Glue extrusion tool

Abstract

The utility model provides a glue extrusion tool which comprises a main body, an extrusion mechanism, a retaining mechanism and a glue pipe fixing mechanism. The main body is provided with a receiving end used for being connected with the bottom end of a rubber pipe. The extrusion mechanism comprises an ejector rod and a rocker arm, the ejector rod movably penetrates through the main body, and the first end of the ejector rod is used for pushing the end face of the bottom end of the rubber tube; the rocker arm is hinged to the main body and configured to swing within a preset range, and the rocker arm is associated with the ejector rod so as to intermittently drive the ejector rod to move towards the receiving end of the main body in the swinging process; the retaining mechanism is associated with the ejector rod to prevent the ejector rod from moving in the direction opposite to the direction of the receiving end of the main body; the rubber tube fixing mechanism is arranged at the receiving end and comprises a fixing part movably arranged at the receiving end, the fixing part can move from a release position to an open position, and the outer contour diameter of the fixing part located at the open position is larger than that of the fixing part located at the release position. And when the fixing piece is located at the opening position, the side wall of the concave part at the bottom end of the rubber pipe is limited.

Description

Technical Field

[0001] This disclosure belongs to the field of hardware tool technology, and in particular relates to an adhesive extrusion tool. Background Technology

[0002] A caulking gun (or caulking gun) is a common tool used in home decoration and repair. The adhesive used with it is enclosed in a tubular casing. One end of the tubing is a nozzle, and the other end is a piston. Pressing the piston axially towards the nozzle forces the adhesive out. In use, the tubing is fixed to the caulking gun, and the user operates the caulking gun's rocker arm to drive the push rod, which in turn pushes the piston, causing it to move axially and extrude the adhesive. The tubing is relatively long and heavy, requiring a long restraining structure to secure it to the caulking gun. This results in a relatively long caulking gun itself, occupying a large space and making it inconvenient for storage and transportation. Utility Model Content

[0003] This disclosure aims to provide a glue extrusion tool with a shorter length.

[0004] In a first aspect, a glue extrusion tool is provided for receiving and pressing the bottom end of a glue tube, the bottom end having a recess, comprising a body, an extrusion mechanism, a stop mechanism, and a glue tube fixing mechanism. The body has a receiving end for engaging the bottom end of the glue tube; the extrusion mechanism includes a push rod and a rocker arm, the push rod movably extending through the body, a first end of the push rod for pushing the end face of the bottom end of the glue tube; the rocker arm is hinged to the body and configured to swing within a predetermined range, the rocker arm being associated with the push rod to intermittently drive the push rod toward the receiving end of the body during swinging; the stop mechanism is associated with the push rod to prevent the push rod from moving in the opposite direction along the receiving end of the body; the glue tube fixing mechanism is disposed at the receiving end, the glue tube fixing mechanism including a fixing member movably disposed at the receiving end, the fixing member being movable from a released position to an open position, the outer diameter of the fixing member in the open position being larger than the outer diameter in the released position, and the fixing member in the open position forming a limit on the sidewall of the recess at the bottom end of the glue tube.

[0005] In one possible implementation, the fastener has an axial limiting structure that, when the fastener is in the open position, axially limits the flange of the hose.

[0006] In conjunction with the above possible implementations, in another possible implementation, the fixing mechanism further includes a release lever, which is used to move from a first position to a second position under the action of the user. During the process of moving from the first position to the second position, the release lever causes the fixing member to retract radially from the open position to the release position.

[0007] In combination with the above possible implementations, in another possible implementation, the anti-reverse mechanism and the fixing mechanism share a release rod. When the release rod is in the first position, it acts on the top rod to limit the top rod's reverse movement along the receiving end of the main body. When the release rod is in the second position, it releases the restriction on the top rod.

[0008] In combination with the above possible implementations, in another possible implementation, the release lever acts on the fixing member in the first position to keep it in the open position.

[0009] In conjunction with the above possible implementations, in another possible implementation, the fastener is hinged to the body and has a free end for interacting with the hose and a connecting portion for receiving the action of the release lever; or, the fastener includes a central portion and an elastic portion extending radially from the central portion, the elastic portion having a free end for interacting with the hose and an intermediate portion for receiving the action of the release lever.

[0010] In addition to the above possible implementations, another possible implementation also includes a transmission component, which is associated with a fixed component, and a release rod that is inclined against the transmission component, which enables the transmission component to drive the fixed component.

