CN212702808U - Electric glue squeezing gun - Google Patents

Abstract

The utility model relates to an electric glue squeezing gun in the technical field of electric tools, which comprises a shell and a pushing device; a driving device is arranged in the shell, the pushing device comprises a push rod and a push handle, and the push rod is matched with the driving device; the shell is provided with a safety button, the safety button is electrically connected with the driving device, and after the end face of the push handle opposite to the shell touches the safety button, the push rod moves forwards in a backward mode. The utility model discloses electronic crowded rifle of gluing sets up safety button in the tip of casing through pushing away the terminal surface extrusion safety button of handle, realizes spacing to the thrust unit stroke, and signal transmission is accurate, and the reflection is sensitive.

Description

Electric glue squeezing gun

Technical Field

The utility model relates to an electric tool technical field specifically relates to an electronic crowded rifle of gluing, and is special, relates to an electronic crowded rifle of gluing of safety button touching formula.

Background

The glue extruding gun is widely used in the industries of buildings, interior decoration, electronic appliances, automobiles and automobile parts, ships, containers and the like because of the advantages of simple operation, convenience, rapidness, labor saving and the like, and is a special tool which is commonly used in the process of implementing gluing and sealing processes.

For the electric glue gun, the pushing device is generally driven by a driving motor through a transmission device. The driving motor provides power required by the glue gun, and the transmission device converts the power of the motor into the driving force of the pushing device. In the prior art, when the pushing device travels to the maximum stroke, the limiting is generally achieved in two ways:

one, by hard contact. The push handle of the pushing device is contacted with the shell, the push rod cannot move forwards, so that the power of the motor is increased, and the driving device stops moving forwards and reverses when receiving current exceeding a certain rating value. In this way, the casing or the push handle is easily damaged, especially after the glue gun is used for a long time.

And secondly, passing through a Hall sensor. The end part of the shell is provided with a Hall sensing receiver, the push handle is provided with a Hall sensor, and the stop and reversal of the driving device are realized through the Hall sensing receiver and the push handle. However, the influence of environmental factors behind the Hall sensor is large, and the glue gun is easily damaged due to the problems of weak signals and the like.

In addition, the existing glue gun has the single problems of appearance structure form and function.

The invention discloses a cold material glue extruding gun for filling glue for retreading and repairing tires, which is found by the search of the prior art, wherein the Chinese patent publication No. CN101648432A discloses that the cold material glue extruding gun comprises a driving device, an extruding cylinder is sleeved on the driving device, a glue filling opening is arranged on the extruding cylinder, a glue feeding hole is arranged in the axial direction of the extruding cylinder, an extruding screw rod matched with the glue feeding hole is arranged in the glue feeding hole, and the extruding screw rod is connected with the driving device. Compared with the existing glue extruding gun, the invention not only can remove heating equipment and save the manufacturing cost, but also does not need to adjust the temperature, and eliminates the phenomenon that the glue material is vulcanized because the heating temperature is not accurate and is overhigh. An extrusion screw is arranged between the front section threads of the extrusion screw, or a screw with variable pitch is adopted, so that the fit clearance between the rubber material feeding hole and the extrusion screw is reduced, the extrusion effect on rubber material is improved, and the extruded rubber material reaches the optimal repair temperature. The patent suffers from the problems associated with the above.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims at providing an electronic crowded rifle of gluing.

According to the utility model, the electric glue gun comprises a shell and a pushing device;

a driving device is arranged in the shell, the pushing device comprises a push rod and a push handle, and the push rod is matched with the driving device;

the shell is provided with a safety button, the safety button is electrically connected with the driving device, and after the end face of the push handle opposite to the shell touches the safety button, the push rod moves forwards in a backward mode.

In some embodiments, the safety button is pressed 2 times in succession, and the push rod travels in a cruise mode.

In some embodiments, the housing has a receiving groove, and an end of the push handle can be clamped in the receiving groove.

In some embodiments, a hollow portion is disposed on a side surface of a position where the push handle contacts the safety button.

In some embodiments, the device further comprises an elastic pad, wherein the elastic pad is located between the push handle and the casing.

In some embodiments, the resilient pad is provided with a recess for receiving the safety button.

In some embodiments, the safety button is fixed on a connecting plate, and the connecting plate is a soil-shaped structural plate.

In some embodiments, the two plates of the connecting plate have different structural shapes.

In some embodiments, the housing further mounts an illumination device at an end facing away from the safety button.

