Improved glue gun
By setting a rear limit part and an adjusting nut on the thrust plate of the glue gun, the displacement of the thrust spring is limited, which solves the problem of noise and damage caused by friction between the thrust spring and the thrust plate, and achieves the effects of low noise and surface protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU YIXU HARDWARE TOOLS CO LTD
- Filing Date
- 2025-07-12
- Publication Date
- 2026-06-23
AI Technical Summary
During use, existing glue guns cause excessive noise and damage to the surface due to friction between the rear end of the thrust spring and the thrust plate.
A rear limiting part is set on the thrust plate to restrict the lateral displacement of the rear end of the thrust spring. The friction between the thrust spring and the thrust plate is prevented by a convex ring or annular groove structure. The front and rear end displacement of the thrust spring is restricted by the adjusting nut.
It effectively reduces noise during the use of the glue gun and reduces frictional damage to the gun body or thrust plate surface caused by the thrust spring.
Smart Images
Figure CN224389225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to glue guns, and more particularly to an improved glue gun. Background Technology
[0002] Sealant guns are a common tool for applying sealant. Currently, most sealant guns on the market have their thrust spring's rear end directly abutting against a stop plate. When the user presses the trigger, the rear end of the thrust spring displaces significantly as the stop plate moves, causing friction and noise, and damaging the surface of the stop plate. A solution to these problems is urgently needed. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide an improved glue gun with low noise.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] An improved glue gun includes a gun body, a trigger, a glue cartridge, a thrust plate, a thrust spring, and a push rod; wherein, the glue cartridge is installed at the front end of the gun body; the push rod passes through the gun body and the glue cartridge; the thrust spring and the thrust plate are sequentially sleeved on the push rod; the front end of the thrust spring abuts against the gun body, and the rear end of the thrust spring abuts against the thrust plate; the trigger is hinged to the gun body and is used to drive the thrust plate to move the push rod forward when swinging; the thrust plate is provided with a rear limiting part for limiting the lateral displacement of the rear end of the thrust spring relative to the thrust plate.
[0006] Preferably, the rear limiting portion includes a convex ring disposed on the thrust plate, and the rear end of the thrust spring is sleeved on the outside of the convex ring or extends into the inside of the convex ring.
[0007] Preferably, the convex ring and the thrust plate are integrally formed.
[0008] Preferably, the convex ring and the thrust plate are separate components.
[0009] Preferably, the surface of the thrust plate is provided with an annular groove that matches the convex ring, and the convex ring is placed in the annular groove and protrudes out of the annular groove.
[0010] Preferably, the convex ring is made of plastic or metal.
[0011] Preferably, the gun body is further provided with a front limiting part that limits the lateral displacement of the front end of the thrust spring relative to the gun body.
[0012] Preferably, the gun body has a first threaded groove, and an adjusting nut is threadedly connected in the first threaded groove. The adjusting nut is located on the front side of the thrust plate, and the adjusting nut moves away from or closer to the thrust plate when rotating relative to the gun body. A through hole for the push rod to pass through is provided in the middle of the adjusting nut along the front-back direction. The front end of the thrust spring passes through the through hole and abuts against the bottom of the first threaded groove.
[0013] The main technical effects of this utility model are reflected in the following aspects:
[0014] Restriction structures are set at the front and rear ends of the thrust spring to effectively prevent the thrust spring from moving, thereby reducing the noise of the glue gun during use; at the same time, it also reduces the friction between the end of the thrust spring and the surface of the gun body or thrust plate. Attached Figure Description
[0015] Figure 1 This is a structural diagram of the improved glue gun in the embodiment;
[0016] Figure 2 This is a partial cross-sectional view of the improved glue gun in the embodiment;
[0017] Figure 3 This is a schematic diagram of the assembly of the thrust plate and the thrust spring in the embodiment. Figure 1 ;
[0018] Figure 4 This is a schematic diagram of the assembly of the thrust plate and the thrust spring in the embodiment. Figure 2 ;
[0019] Figure 5 This is a schematic diagram of the assembly of the thrust plate and the thrust spring in the embodiment. Figure 3 ;
[0020] Figure 6 This is a schematic diagram of the assembly of the thrust plate and the thrust spring in the embodiment. Figure 4 .
