Glue dispensing gun

Abstract

The utility model relates to the technical field of construction tools, in particular to a glue dispensing gun which comprises a holding handle, a gun body is connected to the front end of the upper portion of the holding handle, a trigger is hinged to the connecting position of the holding handle and the gun body, a glue rod is arranged on the inner side of the gun body in a limiting sliding and penetrating mode, and the end, located in the holding handle, of the trigger is in transmission connection with the glue rod. A trigger adjusting button is arranged at the position, connected with the trigger, of the holding handle, and the trigger adjusting button is in transmission connection with the trigger; the trigger adjusting button is additionally arranged at the position where the trigger of the dispensing gun is connected with the holding handle, the angle between the trigger and the holding handle can be adjusted by rotating the trigger adjusting button, the pulling distance of the trigger can be changed, the pushing distance of the trigger to the glue rod can be controlled, the glue outlet amount of the dispensing gun can be changed, the glue outlet amount can be accurately controlled, the operation is more labor-saving, and the working efficiency is improved. And the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of construction tools, in particular to a dispensing gun. Background Art

[0002] In the production process of electronic devices, furniture making, and handicraft products, the production materials are processed into specified sizes, and the whole piece is completed through coordinated assembly. When assembled, there are mortise and tenon structures, screw drilling fixing structures, and glue bonding structures. When using glue for bonding, glue is generally brushed on the bonding area or dripped on, and the equipment used for dripping glue generally uses a dispensing gun.

[0003] A glue dispensing gun is a tool that precisely controls the application of glue. It can release glue by manually pulling the trigger. Traditional glue dispensing guns are used to push the glue rod to move and extrude the glue by pulling the trigger. However, traditional glue dispensing guns cannot adjust the amount of glue discharged and require manual control of the trigger, which is more laborious and difficult to accurately control the glue discharge.

[0004] Therefore, it is necessary to provide a dispensing gun to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a glue dispensing gun, which adds a trigger adjustment knob at the position where the trigger is connected to the grip handle, for adjusting the trigger pulling angle, so that the glue dispensing gun can rotate the trigger adjustment knob according to usage needs to control the trigger pulling angle, thereby achieving precise control of the glue output.

[0006] The dispensing gun provided by the utility model includes:

[0007] It includes a gripping handle, the upper front end of the gripping handle is connected to the gun body, a trigger is hinged at the connection between the gripping handle and the gun body, a rubber rod is passed through the inner side of the gun body for limited sliding, one end of the trigger is located inside the gripping handle and is transmission connected to the rubber rod, a trigger adjustment knob is provided at the position where the gripping handle is connected to the trigger, and the trigger adjustment knob is transmission connected to the trigger.

[0008] Preferably, the rubber rod is provided with an end head at the end of the gun body, and the outer wall of the end head is limitedly engaged and connected with an end block piece, and the other end of the rubber rod away from the end block piece is sleeved with a contraction spring, one end of the contraction spring is in contact with the outer wall of the gripping handle, and the other end of the contraction spring is fixed to the end of the rubber rod. The design of the end head of the rubber rod can facilitate the installation of the end block piece, and the installation of the end block piece can increase the pushing area of ​​the glue in the rubber hose in the gun body, thereby ensuring the pushing amount of glue. The contraction spring at the tail end of the rubber rod can prevent the rubber rod from continuing to move forward after the rubber rod is pushed to the extreme, and allow the rubber rod to contract to the best position for quick next use.

[0009] Preferably, a transmission tooth is fixed on the top of the trigger located inside the gripping handle, and the transmission tooth is engaged with the rubber rod for transmission. A reset spring is fitted on the position where the trigger is hinged to the gripping handle, and the two ends of the reset spring are respectively engaged with the inner side of the trigger and the inner side of the gripping handle. The transmission tooth on the top of the trigger can complete the transmission between the trigger and the rubber rod, and the reset spring can automatically reset the trigger after the trigger is pulled.

[0010] Preferably, the end of the return spring connected to the holding handle is provided with a handle support end, and the handle support end is fit and clamped on the inner side of the holding handle. The design of the return spring support end increases the length of the end of the return spring and reduces the pressure of the return spring on the holding handle, making the return spring more stable in repeated operations.

[0011] Preferably, a trigger transmission piece is fitted at the position where the rubber rod is connected to the transmission tooth, and the transmission tooth is limitedly engaged with the trigger transmission piece. The design of the trigger transmission piece enables the rubber rod and the transmission tooth to form a transmission, which can complete the transmission between the trigger and the rubber rod. At the same time, the spring at the front end of the trigger transmission piece can push the trigger transmission piece to the transmission position with the transmission tooth after the trigger transmission piece pushes the rubber rod, so that the transmission tooth can repeatedly cooperate with the trigger transmission piece, thereby completing the continuous driving of the rubber rod.