In some embodiments, the casing is provided with a speed regulation hole, and the speed regulation hole is circular or rectangular.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses electronic crowded rifle of gluing sets up safety button in the tip of casing through pushing away the terminal surface extrusion safety button of handle, realizes spacing to the thrust unit stroke, and signal transmission is accurate, and the reflection is sensitive.

2. The utility model discloses electronic crowded rifle of gluing pushes away the structure at handle and casing butt joint position through optimizing, improves and pushes away the handle and press the precision of action with the safety button touching.

3. The utility model discloses electronic crowded gluey rifle passes through the cushion and to the optimal design of cushion structure, improves the stroke that moves ahead of push rod, further reduces the colloidal mass of reserving in the rubber tube, and is energy-concerving and environment-protective.

4. The utility model discloses electronic crowded rifle of gluing improves safety button's steadiness through the connection fixed knot who optimizes safety button, improves the work efficiency and the precision of crowded rifle of gluing.

5. The utility model discloses electronic crowded rifle of gluing passes through lighting device's increase for crowded rifle of gluing has the illumination function, further improves the quality of caulking.

6. The utility model discloses electronic crowded rifle of gluing is through the institutional advancement to the corresponding position of casing, makes the utility model provides a crowded rifle of gluing can provide multiple shape speed governing switch, satisfies consumer's user demand.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the explosion structure of the electric glue gun of the present invention;

FIG. 2 is a schematic view of a housing and security button mounting arrangement according to some embodiments;

FIG. 3 is a schematic view of a push handle according to some embodiments;

FIG. 4 is a schematic diagram of a resilient pad in some embodiments;

FIG. 5 is a schematic diagram of a safety button and attachment plate according to some embodiments;

FIG. 6 is a schematic structural view of an electric glue gun with a rectangular-hole structure of a speed-adjusting hole;

1-machine shell, 11-accommodating groove, 110-arc-shaped bulge, 12-speed regulation hole, 2-pushing device, 21-pushing rod, 22-pushing handle, 220-hollow part, 3-safety button, 4-elastic pad, 40-groove, 5-connecting plate and 6-lighting device.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

Example 1

The utility model provides an electronic crowded rifle of gluing, in particular to electronic crowded rifle of gluing of safety button touching formula, including casing 1 and bulldozing device 2. The housing 1 provides a space for accommodating a driving device, and the driving device includes a driving motor, a transmission device, and a corresponding circuit board. The casing 1 is also provided with a switch control key, a battery connecting socket and the like which are matched with the driving device. The casing 1 is also used for butt joint with a hose rack for placing a hose, and the hose rack and the push handle 22 are respectively positioned at two opposite ends of the casing 1. The pushing device 2 includes a push rod 21 and a push handle 22. One end of the push rod 21 is connected with the push handle 22, and may be a ferrule type connection, that is, the push handle 22 is provided with a sleeve structure, and the end of the push rod 21 extends into the sleeve of the push handle 22 to realize the connection. In order to ensure the connection firmness of the push rod 21 and the push handle 22, an internal thread is arranged at the end part of the push rod 21, a through hole is formed in the push handle 22, and the push handle 22 and the push rod 21 are fixed in a threaded manner through a screw after the end part of the push rod 21 extends into a sleeve of the push handle 22. The other end of the push rod 21 is arranged in the rubber tube frame after passing through the machine shell 1. The transmission gear arranged on the push rod 21 is meshed with a transmission gear on a driving device in the machine shell 1, and the push rod 21 is driven to move forwards or move backwards through the driving device. Here, the push rod 21 advances in the direction toward the rack, and retreats in the direction away from the rack.

The shell 1 is provided with a safety button 3, and the safety button 3 is electrically connected with a driving device. The safety button 3 is disposed on an end portion of the casing 1 opposite to the push handle 22, and an end surface of the push handle 22 can touch and press the safety button 3. After the driving device drives the push rod 21 to move forward for a certain distance, the end surface of the push handle 22 is in contact with the end surface of the casing 1, at the moment, the corresponding point on the end surface of the push handle 22 is in contact with the safety button 3, the safety button 3 is touched and extruded, the safety button 3 is enabled to perform one-time switching action, and then a corresponding instruction is sent through a circuit board in the driving device, so that a motor in the driving device is reversed, and the push rod 21 is driven to retreat.