[0021] Reference numerals: 1. Gun body; 11. Main body; 111. Inner cavity; 112. First threaded groove; 12. Handle; 2. Trigger; 3. Rubber sleeve; 31. Mounting retaining ring; 4. Thrust plate; 41. Protruding ring; 42. Ring groove; 5. Thrust spring; 6. Push rod; 7. Front nut seat; 71. Second threaded groove; 72. Pressure ring; 8. Adjusting nut. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.
[0023] Reference Figure 1This embodiment aims to provide an improved glue gun, including a gun body 1, a trigger 2, a glue cartridge 3, a thrust plate 4, a thrust spring 5, and a push rod 6. The gun body 1 includes a main body 11 with a handle 12 and a front nut seat 7. The main body 11 has an inner cavity 111 through which the push rod 6 passes. The front end of the main body 11 has a second threaded groove 71, which communicates with the inner cavity 111. The front nut seat 7 is threaded into the second threaded groove 71. The middle of the front nut seat 7 has a rod hole through which the push rod 6 passes in the front-to-back direction. The rear end of the glue cartridge 3 has a mounting ring 31, and the front nut seat 7 has a pressure ring 72. The front nut seat 7 passes through the mounting ring 31 and connects to the second threaded groove 71, and the pressure ring 72 presses the mounting ring 31 against the front end of the main body 11.
[0024] The thrust spring 5 and the thrust plate 4 are sequentially arranged in the inner cavity 111 and sleeved on the push rod 6.
[0025] The rear end of the front nut seat 7 has a second threaded groove 71, and an adjusting nut 8 is internally threaded into the second threaded groove 71. The adjusting nut 8 is placed in the inner cavity 111 and located on the front side of the thrust plate 4. When the adjusting nut 8 rotates relative to the gun body 1, it moves away from or closer to the thrust plate 4. By placing the adjusting nut 8 on the front side of the push plate, not only can the amount of glue dispensed be adjusted, but when the adjusting nut 8 is retracted to its maximum distance, it can lock the push plate, achieving a locking effect, at which point the trigger 2 cannot be pulled. At the same time, a through hole is provided in the middle of the adjusting nut 8 along the front-rear direction for the push rod 6 to pass through. The front end of the thrust spring 5 passes through the through hole and abuts against the bottom of the second threaded groove 71.
[0026] The aforementioned adjusting nut 8 can not only adjust the amount of glue dispensed, but also limit the lateral displacement of the front end of the thrust spring 5.
[0027] The trigger 2 is hinged to the gun body 1 and is used to drive the thrust plate 4 to move the push rod 6 forward when swinging. The functional principle of the trigger 2 structure belongs to the prior art and will not be described in detail in this application.
[0028] The rear end of the thrust spring 5 abuts against the thrust plate 4, and the thrust plate 4 is provided with a rear limiting part for limiting the lateral displacement of the rear end of the thrust spring 5 relative to the thrust plate 4. The rear limiting part includes a protruding ring 41 disposed on the thrust plate 4. The structure of the protruding ring 41 will be described in detail in this embodiment.
[0029] Figure 3 The diagram illustrates the first structural form of the convex ring 41: the convex ring 41 is integrally formed on the thrust plate 4, and the outer diameter of the convex ring 41 is approximately equal to or close to the inner diameter of the thrust spring 5, while the rear end of the thrust spring 5 is sleeved on the outer side of the convex ring 41.