[0012] Preferably, a pull hook is fixed to the tail end of the glue rod, and a fixing port is provided at the position where the pull hook is connected to the glue rod. The end of the contraction spring facing away from the gripping handle abuts against the outer surface of the pull hook. The setting of the pull hook can quickly pull the glue rod to the tail end of the gun body through the pull hook when the glue rod is driven to the front end of the gun body by the trigger to replace the glue inside the gun body, thereby facilitating the use of the glue gun. The fixing port at the bottom of the pull hook can facilitate the connection and fixation of the glue rod and the pull hook when assembling the gun body.

[0013] Compared with the related art, the dispensing gun provided by the utility model has the following beneficial effects:

[0014] 1. The utility model adds a trigger adjustment knob at the position where the trigger of the glue dispensing gun is connected to the gripping handle. By rotating the trigger adjustment knob, the angle between the trigger and the gripping handle can be adjusted, and the trigger pulling distance can be changed to control the distance that the trigger pulls the glue rod forward, thereby changing the glue output of the glue dispensing gun and accurately controlling the glue output. The operation is more labor-saving and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of the dispensing gun provided by the utility model;

[0016] Figure 2 for Figure 1 The schematic diagram of the structure of the gun body position shown;

[0017] Figure 3 for Figure 2 Schematic diagram of the exploded structure shown.

[0018] Numbers in the figure: 1. Grip; 2. Gun body; 3. Trigger; 4. Rubber rod; 11. Trigger adjustment knob; 31. Transmission tooth; 32. Return spring; 33. Handle support end; 41. End stopper; 42. Retraction spring; 43. End; 44. Trigger transmission plate; 45. Retractor; 46. Fixing mouth. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0021] Please see the attached Figure 1-Figure 3 The dispensing gun provided by the embodiment of the present invention includes:

[0022] The gripping handle 1 enables the glue dispensing gun to be conveniently held and used. The upper front end of the gripping handle 1 is connected to the gun body 2. The gun body 2 is vertically connected to the gripping handle 1, and the gun body 2 is sleeved on the gripping handle 1. The gun body 2 can rotate relative to the gripping handle 1. During use, the gripping handle 1 or the gun body 2 can be freely rotated to facilitate glue dispensing.

[0023] A trigger 3 is hinged on the inner side of the connection between the gripping handle 1 and the gun body 2. A reset spring 32 is fitted on the position where the trigger 3 is hinged to the gripping handle 1. The two ends of the reset spring 32 are respectively clamped on the inner side of the trigger 3 and the inner side of the gripping handle 1. The setting of the trigger 3 can drive the rubber rod 4 to drive the end baffle 41 to move, and then push the bottom of the rubber hose to make the rubber hose discharge glue, and the reset spring 32 inside the trigger 3 can allow the trigger 3 to reset after use.

[0024] A rubber rod 4 is provided on the inner side of the gun body 2 for limited sliding. A trigger transmission piece 44 is provided on the middle part of the rubber rod 4 near the trigger 3. The trigger transmission piece 44 is connected to the trigger 3 for transmission. The rubber rod 4 is arranged on the inner side of the gun body 2 and can be driven by the trigger 3 to operate the rubber rod 4 to move inside the gun body 2. Driven by the trigger 3, the rubber rod 4 moves from back to front, thereby completing the squeezing of the bottom of the rubber tube placed inside the gun body 2 to complete the glue discharge.

[0025] A trigger adjustment knob 11 is located where the grip 1 connects to the trigger 3. This knob and trigger 3 share an adjustable function. By turning the knob 11, the angle of the trigger 3, i.e., the angle at which the trigger 3 is pulled relative to the grip 1 when in a relaxed state, can be controlled. For larger hands, a larger angle can be adjusted; for smaller hands, a smaller angle can be adjusted. This configuration of the trigger adjustment knob 11 allows the dispensing gun to be adapted to users with different hand sizes.

[0026] The trigger 3 is located at the top of one end inside the grip 1 and is provided with a transmission tooth 31. The transmission tooth 31 is connected to the trigger transmission plate 44. When the trigger 3 is pulled, the transmission tooth 31 moves, thereby driving the movement of the trigger transmission plate 44. The trigger transmission plate 44 pushes the rubber rod 4 forward to push the rubber hose to discharge glue.

[0027] One end of the return spring 32 connected to the gripping handle 1 is extended and connected to the handle support end 33. By setting the handle support end 33, the end length of the return spring 32 connected to the gripping handle 1 can be increased, thereby preventing the return spring 32 from being separated from the gripping handle 1 due to pressure, thereby improving the stability of the return spring 32 in use.

