阅读说明：本技术 一种胶枪 (Glue gun ) 是由 李跃明 于 2019-01-04 设计创作，主要内容包括：本发明公开一种胶枪,包括活动手柄和固定手柄,活动手柄通过枢转销轴与固定手柄相连；活动手柄上还设置有致动件,致动件具有与推件相配合的致动部；枢转销轴和致动部的间距大小被设置为可在二个或多个档位之间切换,从而改变致动件施加在推件之上的力的大小。本发明的档位可调实现在快速进给和大力进给之间的转换,让使用者根据实际需要进行调节。(The invention discloses a glue gun, which comprises a movable handle and a fixed handle, wherein the movable handle is connected with the fixed handle through a pivoting pin shaft; the movable handle is also provided with an actuating piece, and the actuating piece is provided with an actuating part matched with the pushing piece; the spacing between the pivot pin and the actuator portion is sized to shift between two or more shift positions to vary the amount of force exerted by the actuator member on the pusher member. The gear of the invention can be adjusted to realize the conversion between quick feed and large force feed, so that a user can adjust the gear according to actual requirements.)

1. A glue gun is characterized in that a glue gun body is provided with a glue gun body,

the movable handle is connected with the fixed handle through a pivoting pin shaft;

the movable handle is also provided with an actuating piece, and the actuating piece is provided with an actuating part matched with the pushing piece;

the spacing between the pivot pin and the actuator portion is sized to shift between two or more shift positions to vary the amount of force exerted by the actuator member on the pusher member.

2. The glue gun of claim 1, wherein the movable handle is provided with a slide slot, the slide slot being provided with the two or more gears; the pivot pin shaft is arranged to slide in the sliding groove to switch between the gears.

3. The glue gun of claim 1, wherein the stationary handle has a slide slot with the two or more gears; the pivot pin shaft is arranged to slide in the sliding groove to switch between the gears.

4. The glue gun of claim 2 or 3, wherein an elastic member is further disposed between the movable handle and the fixed handle; the elastic component is arranged to generate pre-tightening force on the movable handle so as to enable the pivot pin shaft to be kept in one of the gear positions.

5. The glue gun of claim 2 or 3, wherein the pivot pin is a stepped pin having a pressing end on which an elastic member is sleeved, the stepped pin having a first axial portion and a second axial portion, the first axial portion having an axial diameter greater than the width of the chute, the second axial portion having an axial diameter less than the width of the chute, the stepped pin being configured to: under the biasing action of the elastic component, the first shaft diameter portion is located in the gear, when the pressing end is pressed down, the step pin shaft axially moves to enable the second shaft diameter portion to enter the gear, and when the pressing end is loosened, the step pin shaft axially moves oppositely under the restoring force action of the elastic component to enable the first shaft diameter portion to reenter the gear.

6. The glue gun of claim 5, wherein the chute is an arc-shaped slot or a linear slot.

7. The glue gun of claim 1, wherein the movable handle is provided with a slide slot, the slide slot being provided with the two or more gears; the actuating portion is configured to slide within the slide slot to shift between the gear positions.

8. The glue gun of claim 7, wherein the actuator further comprises a pivot, the actuator portion on the actuator being configured to slide in the chute about the pivot.

9. The glue gun of any one of claims 1, 2, 3, or 7, wherein the braking member is sleeved on the push rod, one end of the braking member is engaged with the limiting groove of the main body, and one end of the braking member is movable between a first limiting end and a second limiting end of the limiting groove, so that the push rod has a certain distance of idle travel from the first limiting end to the second limiting end during pushing.

10. The glue gun of claim 9, wherein the idle stroke is 3-5 mm.

Technical Field

The invention relates to the field of hardware equipment, in particular to a glue gun, and belongs to the technical field of tools for production, processing, manufacturing and building industries.