[0011] In combination with the above possible implementations, in another possible implementation, the transmission component is sleeved outside the push rod and can move axially along the push rod to drive the fixing component to open outward and retract inward; and / or, the transmission component includes a cylinder and a first arm and a second arm that protrude radially along the cylinder, and the fixing component is connected to the first arm and the second arm through two sets of grooves and shafts.

[0012] In combination with the above possible implementations, in another possible implementation, the handle is foldably disposed on the main body, and / or the rocker arm is foldably disposed on the main body.

[0013] In combination with the above possible implementations, in another possible implementation, the handle and the main body are provided with a rotation limiting mechanism, and the handle is provided with a driving part that causes the rotation limiting mechanism to disengage from the limiting position. The driving part is located at the first end of the handle connected to the main body.

[0014] According to the glue extrusion tool provided in this disclosure, one end of the glue tube is fixed by a fixing member, eliminating the need for a structure of the same length as the glue tube to fix the glue tube. The tool length can be smaller, making it easier to store and transport. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an adhesive extrusion tool provided according to an embodiment of the present disclosure.

[0017] Figure 2 for Figure 1 A diagram showing the glue extrusion tool after the top cover has been removed.

[0018] Figure 3 This is a schematic diagram of the structure of one end of the connecting tube of the glue extrusion tool.

[0019] Figure 4 This is a longitudinal section view of the glue extrusion tool.

[0020] Figure 5 A schematic diagram of the main structure.

[0021] Figure 6 This is a schematic diagram of the transmission component.

[0022] Figure 7 This is a schematic diagram of the release lever.

[0023] Figure 8 This is a longitudinal sectional view of the glue extrusion tool in another embodiment.

[0024] Figure 9 for Figure 8 A magnified view of a portion of point A in the middle.

[0025] Figure 10 This is a structural schematic diagram of the fastener.

[0026] Figure 11 for Figure 8 The diagram shows the structure of the glue extrusion tool with the handle folded. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0028] Features and exemplary embodiments of various aspects of this disclosure will now be described in detail. Numerous specific details are set forth in the following detailed description in order to provide a thorough understanding of this disclosure. However, it will be apparent to those skilled in the art that this disclosure may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this disclosure by illustrating examples. This disclosure is by no means limited to any specific structures and configurations set forth below, but covers any modifications, substitutions, and improvements to parts, components, and connection methods without departing from the spirit of this disclosure. Well-known structures and techniques are not shown in the accompanying drawings and the following description in order to avoid unnecessarily obscuring this disclosure.

[0029] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this disclosure.

[0030] The adhesive extrusion tool disclosed herein is used to receive a glue tube 10 and push the bottom end of the glue tube 10 to extrude adhesive. The bottom end of the glue tube 10 has a recess 11. The adhesive extrusion tool includes a body 100, an extrusion mechanism 200, a backstop mechanism 300, and a glue tube fixing mechanism 400. The body 100 has a receiving end 110 for engaging the bottom end of the glue tube 10. The extrusion mechanism 200 includes a push rod 210 and a rocker arm 220. The push rod 210 movably extends through the body 100, and a first end 211 of the push rod 210 is used to push the bottom surface 14 of the recess 11 of the glue tube 10. The rocker arm 220 is hinged to the body 100 and configured to swing within a predetermined range. The rocker arm 220 is associated with the push rod 210 to intermittently drive the push rod 210 toward the receiving end 110 of the body 100 during the swinging process. The anti-reverse mechanism 300 is associated with the push rod 210 to prevent the push rod 210 from moving in the opposite direction along the receiving end 110 of the body 100. The hose fixing mechanism 400 is provided at the receiving end 110 and includes a fixing member 410 movably provided at the receiving end 110. The fixing member 410 is movable from a released position to an open position. The outer diameter of the fixing member 110 when it is in the open position is larger than the outer diameter when it is in the released position. When the fixing member 110 is in the open position, it forms a limit on the side wall 12 of the recess 11 of the hose 10, such as by generating static friction force against the side wall 12 to form an axial limit.

[0031] refer to Figures 1 to 7 The document illustrates the detailed structure of the glue extrusion tool. Specifically, Figure 1 This is a schematic diagram of an adhesive extrusion tool provided according to an embodiment of the present disclosure. Figure 2 for Figure 1 A diagram showing the glue extrusion tool after the top cover has been removed. Figure 3 This is a schematic diagram of the structure of one end of the connecting tube of the glue extrusion tool. Figure 4 This is a longitudinal section view of the glue extrusion tool. Figure 5 A schematic diagram of the main structure. Figure 6 This is a schematic diagram of the transmission component. Figure 7 This is a schematic diagram of the release lever. Wherein, Figure 3 Half of the structure at the first end 110 of the main body 100 is removed to reveal its internal structure.

