Large-stroke propelling glue gun with rack structure

Abstract

The invention discloses a rack structure large-stroke propelling glue gun which comprises a glue gun body, the glue gun body is provided with a glue gun handle, a propelling rod and a glue gun shell, the propelling rod penetrates through the upper end of the glue gun handle, and the propelling rod is provided with a stroke adjusting rod, an unlocking piece, a rack sliding block, a stroke adjusting nut and a propelling piece. The bottom of the rack sliding block is connected with a trigger gear, the lower side of the trigger gear is connected with a trigger, one end of a stroke adjusting rod is fixedly connected through a stroke adjusting nut, and the other end of the stroke adjusting rod penetrates through the rack sliding block and is inserted into the pushing piece. The glue gun has the beneficial effects that the glue gun has the advantages of preventing glue dripping and stably transferring force and discharging glue at a constant speed, so that the problems that the force for pressing glue by holding a trigger by hand is increased, labor is wasted, and a worker cannot press the glue gun with high strength for a long time are solved.

Description

Technical Field

[0001] The invention relates to the field of computer technology, in particular to a large-stroke propulsion glue gun with a rack structure. Background Art

[0002] The existing glue gun propulsion mechanisms are all simple lever structures. The short end of the trigger rotating shaft pushes the metal propulsion block. Limited by the length of the short end, the travel of the glue gun propulsion block is relatively short, about 13 mm. If the length of the short end lever is lengthened, the force of squeezing the glue by holding the trigger will increase, which is more laborious and not conducive to workers squeezing the glue gun for a long time with high intensity. The forward travel of the glue gun is mostly non-adjustable, and the amount of glue squeezed depends entirely on the angle of the hand pressing the trigger, which is inaccurate and easy to squeeze out too much glue, resulting in waste. The anti-glue back design of the unlocking metal sheet at the tail end of the existing glue gun is generally complex in structure and inconvenient to adjust. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides a large-stroke propulsion glue gun with a rack structure, which has the advantages of preventing glue dripping and smoothly transmitting force and discharging glue at a uniform speed, thereby solving the problem that the force of pressing the glue by holding the trigger will increase, which is more laborious and not conducive to workers squeezing the glue gun for a long time with high intensity.

[0005] (II) Technical solution

[0006] In order to achieve the above advantages of preventing glue dripping and smoothly transmitting force and discharging glue at a uniform speed, the specific technical solution adopted by the present invention is as follows:

[0007] A rack structure long-stroke propulsion glue gun, which includes a glue gun body, the glue gun body is provided with a glue gun handle, a propulsion rod and a glue gun housing, the propulsion rod passes through the upper end of the glue gun handle, and is provided with a stroke adjustment rod, an unlocking plate, a rack slider, a stroke adjustment nut and a propulsion plate. The bottom of the rack slider is connected to a trigger gear, and the lower side of the trigger gear is connected to a trigger. One end of the stroke adjustment rod is fastened by a stroke adjustment nut, and the other end passes through the rack slider and is inserted in the propulsion plate.

[0008] The end of the push rod near the glue gun handle is connected to a limited position seat, and the other end of the push rod is provided with a cylindrical cavity. The push rod passes through the unlocking piece, the rack slider, and the push piece in sequence and extends into the cylindrical cavity. A roller piece is provided at the front end of the cylindrical cavity.

[0009] Furthermore, one end of the stroke adjustment rod close to the stroke adjustment nut is provided with a thread matching the stroke adjustment nut.

[0010] Furthermore, a limit spring is connected between the unlocking piece and the rack slider, and a slot hole is provided at the upper end of the unlocking piece.

[0011] Furthermore, a through hole is provided on the upper portion of the rack slider, and the stroke adjustment rod is movably connected to the inside of the through hole. A protrusion is provided at one end of the through hole close to the propulsion piece, and the protrusion is fitted with the upper part of the propulsion piece. An unlocking sleeve is also provided inside the rack slider, and a rack is provided on the lower side of the rack slider, and the rack is meshed with the trigger gear.

[0012] Furthermore, the glue gun housing is formed by a main housing and a side housing which are buckled and connected by screws, and a mounting cavity is provided inside the glue gun housing.

[0013] Furthermore, the stroke adjustment nut is provided with an anti-drip glue adjustment knob near the glue gun handle.

[0014] Furthermore, the upper portion of the trigger gear is provided with teeth meshing with the rack of the rack slider, and the trigger gear is connected to the upper portion of the trigger via a connecting shaft.

[0015] Furthermore, the trigger corresponds to the opposite end of the handle, and the surface of the trigger is provided with gripping lines.

