Hot melt glue gun device

Abstract

The utility model discloses a hot melt glue gun device and belongs to the technical field of hot melt glue guns, the hot melt glue gun device comprises a hot melt glue gun main body and a charging base, the hot melt glue gun main body comprises a shell and a tail cover connected to the tail end of the shell, first metal sheets are arranged on the surface of the bottom of the tail cover, and tower-shaped springs are arranged on the first metal sheets; the two ends of the tower-shaped spring are connected with a first metal sheet and a circuit board arranged in the tail end of the shell respectively, the charging base is provided with a charging part, a limiting groove is formed in the surface of the charging part and matched with the tail cover, a second metal sheet matched with the first metal sheet is arranged on the surface of the limiting groove, and the tail cover can be inserted into the limiting groove. According to the utility model, the tower-shaped spring is arranged on the first metal sheet, so that the elastic force generated by the spring is reduced, the hot melt glue gun body is ensured not to be jacked up by the elastic force, the hot melt glue gun body is enabled to be in better contact with the charging base, and poor contact during charging is prevented; and enough charging current is ensured to pass through.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot melt glue guns, and more specifically relates to a hot melt glue gun device. Background Art

[0002] Hot melt glue guns are commonly used hardware tools on the market. During the charging process, when the hot melt glue gun is placed on the charging base, the first hardware piece on the tail cover of the hot melt glue gun and the second hardware piece on the charging base are directly welded to their respective charging parts (PCBA). The first hardware piece and the second hardware piece are rigidly connected. Due to a slight tilt of the glue gun or an uneven gap between the two hardware pieces, the first hardware piece and the second hardware piece may have poor contact, affecting the charging efficiency or even failing to charge. Utility Model Content

[0003] The main purpose of the utility model is to provide a hot melt glue gun device to solve the problems raised in the above background technology.

[0004] According to a first aspect of the utility model, a hot melt glue gun device is provided, comprising a hot melt glue gun body and a charging base, the hot melt glue gun body comprising a shell and a tail cover connected to the rear end of the shell, a plurality of first metal sheets are arranged on the bottom surface of the tail cover, a plurality of first metal sheets are provided on each of the first metal sheets, two ends of the tower-shaped spring are respectively connected to the first metal sheet and a circuit board arranged in the rear end of the shell, the charging base is provided with a charging part, a limiting groove is provided on the surface of the charging part, the limiting groove is matched with the tail cover, a second metal sheet matched with the first metal sheet is provided on the surface of the limiting groove, and the tail cover can be inserted into the limiting groove so that the first metal sheet and the second metal sheet are in contact for charging.

[0005] In a specific embodiment of the present invention, the conical spring is made of phosphor bronze.

[0006] In a specific embodiment of the present invention, the inner surface of the first metal sheet is concave to form a groove, and the outer surface of the first metal sheet forms an arc-shaped structure.

[0007] In a specific embodiment of the utility model, one end of the tower-shaped spring is a large outer diameter end, and the other end of the tower-shaped spring is a small outer diameter end, the large outer diameter end is connected to the circuit board, and the small outer diameter end is stuck in the groove.

[0008] In a specific embodiment of the present invention, a through hole is provided on the circuit board, and the large outer diameter end of the conical spring passes through the through hole.

[0009] In a specific embodiment of the present invention, a pressure block is arranged in the tail cover, and the pressure block is fixed in the tail cover by bolts and presses the circuit board.

[0010] In a specific embodiment of the present invention, a non-slip pad is provided at the bottom of the charging base.

[0011] In a specific embodiment of the present invention, the surface of the second metal sheet protrudes from the surface of the limiting groove.

[0012] In a specific embodiment of the present invention, the protruding distance of the surface of the second metal sheet is smaller than the depth of the limiting groove.

[0013] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0014] This hot melt glue gun device installs a tower-shaped spring on the first metal sheet to reduce the elastic force generated by the spring, while ensuring that the elastic force will not lift up the hot melt glue gun body, so that the hot melt glue gun body can better contact with the charging base, thereby allowing the first metal sheet to contact with the second metal sheet, and the hot melt glue gun body can be charged. The hot melt glue gun device will not be lifted up, preventing poor contact during charging, and effectively ensuring that sufficient charging current passes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 It is a structural schematic diagram of a hot melt glue gun device in one embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the charging part of the charging base in one embodiment of the utility model;

[0018] Figure 3 is a cross-sectional view of a charging portion of a charging base in one embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the tail cover in one embodiment of the utility model;

[0020] Figure 5 It is a cross-sectional view of a tail cover in one embodiment of the utility model. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0026] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0027] Reference Figures 1 to 5As shown, a hot melt glue gun device is provided, including a hot melt glue gun body 1 and a charging base 2, the hot melt glue gun body 1 includes a shell 11 and a tail cover 12 connected to the rear end of the shell 11, a plurality of first metal sheets 121 are arranged on the bottom surface of the tail cover 12, a tower-shaped spring 3 is arranged on each of the plurality of first metal sheets 121, two ends of the tower-shaped spring 3 are respectively connected to the first metal sheet 121 and a circuit board 14 arranged in the rear end of the shell 11, the charging base 2 is provided with a charging part 21, a limiting groove 211 is provided on the surface of the charging part 21, the limiting groove 211 is matched with the tail cover 12, a second metal sheet 212 matched with the first metal sheet 121 is arranged on the surface of the limiting groove 211, and the tail cover 12 can be inserted into the limiting groove 211 so that the first metal sheet 121 and the second metal sheet 212 are in contact with each other for charging.