[0032] The main body 100 is generally cylindrical, with a receiving end 110 at one end and a tail end 120 at the other. The receiving end 110 has a cylindrical structure for inserting the tubing 10. The tail end 120 is provided with a handle 130 for the user to grip. The handle 130 extends approximately radially along the main body 100. A first bracket 140 and a second bracket 150 are provided inside the main body 100. The first bracket 140 is used to mount the extrusion mechanism 200, and the second bracket 150 is used to mount the tubing fixing mechanism 400. A backstop mechanism 300 is also mounted between the first bracket 140 and the second bracket 150. The first end 131 of the handle 130 is hinged to the tail end 120 of the main body 100, and the portion between the first end 131 and the second end 132 is available for gripping; therefore, the handle 130 can be folded into the main body 100. The handle 130 should remain rigidly fixed to the main body 100 when in the unfolded position. Therefore, a rotation limit mechanism is provided between the two to prevent the handle 130 from being folded to the main body 100 when in the unfolded position.

[0033] The rotation limiting mechanism is also provided with a drive unit 133 for releasing the handle 130 from its limiting position. The rotation limiting mechanism is located between the handle 130 and the main body 100. Specifically, the rotation limiting mechanism includes limiting steps 121 on both sides of the tail end 120 of the main body 100 and limiting latches 134 on the first end 131 of the handle 130. When the handle 130 rotates relative to the main body 100 to the working position, the limiting latches 134 are limited beyond the limiting steps 121, preventing the handle 130 from rotating in the opposite direction. When the handle 130 needs to be folded, pressing the drive unit 133 causes the limiting latches 134 to lift away from the limiting steps 121, thereby disengaging from the limiting steps 121 and allowing the handle 130 to rotate. The rocker arm 220 is hinged to the main body 100 and is used by the user to operate it to drive the moving iron 230 to move. When the moving iron 230 moves, it can drive the push rod 210 to move towards the receiving end 110 of the main body 100. The first spring 431 is used to return the moving iron 230 to its original position. The anti-retraction mechanism 300 is used to prevent the push rod 210 from retracting. The anti-retraction mechanism 300 includes a movable rod 310 with a through hole. The movable rod 310 is rotatably connected to the main body 100 at one end, and the push rod 210 passes through the movable rod 310. The structural principles of the anti-retraction mechanism 300 and the pressing mechanism 200 are prior art in the field and will not be described in detail here.

[0034] The hose fixing mechanism 400 includes a fixing member 410, a release rod 420, a movable rod 310, and a transmission member 440. The fixing member 410 is hinged to the first support 140 of the main body 100 via a hinged end 411. In the unfolded position, its entire body extends outward along the radial direction of the main body 100, so that the free end 412 is approximately located near the inner wall of the cylindrical structure of the receiving end 110. The fixing member 410 is set to be in the unfolded position by default. The user needs to apply a release action to retract the free end 412 of the fixing member 410 towards the centerline of the main body 100. After the user stops the release action, the fixing member 410 returns to the unfolded position. The free end 412 is provided with a limiting structure 413, which is a protruding edge in this embodiment. When installing the tubing 10, the user applies a release action to move the retainer 410 to the release position, inserting one end of the tubing 10 with the recessed portion 11 into the cylindrical structure of the receiving end 110. The retainer 410 is then released and returned to the unfolded position. The free end of the retainer 410 abuts against the side wall 12 of the recessed portion 11 of the tubing 10, and the limiting structure 413 "hooks" the protruding edge 13 of the side wall 12, preventing the tubing 10 from being pulled out of the receiving end 110. This eliminates the need for a structure at the receiving end 110 to accommodate the nozzle of the tubing 10, significantly reducing the length of the main body 100. Specifically, there are two retainers 410, distributed on both sides of the central axis of the main body 100.

[0035] The fixing member 410 is directly driven by the transmission member 440. The transmission member 440 includes a cylinder 441, a first arm 442, and a second arm 443. The first arm 442 and the second arm 443 extend outward from the cylinder 441 and are used to connect the free end 412 of the fixing member 410. Specifically, the free end 412 of the fixing member 410 is provided with a pin 414, the end of the first arm 442 is provided with a first groove 444, and the end of the second arm 443 is provided with a second groove 445. The orientation of the first groove 444 and the second groove 445 is such that when the transmission member 440 moves away from the receiving end 110, the sidewall of the groove abuts against the pin 414 of the free end 412 of the fixing member 410, thereby driving the free end 412 to retract towards the center.