[0016] Furthermore, a contraction spring is arranged on the side of the propulsion piece, and the contraction spring is pressed on the right side of the propulsion piece.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a large-stroke propulsion glue gun with a rack structure, which has the following beneficial effects:

[0019] The upper end of the trigger is a gear structure, and there is a rack block on the push rod. The front end of the rack block pushes the push piece, and the push piece bites the push rod and moves forward after tilting to complete the glue squeezing action. 2. The gear and rack structure can keep the lever ratio unchanged during the entire pushing process and transmit force smoothly. The effective meshing of the gear and the rack increases the pushing stroke. Through the stroke adjustment nut, the different front and rear positions of the nut limit the movement stroke of the rack slider, which plays a role in adjusting the amount of glue squeezed, thereby having the advantages of preventing glue dripping and transmitting force smoothly and discharging glue at a uniform speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a front view of the present invention;

[0023] Figure 3 This is the second structural schematic diagram of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the rack slider 6 of the present invention.

[0025] In the figure: glue gun body 1, glue gun handle 2, push rod 3, stroke adjustment rod 4, unlocking piece 5, rack slider 6, stroke adjustment nut 7, trigger gear 8, trigger 9, push piece 10, main housing 11, side housing 12, anti-drip glue adjustment knob 13, roller piece 14, limit seat 31, slot 51, through hole 61, convex point 62, unlocking sleeve 63 DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the present invention, a long-stroke propulsion glue gun with a rack structure is provided.

[0028] The present invention is further described with reference to the accompanying drawings and specific embodiments. Figure 1-4 As shown, a rack structure long-stroke push glue gun according to an embodiment of the present invention comprises a glue gun body 1, the glue gun body 1 is provided with a glue gun handle 2, a push rod 3 and a glue gun housing, the push rod 3 passes through the upper end of the glue gun handle 2, the push rod 3 is provided with a stroke adjustment rod 4, an unlocking piece 5, a rack slider 6, a stroke adjustment nut 7 and a push piece 10, the bottom of the rack slider 6 is connected with a trigger gear 8, the lower side of the trigger gear 8 is connected with a trigger 9, one end of the stroke adjustment rod 4 is fastened and connected through the stroke adjustment nut 7, and the other end passes through the rack slider 6 and is inserted in the push piece 10. The upper end of the trigger 9 is a gear structure, and there is a rack block on the push rod 10. The front end of the rack block pushes the push piece 10, and the push piece 10 bites the push rod 10 after tilting to complete the glue squeezing action. The lever ratio of the entire pushing process can be kept unchanged, and the force can be transmitted smoothly.

[0029] In one embodiment, the end of the push rod 3 near the glue gun handle 2 is connected to a limited position seat 31, and the other end of the push rod 3 is provided with a cylindrical cavity. The push rod 3 passes through the unlocking piece 5, the rack slider 6, and the push piece 10 in sequence and extends into the cylindrical cavity. The front end of the cylindrical cavity is provided with a roller piece 14. The roller piece 14 makes the relative rotation of the glue barrel and the glue gun handle 2 smoother.

[0030] In one embodiment, the end of the stroke adjustment rod 4 close to the stroke adjustment nut 7 is provided with a thread matching the stroke adjustment nut 7. The different front and rear positions of the stroke adjustment nut 7 limit the simulated motion stroke of the rack slider 6, thereby adjusting the amount of glue extrusion.

[0031] In one embodiment, a limit spring is connected between the unlocking piece 5 and the rack slider 6 , and a slot 51 is provided at the upper end of the unlocking piece 5 .

[0032] In one embodiment, a through hole 61 is provided on the upper part of the rack slider 6, and the stroke adjustment rod 4 is movably connected inside the through hole 61. A convex point 62 is provided at one end of the through hole 61 close to the propulsion piece 10, and the convex point 62 is fitted with the upper part of the propulsion piece 10. An unlocking sleeve 63 is also provided inside the rack slider 6, and a rack is provided on the lower side of the rack slider 6, and the rack is meshed with the trigger gear 8. The effective meshing of the gear and the rack increases the propulsion stroke. The unlocking piece 5 pushes the unlocking sleeve 63, and the unlocking sleeve 63 passes through the rack slider 6 and pushes the propulsion piece 10, so that the propulsion piece 10 and the propulsion rod 3 are in a vertical state. At this time, the circular holes of the propulsion piece 10 and the unlocking piece 5 are in a non-engaging state with the propulsion rod 3, and the unlocking is realized, and the propulsion rod 3 can be pulled backward.

[0033] In one embodiment, the glue gun housing is formed by interlocking a main housing 11 and a side housing 12 and connecting them by screws, and a mounting cavity is provided inside the glue gun housing to facilitate the installation of glue gun components.

[0034] In one embodiment, the stroke adjustment nut 7 is provided with an anti-drip adjustment knob 13 near the glue gun handle 2. When the trigger 9 is released, the push rod 3 pushes the rack slider 6 back under the pressure of the front spring, and the glue rod remains stationary or slightly rebounds under the action of the tail limit seat 31. The rebound at this time has the effect of relieving pressure and preventing glue dripping. The adjustment wheel of the unlocking piece 5 at the tail has the effect of changing the rebound stroke.

