Glue gun

Abstract

The utility model provides a glue gun, which relates to the technical field of gluing tools and comprises a gun body frame internally provided with a barrel-shaped space for mounting a glue barrel, the glue gun further comprises a bracket arranged in the barrel-shaped space, the main body of the bracket is of an arc-shaped plate-shaped structure, and the outer side surfaces of the two ends of the bracket in the circumferential direction are rotationally mounted on the gun body frame through rotating shafts respectively; the bracket main body can rotate to a first rotating station relative to the gun body frame so as to enable the central axis direction of the bracket main body to be perpendicular to the central axis direction of the cylindrical space, or rotate to a second rotating station so as to enable the central axis direction of the bracket main body to be parallel to or coincide with the central axis direction of the cylindrical space; and a positioning structure for temporarily positioning the bracket at the second rotating station or the first rotating station is arranged on the bracket and / or the gun body frame. According to the glue gun, the problem that the glue barrel shakes in the gun body frame when the glue gun is used for gluing in the prior art is solved, and the operation efficiency and the user operation experience feeling are improved.

Description

Technical Field

[0001] This utility model relates to the field of glue application tools, and in particular to a glue gun. Background Technology

[0002] With the continuous development of industrial manufacturing and construction decoration, the use and demand for glue application tools are increasing daily as important operational equipment. Glue guns, as common glue application tools, are widely used in sealing, bonding, and filling operations.

[0003] A glue gun typically consists of a gun frame, a handle, and a glue cartridge ejector rod. The gun frame has a cylindrical space inside for mounting the glue cartridge, and the glue cartridge ejector rod is inserted into this cylindrical space. In use, the glue cartridge is placed inside the cylindrical space of the gun frame from one side, and the glue cartridge ejector rod is used to push forward and apply glue to the rear end of the cartridge. The stability of the glue cartridge inside the cylindrical space of the gun frame is one of the key factors affecting the user experience.

[0004] In existing technologies, during the use of glue guns, the glue cartridge tends to sway back and forth within the cylindrical space of the gun frame, which affects the stability and accuracy of the operation. The operator needs to hold the glue cartridge with their hand to apply the glue, which not only makes the operation difficult for customers, but also easily causes user fatigue and affects the efficiency of operation. Utility Model Content

[0005] The purpose of this invention is to provide a glue gun to alleviate the aforementioned technical problems existing in the prior art.

[0006] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0007] This utility model provides a glue gun, including a gun frame with a cylindrical space inside for installing glue cartridges, and in particular, the glue gun also includes a bracket;

[0008] The bracket is disposed inside the cylindrical space and includes a bracket body with an arc-shaped plate structure. The outer surfaces of both ends of the bracket body in the circumferential direction are respectively rotatably mounted to the gun frame via pivots. The central axis direction of the imaginary cylinder in which the bracket body is located is taken as the central axis direction of the bracket body.

[0009] The bracket body can at least rotate relative to the gun frame to a first rotation position so that the central axis direction of the bracket body is perpendicular to the central axis direction of the cylindrical space, or rotate relative to the gun frame to a second rotation position so that the central axis direction of the bracket body is parallel to or coincides with the central axis direction of the cylindrical space;

[0010] The bracket and / or the gun body frame are provided with a positioning structure for temporarily positioning the bracket at the second rotating position or the first rotating position.

[0011] In an optional embodiment, the glue gun further includes a glue cylinder top rod inserted into the cylindrical space;

[0012] An avoidance groove is provided on the end face of the first end in the direction of the central axis of the bracket body. The avoidance groove passes through the bracket body radially and is used to avoid the rubber tube top rod when the bracket body is rotated to the first rotating position.

[0013] In an optional embodiment, the positioning structure includes a positioning structure one disposed at a first end in the circumferential direction of the bracket body and a positioning structure two disposed at a second end in the circumferential direction of the bracket body.

[0014] The positioning structure one and the positioning structure two each include at least one first protrusion and at least one second protrusion, both of which protrude outward toward the outside of the bracket body; when the bracket body is rotated to the second rotating position or the first rotating position, the gun frame is confined between the first protrusion and the second protrusion.

