Glue gun speed adjusting mechanism

Abstract

The utility model discloses a glue gun speed adjusting mechanism which comprises a glue gun internally provided with an area for placing the speed adjusting mechanism. According to the technical scheme, the elastic piece is arranged between the rotary knob and the switch for controlling the speed of the glue gun, meanwhile, the protrusion and the groove are arranged on the rotary knob, the protrusion and the groove on the rotary knob are matched with the protrusion and the groove on the glue gun shell, and rotation of the rotary knob is limited. When the knob is pressed, the elastic body is compressed, the protrusion and the groove on the knob are separated from the protrusion and the groove on the shell, limiting is relieved, and the knob is rotated for speed regulation.

Description

Technical Field

[0001] This application belongs to the field of speed control structures for lithium battery glue guns, and specifically relates to a glue gun speed adjustment mechanism. Background Art

[0002] This technical solution is an optimization of the technology based on the patent No. 2021203253483, with the utility model name being an electric sealant gun equipped with a Hall sensor.

[0003] Lithium battery glue guns are widely used due to their high glue application efficiency and uniform glue output. The glue application speed is adjustable. Currently, the glue application speed is mainly adjusted by a speed control knob. However, during use, since the speed control knob is exposed outside the housing, when applying glue, the hand or tool can easily touch the speed control knob and cause it to rotate. After the speed control knob rotates, it cannot be locked and limited, thereby affecting the stability of glue output. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a glue gun speed adjustment mechanism that can solve the problem in the related art that the existing glue gun speed control knob has no locking and limiting.

[0005] The embodiments of this application provide a glue gun speed adjustment mechanism, including: a glue gun, in which there is an area for placing the speed adjustment mechanism; a speed adjustment mechanism, which is a knob, an elastic body, and a switch; there is a housing on the glue gun, and there is a hole on the housing for the knob to pass through; corresponding protrusions and grooves are staggeredly arranged on the housing and the knob, and the protrusions and grooves are in cross contact under the action of the elastic body. The protrusions and grooves are circumferentially distributed in a ring on the edge of the hole on the housing and the edge of the knob, and the arcs of the protrusions and grooves are equal.

[0006] Preferably, the knob can move along the direction of the rotating rod on the switch, and when the knob moves along the direction of the rotating rod on the switch, the rotating rod and the knob do not separate.

[0007] Preferably, the elastic bodies are distributed around the rotating rod on the switch, and one end of the elastic body contacts the switch and the other end contacts the knob.

[0008] Preferably, the protrusions and grooves are coated with grease. The number of protrusions and grooves is at least six respectively.

[0009] This technical solution mainly sets an elastic member between the knob and the switch for controlling the glue gun speed. At the same time, there are protrusions and grooves on the knob, and the protrusions and grooves on the knob cooperate with the protrusions and grooves on the glue gun housing to limit the rotation of the knob. When the knob is pressed, the elastic body is compressed, and the protrusions and grooves on the knob disengage from the protrusions and grooves on the housing, and the limit is released, and the knob is rotated to adjust the speed. Description of the Drawings

[0010] Figure 1 is a schematic diagram of the overall structure of a glue gun speed adjustment mechanism disclosed in an embodiment of the present application;

[0011] Figure 2 is Figure 1 a schematic diagram of the overall internal structure of a glue gun speed adjustment mechanism;

[0012] Figure 3 is an axonometric schematic diagram of the speed adjustment mechanism;

[0013] Figure 4 is a schematic diagram of the overall structure of the speed adjustment mechanism;

[0014] Figure 5 is a view of the internal structure of the housing;

[0015] Figure 6 is Figure 5 a schematic diagram of the structure of the hole on the housing in which the knob passes in;

[0016] Figure 7 is a schematic diagram of the relationship structure between the speed adjustment mechanism and the housing;

[0017] Explanation of reference numerals:

[0018] 1 - handle; 2 - housing; 21 - hole; 22 - housing groove; 23 - housing protrusion; 3 - push rod handle; 4 - hose holder; 5 - motor; 6 - reducer; 7 - transmission structure; 8 - gear; 9 - knob; 91 - knob side; 92 - knob groove; 93 - knob protrusion; 10 - elastic body; 11 - rotating rod; 12 - switch. Detailed implementation manners

[0019] Embodiment

[0020] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0021] Next, a glue gun speed adjustment mechanism provided by the embodiments of the present application will be described in detail in conjunction with the accompanying drawings, through specific embodiments and their application scenarios.

[0022] Referring to Figures 1-7 , a glue gun speed adjustment mechanism provided by the embodiments of the present application may include:

[0023] There is an area in the glue gun for placing the speed adjustment mechanism; there is also a motor 5 in the glue gun. The motor 5 outputs power through a reducer 6, and drives the push rod handle 3 to move through a transmission structure 7 and a gear 8, so that the glue in the hose holder 4 is extruded.

