20. The driven gear 26 is meshed with the drive shaft 25 and an actuating wheel 27 is fixed inside the base body 20 . An axially extending wedge tooth 270 is formed on one end edge of the actuating wheel 27 for meshing with a pushing structure 30 . The base body 20 is provided with a micro switch 24 corresponding to the rear end of the gun body 10, so that when the push rod 40 is pushed to the bottom end, the operation of the motor 21 can be stopped. A sleeve 28 protrudes from the front end of the seat body 20 for the sleeve 15 accommodating the glue tank 50 (as shown in FIG. 1 ).

The above-mentioned pushing structure 30 can be referred to FIG. 5 . A sliding sleeve 31 is slidably provided on the transmission shaft 25 of the driving structure 2, and a sliding block 32 is set on the sliding sleeve 31. A series of tapered accommodation holes 320 are formed in the middle section of the sliding block 32. The sliding sleeve 31 is sequentially provided with a driving wheel 33 , and a series of saw teeth 330 are formed around the driving wheel 33 for actuating the push rod 40 . A wedge tooth 331 is formed on the driving wheel 33 corresponding to the end of the driving wheel 27 on the transmission shaft 25 , so that the driving wheel 33 can be driven by the sliding sleeve 31 and engage or separate from the driving wheel 27 . A spring 34 is braced between the lower section of the slide block 32 and the inner wall of the gun body 10 for pushing the slide block 32 .

The seat body 20 is provided with a piercing pivot 35 below the transmission shaft 25, and a button 36 protruding from the gun body 10 is pivotally arranged on the piercing pivot 35. Lower end, button 36 utilizes torsion spring 38 to prop up with gun body 10 inner wall, makes button 36 reset automatically, and the elastic coefficient of torsion spring 38 is greater than the spring of propping slide block 32. A side piece 37 extends upward from the upper side of the button 36 . The side piece 37 protrudes from the side of the slider 32 with a conical top support piece 370 . The top support piece 370 can be inserted into the receiving hole 320 of the slider 32 correspondingly. A toggle block 360 protrudes from the front end of the button 36 , and a micro switch 39 corresponding to the toggle block 360 is mounted on the bottom surface of the base body 20 , so that when the user presses the button 36 , the micro switch 39 can be toggled to start the motor 21 .

A series of serrations 400 are formed on the surface of the push rod 40 disposed on the base body 20 , and the serrations 400 of the push rod 40 can engage with the serrations 330 of the driving wheel 33 of the pushing structure 30 . The rear end of the push rod 40 is provided with a limit block 41 corresponding to the micro switch 24 of the driving structure 2, so that when the push rod 40 pushes the silica gel, it can touch the micro switch 24 to turn off the motor. The front end 40 of the push rod 40 is provided with a push piece 42 (as shown in FIG. 1 ) for pushing the silicone, thereby forming a high-torque electric silicone gun structure that can prevent dripping.

The utilization of the present utility model can refer to Fig. 3, Fig. 4, Fig. 5 and Fig. 6, before starting, the support block 370 on the side panel 37 of the button 36 can be pressed against the side of the slider 32, and the slider 32 is moved toward the side of the slider 32. The inner wall of the gun body 10 moves so that the driving wheel 33 on the slider 32 can be separated from the driving wheel 27 on the transmission shaft 25, so that when the glue tank 50 is inserted into the cylinder body 15, due to the sliding sleeve 31 and the driving wheel The wheel 33 and the transmission shaft 25 are in a pivoted shape, so the push rod 40 can be moved to the end without reversely acting on the motor 21 of the driving structure 2 to avoid damage to the motor 21 .

When the user presses the button 36 protruding from the gun body 10, the toggle block 360 on the button 36 will toggle the micro switch 39, and then start the motor 21. At the same time, the button 36 pivots to make the side piece 37 push the support block The displacement of 370 corresponds to the accommodating hole 320 of the slider 32, so that the slider 32 loses its restriction, so the slider 32 can slide together with the sliding sleeve 31 under the action of the spring 34, and the driving wheel 33 is pushed to the working position by the sliding sleeve 31. driving wheel 27, and make the driving wheel 33 mesh with the wedge teeth 331, 270 of the driving wheel 27, so that the driving wheel 27 driven by the motor 21 can synchronously drive the driving wheel 33, and because the driving wheel 33 and the push rod 40 are meshed with each other, Therefore, the displacement of the push rod 40 can be smoothly driven to achieve the purpose of releasing the silica gel in the glue tank 50 .

And when the user releases the button 36, then because the elastic coefficient of the torsion spring 38 is greater than that of the spring 34, the button 36 can be affected to return to its original position. And move out the accommodating hole 320 of slide block 32 smoothly, slide block 32 is pressed to the other side at the same time, slide sleeve 31 and drive wheel 33 are displaced synchronously, drive wheel 33 is separated from actuating wheel 27, can make drive wheel like this 33 forms an idling state, and the push rod 40 is no longer restricted, so the reaction force of the silica gel in the glue tank 50 can be relieved backwards, so that the glue tank 50 can be prevented from dripping.

When the push rod 40 has finished pressing the silica gel of the glue tank 50, the limit end of the push rod 40 will just touch the micro switch 24 on the seat body 20, and the motor 21 can be turned off immediately to prevent the motor 21 from being damaged. Furthermore, when the drive wheel 33 is separated from the actuation wheel 27, since the drive wheel 33 will not reversely drive the motor 21 through the actuation wheel 27, the user can quickly return the push rod 40 to its original position without any other abdication structure to facilitate construction operations.

Claims (5)

1. A high-torque electric silicone gun, characterized in that the silicone gun includes: A gun body, the gun body is provided with a driving structure, and the front end of the gun body is fixed with a covered cylinder; A drive structure, the drive structure is provided with a planetary reduction gear set driven by a motor on the base body, a driving gear driven by the planetary reduction gear is provided outside the base body, and a driving gear driven by the planetary reduction gear is arranged on the base body. The transmission shaft, the transmission shaft is fixed with an actuating wheel inside the seat body; A pushing structure, the driving structure is a sliding sleeve on the transmission shaft of the driving structure, a sliding block with a tapered accommodating hole is set on the sliding sleeve, and a sliding sleeve is provided that can be combined with or separated from the actuating wheel. The driving wheel is formed with serrations of a certain width on the surface periphery of the driving wheel, a spring is arranged between the lower section of the slide block and the inner wall of the gun, and a button is arranged below the transmission shaft of the seat body, and the other side of the pivot is worn. One end is installed at the lower end of the slider, and the button is supported on the inner wall of the gun by a torsion spring. The elastic coefficient of the torsion spring is greater than the spring of the support slider. The block can be inserted into the accommodating hole of the slider correspondingly; A push rod. The push rod is installed in the seat body. A series of saw teeth are formed on the surface of the push rod, which can be engaged with the driving wheel. 2. The high-torque electric silicone gun according to claim 1, wherein a handle is formed on the gun body, and a rechargeable battery is inserted in the handle. 3. The high-torque electric silicone gun according to claim 1, wherein an axially extending wedge tooth is formed on one side edge of the driving wheel, and a series of corresponding saw teeth are formed on the periphery of the driving wheel of the pushing structure. 4. The high-torque electric silicone gun according to claim 1, characterized in that, the base body is provided with a micro switch corresponding to the rear end of the gun body, and the rear end of the push rod is provided with a stop block corresponding to the micro switch. 5. The high-torque electric silicone gun according to claim 1, characterized in that there is a dial protruding from the front end of the button, and a micro switch corresponding to the dial is fixed on the bottom surface of the base.

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