[0015] In an optional embodiment, of the two positioning structures, the first protrusion and the second protrusion of one are staggered along the central axis of the bracket body.

[0016] In an optional embodiment, the surfaces of the first protrusion and the second protrusion are curved.

[0017] In an optional embodiment, the outer surface of the two end regions at both ends of the bracket body in the circumferential direction is parallel to the inner surface of the gun frame.

[0018] In an optional embodiment, one axial end of the rotating shaft is a fixed end and the other end is a movable end; the fixed end of the rotating shaft is fixedly installed on either the bracket body or the gun frame, and the movable end of the rotating shaft is rotatably installed in a mounting hole provided on the other of the bracket body and the gun frame.

[0019] In an optional embodiment, the end face of the movable end of the rotating shaft is provided with a slot that extends toward the fixed end of the rotating shaft and penetrates the rotating shaft radially.

[0020] In an optional embodiment, the inner surfaces of both ends of the bracket body in the circumferential direction are provided with anti-slip portions.

[0021] In an optional embodiment, the anti-slip part is a raised limiting surface that protrudes toward the inner surface of the bracket body.

[0022] The glue gun provided in this embodiment of the invention can achieve at least the following beneficial effects:

[0023] Compared to traditional glue guns, this utility model embodiment adds a bracket to support and fix the glue cartridge, thus preventing the glue cartridge from shaking inside the gun frame during use and improving the stability of glue application. Furthermore, this utility model can adapt to different user habits of left- or right-handed operation, thereby improving operational convenience, operational efficiency, and user experience while effectively fixing the glue cartridge.

[0024] Other beneficial effects that can be achieved by the embodiments of this utility model will be described in more detail in the Detailed Description of the Embodiments section of this specification. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the overall structure of the glue gun provided in this embodiment of the present invention, with the bracket rotated to the first rotating position when the gun is held in the right hand;

[0027] Figure 2 for Figure 1 Enlarged view of the local structure of region A in the middle;

[0028] Figure 3 The glue gun provided in this embodiment of the utility model is Figure 1 A schematic diagram of the overall structure of its gun frame from this perspective;

[0029] Figure 4 The glue gun provided in this embodiment of the utility model is Figure 1 A schematic diagram of the overall structure of its bracket from this perspective;

[0030] Figure 5 This is a schematic diagram of the bracket from the perspective of viewing the first end in the direction of the central axis towards the second end in the direction of the central axis.

[0031] Figure 6 A schematic diagram of the overall structure of the glue gun provided in this embodiment of the present invention, with the bracket rotated to the first rotating position when the gun is held in the right hand;

[0032] Figure 7 for Figure 6 Enlarged view of the local structure of region B in the middle;

[0033] Figure 8 The glue gun provided in this embodiment of the utility model is Figure 6 A schematic diagram of the overall structure of its bracket from this perspective;

[0034] Figure 9 This is a schematic diagram of the bracket from the perspective of viewing the second end in the direction of the central axis towards the first end in the direction of the central axis.

[0035] Figure 10 A schematic diagram of the overall structure of the glue gun provided in this embodiment of the present invention, in which the bracket is rotated to the second rotating position when the gun is held in the right hand;

[0036] Figure 11 A schematic diagram of the overall structure of the glue gun provided in this embodiment of the present invention, with the bracket rotated to the first rotating position when the gun is held in the left hand;

[0037] Figure 12 A schematic diagram of the overall structure of the glue gun provided in this embodiment of the present invention, with the bracket rotated to the first rotating position when the gun is held in the left hand;

[0038] Figure 13 A schematic diagram of the overall structure of the glue gun provided in this embodiment of the present invention, with the bracket rotated to the second rotating position when the gun is held in the left hand;

[0039] Figure 14 This is a schematic diagram of the overall structure of the glue gun provided in this embodiment of the present invention, with the bracket rotated to the second rotating position when the gun is held in the left hand.

