Lithium battery rivet gun

By vertically mounting the motor reducer on the handle of the housing and using small and large sector teeth for transmission, the problem of the large housing size of existing lithium battery rivet guns has been solved, achieving greater miniaturization and portability.

CN224444482UActive Publication Date: 2026-07-03NINGBO DEYUN TOOLS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DEYUN TOOLS CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing lithium-ion rivet guns have a large upper volume due to the horizontal mounting of the drive motor and the rivet sleeve assembly, making them inconvenient to carry.

Method used

A motor reducer is vertically mounted on the handle of the housing and drives the pull sleeve assembly through small and large sector teeth to reduce the volume of the upper part of the housing.

Benefits of technology

This has resulted in a smaller housing for the lithium-ion rivet gun, making it suitable for a wider range of workspaces and easier to carry.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a lithium-ion battery rivet gun, belonging to the field of hardware tools. The utility model includes a housing, a battery, a motor reducer, a rivet sleeve assembly, and a front cover. The battery is electrically connected to the motor reducer, which is installed inside the housing. The front cover is installed at the front end of the housing. Its structural features include: a small sector tooth, a large sector tooth, a lead screw sleeve, a lead screw, a gear seat, and a gear cover. The output shaft of the motor reducer is connected to the small sector tooth, which meshes with the large sector tooth. The large sector tooth is installed on the gear seat via the gear cover. The gear seat is installed inside the housing. The large sector tooth is fitted over the lead screw sleeve, and the lead screw sleeve is fitted over the lead screw. The front end of the lead screw is connected to the rivet sleeve assembly. A limiting plate is installed inside the housing, and a limiting groove is provided on the limiting plate. A limiting post is installed at the rear end of the lead screw, and the limiting post is located within the limiting groove.
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Description

Technical Field

[0001] This utility model relates to a lithium-ion rivet gun, belonging to the field of hardware tools. Background Technology

[0002] Rivet guns and rivet guns are common riveting tools, widely used in riveting processes for products such as construction, automobiles, ships, aircraft, machinery, electrical appliances, and furniture. In light of this, patent document No. 201822101918.1 discloses a lithium-ion battery-powered automatic rivet gun; and patent document No. 202422169610.6 discloses a multi-functional lithium-ion battery tool combining rivet, nut pulling, and drill. In these prior art rivet guns, the drive motor is directly connected to the rivet sleeve assembly and installed at the rear of the housing. This means the drive motor is horizontally mounted, resulting in a large upper volume of the housing, making it inconvenient to carry. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings in the existing technology and to provide a lithium-ion rivet gun with a reasonable structural design.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: The lithium-ion rivet gun includes a housing, a battery, a motor reducer, a rivet sleeve assembly, and a front cover. The battery is electrically connected to the motor reducer, which is installed inside the housing. The front cover is installed at the front end of the housing. Its structural features are: it also includes a small sector tooth, a large sector tooth, a lead screw sleeve, a lead screw, a gear seat, and a gear cover. The output shaft of the motor reducer is connected to the small sector tooth, and the small sector tooth meshes with the large sector tooth. The large sector tooth is installed on the gear seat through the gear cover. The gear seat is installed inside the housing. The large sector tooth is sleeved outside the lead screw sleeve, and the lead screw sleeve is sleeved outside the lead screw. The front end of the lead screw is connected to the rivet sleeve assembly.

[0005] Furthermore, a limiting piece is installed inside the housing, and a limiting groove is provided on the limiting piece. A limiting post is installed at the rear end of the lead screw, and the limiting post is located inside the limiting groove.

[0006] Furthermore, a guide tube is installed inside the lead screw, and the front end of the guide tube is connected to the pull sleeve assembly.

[0007] Furthermore, a waste nail bottle is installed at the rear end of the outer casing.

[0008] Furthermore, a pull tab is installed on the front cover.

[0009] Furthermore, the pull sleeve assembly includes a pull sleeve, a push rod, a spring, a connecting sleeve, and a claw plate. The connecting sleeve is installed at the front end of the lead screw, the pull sleeve is installed on the connecting sleeve, one end of the spring abuts against the lead screw, the other end of the spring abuts against the push rod, the push rod contacts the claw plate, the claw plate is located inside the pull sleeve, and the claw plate cooperates with the pull nozzle.

[0010] Furthermore, the front end of the conduit is connected to the top rod.

[0011] Compared with the prior art, the present invention has the following advantages: the motor reducer in the lithium battery rivet gun is vertically installed in the handle of the outer shell, and the transmission is achieved through small sector teeth and large sector teeth to control the rivet assembly. This reduces the volume of the upper part of the outer shell, makes it easy to carry, and is applicable to a wider range of working spaces. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural diagram of a lithium-ion rivet gun according to an embodiment of the present invention.

[0013] Figure 2 This is a schematic diagram of the internal structure of the lithium-ion rivet gun according to an embodiment of the present invention.

[0014] Figure 3 This is a three-dimensional structural diagram of the lithium-ion rivet gun according to an embodiment of the present invention.