Background

When the glue gun is used, the glue gun is pushed by the gun type handle lever to continuously extrude the glue in a reciprocating manner, so that the glue is discharged. The one end of gluing the rifle is provided with and is fit for the handheld trigger mechanism who presses of user, presses trigger mechanism through the user hand, can drive the colloid of placing in gluing the rifle through the mechanical structure who glues the rifle for glue the bucket and go out to glue at a gluey mouthful. A glue gun can be adapted to a plurality of glues with different characteristics, and the mobility of different glues is different. The common glue gun only has a fixed extruding mechanism, so that the uniform glue discharging in the glue applying process is very difficult. In a particular gun application scenario, different glue dispensing speeds are also required because the size of the glue application range varies. The common glue gun only has a fixed extruding mechanism, and the glue discharging speed of the glue barrel can be controlled only by the pressing speed of a user through hands. In practice, especially when the user applies a large force to the handle, it is extremely difficult to control the pressing speed of the hand while applying the force. In the process of starting to use the glue gun, the glue gun is usually driven by large force when the glue gun is started to use due to the problems of long-term unused, solidification of partial glue, static viscosity of the glue and the like, and after the glue is stably discharged, the driving force required by the glue gun is obviously reduced, and the problems cannot be solved by a fixed extruding mechanism of a common glue gun. And often can appear in order to go out to glue when using gluey rifle and press hard, inconvenient control extrusion speed, it is excessive again to push after the colloid is extruded, causes the extravagant problem of colloid.

Therefore, those skilled in the art have endeavored to develop a glue gun with adjustable gears to switch between fast feed and powerful feed, so that the user can adjust the gun according to actual needs.

Disclosure of Invention

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to realize the gear adjustment of the glue gun.

In order to achieve the purpose, the invention provides a glue gun, which comprises a movable handle and a fixed handle, wherein the movable handle is connected with the fixed handle through a pivoting pin shaft; the movable handle is also provided with an actuating piece, and the actuating piece is provided with an actuating part matched with the pushing piece; the spacing between the pivot pin and the actuator portion is sized to shift between two or more shift positions to vary the amount of force exerted by the actuator member on the pusher member.

Furthermore, a sliding groove is arranged on the movable handle, and the sliding groove is provided with two or more gears; the pivot pin is configured to slide within the slide slot to shift between the gear positions.

Furthermore, a sliding groove is arranged on the fixed handle, and the sliding groove is provided with two or more gears; the pivot pin is configured to slide within the slide slot to shift between the gear positions.

Furthermore, an elastic part is arranged between the movable handle and the fixed handle; the elastic component is arranged to generate pre-tightening force on the movable handle so as to enable the pivot pin shaft to be kept in one of the gear positions.

Further, pivot round pin axle is step round pin axle, and step round pin axle has the end of pressing, presses to serve the cover and is equipped with elastic component, and step round pin axle has first diameter of axle portion and second diameter of axle portion, and the diameter of axle of first diameter of axle portion is greater than the width of spout, and the diameter of axle of second diameter of axle portion is less than the width of spout, and step round pin axle is set up to: under the biasing action of the elastic component, the first shaft diameter portion is located in the gear, when the pressing end is pressed down, the step pin shaft moves axially, so that the second shaft diameter portion enters the gear, and when the pressing end is released, the step pin shaft moves axially in a reverse mode under the action of restoring force of the elastic component, so that the first shaft diameter portion enters the gear again.

Further, the sliding groove is an arc-shaped groove or a linear-shaped groove.

Furthermore, a sliding groove is arranged on the movable handle, and the sliding groove is provided with two or more gears; the actuating portion is configured to slide within the slide slot to shift between the gear positions.

Further, the actuating member further comprises a pivot, and the actuating portion of the actuating member is configured to slide in the slide slot about the pivot.

Furthermore, the braking part is sleeved on the push rod, one end of the braking part is matched with the limiting groove of the main body, and one end of the braking part moves between the first limiting end and the second limiting end of the limiting groove, so that the push rod has an idle stroke with a distance from the first limiting end to the second limiting end in the pushing process.

