Lithium electric nail gun motor support connecting structure

By using the connection structure of the motor body, the lower motor bracket, the upper motor bracket, and bolts, the stability and heat dissipation issues of the lithium-ion nail gun motor body during operation are solved, achieving precise positioning of the motor and gearbox and good heat dissipation.

CN223652048UActive Publication Date: 2025-12-09万致精工科技(合肥)有限公司
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Patent Information

Application Number
CN202520281938.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-12-09
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

The existing lithium-ion nail gun motor cannot guarantee stability during operation and has poor heat dissipation.

Method used

The motor body, lower motor bracket, upper motor bracket, and bolt connection structure are adopted. Through the precise fit between the bearing body and the bearing hole, and by fastening the upper motor bracket and the lower motor bracket with four bolts, it is ensured that the motor body and the gearbox are accurately positioned on the same center line, while providing good ventilation and heat dissipation.

Benefits of technology

It achieves smooth operation of the motor body and gearbox, takes into account the motor's heat dissipation problem, and improves operational stability and heat dissipation efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223652048U_ABST
    Figure CN223652048U_ABST
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Abstract

The utility model discloses a lithium electric nail gun motor support connecting structure in the technical field of lithium electric nail guns, which comprises a motor main body, a motor lower support, a motor upper support and a bolt, the motor lower support is sleeved at the bottom of the motor main body, the motor upper support is sleeved at the top of the motor main body, and the bolt is sleeved at the bottom of the motor main body. The bolts are inserted into the four corners of the bottom of the motor lower support, the position, located on the outer side of a power shaft of the motor body, of the top of the motor body is sleeved with a bearing body, and a bearing hole is formed in the middle of the top of an inner cavity of the motor upper support. The motor upper support guarantees stable operation of the motor, also gives consideration to good ventilation and heat dissipation performance of the motor, and also gives consideration to the advantage that the motor and the gearbox are accurately positioned to guarantee the same center line, thereby being capable of guaranteeing stable operation of the motor and the gearbox, and also giving consideration to the heat dissipation problem.
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Description

Technical Field

[0001] This utility model relates to the field of lithium-ion nail gun technology, specifically to a lithium-ion nail gun motor bracket connection structure. Background Technology

[0002] Nail guns are products composed of multiple parts such as tool housings and magazines. They are divided into electric nail guns, pneumatic nail guns, gas nail guns, and manual nail guns. Lithium-ion nail guns are handheld lithium-ion nailing tools, which are mostly used in the construction, decoration, and furniture industries.

[0003] Chinese patent CN222262386U discloses "An Assembly Structure for a Lithium-ion Nail Gun Motor Gearbox," comprising a lithium-ion nail gun body, a gearbox internally mounted within the body, bearing holes within the gearbox, square grooves on the internal sidewalls of the gearbox, a motor upper bracket fixedly connected to the lower end of the gearbox, a motor body fixedly connected to the lower end of the motor upper bracket, and a motor central shaft internally mounted within the motor body. This utility model's lithium-ion nail gun motor gearbox assembly structure achieves this by fitting the square boss of the motor upper bracket into the square groove inside the gearbox, aligning the bearing hole on the bottom of the motor central shaft with the bearing body, thus ensuring the gearbox and motor central shaft are aligned. This facilitates precise positioning and installation of the gearbox and motor body. Finally, bolts pass through the motor upper bracket and lock together with the gearbox, reducing energy loss during assembly. However, the motor body in this patent cannot guarantee operational stability or simultaneously address heat dissipation issues. Therefore, we propose a lithium-ion nail gun motor bracket connection structure. Utility Model Content

[0004] The purpose of this utility model is to provide a lithium-ion nail gun motor bracket connection structure to solve the problem mentioned in the background art that the motor body cannot guarantee the stability of the device during operation and cannot simultaneously ensure its heat dissipation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium-ion nail gun motor bracket connection structure, comprising a motor body, a lower motor bracket, an upper motor bracket, and bolts. The lower motor bracket is sleeved on the bottom of the motor body, the upper motor bracket is sleeved on the top of the motor body, and the bolts are inserted into the four bottom corners of the lower motor bracket. A bearing body is sleeved on the top of the motor body and located outside the motor body's power shaft. A bearing hole is opened in the middle of the top of the inner cavity of the upper motor bracket.

[0006] Preferably, the bearing body is embedded in the inner cavity of the bearing hole, and the motor main drive shaft passes through the upper motor bracket and extends to the top of the upper motor bracket.

[0007] Preferably, the end of the bolt passes through the motor body and extends into the inner cavity of the upper motor bracket, and is screwed to the upper motor bracket.