[0015] In the diagram: 1. Outer shell; 2. Battery; 3. Motor reducer; 4. Small sector gear; 5. Large sector gear; 6. Lead screw sleeve; 7. Lead screw; 8. Gear seat; 9. Gear cover; 10. Limiting post; 11. Limiting piece; 12. Conduit; 13. Waste nail bottle; 14. Pull sleeve assembly; 15. Front cover; 16. Pull sleeve; 17. Top rod; 18. Spring; 19. Connecting sleeve. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0017] Example

[0018] See Figures 1 to 3As shown in the accompanying drawings, the structures, proportions, sizes, etc., depicted in this specification are merely for illustrative purposes to aid those skilled in the art and to provide a clear understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the use of terms such as "upper," "lower," "left," "right," "middle," and "one" in this specification is solely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0019] The lithium-ion rivet gun in this embodiment includes a housing 1, a battery 2, a motor reducer 3, a small sector gear 4, a large sector gear 5, a lead screw sleeve 6, a lead screw 7, a gear seat 8, a gear cover 9, a rivet assembly 14, and a front cover 15. The battery 2 is electrically connected to the motor reducer 3, which is installed inside the housing 1. The front cover 15 is installed at the front end of the housing 1.

[0020] In this embodiment, the output shaft of the motor reducer 3 is connected to the small sector tooth 4, the small sector tooth 4 meshes with the large sector tooth 5, the large sector tooth 5 is mounted on the gear seat 8 through the gear cover 9, the gear seat 8 is mounted inside the outer shell 1, the large sector tooth 5 is fitted outside the lead screw sleeve 6, the lead screw sleeve 6 is fitted outside the lead screw 7, and the front end of the lead screw 7 is connected to the pull sleeve assembly 14.

[0021] In this embodiment, a limiting piece 11 is installed inside the outer shell 1, and a limiting groove is provided on the limiting piece 11. A limiting post 10 is installed at the rear end of the lead screw 7, and the limiting post 10 is located in the limiting groove. A guide tube 12 is installed inside the lead screw 7, and the front end of the guide tube 12 is connected to the pull sleeve assembly 14. A waste nail bottle 13 is installed at the rear end of the outer shell 1.

[0022] In this embodiment, a pull nozzle is installed on the front cover 15. The pull sleeve assembly 14 includes a pull sleeve 16, a push rod 17, a spring 18, a connecting sleeve 19, and a claw plate. The connecting sleeve 19 is installed on the front end of the lead screw 7, and the pull sleeve 16 is installed on the connecting sleeve 19. One end of the spring 18 abuts against the lead screw 7, and the other end of the spring 18 abuts against the push rod 17. The push rod 17 contacts the claw plate, which is located inside the pull sleeve 16 and cooperates with the pull nozzle. The front end of the guide tube 12 is connected to the push rod 17.

[0023] Specifically, when the lithium-ion rivet gun is working, the battery 2 powers the motor reducer 3, which drives the small sector tooth 4 to rotate. Since the small sector tooth 4 meshes with the large sector tooth 5, the large sector tooth 5 can rotate. Since the large sector tooth 5 is fitted outside the lead screw sleeve 6, the lead screw sleeve 6 can rotate. Since the lead screw sleeve 6 is threadedly connected to the lead screw 7 and is limited by the limit post 10 and the limit piece 11, the lead screw 7 can move back and forth. The back and forth movement of the lead screw 7 can control the opening and closing of the rivet assembly 14. The broken rivet can fall into the guide tube 12 through the guide tube 12 for the collection of waste rivets. The rivet assembly 14 is a rivet gun disclosed in the prior art, such as the patent with application number 2022227248392.

[0024] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model are included within the protection scope of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined by the claims, all of which should fall within the protection scope of this utility model.

Claims

1. A lithium-ion rivet gun, comprising a housing (1), a battery (2), a motor reducer (3), a rivet assembly (14), and a front cover (15), wherein the battery (2) is electrically connected to the motor reducer (3), the motor reducer (3) is installed inside the housing (1), and the front cover (15) is installed at the front end of the housing (1), characterized in that: It also includes a small sector tooth (4), a large sector tooth (5), a lead screw sleeve (6), a lead screw (7), a gear seat (8), and a gear cover (9). The output shaft of the motor reducer (3) is connected to the small sector tooth (4). The small sector tooth (4) meshes with the large sector tooth (5). The large sector tooth (5) is mounted on the gear seat (8) through the gear cover (9). The gear seat (8) is installed inside the outer casing (1). The large sector tooth (5) is fitted outside the lead screw sleeve (6). The lead screw sleeve (6) is fitted outside the lead screw (7). The front end of the lead screw (7) is connected to the pull sleeve assembly (14).

2. The lithium electric rivet gun of claim 1, wherein: A limiting piece (11) is installed inside the outer shell (1), and a limiting groove is provided on the limiting piece (11). A limiting post (10) is installed at the rear end of the lead screw (7), and the limiting post (10) is located in the limiting groove.

3. The lithium electric rivet gun of claim 1, wherein: The lead screw (7) is equipped with a guide tube (12), and the front end of the guide tube (12) is connected to the pull sleeve assembly (14).

4. The lithium electric rivet gun of claim 1, wherein: Waste nail bottle (13) is installed at the rear end of the outer shell (1).

5. The lithium electric rivet gun of claim 1, wherein: A pull nozzle is installed on the front cover (15).

6. The lithium electric rivet gun of claim 1, wherein: The pull sleeve assembly (14) includes a pull sleeve (16), a push rod (17), a spring (18), a connecting sleeve (19), and a claw. The connecting sleeve (19) is installed at the front end of the lead screw (7), the pull sleeve (16) is installed on the connecting sleeve (19), one end of the spring (18) abuts against the lead screw (7), the other end of the spring (18) abuts against the push rod (17), the push rod (17) contacts the claw, the claw is located inside the pull sleeve (16), and the claw cooperates with the pull nozzle.

7. The lithium electric rivet gun of claim 3, wherein: The front end of the conduit (12) is connected to the top rod (17).