An integrally molded plastic housing for a power tool
By introducing a magnetic plate and a magnetic plate into the plastic housing of power tools, combined with mounting posts and limiting blocks, the problems of unstable and inconvenient installation of existing power tool housings are solved. Stable installation and easy replacement of the rotating head are achieved. Furthermore, the design of the connecting plate and fastening nut enhances the stability of the connecting tube and the rotating shaft, and the anti-slip performance of the housing is also improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- UMIJIN ELECTRONICS (KUNSHAN) CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-14
AI Technical Summary
Existing one-piece molded plastic housings for power tools are not stable and inconvenient to install.
By using a magnetic plate and a magnetic plate together inside the socket, combined with a mounting post and a limiting block, the installation stability and ease of replacement of the rotating head are enhanced; a connecting plate, a fastening nut, and a limiting ring are installed at the connection tube and the rotating shaft to improve connection stability and ease of use; and an anti-slip sleeve is installed on the outer shell to enhance anti-slip performance.
It achieves stable installation and convenient replacement of the rotating head, a solid connection between the connecting pipe and the rotating shaft, and improved anti-slip performance of the outer shell, thus enhancing the overall ease of installation and stability of use of power tools.
Smart Images

Figure CN224489043U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of power tools, specifically relating to a one-piece molded plastic housing for power tools. Background Technology
[0002] An integrated molded plastic housing for power tools is a type of power tool housing made from plastic material using a specific process. It features an integrated structure and multiple functions. This utility model of an integrated molded plastic housing for power tools mainly consists of components such as a rotating head, connecting pipe, bottom cover, switch button, anti-slip sleeve, housing body, mounting post, motor body, battery box, connecting post, rotating shaft, connecting plate, magnet plate, limiting groove, placement groove, limiting block, magnetic plate, and socket. Existing integrated molded plastic housings for power tools suffer from poor stability and inconvenience during installation, making an integrated molded plastic housing for power tools essential. Utility Model Content
[0003] The purpose of this utility model is to provide a one-piece molded plastic housing for power tools, so as to solve the problems mentioned in the background art, such as poor stability and inconvenience during installation of existing one-piece molded plastic housings for power tools.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a one-piece molded plastic housing for power tools, comprising...
[0005] The outer casing and the motor body disposed inside the outer casing;
[0006] A rotating shaft is connected to the upper end of the motor body, and a connecting pipe is installed at the upper end of the rotating shaft and at the upper end of the outer shell body.
[0007] An insertion hole is provided on the inner side of the connecting pipe, and a limiting groove is provided on the inner wall of the insertion hole and around the insertion hole. A magnet plate is embedded at the bottom of the insertion hole.
[0008] An installation post is installed inside the socket. A limiting block is connected to the outer wall of the installation post and around the perimeter of the installation post. A placement groove is provided at the bottom of the installation post, and a magnetic plate is embedded inside the placement groove.
[0009] A rotating head is connected to the upper end of the mounting column;
[0010] A battery box is located inside the main body of the outer casing and below the motor body. The motor body and the battery box are connected by a power cable.
[0011] The combined use of the mounting post, limiting block, limiting groove, insertion hole, magnetic plate, and magnetic plate enhances the stability of the rotating head installation and the ease of replacement.
[0012] Preferably, a connecting plate is connected to the upper end of the rotating shaft and the lower end of the connecting pipe. A connecting hole is provided inside the connecting plate and around the perimeter of the connecting plate, and the connecting hole penetrates the connecting plate.
[0013] Preferably, a fastening nut is installed inside the connecting hole and at the upper end of the upper connecting plate, and the outer wall of the fastening nut is provided with external threads.
[0014] Preferably, a limiting ring is installed on the outside of the fastening nut at the lower end of the lower connecting plate, and the inner wall of the limiting ring is provided with internal threads.