[0040] Icons: 1-Gun frame; 11-Mounting hole; 2-Plug top rod; 3-Bracket; 301-First end in the direction of the central axis; 302-Second end in the direction of the central axis; 303-First end in the direction of the circumference; 304-Second end in the direction of the circumference; 300-Allowing groove; 31-Positioning structure one; 32-Positioning structure two; 36-Anti-slip part; 4-Rotating shaft; 41-Slotted. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] It should be noted that similar labels and letters in the accompanying drawings indicate similar items. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in subsequent accompanying drawings.

[0044] In the description of this utility model, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0047] This embodiment provides a glue gun, as shown in the following figure. Figures 1 to 13The glue gun includes a gun frame 1, inside which is a cylindrical space for mounting glue cartridges. The glue gun also includes a bracket 3; the bracket 3 is located inside the cylindrical space and includes a bracket body with an arc-shaped plate structure. The outer surfaces of the two ends (first end 303 and second end 304) of the bracket body in the circumferential direction are rotatably mounted to the gun frame 1 via a pivot 4. Taking the central axis of the imaginary cylinder containing the bracket body as the central axis direction of the bracket body: the bracket body can at least rotate relative to the gun frame 1 to a first rotation position so that the central axis direction of the bracket body is perpendicular to the central axis direction of the cylindrical space, or rotate relative to the gun frame 1 to a second rotation position so that the central axis direction of the bracket body is parallel to or coincides with the central axis direction of the cylindrical space of the gun frame 1. A positioning structure is provided on the bracket 3 and / or the gun frame 1 for temporarily positioning the bracket 3 at the second or first rotation position.

[0048] During use, a rubber tube top rod 2 is inserted inside the cylindrical space of the gun body frame 1. The user operation method is as follows:

[0049] When glue is needed, you can do so as follows: Figure 10 As shown, holding the gun in the right hand, rotate the bracket body to the second position on the right side of the gun frame. Then, with the left hand, insert the rubber tube into the cylindrical space from the left side of the gun frame 1. Push the rubber tube push rod 2 forward to press against the rear end of the rubber tube, so that the rubber tube is fixed in the cylindrical space of the gun frame 1 by the rubber tube push rod 2 and the bracket body. When packing, retract the rubber tube push rod 2 to remove the rubber tube, and rotate the bracket body to the position shown. Figures 1 to 9 As shown or as Figure 11 and Figure 12 The gun frame is packed at the first station on either side, and the right hand holding the gun is preferably rotated to the position shown. Figures 1 to 9 At the first workstation shown, the rotation stroke is shortened, and the obstruction of the rotation path by the rubber cylinder push rod 2 is avoided (if obstruction occurs, the rubber cylinder push rod needs to be retracted first and then pushed forward, which is cumbersome), so as to improve the operation efficiency and convenience.

[0050] It is also possible to Figure 13 and Figure 14 As shown, holding the gun in the left hand, rotate the bracket body to the second position on the left side of the gun frame. Then, with the right hand, insert the rubber tube into the cylindrical space from the right side of the gun frame 1. Push the rubber tube push rod 2 forward to press against the rear end of the rubber tube, so that the rubber tube is fixed in the cylindrical space of the gun frame 1 by the rubber tube push rod 2 and the bracket body. When packing, retract the rubber tube push rod 2 to remove the rubber tube, and rotate the bracket body to the position shown. Figure 11 and Figure 12 As shown or as Figures 1 to 9 The gun frame is packed at the first station on either side, and the left hand holding the gun is preferably rotated to the position shown. Figure 11 and Figure 12At the first workstation shown, the rotation stroke is shortened, and the obstruction of the rotation path by the rubber cylinder push rod 2 is avoided (if obstruction occurs, the rubber cylinder push rod needs to be retracted first and then pushed forward, which is cumbersome), so as to improve the operation efficiency and convenience.

[0051] Because this utility model adds a bracket 3 to support and fix the glue tube compared to the traditional glue gun, it can prevent the glue tube from shaking inside the gun frame 1 during use, thus improving the stability when applying glue. In addition, this utility model can adapt to the different usage habits of left-handed and right-handed users, so as to improve the convenience of operation, improve the operation efficiency and user experience while effectively fixing the glue tube.

