A hand-held glue gun structure

Abstract

This utility model discloses a manual glue gun structure, relating to the field of glue guns. It solves the problem that existing devices are difficult to flexibly rotate the glue inlet tube to perform efficient glue dispensing in different environments according to requirements. The solution is as follows: it includes a first housing and a second housing on its top side. The inner side of the second housing is equipped with a gun body and a gun needle on its front side. The inner side of the first housing is equipped with a heating cylinder. A wiring terminal is fixedly installed at the bottom of the first housing, and the heating cylinder is fixedly connected to the glue inlet tube and wire harness through the wiring terminal. This manual glue gun structure, through the setting of the components at the top of the heating cylinder inside the first housing, facilitates the free rotation of the heating cylinder in conjunction with the limiting steel ball, rotary joint, and connector seat. Simultaneously, it can drive the glue inlet tube and wire harness connected to the bottom to rotate freely, which allows for flexible adjustment of the glue inlet tube and wire harness position in complex and diverse glue dispensing scenarios, thereby ensuring the convenience and efficiency of glue dispensing operations.

Description

Technical Field

[0001] This utility model relates to the field of glue gun technology, specifically a manual glue gun structure. Background Technology

[0002] A manual glue gun is a tool used for precise control of the application of glue, sealant, or other adhesives. It is widely used in construction, decoration, automotive repair, handicrafts, and other fields.

[0003] A search revealed that patent application number 201920519347.5 discloses a labor-saving structure device for a manual glue gun. This device includes a housing; a middle limiting plate and a lower limiting plate, both fixedly connected within the housing; two push rods slidably connected to the housing; a front spring and a rear spring slidably sleeved on the two push rods; and a driving iron plate and a resistance iron plate slidably disposed on the two push rods. The front spring's two ends abut against the inner wall of the housing and the driving iron plate, respectively, while the rear spring's two ends abut against the middle limiting plate and the resistance iron plate, respectively. The driving iron plate is located between the front spring and the middle limiting plate. This invention allows for pressure relief simply by pushing the rear resistance iron plate to a vertical position. A pressure-relieving component is located behind the resistance iron plate; when the pressure-relieving button is pressed, the arched pressure-relieving block moves forward, thereby pushing the resistance iron plate to a vertical position and releasing the locking state of the push rods.

[0004] Currently, the glue guns described in the aforementioned application documents have successfully achieved labor-saving glue application through the ingenious design of their components. However, in practical applications, the positions of the existing glue inlet tube and wiring harness are fixed to ensure the glue dispensing effect. This fixed design greatly limits the adaptability of the glue gun to different glue application environments. In complex and diverse glue application scenarios, the inability to flexibly adjust the positions of the glue inlet tube and wiring harness severely affects the convenience and efficiency of glue application. Simultaneous glue dispensing and air dispensing leads to uneven and unstable spiral glue dispensing. Therefore, how to allow the glue inlet tube and wiring harness to rotate freely and provide uniform and stable spiral glue dispensing to adapt to various glue application environments has become a key problem that urgently needs to be solved in this field.

[0005] Therefore, we propose a manual glue gun structure. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a manual glue gun structure that solves the problem that existing devices are unable to flexibly rotate the glue inlet tube to perform efficient glue application in different environments according to requirements.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a manual glue gun structure, including a first housing and a second housing on its top side, wherein the inner side of the second housing is equipped with a gun body and a gun needle on its front side;

[0008] A heating cylinder is assembled on the inner side of the first housing, and a wiring terminal is fixedly installed at the bottom of the first housing. The heating cylinder is fixedly connected to the glue inlet tube and the wire harness through the wiring terminal.

[0009] A rotary joint is fixedly installed on the top of the heating cylinder. A limiting steel ball is fitted on the rotary joint. A connector seat is fitted on the rotary joint through the limiting steel ball. A retaining ring is installed on the connector seat. The heating cylinder is rotatably connected to the bottom side of the gun body through the rotary joint, the connector seat, and the limiting steel ball.

[0010] As a preferred embodiment of this utility model, an end seat is fixedly installed at the tail end inside the second housing, and a compression spring is assembled between the end seat and the gun body.

[0011] The compression spring design facilitates the automatic reset of the gun body and the gun needle on its front side after the glue is removed, ensuring practicality.

[0012] As a preferred embodiment of this utility model, the inner side of the heating cylinder is provided with a glue guiding channel, and the inner side of the heating cylinder is equipped with heating tubes and thermocouples that are positioned opposite each other.

[0013] The heating element and thermocouple are designed to heat the adhesive inside the heating cylinder and into the adhesive channel, ensuring the adhesive pouring effect.

[0014] As a preferred embodiment of this utility model, the top end of the rotary joint is provided with a groove, a plug seal is press-fitted in the groove, and a limiting steel ball is assembled on the plug seal.

[0015] The design of the sealing ring and the groove on the rotary joint facilitates the pressing of the limiting steel ball from the bottom side, ensuring the stability of the limiting steel ball during rotation.