[0008] Preferably, the motor body, the bearing body, the lower motor bracket, the upper motor bracket, and the bearing hole are located on the same center line.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: In this lithium-ion nail gun motor bracket connection structure, the bearing body on the motor body is precisely matched with the bearing hole of the upper motor bracket, and the upper motor bracket and the lower motor bracket are fastened together by four bolts. At the same time, the upper motor bracket ensures the smooth operation of the motor while also taking into account the good ventilation and heat dissipation of the motor body. It also takes into account the advantage of the precise positioning of the motor body and the gearbox to ensure that they are on the same center line, thereby ensuring the smooth operation of the motor body and the gearbox, while also taking into account the heat dissipation problem. Attached Figure Description

[0010] Figure 1 This is an exploded structural diagram of a lithium-ion nail gun motor bracket connection structure proposed in this utility model;

[0011] Figure 2 This is a front view schematic diagram of a lithium-ion nail gun motor bracket connection structure proposed in this utility model;

[0012] Figure 3 This is a three-dimensional structural diagram of the motor upper bracket of the lithium-ion nail gun motor bracket connection structure proposed in this utility model.

[0013] In the diagram: 100, motor body; 110, bearing body; 200, lower motor bracket; 300, upper motor bracket; 310, bearing hole; 400, bolt. Detailed Implementation

[0014] 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.

[0015] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] like Figures 1-3 As shown, this utility model provides a lithium-ion nail gun motor bracket connection structure, which can ensure the smooth operation of the motor and gearbox, while also taking into account the heat dissipation problem. It includes a motor body 100, a lower motor bracket 200, an upper motor bracket 300, and bolts 400.

[0018] Please see Figure 1 and Figure 2 The bearing body 110 is embedded in the inner cavity of the bearing hole 310. The bearing body 110 is used to support the rotation of the output shaft on the motor body 100. The power shaft of the motor body 100 passes through the upper motor bracket 300 and extends to the top of the upper motor bracket 300.

[0019] Please refer to it again. Figure 1 and Figure 2 The lower motor bracket 200 is sleeved on the bottom of the motor body 100. The lower motor bracket 200 is used to cooperate with the upper motor bracket 300 to clamp and install the motor body 100.

[0020] Please see Figure 1-3 The motor upper bracket 300 is sleeved on the top of the motor body 100;

[0021] Please see Figure 1Bolts 400 are inserted into the four bottom corners of the lower motor bracket 200. Bolts 400 are used to connect the upper motor bracket 300 and the lower motor bracket 200. A bearing body 110 is sleeved on the top of the motor body 100 and outside the power shaft of the motor body 100. A bearing hole 310 is opened in the middle of the top of the inner cavity of the upper motor bracket 300. The bearing hole 310 is used to fit the bearing body 110 for internal installation. The end of the bolt 400 passes through the motor body 100 and extends into the inner cavity of the upper motor bracket 300, and is screwed to the upper motor bracket 300. The motor body 100 The bearing body 110, the lower motor bracket 200, the upper motor bracket 300, and the bearing hole 310 are all on the same center line. The bearing body 110 on the motor body 100 is precisely fitted with the bearing hole 310 of the upper motor bracket 300. The upper motor bracket 300 and the lower motor bracket 200 are fastened together by four bolts 400. At the same time, the upper motor bracket 300 ensures the stable operation of the motor body 100, while also taking into account the good ventilation and heat dissipation of the motor body 100. It also takes into account the advantage of the precise positioning of the motor body 100 and the gearbox to ensure that they are on the same center line.

[0022] In summary, this ensures the smooth operation of the motor body 100 and the gearbox, while also addressing the heat dissipation issue.

[0023] In practical use, when assembling the lithium-ion nail gun motor, those skilled in the art use a precise fit between the bearing body 110 on the motor body 100 and the bearing hole 310 on the upper motor bracket 300. Four bolts 400 are used to fasten the upper motor bracket 300 and the lower motor bracket 200 together. After installation, the upper motor bracket 300 is installed on the gearbox inside the lithium-ion nail gun, so that the motor body 100, bearing body 110, lower motor bracket 200, upper motor bracket 300 and bearing hole 310 are on the same center line. When the motor body 100 is running, it can operate more stably without affecting heat dissipation.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lithium-ion nail gun motor bracket connection structure, characterized in that: The device includes a motor body (100), a lower motor bracket (200), an upper motor bracket (300), and bolts (400). The lower motor bracket (200) is fitted onto the bottom of the motor body (100), and the upper motor bracket (300) is fitted onto the top of the motor body (100). The bolts (400) are inserted into the four bottom corners of the lower motor bracket (200). A bearing body (110) is fitted onto the top of the motor body (100) and outside the power shaft of the motor body (100). A bearing hole (310) is opened in the middle of the top of the inner cavity of the upper motor bracket (300).

2. The lithium-ion nail gun motor bracket connection structure according to claim 1, characterized in that: The bearing body (110) is embedded in the inner cavity of the bearing hole (310), and the power shaft of the motor body (100) passes through the upper motor bracket (300) and extends to the top of the upper motor bracket (300).

3. The lithium-ion nail gun motor bracket connection structure according to claim 1, characterized in that: The end of the bolt (400) passes through the motor body (100) and extends into the inner cavity of the upper motor bracket (300), and is screwed to the upper motor bracket (300).

4. The lithium-ion nail gun motor bracket connection structure according to claim 1, characterized in that: The motor body (100), the bearing body (110), the lower motor bracket (200), the upper motor bracket (300), and the bearing hole (310) are on the same center line.

Citation Information

Patent Citations

  • Lithium electric nail gun motor gear box assembling structure

    CN222262386U