[0052] Continue to refer to Figures 1 to 9 ,as well as Figure 11 and Figure 12 The bracket body has a first end 301 along the central axis and a second end 302 along the central axis. To further improve the packing rate of the glue gun during packaging and reduce the difficulty of transporting and storing the glue gun, in some optional embodiments of this example, a clearance groove 300 is provided on the end face of the first end 301 along the central axis of the bracket body. The clearance groove 300 penetrates the bracket body radially and is used to avoid the glue cylinder top rod 2 when the bracket body is rotated to the first rotating position. This avoids the problem that some parts of the bracket 3 protrude from the gun frame 1 when it is in the stored state (i.e., when the bracket body is rotated to the first rotating position), reduces the storage volume of the glue gun, and improves the packing rate.

[0053] In some optional embodiments of this example, the positioning structure includes a positioning structure 31 located at the first circumferential end 303 of the bracket body and a positioning structure 32 located at the second circumferential end 304 of the bracket body. Positioning structure 31 and positioning structure 32 each include at least one first protrusion and at least one second protrusion, both protruding outwards from the bracket body. When the bracket body is rotated to the second rotation position or the first rotation position, the gun frame 1 is confined between the first and second protrusions. Slight elastic deformation can occur when the bracket body rotates, causing the first and second protrusions to be pressed into the interior of the gun frame 1, and then ejected for positioning after the bracket body rotates to the first or second position.

[0054] Reference Figure 4 In some optional embodiments of this example, in either positioning structure 31 or positioning structure 32, the first protrusion and the second protrusion of one are staggered along the central axis of the bracket body. This structure can reduce the rotational resistance of the bracket when it rotates towards one side of the gun frame 1 while the positioning structure performs its positioning function, further improving the user experience.

[0055] In some optional embodiments of this example, the surfaces of the first protrusion and the second protrusion are curved (a curved surface refers to a surface formed by the movement of points on a curve in a three-dimensional space according to a certain rule. It can be a variety of complex shapes, including but not limited to spheres, cylinders, cones and their various variations. For example, a sloping arc shape is a specific type of curved surface that contains an inclination angle and has arc characteristics), so that the bracket can change work positions more easily, the user operation is less strenuous, and thus further improves the user experience.

[0056] In some optional embodiments of this example, the outer surfaces of the two end regions of the bracket body in the circumferential direction are parallel to the inner surface of the gun frame 1. For example, the outer surfaces of the two end regions of the bracket body in the circumferential direction and the inner surface of the gun frame 1 are both planes or both are arc surfaces, so as to further improve assembly stability.

[0057] In some optional embodiments of this example, one axial end of the rotating shaft 4 is a fixed end, and the other end is a movable end; the fixed end of the rotating shaft 4 is fixedly installed on either the bracket body or the gun frame 1, and the movable end of the rotating shaft 4 is rotatably installed in the mounting hole 11 provided on the other of the bracket body and the gun frame 1. For example, but not limited to, such as Figure 2 and Figure 3 As shown, the fixed end of the rotating shaft 4 is fixedly installed on the bracket body, and the movable end of the rotating shaft 4 is rotatably installed in the mounting hole 11 provided on the gun body frame 1. The rotating shaft 4 can be used with structural components such as cotter pins to achieve a fit with the mounting hole 11. In some optional embodiments of this example, the end face of the movable end of the rotating shaft 4 is provided with a slot 41 extending toward the fixed end of the rotating shaft 4 and penetrating the rotating shaft 4 radially. In this way, the rotating shaft 4 will form a forked structure. During assembly, the two forked parts on both sides of the slot 41 are brought together and inserted into the corresponding mounting hole 11. The two forked parts automatically open and press against the inner wall of the mounting hole 11 to lock the rotating shaft 4 in the corresponding mounting hole 11. When an external force rotates the bracket body, the two forked parts of the rotating shaft 4 can rotate relative to the mounting hole 11. After the external force is removed, the aforementioned locked state is restored. Alternatively, a blocking part can be provided at the ends of the two bifurcated parts mentioned above, so as to block the side of the mounting hole 11 from being passed through after the bifurcated part passes through the corresponding mounting hole 11, thereby preventing the movable end of the rotating shaft 4 from coming out of the mounting hole 11 during the rotation of the bracket body, thereby improving the structural reliability.