[0030] Figure 4The diagram illustrates a second structural form of the convex ring 41: the convex ring 41 is integrally formed on the thrust plate 4, and the inner diameter of the convex ring 41 is approximately equal to or close to the outer diameter of the thrust spring 5, while the rear end of the thrust spring 5 extends into the inner side of the convex ring 41.
[0031] Figure 5 The diagram illustrates a third structural form of the convex ring 41: the convex ring 41 and the thrust plate 4 are separately configured. Specifically, the surface of the thrust plate 4 is provided with an annular groove 42 that fits the convex ring 41, and the convex ring 41 is placed in the annular groove 42 and protrudes from the annular groove 42. In this case, the outer diameter of the convex ring 41 is approximately equal to or close to the inner diameter of the thrust spring 5, and the rear end of the thrust spring 5 is sleeved on the outer side of the convex ring 41.
[0032] Figure 6 The diagram illustrates a fourth structural form of the convex ring 41: the convex ring 41 and the thrust plate 4 are separately configured. Specifically, the surface of the thrust plate 4 is provided with an annular groove 42 that fits the convex ring 41, and the convex ring 41 is placed in the annular groove 42 and protrudes from the annular groove 42. In this case, the inner diameter of the convex ring 41 is approximately equal to or close to the outer diameter of the thrust spring 5, and the rear end of the thrust spring 5 extends into the inner side of the convex ring 41.
[0033] The aforementioned protruding ring 41 is made of plastic or metal. Therefore, all four structural forms of the aforementioned protruding ring 41 can restrict the rear end of the thrust spring 5 and prevent it from laterally displacing from the thrust plate 4.
[0034] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. An improved glue gun, comprising a gun body (1), a trigger (2), a glue cartridge (3), a thrust plate (4), a thrust spring (5), and a push rod (6); wherein, The rubber sleeve (3) is installed at the front end of the gun body (1); the push rod (6) passes through the gun body (1) and the rubber sleeve (3); the thrust spring (5) and the thrust plate (4) are sequentially sleeved on the push rod (6); the front end of the thrust spring (5) abuts against the gun body (1), and the rear end of the thrust spring (5) abuts against the thrust plate (4); the trigger (2) is hinged to the gun body (1) and is used to drive the thrust plate (4) to move the push rod (6) forward when swinging; characterized in that the thrust plate (4) is provided with a rear limiting part for limiting the lateral displacement of the rear end of the thrust spring (5) relative to the thrust plate (4).
2. The improved glue gun according to claim 1, characterized in that, The rear limiting part includes a convex ring (41) disposed on the thrust plate (4), and the rear end of the thrust spring (5) is sleeved on the outside of the convex ring (41) or extends into the inside of the convex ring (41).
3. An improved glue gun according to claim 2, characterized in that, The convex ring (41) and the thrust plate (4) are integrally formed.
4. An improved glue gun according to claim 2, characterized in that, The convex ring (41) and the thrust plate (4) are set separately.
5. An improved glue gun according to claim 4, characterized in that, The surface of the thrust plate (4) is provided with an annular groove (42) that is adapted to the convex ring (41). The convex ring (41) is placed in the annular groove (42) and protrudes out of the annular groove (42).
6. An improved glue gun according to claim 3, characterized in that, The convex ring (41) is made of plastic or metal.
7. An improved glue gun according to claim 1, characterized in that, The gun body (1) is also provided with a front limiting part that limits the lateral displacement of the front end of the thrust spring relative to the gun body (1).
8. An improved glue gun according to claim 7, characterized in that, The gun body (1) has a first threaded groove (112), and an adjusting nut (8) is threadedly connected to the first threaded groove (112). The adjusting nut (8) is located on the front side of the thrust plate (4), and the adjusting nut (8) moves away from or closer to the thrust plate (4) when rotating relative to the gun body (1). A through hole for the push rod (6) is provided through the middle of the adjusting nut (8) in the front-back direction. The front end of the thrust spring (5) passes through the through hole and abuts against the bottom of the first threaded groove (112).