The safety button 3 is arranged at the end part of the shell 1, the safety button 3 is extruded through the end face of the push handle 22, the limit of the stroke of the pushing device is realized, the reaction is sensitive and the action is rapid compared with the mode of setting the maximum current in the prior art, and the problem that the shell is damaged due to the fact that the shell is subjected to too strong pressure from the push handle is solved. In addition, for the spacing to the thrust device stroke that uses hall sensor to realize, signal transmission accuracy can be ensured through the mode of circuit, the erroneous judgement scheduling problem that hall sensor leads to because of external factors influence is eliminated.

As a further preferred solution, the safety button 3 is also provided with a constant speed cruise function. After the glue gun starts working, before the safety button 3 is touched and extruded by the push handle 22, the safety button 3 is continuously pressed by external force for 2 times, at the moment, after a circuit board in the driving device receives a signal transmitted by the safety button 3, the signal is converted into a function instruction of constant-speed cruising to be sent to the motor, and then the push rod 21 is advanced in the constant-speed cruising mode.

Example 2

The embodiment 2 is formed on the basis of the embodiment 1, and the accuracy of the touch pressing action of the push handle and the safety button is improved by optimizing the structure of the butt joint part of the push handle and the shell. Specifically, the method comprises the following steps:

the end face of the casing 1 opposite to the push handle 22 is provided with a receiving groove 11, and the receiving groove 11 is preferably formed by providing a closed arc-shaped protrusion 110 on the end face of the casing 1. The shape of the closed arc-shaped protrusion 110 is the same as the structural shape of the end face of the push handle 22, and the safety button 3 is positioned in the closed arc-shaped protrusion 110. The push rod 21 drives the end face of the push handle 22 to reach the accommodating groove 11 under the action of the driving device, and the end portion of the push handle 22 enters the accommodating groove 11 along the inner side face of the arc-shaped protrusion 110, so that the end face of the push handle 22 is contacted and pressed with the safety button 3, and the maximum stroke of the push rod 21 is limited. Meanwhile, the arc-shaped protrusion 110 can also play a certain protection role for the safety button 3, so that the problems of quality or safety and the like caused by abnormal change of the working state of the electric glue gun due to the fact that the safety button 3 is mistakenly touched and damaged by external force in a non-working state and the safety button 3 is mistakenly touched by the external force in a working state are solved.

Further preferably, a hollow portion 220 is provided at an end portion of the push handle 22 contacting the safety button 3. The position of the hollow-out part 220 is the position adjacent to the end of the push handle 22 and the side of the butt joint part touched by the safety button 3. Preferably, the hollow portions 220 are disposed on the left and right sides of the contact portion between the end of the push handle 22 and the safety button 3. The arrangement of the hollow-out portion 220 not only further improves the contact precision between the push handle 22 and the safety button 3, but also the hollow-out portion 220 can effectively prevent the safety button 3 from being pressed and started due to foreign matters and other reasons on one side or two sides of the butt joint part of the push handle 22 and the safety button 3, or prevent the components such as the casing and the motor from being damaged due to the fact that the button 3 is pressed too late.

Example 3

The embodiment 3 is formed on the basis of the embodiment 1 or the embodiment 2, and the forward stroke of the push rod is improved mainly through the optimized design of the elastic cushion and the structure of the elastic cushion, so that the waste of colloid in the rubber tube is greatly reduced, and the rubber tube is energy-saving and environment-friendly. Specifically, the method comprises the following steps:

an elastic pad 4 is arranged, the elastic pad 4 is attached to the end of the push handle 220, and the elastic pad 4 is located between the end of the casing 1 and the end of the push handle 220. When the push rod 21 moves to the maximum stroke, the elastic pad 4 is pushed by the push handle 22 to contact with the end of the casing 1 and touch and press the safety button 3, so that the driving device drives the push rod 21 to rotate reversely.

Preferably, the elastic pad 4 is an integrally formed rubber block, and the structural shape of the rubber block is matched with that of the push handle 22. The rubber block is provided with a through hole for the push rod 21 to pass through, one end of the rubber block is contacted with the end face of the push handle 22 after the rubber block is installed, and the other end of the rubber block is opposite to the end face of the machine shell 1. The elastic pad 4 may also be a plurality of independent rubber blocks, preferably 3, which are respectively connected to the end surface of the push handle 22 by means of adhesion.