[0058] In some optional embodiments of this example, the inner surfaces of both ends of the bracket body in the circumferential direction are provided with anti-slip portions 36. The anti-slip portions 36 may be textured surfaces, rubber pads, rubber coatings, or raised limiting surfaces that protrude toward the inner surface of the bracket body, etc., to increase the friction between the bracket body and the rubber tube surface when the bracket body rotates to the second working position and contacts the rubber tube, thereby improving the stability and reliability of fixing the rubber tube.

[0059] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A glue gun, comprising a gun body frame (1) having an internal cylindrical space for mounting a glue cartridge, characterized in that: The glue gun also includes a bracket (3); The bracket (3) is located inside the cylindrical space and includes a bracket body with an arc-shaped plate structure. The outer surfaces of both ends of the bracket body in the circumferential direction are rotatably mounted on the gun frame (1) via a rotating shaft (4). The direction of the central axis of the imaginary cylinder in which the bracket body is located is the direction of the central axis of the bracket body. The bracket body can at least rotate relative to the gun frame (1) to a first rotation position so that the direction of the central axis of the bracket body is perpendicular to the direction of the central axis of the cylindrical space, or rotate relative to the gun frame (1) to a second rotation position so that the direction of the central axis of the bracket body is parallel to or coincides with the direction of the central axis of the cylindrical space; The bracket (3) and / or the gun frame (1) are provided with a positioning structure for temporarily positioning the bracket (3) at the second rotating position or the first rotating position.

2. The glue gun according to claim 1, characterized in that: The glue gun also includes a glue cylinder top rod (2) inserted into the cylindrical space; An avoidance groove (300) is provided on the end face of the first end (301) in the direction of the central axis of the bracket body. The avoidance groove (300) penetrates the bracket body radially and is used to avoid the rubber tube top rod (2) when the bracket body is rotated to the first rotating position.

3. The glue gun according to claim 1, characterized in that: The positioning structure includes a positioning structure one (31) located at the first circumferential end (303) of the bracket body and a positioning structure two (32) located at the second circumferential end (304) of the bracket body. The positioning structure one (31) and the positioning structure two (32) respectively include at least one first protrusion and at least one second protrusion, and the first protrusion and the second protrusion both protrude toward the outside of the bracket body; When the bracket body is rotated to the second rotating position or the first rotating position, the gun frame (1) is confined between the first protrusion and the second protrusion.

4. The glue gun according to claim 3, characterized in that: Of the positioning structure one (31) and the positioning structure two (32), the first protrusion and the second protrusion of one are staggered along the central axis of the bracket body.

5. The glue gun according to claim 3, characterized in that: The surfaces of the first protrusion and the second protrusion are curved.

6. The glue gun according to claim 1, characterized in that: The outer surface of the two end regions of the bracket body in the circumferential direction is parallel to the inner surface of the gun frame (1).

7. The glue gun according to claim 1, characterized in that: One end of the rotating shaft (4) is a fixed end and the other end is a movable end. The fixed end of the rotating shaft (4) is fixedly installed in either the bracket body or the gun frame (1), and the movable end of the rotating shaft (4) is rotatably installed in the mounting hole (11) provided on the other of the bracket body and the gun frame (1).

8. The glue gun according to claim 7, characterized in that: The movable end of the rotating shaft (4) has a slot (41) extending toward the fixed end of the rotating shaft (4) and penetrating the rotating shaft (4) radially.

9. The glue gun according to claim 1, characterized in that: The inner surfaces of both ends of the bracket body in the circumferential direction are provided with anti-slip parts (36).

10. The glue gun according to claim 9, characterized in that: The anti-slip part (36) is a raised limiting surface that protrudes toward the inner surface of the bracket body.

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