[0024] The speed adjustment mechanism is an assembly composed of a knob 9, an elastomer 10, a switch 12 and a housing 2; as Figures 3-7 shown,

[0025] The glue gun is provided with a housing 2, and the housing is provided with a hole 21 for the knob to pass through; the housing 2 is provided with a hole 21, a housing groove 22 and a housing protrusion 23; the knob 9 is provided with a knob side 91, a knob groove 92 and a knob protrusion 93; the housing groove 22 and the housing protrusion 23 are staggered corresponding to the knob protrusion 93 and the knob groove 92, as Figure 7 shown, the housing groove 22 and the knob protrusion 93 are in cross contact under the action of the elastomer 10, and the housing protrusion 23 and the knob groove 92 are in cross contact under the action of the elastomer 10.

[0026] The housing groove 22 and the housing protrusion 23 are circumferentially distributed on the edge of the hole 21 on the housing 2; the knob protrusion 93 and the knob groove 92 are circumferentially distributed on the edge of the knob, and the housing groove 22 and the knob protrusion 93 have equal radians; the housing protrusion 23 and the knob groove 92 have equal radians. Lubricating grease is provided on the housing groove 22, the knob protrusion 93, the housing protrusion 23 and the knob groove 92.

[0027] The knob 9 can move along the direction of the rotating rod 11 on the switch 12. During the movement, the housing groove 22 and the knob protrusion 93 are disengaged or engaged. However, when the knob 9 moves along the direction of the rotating rod 11 on the switch 12, the rotating rod 11 and the knob 9 are not disengaged. The knob 9 is provided with an arc-shaped hole matching the rotating rod 11, which is convenient for the knob 9 to drive the rotating rod 11 to rotate.

[0028] The elastomer 10 is distributed around the rotating rod 11 on the switch 12, as Figure 3 and Figure 4 shown. One end of the elastomer 10 contacts the switch 12, and the other end contacts the knob 9, so that the knob 9 tends to move away from the switch 12. There is a housing 2 outside the switch 12, the switch 12 is fixed inside the housing 2, and the knob 9 is movable. The knob 9 tends to be close to and fit the housing 2, and then the housing groove 22 contacts the knob protrusion 93, and the housing protrusion 23 contacts the knob groove 92, playing a role of limiting and locking. When it is necessary to adjust the knob 9 to control the motor speed and then control the glue gun speed. It is necessary to press the knob 9, so that the elastomer 10 is compressed, the housing groove 22 and the knob protrusion 93 are disengaged, and the knob 9 can be rotated. After adjusting the glue gun speed, release the knob 9, and the knob 9 approaches the housing 2 under the action of the elastomer 10, and the housing groove 22 and the knob protrusion 93 are engaged for limiting and locking.

[0029] The common glue gun speed is adjusted in six gears; since the adjustment of the glue gun speed is non-linear and has gears, the arrangement of the housing groove 22 and the knob protrusion 93 should match the gears of the glue gun speed adjustment. The numbers of the housing groove 22 and the knob protrusion 93 are at least six or multiples of six respectively, and the numbers of the housing groove 22 and the knob protrusion 93 are equal. The numbers of the housing protrusion 23 and the knob groove 92 are at least six or multiples of six respectively, and the numbers of the housing protrusion 23 and the knob groove 92 are equal.

[0030] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A glue gun speed adjustment mechanism, characterized in that, include: A glue gun, wherein the glue gun is provided with an area for placing a speed adjustment mechanism; A speed adjustment mechanism, which includes a knob, an elastic body and a switch; The glue gun is provided with a shell, and the shell is provided with a hole for accommodating the knob to pass through; the shell and the knob are provided with protrusions and grooves which correspond to each other and are staggered, and the protrusions and grooves are in cross contact with each other under the action of the elastic body.

2. The speed adjustment mechanism of a glue gun according to claim 1, characterized in that, The protrusions and the grooves are distributed in an annular circumferential direction on the edge of the hole on the shell and the edge of the knob, and the protrusions and the grooves have the same curvature.

3. The speed adjustment mechanism of a glue gun according to claim 1, characterized in that The knob can move along the direction of the rotating rod on the switch, and when the knob moves along the direction of the rotating rod on the switch, the rotating rod and the knob do not separate.

4. The speed adjustment mechanism of a glue gun according to claim 1, characterized in that The elastic body is distributed around the rotating rod on the switch, and one end of the elastic body contacts the switch, and the other end contacts the knob.

5. The speed adjustment mechanism of a glue gun according to claim 2, wherein The protrusions and the grooves are coated with grease.

6. The speed adjustment mechanism of a glue gun according to claim 1, characterized in that, The number of the protrusions and the number of the grooves are at least six respectively.

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