[0035] In one embodiment, the upper portion of the trigger gear 8 is provided with teeth meshing with the rack of the rack slider 6, and the trigger gear 8 is connected to the upper portion of the trigger 9 via a connecting shaft.

[0036] In one embodiment, the trigger 9 corresponds to the opposite end of the handle 1, and the surface of the trigger 9 is provided with gripping lines.

[0037] In one embodiment, a contraction spring is provided on the side of the propulsion piece 10, and the contraction spring is pressed on the right side of the propulsion piece 10. The propulsion piece 10 is pushed so that the propulsion piece 10 and the propulsion rod 3 are in a vertical state, at which time the propulsion piece 10 and the circular hole of the unlocking piece 5 and the propulsion rod 3 are all in a non-engaging state, unlocking is achieved, and the propulsion rod 3 can be pulled backward.

[0038] Working principle: The upper end of the trigger 9 is a gear structure, and there is a rack block on the push rod 10. The front end of the rack block pushes the push piece 10. After the push piece 10 is tilted, it bites the push rod 10 and moves forward to complete the glue squeezing action. The lever ratio of the entire pushing process can be kept unchanged, and the force is transmitted smoothly. The effective meshing of the gear and the rack increases the pushing stroke. The unlocking piece 5 pushes the unlocking sleeve 63, and the unlocking sleeve 63 passes through the rack slider 6 and pushes the push piece 10, so that the push piece 10 and the push rod 3 are in a vertical state. At this time, the circular holes of the push piece 10 and the unlocking piece 5 are in a non-engaging state with the push rod 3, and unlocking is achieved, and the push rod 3 can be pulled backward.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rack structure long-stroke propelling glue gun, comprising a glue gun body (1), characterized in that: The glue gun body (1) is provided with a glue gun handle (2), a push rod (3) and a glue gun housing. The push rod (3) passes through the upper end of the glue gun handle (2). The push rod (3) is provided with a stroke adjustment rod (4), an unlocking plate (5), a rack slider (6), a stroke adjustment nut (7) and a push plate (10). The bottom of the rack slider (6) is connected to a trigger gear (8), and the lower side of the trigger gear (8) is connected to a trigger (9). One end of the stroke adjustment rod (4) is fastened by the stroke adjustment nut (7), and the other end passes through the rack slider (6) and is inserted into the push plate (10).

2. According to claim 1, a rack structure long-stroke propelling glue gun, characterized in that: The end of the push rod (3) close to the glue gun handle (2) is connected to a limit seat (31), and the other end of the push rod (3) is provided with a cylindrical cavity. The push rod (3) passes through the unlocking piece (5), the rack slider (6), and the push piece (10) in sequence and extends into the cylindrical cavity. A roller piece (14) is provided at the front end of the cylindrical cavity.

3. According to claim 1, a rack structure long-stroke propelling glue gun, characterized in that: One end of the stroke adjustment rod (4) close to the stroke adjustment nut (7) is provided with a thread matching the stroke adjustment nut (7).

4. According to claim 1, a rack structure long-stroke propelling glue gun, characterized in that: A limit spring is connected between the unlocking piece (5) and the rack slider (6), and a slot hole (51) is provided at the upper end of the unlocking piece (5).

5. According to claim 1, a rack structure long-stroke propelling glue gun, characterized in that: A through hole (61) is provided on the upper part of the rack slider (6), and the stroke adjustment rod (4) is movably connected inside the through hole (61). A convex point (62) is provided at one end of the through hole (61) close to the propulsion piece (10), and the convex point (62) is in contact with the upper part of the propulsion piece (10). An unlocking sleeve (63) is also provided inside the rack slider (6), and a rack is provided on the lower side of the rack slider (6), and the rack is meshed with the trigger gear (8).

6. According to claim 1, a rack structure long-stroke propelling glue gun, characterized in that: The glue gun housing is formed by a main housing (11) and a side housing (12) which are interlocked and connected by screws, and a mounting cavity is provided inside the glue gun housing.

7. The rack structure long stroke propelling glue gun according to claim 1, characterized in that: The stroke adjustment nut (7) is provided with an anti-drip glue adjustment knob (13) near the glue gun handle (2).

8. The rack structure long-stroke propelling glue gun according to claim 1, characterized in that: The upper part of the trigger gear (8) is provided with a tooth pattern meshing with the rack of the rack slider (6), and the trigger gear (8) is connected to the upper part of the trigger (9) via a connecting shaft.

9. The rack structure long-stroke propelling glue gun according to claim 1, characterized in that: The trigger (9) corresponds to the opposite end of the handle (1), and the surface of the trigger (9) is provided with gripping lines.

10. The rack structure long stroke propelling glue gun according to claim 1, characterized in that: A contraction spring is arranged on the side of the propulsion piece (10), and the contraction spring is pressed on the right side of the propulsion piece (10).

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