[0028] In this embodiment, a first metal sheet 121 is installed on the tail cover 12, and a tower-shaped spring 3 is used on the first metal sheet 121 to connect with the circuit board 14. The first metal sheet 121 contacts the second metal sheet 212 of the charging base 2 for charging. The tower-shaped spring 3 has a larger outer diameter at one end and a smaller outer diameter at the other end, which causes the elastic force of the tower-shaped spring 3 to be weakened, thereby preventing the glue gun from being lifted up and causing poor contact. Such a tower-shaped spring 3 effectively ensures that sufficient charging current passes through to prevent poor contact.

[0029] In one embodiment of the utility model, the tower-shaped spring 3 is made of phosphor bronze. The tower-shaped spring 3 made of phosphor bronze has better conductivity than the tower-shaped spring made of spring steel. In addition, phosphor bronze is soft and has only one tenth of the elastic force of an equivalent steel spring, which can better prevent the glue gun from being lifted up.

[0030] Preferably, the tower spring 3 is made of 0.5 mm phosphor copper wire, which can better prevent the glue gun from being lifted up and enhance the contact effect, effectively ensuring that sufficient charging current passes.

[0031] In one embodiment of the utility model, the inner surface of the first metal sheet 121 is recessed to form a groove 1211, and the outer surface of the first metal sheet forms an arc-shaped structure. The tower-shaped spring 3 is placed in the groove 1211 to contact the first metal sheet 121. The other end of the tower-shaped spring 3 is connected to the circuit board 14 to transmit the charging current to the circuit board 14, and then transmit it to the battery after processing, so that charging can be performed. The inner surface of the first metal sheet 121 on the tail cover 12 is made into a groove 1211, and the outer surface is made into an arc shape, and a tower-shaped spring 3 is added in the groove 1211 of the first metal sheet 121, so that the first metal sheet 121 on the tail cover 12 and the second metal sheet 212 on the charging base are flexibly connected. Preferably, the first metal sheet 121 is made of copper for better conductivity.

[0032] In one embodiment of the utility model, one end of the tower-shaped spring 3 is a large outer diameter end, and the other end of the tower-shaped spring 3 is a small outer diameter end. The large outer diameter end is connected to the circuit board 14, and the small outer diameter end is stuck in the groove 1211.

[0033] Furthermore, a through hole 141 is provided on the circuit board 14, and the large outer diameter end of the tower-shaped spring 3 passes through the through hole 141, so as to facilitate contact with the battery.

[0034] In one embodiment of the utility model, a pressure block 13 is provided in the tail cover 12, and the pressure block 13 is fixed in the tail cover 12 by bolts and presses the circuit board 14, so that the circuit board 14 is in better contact with the tower spring 3, preventing the circuit board 14 from being bounced off.

[0035] In one embodiment of the utility model, a non-slip pad 22 is provided at the bottom of the charging base 2 to fix the charging base 2 to prevent movement during charging.

[0036] In one embodiment of the utility model, the surface of the second metal sheet 212 protrudes from the surface of the limiting groove 211. Preferably, the protruding distance of the surface of the second metal sheet 212 is less than the depth of the limiting groove 211, which can prevent external objects from connecting between the second metal sheets 212 and causing a short circuit.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hot melt glue gun device, comprising a hot melt glue gun body (1) and a charging base (2), characterized in that: The hot melt glue gun body (1) comprises a shell (11) and a tail cover (12) connected to the rear end of the shell (11); a plurality of first metal sheets (121) are arranged on the bottom surface of the tail cover (12); a plurality of first metal sheets (121) are each provided with a tower-shaped spring (3); two ends of the tower-shaped spring (3) are respectively connected to the first metal sheet (121) and a circuit board (14) arranged in the rear end of the shell (11); the charging base (2) is provided with a charging part (21); a limiting groove (211) is provided on the surface of the charging part (21); the limiting groove (211) is matched with the tail cover (12); a second metal sheet (212) matched with the first metal sheet (121) is provided on the surface of the limiting groove (211); the tail cover (12) can be inserted into the limiting groove (211) so that the first metal sheet (121) and the second metal sheet (212) are in contact with each other for charging.

2. The hot melt glue gun device according to claim 1, characterized in that: The material of the conical spring (3) is phosphor bronze.

3. The hot melt glue gun device according to claim 1, characterized in that: The inner surface of the first metal sheet (121) is recessed to form a groove (1211), and the outer surface of the first metal sheet (121) forms an arc-shaped structure.

4. The hot melt glue gun device according to claim 3, characterized in that: One end of the tower-shaped spring (3) is a large outer diameter end, and the other end of the tower-shaped spring (3) is a small outer diameter end. The large outer diameter end is connected to the circuit board (14), and the small outer diameter end is inserted into the groove (1211).

5. The hot melt glue gun device according to claim 4, characterized in that: The circuit board (14) is provided with a through hole (141), and the large outer diameter end of the tower-shaped spring (3) passes through the through hole (141).

6. The hot melt glue gun device according to claim 1, characterized in that: A pressing block (13) is arranged inside the tail cover (12); the pressing block (13) is fixed inside the tail cover (12) by means of bolts and presses the circuit board (14).

7. The hot melt glue gun device according to claim 1, characterized in that: An anti-slip pad (22) is provided at the bottom of the charging base (2).

8. The hot melt glue gun device according to claim 1, characterized in that: The surface of the second metal sheet (212) protrudes from the surface of the limiting groove (211).

9. The hot melt glue gun device according to claim 8, characterized in that: The protruding distance of the surface of the second metal sheet (212) is less than the depth of the limiting groove (211).

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