[0036] Furthermore, the release lever 420 is hinged to the main body 100 through the hole 423 and is associated with the movable rod 310 of the anti-reverse mechanism 300. When the release lever 420 is operated (as in...), Figures 1-3When the lower end of the release lever is moved to the right in the indicated position, its first actuating part 421 drives the movable lever 310 to the left to release the push rod 210, and the second actuating part 422 acts to the right on the flange 446 of the transmission member 440 to drive the transmission member 440 away from the receiving end 110. This allows the limiting structure 413 of the free end 412 of the fixing member 410 to disengage from the limiting of the hose 10. The user can then remove the hose 10 and install a new one, and pull the push rod 210 back to its original position. After installing the new hose 10, the release lever 420 is released, the movable lever 310 resets, and drives the transmission member 440 to move towards the receiving end 110, ultimately driving the fixing member 410 to the unfolded position to fix the hose 10. The second spring 432 is disposed between the transmission member 440 and the movable lever 310, causing the upper end of the movable lever 310 to tilt towards the tail end 120, thereby preventing the push rod 210 from retracting. The second spring 432 also keeps the release lever 420 in the default position. When the release lever 420 is activated, the second action part 422 acts on the flange 446 of the transmission member 440 to pull the fixing member 410 from the unfolded position toward the second end 120 to release the hose 10.

[0037] The way in which the release lever 420 drives the fixing member 410 is not limited to the way described in the foregoing embodiments. It can also be other transmission structures, such as setting up a structure similar to the movable lever 310 without relying on the movable lever 310 of the stop mechanism 300, or not using the movable lever 310 and the release lever 420 (which only control the stop and release of the push rod 210), but setting up a separate mechanism to drive the fixing member 410. For example, a structure that can extend to the outside of the main body 100 for user operation is set up in the transmission member 440, and the user directly operates the structure to drive the transmission member 440 forward or backward.

[0038] The glue extrusion tool provided in this disclosure fixes the glue tube 10 by the fixing member 410 acting on one end of the glue tube 10. It does not require a structure of the same length as the glue tube 10 to fix the glue tube 10, so the overall length of the glue extrusion tool can be smaller.

[0039] refer to Figures 8 to 10 . Figure 8 This is a longitudinal sectional view of the glue extrusion tool in another embodiment. Figure 9 for Figure 8 A magnified view of point A in the middle. Figure 10 This is a structural schematic diagram of fastener 410a. Figure 11 for Figure 8 The diagram shows the structure of the glue extrusion tool with the handle folded.

[0040] Figure 8The glue extrusion tool shown is largely the same in structure as the glue extrusion tool in the previous embodiment, with the main difference being that the glue tube fixing mechanism 400a is different from the glue tube fixing mechanism 400. In this embodiment, the fixing member 410a no longer switches between the unfolded and released positions through a movable mechanism, but rather achieves unfolding and resetting through its own elastic deformation.

[0041] The hose fixing mechanism 400a includes a fixing member 410a, a release rod 420a, a movable rod 310, and a transmission assembly. The bracket 150a has a central hole. The transmission assembly passes through the central hole to connect the release rod 420a and the fixing member 410a at both ends of the central hole. The fixing member 410a is set to be in the extended position by default. A release action is required from the user to retract the outermost edge of the fixing member 410a towards the centerline of the main body 100. After the user stops the release action, the fixing member 410a returns to the extended position.

[0042] The fixing member 410a includes a central portion and an elastic element. The central portion is the central ring 411a shown in the figure, and the elastic element is a plurality of fins 412a. The plurality of fins 412a are arranged radially around the central ring 411a. The radial structure formed by the plurality of fins 412a has a certain taper. The fins 412a have a certain degree of elasticity; when a radial force is applied to their middle portion, they will retract towards the center, and their ends will also move closer to the center.

[0043] The transmission assembly includes an inner sleeve 445a, an outer sleeve 444a, and a constraint member 442a. The outer sleeve 444a is disposed in the central hole of the bracket 150a and is axially movable. The left side of the outer sleeve 444a protrudes from the central hole, and a fixing member 410a is fitted onto its outer surface. The inner sleeve 445a is disposed inside the outer sleeve 444a, and its two ends protrude from the two ends of the outer sleeve 444a, respectively. A constraint member 442a is provided at one end of the inner sleeve 445a protruding from the outer sleeve 444a, and the other end protruding from the outer sleeve 444a has a flange 446a to be pulled by the second actuating part 422 of the release member 420. The constraint member 442a has an end portion and a circumferential portion. The end portion is fixed to the outside of the inner sleeve 445a by a retaining ring 443a. The circumferential portion extends axially from the end portion. The diameter of the edge of the circumferential portion is slightly smaller than the maximum diameter of the fixing member, so it can act on the conical surface of the fixing member 410a.