The elastic pad 4 is arranged to make the push rod 21 advance to approach the maximum stroke under the driving of the driving device, at this time, the end surface of the elastic pad 4 contacts with the end surface of the casing 1, and the elastic pad 4 starts to contact with the safety button 3. Because of the elastic action of the elastic pad 4, the safety button 3 is touched but not immediately pressed to the corresponding action position, but the push rod 21 drives the push handle 22 to continue to move forward by a small distance, the safety button 3 extrudes the elastic pad 4 to deform to a certain degree, the reaction force of the elastic pad 4 presses the safety button 3 to the corresponding action position to act, and then the push rod 21 rotates reversely. By utilizing the elastic deformation effect of the elastic pad 4, compared with the direct hard contact between the push handle 22 and the safety button 3, the stroke of the push rod 21 can be further improved, the amount of colloid reserved in the rubber tube is reduced, and the rubber tube is energy-saving and environment-friendly.

Further preferably, the elastic pad 4 is provided with a groove 40, the groove 40 is used for accommodating the safety button 3, and when the elastic pad 4 travels with the push rod for a certain travel, the bottom of the groove 40 touches the safety button 3. The provision of the groove 40 allows the stroke amount of the push rod 21 to be increased by the sum of the depth of the groove 40 and the elastic deformation amount of the elastic pad 4. Preferably, the depth of the recess 40 is equal to or greater than the length of the safety button 3, particularly preferably greater than the length of the safety button 3. Here, the length of the safety button 3 refers to a length of the safety button 3 located outside the cabinet 1. When the depth of recess 40 is greater than the length of safety button 3, before the bottom of recess 4 touches safety button 3, cushion 4 is by extrusion deformation, the further stroke volume of advancing of increase push rod 21, and the colloid volume of still further reducing to remain in the hose is energy-concerving and environment-protective.

Example 4

This embodiment 4 is formed on the basis of any one of embodiments 1 to 3, and improves the stability of the safety button by optimizing the connection and fixation structure of the safety button. Specifically, the method comprises the following steps:

the safety button 3 is fixed on the connecting plate 5, and the connecting plate 5 is fixed on the machine shell 1. The connecting plate 5 is a soil-shaped structural plate, the connecting plate 5 is connected into a soil-shaped structure by connecting two plates with different sizes, and the connecting mode can be a screw joint and can also be realized by bonding and the like. The safety button 3 is fixedly connected to the connecting plate 5 by means of pasting or the like. The casing 1 is provided with a clamping groove matched with the connecting plate 5 in structure, and the connecting plate 5 in the soil-shaped structure is clamped in the clamping groove. Due to the fact that the two plates are different in size, the connecting plate 5 can form double limiting effects in the up, down, left and right directions. The double-limiting effect of each connecting direction of the connecting plate 5 and the clamping groove can effectively guarantee the stability of the connecting plate 5, and even when a certain contact surface on one of the plates is enlarged due to the fact that the gap is enlarged due to abrasion and the like, the contact surface of the other plate in the same direction basically cannot simultaneously have the problem that the gap is enlarged, and therefore the stability of the connecting plate 5 can be guaranteed.

Furthermore, the connecting plates 5 of the soil-shaped structures have different sizes and different structural shapes. The two plates of the connecting plate 5 can be arbitrarily combined by selecting two different shapes from rectangular, trapezoidal, circular, triangular and polygonal shapes with the number of sides greater than 4. The combination mode is preferably as follows: rectangular plate and circular plate, trapezoidal plate and circular plate, circular plate and triangular plate, rectangular plate and triangular plate and trapezoidal plate and triangular plate, etc. The connecting plate 5 formed by two plates with different shapes is connected in a clamping groove formed in the machine shell 1 in an adaptive mode, and when the connecting plate 5 receives force in a certain direction, the force can be decomposed to different positions due to the different shapes of the two plates. Through the dispersion of power, further improve the stability after 5 installations of connecting plate, ensure safety button 3's firm, improve the work efficiency and the precision of crowded gluey rifle.

Example 5

The embodiment 5 is formed on the basis of any one of the embodiments 1 to 4, and the use function of the electric glue gun is improved by adding a functional device, specifically, by adding an illuminating device, so that the electric glue gun has an illuminating function, and the caulking quality is further improved. Specifically, the method comprises the following steps:

the lighting device 6 is mounted on the housing 1, and the lighting device 6 and the safety button 3 are respectively located at two opposite ends of the housing 1. The lighting device 6 comprises an LED lamp, a corresponding containing hole is formed in the end portion of the machine shell 1, and the LED lamp is installed in the containing hole in the machine shell 1 and then is electrically connected with the circuit board. The lighting device 6 is positioned below the hose rack. When the glue gun starts to glue, the LED lamp can provide corresponding illumination, so that the glue nozzle of the rubber tube can be aligned to a gap to be filled, and the filling quality is improved. In addition, the lighting device 6 can also provide lighting when the work is carried out in a light-shaded area, so that the operation safety factor of an operator is increased.