Further, the idle stroke is 3-5 mm.

Compared with the prior art, the invention has the beneficial effects that: 1) when the pivot pin shaft is close to the actuating part, the force of the actuating part acting on the pushing piece is increased, and the hinge pin is suitable for colloid with poor flowability; when the pivot pin shaft is far away from the actuating part, the force of the actuating part acting on the pushing piece is reduced, and the hinge pin is suitable for colloid with good fluidity; 2) the elastic component is arranged between the movable handle and the fixed handle, so that when the movable handle is applied with holding force, the pivoting pin shaft can automatically jump to other gears to play a role in fixing the gears; 3) multi-gear shifting can be easily realized by pressing the step pin shaft under the biasing action of the elastic component; 4) the gear is adjustable, so that the conversion between rapid feeding and powerful feeding is realized, and a user can adjust the gear according to actual requirements; 5) the setting of idle stroke makes the colloid internal stress in the gluey bucket obtain the release, prevents that the colloid from going out the mouth of gluing and flowing.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic view of a glue gun according to a preferred embodiment of the present invention;

FIG. 2 is a partially exploded view of the glue gun of FIG. 1;

FIG. 3 is a schematic view of the first gear of FIG. 1;

FIG. 4 is a second gear intent of FIG. 1;

FIG. 5 is a schematic view of a glue gun according to another preferred embodiment of the present invention;

FIG. 6 is a partially exploded view of the glue gun of FIG. 5;

FIG. 7 is a cross-sectional view taken in the direction A-A of the glue gun of FIG. 5;

FIG. 8 is a schematic view of a glue gun according to another preferred embodiment of the present invention;

FIG. 9 is a schematic view of a portion of the structure of FIG. 8;

FIG. 10 is a cross-sectional view of the actuator of FIG. 8;

fig. 11 is a schematic view of a glue gun in accordance with another preferred embodiment of the present invention.

Detailed Description

The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

Fig. 1-4 illustrate a preferred embodiment of the present invention, which, as shown in fig. 1 and 2, includes a pushing device, a body 3, and a trigger device. One end of the body 3 forms an accommodating portion 1, and the accommodating portion 1 is provided in a cylindrical shape to accommodate the cartridge. The other end of the body 3 is hinged or integrally formed with a trigger device by a fastener to form a fixed handle 16 in the form of a gun.

The pushing device comprises a pushing piece 8, a pushing rod 2 and a pushing body 10. The first end of the push rod 2 is arranged in the accommodating part 1, and the pushing body 10 is fixed at the end part of the first end of the push rod 2 and can reciprocate along with the push rod 2. The second end of the push rod 2 is sleeved with a push piece 8, and a return spring 7 is arranged between the push piece 8 and the main body 3. The pushing piece 8 is pushed by the trigger device, so that the push rod 2 moves towards the pushing body 10, and the return spring 7 returns the push rod 8. The push rod 2 is also provided with a brake 4, and a pressure spring 9 is arranged between the brake 4 and the main body 3. The braking piece 4 is driven by the compression spring 9 to block the push rod 2, so that the push rod 2 can only move towards the pushing body 10. When it is desired to install the glue cartridge, pressing the brake 4 releases the push rod 2 so as to adjust the position of the push rod 2. The braking part 4 is matched with the limiting groove of the main body 3, and one end of the braking part 4 moves between the first limiting end and the second limiting end of the limiting groove. When glue is supplied, the braking part 4 moves from the second limiting end to the first limiting end, at the moment, the push rod 2 pushes a section of idle stroke to the glue barrel, the idle stroke is the distance between the first limiting end and the second limiting end, and preferably, the distance of the idle stroke is 3-5 mm. When giving the gluey end, movable handle 5 releases the back, and arresting member 4 can follow first spacing end to the spacing end motion of second to release movable handle 5 and give the power of push rod 2, make the colloid internal stress in the gluey bucket obtain releasing, prevent that the colloid from going out the mouth of gluing and flow.