[0015] Preferably, the limiting ring is connected to the external thread of the fastening nut via the internal thread of the inner wall, thereby fixing the connecting plates together and fixing the connecting tube to the upper end of the rotating shaft. The cooperation of the connecting plate, connecting hole, fastening nut and limiting ring enhances the stability and convenience of the connection between the connecting tube and the rotating shaft.
[0016] Preferably, an anti-slip sleeve is installed on the outer part of the outer shell body, and the anti-slip sleeve is connected to the outer shell body by a sleeve connection.
[0017] Preferably, a switch button is installed at the front of the outer shell body and below the anti-slip sleeve, and the anti-slip sleeve is made of rubber material.
[0018] Preferably, a bottom cover is installed at the lower end of the outer shell body, and a connecting post is connected inside the outer shell body and at the upper end of the bottom cover. The connecting post is connected to the outer shell body by threads. The anti-slip sleeve enhances the anti-slip performance of the outer shell body.
[0019] Compared with the prior art, the present invention provides a one-piece molded plastic housing for power tools, which has the following advantages:
[0020] This invention improves upon a one-piece molded plastic housing for power tools. When using the one-piece molded plastic housing, the rotary head is first inserted into the socket inside the connecting tube via the mounting post, causing the limiting block on the outside of the mounting post to engage with the limiting groove on the inner wall of the socket. When the mounting post reaches the bottom of the socket, the magnetic plate at the bottom of the mounting post is attracted by the magnetic plate at the bottom of the socket, thus mounting the rotary head on the upper part of the housing body. Pressing the switch button starts the motor body, which rotates the connecting tube via the rotating shaft, thereby rotating the rotary head. The operator then holds the housing body and uses the rotary head to install and remove nuts. The coordinated use of the mounting post, limiting block, limiting groove, socket, magnetic plate, and magnetic plate enhances the stability of the rotary head installation and the ease of replacement. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the one-piece molded plastic shell of the power tool according to this utility model.
[0022] Figure 2 This is a structural schematic diagram of the front view of the one-piece molded plastic housing of the power tool according to this utility model.
[0023] Figure 3 This is a frontal sectional view of the one-piece molded plastic housing of the power tool according to this utility model.
[0024] Figure 4 This is an enlarged structural diagram of the internal structure of the connecting tube of the one-piece molded plastic shell of the power tool according to this utility model.
[0025] In the diagram: 1. Rotating head; 2. Connecting pipe; 3. Bottom cover; 4. Switch button; 5. Anti-slip sleeve; 6. Outer shell body; 7. Mounting post; 8. Motor body; 9. Battery box; 10. Connecting post; 11. Rotating shaft; 12. Connecting plate; 13. Magnetic plate; 14. Limiting groove; 15. Placement groove; 16. Limiting block; 17. Magnetic plate; 18. Socket. Detailed Implementation
[0026] 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.
[0027] This utility model provides, for example Figure 1-4The illustrated one-piece molded plastic housing for a power tool includes a housing body 6 and a motor body 8 disposed inside the housing body 6. A rotating shaft 11 is connected to the upper end of the motor body 8, and a connecting pipe 2 is installed at the upper end of the rotating shaft 11, located at the upper end of the housing body 6. An insertion hole 18 is provided on the inner side of the connecting pipe 2, and a limiting groove 14 is provided on the inner wall of the insertion hole 18, surrounding the insertion hole 18. A magnet plate 13 is embedded at the bottom of the insertion hole 18. A mounting post 7 is installed inside the insertion hole 18. A limiting block 16 is connected to the outer wall of the mounting column 7 and around the perimeter of the mounting column 7. A placement groove 15 is provided at the bottom of the mounting column 7, and a magnetic plate 17 is embedded inside the placement groove 15. A rotating head 1 is connected to the upper end of the mounting column 7. A battery box 9 is provided inside the outer shell body 6 and below the motor body 8. The motor body 8 and the battery box 9 are connected by a power cable. Through the combined use of the mounting column 7, limiting block 16, limiting groove 14, insertion hole 18, magnetic plate 17 and magnetic plate 13, the stability of the rotating head 1 installation and the convenience of replacement are enhanced.