[0016] As a preferred embodiment of this utility model, a sealing groove is provided on the inner side of the bottom end of the connector seat, a sealing ring is press-fitted in the sealing groove, and a limiting steel ball located between the sealing ring and the plug seal is press-fitted between the rotary joint and the connector seat.

[0017] The connector seat and its bottom sealing ring are designed to facilitate the pressing of the limiting steel ball from the top, so that the heating cylinder can drive the bottom glue inlet tube and wire harness to rotate freely.

[0018] As a preferred embodiment of this utility model, a pointed nozzle is fixedly installed at the front end of the gun needle component;

[0019] The nozzle design facilitates the spraying of columnar colloids.

[0020] As a preferred embodiment of this utility model, a ten-hole spray plate is fixedly installed at the front end of the gun needle component, and ten sets of spray holes are opened on the ten-hole spray plate.

[0021] The ten-hole spray nozzle design facilitates efficient glue application when combined with the nozzle settings.

[0022] As a preferred embodiment of this utility model, a micro switch is also provided in the gun body, and a spring seat, a spring column and a switch pin are sequentially assembled on the front side of the micro switch;

[0023] Among them, the micro switch can turn on the air of the glue gun in advance. If the glue is released first, the glue will be sprayed in clumps and uneven. However, if the air is released first and then the glue is released, the airflow will drive the glue to spray out in a spiral, ensuring the glue spraying effect.

[0024] This utility model provides a manual glue gun structure. It has the following beneficial effects:

[0025] 1. The manual glue gun structure, through the setting of various components at the top of the heating cylinder inside the first housing, facilitates the free rotation of the heating cylinder in conjunction with the limiting steel ball, rotary joint and connector seat. Simultaneously, it can drive the glue inlet tube and wire harness connected to the bottom to rotate freely, so as to flexibly adjust the position of the glue inlet tube and wire harness in complex and diverse glue application scenarios, thereby ensuring the convenience and efficiency of glue application operations. It solves the problem that existing devices are difficult to flexibly rotate the glue inlet tube to perform corresponding efficient glue application in different environments according to the needs.

[0026] 2. This manual glue gun structure, through the setting of a micro switch, can release air in advance, ensuring that the sprayed glue is spiral-shaped rather than unevenly lumpy, thus solving the problem of uneven glue spraying by existing glue guns. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the heating cylinder of this utility model.

[0030] In the diagram: 1. First housing; 2. Second housing; 3. Heating cylinder; 4. Terminal block; 5. Rotary joint; 6. Limiting steel ball; 7. Connector seat; 8. Retaining ring; 9. Gun body; 10. Gun needle; 11. Compression spring; 12. Ten-hole spray plate; 13. Sealing ring; 14. Plug seal; 15. Nozzle; 16. Heating element; 17. Thermocouple; 18. Switch pin; 19. Spring post; 20. Spring seat; 21. Micro switch. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-3 This utility model provides a technical solution: a manual glue gun structure, including a first housing 1 and a second housing 2 on its top side. The inner side of the second housing 2 is equipped with a gun body 9 and a gun needle 10 on its front side. The inner side of the first housing 1 is equipped with a heating cylinder 3. A terminal block 4 is fixedly installed at the bottom end of the first housing 1, and the heating cylinder 3 is fixedly connected to a glue inlet tube and a wire harness through the terminal block 4. A rotary joint 5 is fixedly installed at the top of the heating cylinder 3. A limiting steel ball 6 is installed on the rotary joint 5. A connector seat 7 is installed on the rotary joint 5 through the limiting steel ball 6. A retaining ring 8 is installed on the connector seat 7. The heating cylinder 3 is rotatably connected to the bottom side of the gun body 9 through the rotary joint 5, the connector seat 7, and the limiting steel ball 6. A ten-hole spray plate 12 is fixedly installed at the front end of the gun needle 10, and ten sets of spray holes are opened on the ten-hole spray plate 12. The setting of the ten-hole spray plate 12 is convenient to cooperate with the setting of the spray holes to achieve a high-efficiency glue spraying effect.

[0033] The manual glue gun structure, through the arrangement of various components at the top of the heating cylinder 3 inside the first housing 1, facilitates the free rotation of the heating cylinder 3 in conjunction with the limiting steel ball 6, the rotary joint 5, and the joint seat 7. Simultaneously, it can drive the glue inlet tube and the wiring harness connected to the bottom to rotate freely, so as to flexibly adjust the position of the glue inlet tube and the wiring harness in complex and diverse glue application scenarios. This ensures the convenience and efficiency of glue application operations and solves the problem that existing devices are difficult to flexibly rotate the glue inlet tube to perform corresponding efficient glue application in different environments according to requirements.

[0034] Example 2:

[0035] An end seat is fixedly installed at the tail end inside the second housing 2, and a compression spring 11 is assembled between the end seat and the gun body 9; wherein, the compression spring 11 is set to facilitate the automatic reset of the gun body 9 and the gun needle 10 on its front side after the glue is removed, thus ensuring practicality.