[0044] like Figure 9As shown, when the lower end of the release member 420a is pulled to the right, its entire structure rotates around the upper hinge axis. Therefore, the second actuating part 422 below the hinge axis can pull the inner sleeve 445a to the right, while the first actuating part 421 on the right side of the hinge axis pushes the upper end of the movable rod 310 to the left, thereby releasing the anti-reverse restriction on the top rod 210. When the inner sleeve 445a is pulled to the right, the restraining member 442a moves to the right, pressing against the conical surface of the fixing member 410a, forcing all the fins 412a to retract towards the center. When the release member 420a is released, the fixing member 410a is released by the restraining member 442a and re-deploys.

[0045] When the handle 130 is folded, it can be locked to the main body by a locking mechanism. The main body is provided with a hook 111. A trigger 90 is provided at the end of the handle 130. The trigger 90 is hinged to the handle 130, with a drive part 91 on one side of the hinge and a mating part 92 that engages with the hook 111 on the other side. When the drive part 91 is pressed, the mating part 92 can disengage from the hook 111, allowing the handle 130 to unfold.

[0046] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this disclosure, and these modifications or substitutions should all be covered within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A glue extrusion tool for receiving and pushing the bottom end of a glue tube, said bottom end having a recessed portion, characterized in that, include: The main body has a receiving end, which is used to connect to the bottom end of the tubing; The extrusion mechanism includes a push rod and a rocker arm. The push rod movably extends through the body, and a first end of the push rod is used to push the end face of the bottom end of the tube. The rocker arm is hinged to the body and configured to swing within a predetermined range. The rocker arm is associated with the push rod to intermittently drive the push rod toward the receiving end of the body during the swing. A backstop mechanism, associated with the push rod, prevents the push rod from moving in the opposite direction along the receiving end of the body; as well as A hose fixing mechanism is provided at the receiving end. The hose fixing mechanism includes a fixing member movably provided at the receiving end. The fixing member can move from a release position to an open position. The outer diameter of the fixing member when it is in the open position is greater than the outer diameter when it is in the release position. When the fixing member is in the open position, it forms a limit on the side wall of the recessed portion at the bottom end of the hose.

2. The glue extrusion tool according to claim 1, characterized in that, The fastener has an axial limiting structure, which, when the fastener is in the open position, forms an axial limit on the protrusion of the hose.

3. The glue extrusion tool according to claim 1, characterized in that, The fixing mechanism also includes a release lever for moving from a first position to a second position under user action, wherein the release lever causes the fixing member to retract radially from the open position to the release position during the movement from the first position to the second position.

4. The glue extrusion tool according to claim 3, characterized in that, The anti-reverse mechanism and the fixing mechanism share the release rod. When the release rod is in the first position, it acts on the top rod to restrict the top rod from moving in the opposite direction along the receiving end of the main body. When the release rod is in the second position, it releases the restriction on the top rod.

5. The glue extrusion tool according to claim 3, characterized in that, When the release lever is in the first position, it acts on the fixing member to keep it in the open position.

6. The glue extrusion tool according to claim 3, characterized in that, The fastener is hinged to the body and has a free end for interacting with the hose and a connecting portion for receiving the action of the release lever; or, the fastener includes a central portion and an elastic portion extending radially from the central portion, the elastic portion having a free end for interacting with the hose and an intermediate portion for receiving the action of the release lever.

7. The glue extrusion tool according to claim 6, characterized in that, It also includes a transmission component associated with a fixed component, and a release lever that rests obliquely against the transmission component, the release lever enabling the transmission component to drive the fixed component.

8. The glue extrusion tool according to claim 7, characterized in that, The transmission component is sleeved outside the top rod and can move axially along the top rod to drive the fixing component to open outward and retract inward; and / or, the transmission component includes a cylinder and a first arm and a second arm that protrude radially along the cylinder, and the fixing component is connected to the first arm and the second arm through two sets of grooves and shafts.

9. The glue extrusion tool according to claim 3, characterized in that, The handle is foldably mounted on the main body, and / or the rocker arm is foldably mounted on the main body.

10. The glue extrusion tool according to claim 9, characterized in that, The handle and the main body are provided with a rotation limiting mechanism. The handle is provided with a driving part that causes the rotation limiting mechanism to disengage from the limiting position. The driving part is located at the first end of the handle that is connected to the main body.

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