[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, to enhance the stability of the rotating head 1 installation and the ease of replacement, when using the one-piece molded power tool plastic housing, the rotating head 1 is first inserted into the socket 18 inside the connecting tube 2 through the mounting post 7, and the limiting block 16 on the outside of the mounting post 7 is engaged in the limiting groove 14 on the inner wall of the socket 18. When the mounting post 7 enters the bottom of the socket 18, the magnetic plate 17 at the bottom of the mounting post 7 is attracted by the magnetic plate 13 at the bottom of the socket 18, thereby making the rotating head 1 installed on the upper end of the housing body 6. At this time, the switch button 4 is pressed to start the motor body 8. The operation of the motor body 8 will drive the connecting tube 2 to rotate through the rotating shaft 11, thereby driving the rotating head 1 to rotate. Then, the operator holds the housing body 6 and installs and removes the nut through the rotating head 1. Through the coordinated use of the mounting post 7, limiting block 16, limiting groove 14, socket 18, magnetic plate 17 and magnetic plate 13, the stability of the rotating head 1 installation and the ease of replacement are enhanced.
[0029] Connecting plates 12 are connected to the upper end of the rotating shaft 11 and the lower end of the connecting pipe 2. Connecting holes are provided inside the connecting plates 12 and around its perimeter. The connecting holes penetrate the connecting plates 12. A fastening nut is installed inside the connecting holes at the upper end of the upper connecting plate 12. The outer wall of the fastening nut has external threads. A limiting ring is installed outside the fastening nut at the lower end of the lower connecting plate 12. The inner wall of the limiting ring has internal threads. The limiting ring is connected to the external threads of the fastening nut through the internal threads of its inner wall, thereby fixing the connecting plates 12 together. This, in turn, fixes the connecting pipe 2 to the upper end of the rotating shaft 11. Through the coordinated use of the connecting plates 12, connecting holes, fastening nuts, and limiting rings, the stability and convenience of the connection between the connecting pipe 2 and the rotating shaft 11 are enhanced.
[0030] like Figure 3 and Figure 4 As shown, in order to enhance the stability and convenience of the connection between the connecting pipe 2 and the rotating shaft 11, when using the one-piece molded plastic housing of the power tool, first connect the rotating shaft 11, the connecting pipe 2 and the connecting plate 12. Then, place the connecting plate 12 at the lower end of the connecting pipe 2 on the upper end of the connecting plate of the rotating shaft 11, so that the connecting plate 12 and the connecting hole of the connecting plate 12 are aligned. Next, insert the fastening nut into the connecting hole and make the fastening nut located at the upper end of the upper connecting plate 12. Then, install the limiting ring on the outside of the fastening nut and make the limiting ring located at the lower end of the lower connecting plate. The limiting ring is connected to the external thread of the fastening nut through the internal thread of the inner wall, thereby fixing the connecting plate 12 together, and thus fixing the connecting pipe 2 at the upper end of the rotating shaft 11. Through the coordinated use of the connecting plate 12, the connecting hole, the fastening nut and the limiting ring, the stability and convenience of the connection between the connecting pipe 2 and the rotating shaft 11 are enhanced.
[0031] An anti-slip sleeve 5 is installed on the outer part of the outer shell body 6. The anti-slip sleeve 5 is connected to the outer shell body 6 by a sleeve connection. A switch button 4 is installed at the front of the outer shell body 6 and below the anti-slip sleeve 5. The anti-slip sleeve 5 is made of rubber material. A bottom cover 3 is installed at the lower end of the outer shell body 6. A connecting post 10 is connected to the inside of the outer shell body 6 and above the bottom cover 3. The connecting post 10 is connected to the outer shell body 6 by a thread. The anti-slip sleeve enhances the anti-slip performance of the outer shell body 6.