[0036] The heating cylinder 3 has a glue guiding channel on its inner side, and heating tubes 16 and thermocouples 17 are mounted on the inner side of the heating cylinder 3 with their left and right positions opposite each other. The arrangement of heating tubes 16 and thermocouples 17 facilitates the heating of the glue in the glue guiding channel from the inner side of the heating cylinder 3, ensuring the glue pouring effect.

[0037] The top of the rotary joint 5 is provided with a groove, in which a plug seal 14 is press-fitted, and a limiting steel ball 6 is mounted on the plug seal 14; wherein, the setting of the plug seal 14 and the groove on the rotary joint 5 facilitates the pressing of the limiting steel ball 6 from the bottom side, ensuring the stability of the limiting steel ball 6 when rotating.

[0038] A sealing groove is provided on the inner side of the bottom end of the connector seat 7, and a sealing ring 13 is press-fitted in the sealing groove. A limiting steel ball 6 is press-fitted between the rotary joint 5 and the connector seat 7, located between the sealing ring 13 and the plug seal 14. The connection of the connector seat 7 and its bottom sealing ring 13 facilitates the pressing of the limiting steel ball 6 from the top side, so that the heating cylinder 3 can drive the bottom glue inlet tube and wire harness to rotate freely.

[0039] The front end of the needle component 10 is fixedly equipped with a pointed nozzle 15; wherein, the nozzle 15 is designed to facilitate the spraying of columnar colloid.

[0040] The gun body is also equipped with a micro switch 21. The front side of the micro switch 21 is sequentially equipped with a spring seat 20, a spring post 19 and a switch pin 18. The micro switch 21 can turn on the air of the glue gun in advance. If the glue is released first, the glue will be sprayed in a clump and the glue will be uneven. However, if the air is released first and then the glue is released, the air flow can drive the glue to be sprayed in a spiral shape, which can ensure the glue spraying effect.

[0041] The working principle and usage process of this utility model are as follows: When the device is required to work, the glue inlet tube and the wire harness are fixedly connected to the bottom end of the terminal 4 by the terminal 4, which then injects glue into the heating cylinder 3 inside the first housing 1. With the rotation assembly of the rotating joint 5, the limiting steel ball 6 and the joint seat 7 at the top of the heating cylinder 3, the corresponding rotation of the glue tube can be flexibly adjusted, so that the glue inlet tube can be flexibly rotated in different environments according to the needs to perform corresponding efficient glue dispensing.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hand-held glue gun structure, characterized by: It includes a first housing (1) and a second housing (2) on its top side, wherein the inner side of the second housing (2) is fitted with a gun body (9) and a gun needle (10) on its front side; A heating cylinder (3) is assembled on the inner side of the first housing (1), and a wiring terminal (4) is fixedly installed at the bottom end of the first housing (1). The heating cylinder (3) is fixedly connected to the glue inlet tube and wire harness through the wiring terminal (4). A rotary joint (5) is fixedly installed on the top of the heating cylinder (3). A limiting steel ball (6) is mounted on the rotary joint (5). A connector seat (7) is mounted on the rotary joint (5) through the limiting steel ball (6). A retaining ring (8) is installed on the connector seat (7). The heating cylinder (3) is rotatably connected to the bottom side of the gun body (9) through the rotary joint (5), the connector seat (7) and the limiting steel ball (6).

2. The structure of a manual glue gun according to claim 1, characterized in that: An end seat is fixedly installed on the tail end inside the second housing (2), and a compression spring (11) is assembled between the end seat and the gun body (9).

3. The structure of a manual glue gun according to claim 1, characterized in that: The heating cylinder (3) has an adhesive channel on its inner side, and heating tubes (16) and thermocouples (17) are mounted on the inner side of the heating cylinder (3) with their left and right positions opposite each other.

4. The structure of a manual glue gun according to claim 1, characterized in that: The top of the rotary joint (5) is provided with a groove, in which a plug seal (14) is press-fitted, and a limiting steel ball (6) is assembled on the plug seal (14).

5. The manual glue gun structure according to claim 4, characterized in that: A sealing groove is provided on the inner side of the bottom end of the connector seat (7), a sealing ring (13) is press-fitted in the sealing groove, and a limiting steel ball (6) located between the sealing ring (13) and the plug seal (14) is press-fitted between the rotary joint (5) and the connector seat (7).

6. The manual glue gun structure according to claim 1, characterized in that: The front end of the gun needle (10) is fixedly fitted with a pointed nozzle (15).

7. The manual glue gun structure according to claim 1, characterized in that: The front end of the gun needle component (10) is fixedly installed with a ten-hole spray plate (12), and the ten-hole spray plate (12) has ten sets of spray holes.

8. The manual glue gun structure according to claim 1, characterized in that: The gun body (9) is also provided with a micro switch (21), and the front side of the micro switch (21) is sequentially equipped with a spring seat (20), a spring post (19) and a switch pin (18).

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