The trigger device comprises a movable handle 5 and a fixed handle 16. The movable handle 5 is connected to the fixed handle 16 by a pivot pin 12. The movable handle 5 is also provided with an actuating piece 11, and the actuating piece 11 passes through a hole 14 on the movable handle 5 to be in contact with the pushing piece 8. The movable handle 5 is provided with a sliding chute 13, and the sliding chute 13 is of an arc structure and is provided with two gears. The pivot pin 12 is slidable in the slide groove 13. A tension spring 6 is arranged between the movable handle 5 and the fixed handle 16, and the tension spring 6 generates pre-tightening force on the movable handle 5 so as to keep the pivot pin 12 in one of the gears. The movable handle 5 is applied with a gripping force, and the pivot pin 11 pushes the push member 8 to move the push rod 2. When the force is removed, the brake 4 locks the push rod 2, and the push piece 8 is slidingly reset to the initial position relative to the main body 3 under the action of the reset spring 7, so that the next cycle can be carried out.

FIGS. 3 and 4 illustrate the change in the spacing of the pivot pin 12 from the actuator 11 between the different shift positions, when the pivot pin 12 is in the first shift position, the spacing between the pivot pin 12 and the actuator 11 is L1, and the vertical spacing between the pivot pin 12 and the applied force on the movable handle 5 is L3. when the pivot pin 12 is in the second shift position, the spacing between the pivot pin 12 and the actuator 11 is L2, and the vertical spacing between the pivot pin 12 and the applied force on the movable handle 5 is L4, L1 > L3, L2 < L4. when in the first shift position, the same applied force on the movable handle 5 results in a smaller pushing force than in the second shift position, and the pushing stroke is greater than in the second shift position, and when the movable handle 5 is pulled outwardly, the tension spring 6 is pulled outwardly to lengthen, and the pivot pin 12 shifts gears within the slide slot 13 to accommodate fluids of different flow rates.

In other embodiments, the fixed handle 5 is provided with a sliding slot, and the sliding slot is provided with two or more gears. The pivot pin 12 is arranged to slide in a slide slot to shift between gear positions.

In other embodiments, as shown in fig. 5-7, the tension spring 6 between the movable handle 5 and the fixed handle 16 is removed. The pivot pin 12 is provided as a stepped pin 102, the stepped pin 102 having a pressing end and a fixing end with the screw 101. The pressing end is sleeved with a spring 104 and a gasket 105. The stepped pin shaft 102 has a first axial portion and a second axial portion. The first axial diameter portion has an axial diameter larger than the width of the chute 103, and the second axial diameter portion has an axial diameter smaller than the width of the chute 103. Under the biasing action of the spring 104, the first axial portion is located in the shift position, and when the pressing end is pressed, the stepped pin shaft moves axially, so that the second axial portion enters the shift position, and at the same time, the second shift position is shifted in the slide groove 103. When the pressing end is released, the stepped pin shaft is axially moved in opposition by the restoring force of the elastic member, so that the first shaft portion reenters the shift position. Preferably, as shown in fig. 11, the sliding slot 301 is linear and has a plurality of shift positions, and the stepped pin 302 slides in the sliding slot 301 to shift the shift positions.

Fig. 8-10 illustrate another preferred embodiment of the present invention. The movable handle 5 is hinged to the fixed handle 16 by a pivot pin 201. The movable handle 5 is also provided with a chute 202. The actuator further comprises a pivot 204 and an actuating portion 206 in contact with the pusher 8. The actuating portion 206 is arranged to slide in the slide groove 202 about the pivot 204. The toggle member 203 is connected with the pivot 204 and the actuating portion 206, and the actuating portion 206 slides between two ends of the sliding groove 202 through the toggle member 203, that is, the contact position of the pin 206 and the pushing member 8 is changed, so that multiple gears are realized.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.