Large-stroke propelling glue gun with rack structure

Abstract

The utility model 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, a stroke adjusting rod, an unlocking piece, a rack sliding block, a stroke adjusting nut and a propelling piece are arranged on the propelling rod, and the rack sliding block is arranged on the rack sliding block. 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 utility model relates to the technical field of computers, in particular to a large-stroke propulsion glue gun with a rack structure. Background Art

[0002] Existing glue gun propulsion mechanisms all use simple lever structures. The short end of the trigger's rotating shaft pushes a metal push block. Limited by the length of the short end, the stroke of the glue gun push block is relatively short, about 13 mm. If the short end lever is longer, the force required to squeeze the glue by gripping the trigger increases, which is more laborious and not conducive to workers squeezing the glue gun with high intensity for long periods of time. The forward stroke of the glue gun is often non-adjustable, and the amount of glue squeezed is controlled entirely by the angle of the trigger, which is inaccurate and prone to over-squeezing glue, resulting in waste. The anti-glue back design of the unlocking metal plate at the tail end of the existing glue gun is generally complex and difficult to adjust. Utility Model Content

[0003] (1) Technical problems solved

[0004] In response to the shortcomings of the existing technology, the utility model provides a rack-structured large-stroke propulsion glue gun, 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 with high intensity for a long time.

[0005] (2) 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 solutions adopted by the utility model are as follows:

[0007] A rack-structured large-stroke propulsion glue gun comprises a glue gun body, the glue gun body being provided with a glue gun handle, a propulsion rod and a glue gun housing, the propulsion rod passing through the upper end of the glue gun handle, the propulsion rod being 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 being connected to a trigger gear, the lower side of the trigger gear being connected to a trigger, one end of the stroke adjustment rod being fastened by a stroke adjustment nut, and the other end passing through the rack slider and being inserted into the propulsion plate.

[0008] The end of the push rod near the glue gun handle is connected to the limited 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 is provided at the upper end of the unlocking piece.

[0011] Furthermore, a through hole is provided on the upper part 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 engaged with the trigger gear.

[0012] Furthermore, the glue gun housing is formed by interlocking a main housing and a side housing and connecting them 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 is located at the opposite end of the handle, and grip lines are provided on the surface of the trigger.

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

[0017] (3) 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 propulsion rod. The front end of the rack block pushes the propulsion piece, and the propulsion piece bites the propulsion rod and moves forward after tilting to complete the glue squeezing action. 2. The gear rack structure can keep the leverage ratio unchanged during the entire propulsion process and transmit force smoothly. The effective engagement of the gear and rack increases the propulsion 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 smooth force transmission and uniform glue discharge. 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 following briefly introduces the drawings required for use in the embodiments. 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 any creative work.

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 It is the main view of the utility model;

[0023] Figure 3 This is the second structural diagram of the present utility model;

[0024] Figure 4 It is a 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 14, limit seat 31, slot 51, through hole 61, bump 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. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the 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 utility model, a rack structure long-stroke propulsion glue gun is provided.

[0028] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figures 1-4 As shown, according to an embodiment of the present invention, a rack-structured, long-stroke propelling glue gun comprises a glue gun body 1, which is provided with a glue gun handle 2, a propelling rod 3, and a glue gun housing. The propelling rod 3 passes through the upper end of the glue gun handle 2 and is provided with a stroke adjustment rod 4, an unlocking plate 5, a rack slider 6, a stroke adjustment nut 7, and a propelling 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 to the stroke adjustment nut 7, and the other end passes through the rack slider 6 and is inserted into the propelling plate 10. The upper end of the trigger 9 is a gear structure, and the propelling rod 10 is provided with a rack block. The front end of the rack block pushes the propelling plate 10. After the propelling plate 10 tilts, it bites the propelling rod 10 and advances, completing the glue squeezing action. This ensures that the leverage ratio remains unchanged throughout the propelling process, and the force is transmitted smoothly.

[0029] In one embodiment, the end of the push rod 3 near the glue gun handle 2 is connected to a limit seat 31. 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 squeezed.

[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 portion of the rack slider 6, and the stroke adjustment rod 4 is movably connected to the inside of the through hole 61. A protrusion 62 is provided at one end of the through hole 61 near the propulsion piece 10, and the protrusion 62 is in contact with the top 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 engaged with the trigger gear 8. The effective engagement 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 unlocking is achieved, 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 travel adjustment nut 7 is equipped with an anti-drip adjustment knob 13 near the glue gun handle 2. When the trigger 9 is released, the propulsion rod 3 pushes the rack slider 6 back under the pressure of the front spring. The glue rod remains stationary or slightly rebounds under the action of the tail stop 31. This rebound relieves pressure and prevents glue dripping. The adjustment wheel of the tail unlocking piece 5 changes 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 is located at the opposite end of the handle 2 , and grip lines are provided on the surface of the trigger 9 .

[0037] In one embodiment, a contraction spring is provided on the side of the propulsion piece 10, and the contraction spring is pressed against 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 perpendicular state. At this time, the propulsion piece 10 and the circular hole of the unlocking piece 5 are all in a non-engaged state with the propulsion rod 3, thus achieving unlocking, 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 propulsion rod 10. The front end of the rack block pushes the propulsion piece 10. After the propulsion piece 10 tilts, it bites the propulsion rod 10 and moves forward, completing the glue squeezing action. This can ensure that the leverage ratio remains unchanged throughout the entire propulsion process, and the force is transmitted smoothly. The effective engagement of the gear and rack increases the propulsion stroke. The unlocking piece 5 pushes the unlocking sleeve 63, which 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 all in a non-engaged state with the propulsion rod 3, achieving unlocking, and the propulsion rod 3 can be pulled backward.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; 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 replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rack-structured long-stroke 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), and 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. The rack-structured long-stroke glue gun according to claim 1, 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. The rack-structured long-stroke glue gun according to claim 1, 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. The rack-structured long-stroke glue gun according to claim 1, 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. The rack structure long stroke propelling glue gun according to claim 1, characterized in that: A through hole (61) is provided on the upper portion of the rack slider (6), and the stroke adjustment rod (4) is movably connected to the inside of 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 portion 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. The rack structure long stroke propelling glue gun according to claim 1, characterized in that: The glue gun housing is formed by interlocking a main housing (11) and a side housing (12) and connecting them via screws, and a mounting cavity is provided inside the glue gun housing.

7. The rack-structured 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-structured long-stroke glue gun according to claim 1, characterized in that: The upper portion of the trigger gear (8) is provided with tooth patterns that mesh 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.

9. The rack-structured long-stroke glue gun according to claim 1, characterized in that: The trigger (9) corresponds to the opposite end of the handle (2), 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 provided 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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