[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in order to enhance the anti-slip performance of the outer shell 6, when using the one-piece molded plastic shell of the power tool, first, the anti-slip sleeve 5 is fitted onto the outside of the outer shell 6. Then, the switch button 4 is pressed to start the motor body 8. The operation of the motor body 8 will drive the connecting pipe 2 to rotate through the rotating shaft 11, thereby driving the rotating head 1 to rotate. Then, the operator holds the anti-slip sleeve 5 on the outside of the outer shell 6 and uses the rotating head 1 to install and remove the nut. Since the anti-slip sleeve 5 is made of rubber material, it will increase the friction between the palm and the outer shell 6, thereby preventing the operator from slipping the outer shell 6 during operation and causing damage to the tool. The anti-slip sleeve enhances the anti-slip performance of the outer shell 6.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A one-piece molded plastic housing for power tools, characterized in that: include The outer casing (6) and the motor body (8) located inside the outer casing (6); A rotating shaft (11) is connected to the upper end of the motor body (8), and a connecting pipe (2) is installed at the upper end of the rotating shaft (11) and at the upper end of the outer shell body (6). An insertion hole (18) is provided on the inner side of the connecting pipe (2), and a limiting groove (14) is provided on the inner wall of the insertion hole (18) and around the insertion hole (18). A magnet plate (13) is embedded at the bottom of the insertion hole (18). An installation post (7) is installed inside the socket (18). A limiting block (16) is connected to the outer wall of the installation post (7) and around the perimeter of the installation post (7). A placement groove (15) is provided at the bottom of the installation post (7). A magnetic plate (17) is embedded inside the placement groove (15). A rotating head (1) is connected to the upper end of the mounting column (7); A battery box (9) is provided inside the outer shell body (6) and below the motor body (8). The motor body (8) and the battery box (9) are connected by a power cord. The stability of the rotating head (1) installation and the ease of replacement are enhanced by the combined use of the mounting post (7), limiting block (16), limiting groove (14), socket (18), magnetic plate (17) and magnetic plate (13).
2. The one-piece molded plastic housing for power tools according to claim 1, characterized in that: A connecting plate (12) is connected to the upper end of the rotating shaft (11) and the lower end of the connecting pipe (2). A connecting hole is provided inside the connecting plate (12) and around the connecting plate (12). The connecting hole penetrates the connecting plate (12).
3. The one-piece molded plastic housing for power tools according to claim 2, characterized in that: A fastening nut is installed inside the connecting hole and at the upper end of the upper connecting plate (12), and the outer wall of the fastening nut is provided with an external thread.
4. The one-piece molded plastic housing for power tools according to claim 3, characterized in that: A limiting ring is installed on the outside of the fastening nut and at the lower end of the lower connecting plate (12), and the inner wall of the limiting ring is provided with an internal thread.
5. The one-piece molded plastic housing for power tools according to claim 4, characterized in that: The limiting ring is connected to the external thread of the fastening nut through the internal thread of the inner wall, thereby fixing the connecting plate (12) together, and then fixing the connecting tube (2) to the upper end of the rotating shaft (11). Through the cooperation of the connecting plate (12), connecting hole, fastening nut and limiting ring, the stability and convenience of the connection between the connecting tube (2) and the rotating shaft (11) are enhanced.
6. The one-piece molded plastic housing for power tools according to claim 1, characterized in that: An anti-slip sleeve (5) is installed on the outer part of the outer shell body (6), and the anti-slip sleeve (5) is connected to the outer shell body (6) by a sleeve connection.
7. The one-piece molded plastic housing for power tools according to claim 6, characterized in that: A switch button (4) is installed at the front of the outer shell body (6) and below the anti-slip sleeve (5), and the anti-slip sleeve (5) is made of rubber material.
8. The one-piece molded plastic housing for power tools according to claim 7, characterized in that: A bottom cover (3) is installed at the lower end of the outer shell body (6). A connecting post (10) is connected inside the outer shell body (6) and at the upper end of the bottom cover (3). The connecting post (10) is connected to the outer shell body (6) by a thread. The anti-slip performance of the outer shell body (6) is enhanced by the anti-slip sleeve (5).