Example 6

This embodiment 6 forms on the basis of any embodiment of embodiment 1-5, through the institutional advancement to the casing corresponding part, specifically is the institutional advancement of speed governing switch department, makes the utility model discloses an electronic crowded rifle of gluing can provide multiple shape speed governing switch, satisfies consumer's user demand. Specifically, the method comprises the following steps:

the casing 1 is provided with a speed regulation hole 12, and the speed regulation hole 12 is used for installing a speed regulation switch. The speed regulation hole 12 can be a circular hole or a rectangular hole according to the structural shape of the speed regulation switch. When the speed regulation hole 12 is a circular hole, the speed regulation switch can be cylindrical or frustum-shaped, and at the moment, the speed regulation switch is knob-type. When the speed regulation hole 12 is a rectangular hole, the speed regulation switch is in a disc shape, and at the moment, the speed regulation switch is in a dial plate shape. Two kinds of different speed governing holes have increased the outward appearance configuration of crowded rifle of gluing, satisfy the user demand that the consumer is different.

To sum up, the electric glue squeezing gun of the utility model realizes the limit of the stroke of the pushing device by arranging the safety button at the end part of the shell and extruding the safety button through the end surface of the pushing handle, and has accurate signal transmission and sensitive reflection; the electric glue squeezing gun improves the accuracy of the touch pressing action of the push handle and the safety button by optimizing the structure of the butt joint part of the push handle and the shell; the electric glue squeezing gun of the utility model improves the maximum stroke of the push rod through the arrangement of the elastic cushion, reduces the waste of glue in the glue tube to the maximum extent, and is energy-saving and environment-friendly; the utility model improves the stability of the safety button and the working efficiency and precision of the glue squeezing gun by optimizing the connection and fixation structure of the safety button; the electric glue squeezing gun of the utility model has the advantages that the glue squeezing gun has the lighting function through the addition of the lighting device, and the joint filling quality is further improved; the utility model discloses electronic crowded rifle of gluing is through the institutional advancement to the corresponding position of casing, makes the utility model provides a crowded rifle of gluing can provide multiple shape speed governing switch, satisfies consumer's user demand.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. An electric glue gun is characterized by comprising a machine shell (1) and a pushing device (2);

a driving device is arranged in the shell (1), the pushing device (2) comprises a push rod (21) and a push handle (22), and the push rod (21) is matched with the driving device;

safety button (3) are installed to casing (1), safety button (3) with drive arrangement electricity is connected, push handle (22) with casing (1) relative terminal surface touching behind safety button (3), push rod (21) advance with the mode that reverses.

2. The electric glue gun according to claim 1, characterized in that said safety button (3) is pressed 2 times in succession, said push rod (21) advancing in a constant speed cruise.

3. The electric glue gun according to claim 1, wherein the housing (1) is provided with a receiving groove (11), and an end of the push handle (22) is capable of being clamped in the receiving groove (11).

4. The electric glue gun according to claim 3, characterized in that a hollow part (220) is arranged on the side of the contact position of the push handle (22) and the safety button (3).

5. The electric glue gun according to claim 1, further comprising an elastic pad (4), wherein the elastic pad (4) is located between the push handle (22) and the case (1).

6. The electric glue gun according to claim 5, characterized in that said elastic pad (4) is provided with a groove (41), said groove (41) being intended to receive and touch said safety button (3).

7. The electric glue gun according to claim 1, characterized in that the safety button (3) is fixed on a connecting plate (5), the connecting plate (5) being a structural plate in the shape of a letter "tu".

8. The electric glue gun according to claim 7, characterized in that the two plates of the connection plate (5) have different structural shapes.

9. The electric glue gun according to any one of claims 1-8, characterized in that the housing (1) is further provided with an illumination device (6), the illumination device (6) being located at an end facing away from the safety button (3).

10. The electric glue gun according to claim 1, characterized in that a speed adjusting hole (12) is provided on the case (1), and the speed adjusting hole (12) is circular or rectangular.

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