[0028] An end of the rubber rod 4 connected to the gun body 2 is provided with an end head 43, and an end baffle 41 is clamped on the outside of the end head 43. An elastic clamping ring is provided at the position where the end baffle 41 is connected to the end head 43. The end baffle 41 is connected to the end head 43 through the elastic clamping ring, which can facilitate the replacement and disassembly of the end baffle 41. The setting of the end baffle 41 can increase the contact area between the front end of the rubber rod 4 and the bottom of the rubber hose, thereby controlling the uniform glue discharge from the rubber hose.

[0029] A contraction spring 42 is sleeved on the outside of the other end of the glue rod 4 away from the end baffle 41. The contraction spring 42 is located on the outside of the gripping handle 1. Through the setting of the contraction spring 42, the glue rod 4 can be prevented from continuing to move forward after being pushed to the limit position, thereby ensuring the stable use of the glue gun and preventing the glue rod 4 from being excessively pushed into the bottom of the hose and causing damage to the glue gun.

[0030] A hook 45 is connected to the top of one end of the rubber rod 4 connected to the contraction spring 42. The setting of the hook 45 can facilitate pulling the rubber rod 4 to move outward after the rubber rod 4 is driven by the trigger 3 and pushed to the limit distance inside the gun body 2, which is convenient for the next operation.

[0031] A fixing opening 46 is provided at the position where the lower portion of the draw hook 45 is connected to the rubber rod 4 . The provision of the fixing opening 46 facilitates the installation and connection between the rubber rod 4 and the draw hook 45 .

[0032] Usage process:

[0033] Pull the hook 45 to pull the glue rod 4 from the inside of the gun body 2 to the tail end of the glue dispensing gun, then put the glue tube filled with glue into the inside of the gun body 2, pull the trigger 3 to drive the glue rod 4 to move, and use the glue rod 4 to squeeze the glue inside the glue tube to complete the glue discharge. When the glue tube needs to be replaced, pull the hook 45 to completely pull the glue rod 4 out of the inside of the gun body 2, replace the glue tube, and repeat the above operation.

[0034] During use, the trigger adjustment knob 11 can be adjusted as needed to change the pulling angle of the trigger 3 and control the opening angle of the grip 1 to make it suitable for the user's hand shape.

[0035] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0036] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Glue dispensing gun, characterized in that: The invention comprises a gripping handle (1), the upper front end of the gripping handle (1) is connected to a gun body (2), a trigger (3) is hingedly connected to the connection between the gripping handle (1) and the gun body (2), a rubber rod (4) is slidably penetrated through the inner side of the gun body (2), one end of the trigger (3) is located inside the gripping handle (1) and is transmission-connected to the rubber rod (4), a trigger adjusting knob (11) is provided at the position where the gripping handle is connected to the trigger, and the trigger adjusting knob (11) is transmission-connected to the trigger (3).

2. The dispensing gun according to claim 1, characterized in that: The rubber rod (4) is provided with an end head (43) at a position located at the end of the gun body (2); the outer wall of the end head (43) is limitedly engaged with an end stopper (41); the other end of the rubber rod (4) away from the end stopper (41) is sleeved with a contraction spring (42); one end of the contraction spring (42) abuts against the outer wall of the gripping handle (1); the other end of the contraction spring (42) is fixed to the end of the rubber rod (4).

3. The dispensing gun according to claim 1, characterized in that: The trigger (3) is located inside the gripping handle (1) and has a transmission tooth (31) fixed to its top end. The transmission tooth (31) is in transmission engagement with the rubber rod (4). A return spring (32) is sleeved on the position where the trigger (3) is hinged to the gripping handle (1). The two ends of the return spring (32) are respectively engaged with the inner side of the trigger (3) and the inner side of the gripping handle (1).

4. The dispensing gun according to claim 3, characterized in that: One end of the return spring (32) connected to the gripping handle (1) is provided with a handle supporting end (33), and the handle supporting end (33) is fitted and clamped on the inner side of the gripping handle (1).

5. The dispensing gun according to claim 4, characterized in that: A trigger transmission piece (44) is sleeved on the position where the rubber rod (4) is connected to the transmission tooth (31), and the transmission tooth (31) and the trigger transmission piece (44) are limitedly engaged.

6. The dispensing gun according to claim 2, characterized in that: A draw hook (45) is fixed to the rear end of the rubber rod (4), a fixing opening (46) is provided at the position where the draw hook (45) is connected to the rubber rod (4), and one end of the contraction spring (42) facing away from the gripping handle (1) abuts against the outer surface of the draw hook (45).

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