Hand-held motor mounting structure for screw mounting

Abstract

The utility model discloses a handheld motor mounting structure for screw installation relates to screw installation technical field. The utility model discloses a power screwdriver main part, power screwdriver main part bottom fixedly connected with screw shaft, screw shaft bottom fixedly connected with protection shell still include: replacement mechanism, replacement mechanism sets up in the bottom of power screwdriver main part, replacement mechanism includes the mount pad of setting on the protection shell, mount pad outside slide connection has locking ring no. The utility model discloses a mount pad is set up, and the locking ring no. is anticlockwise rotation and is separated from the screw shaft, and the fixing of mount pad can be removed, and then the mount pad can be pulled and disassembled, can select the mount pad with different size pivot according to different demand, is convenient to install or disassemble to the screw of different shape or different size, is applicable to the screw of the size gap of bigger difference, makes power screwdriver main part satisfy multiple needs, and the functionality is stronger.

Description

Technical Field

[0001] This utility model belongs to the field of screw installation technology, and in particular relates to a handheld motor installation structure for screw installation. Background Technology

[0002] A handheld motor for screw installation (commonly known as an electric screwdriver or impact screwdriver) is a precision assembly tool that uses electricity to drive rotation instead of manual rotation, and falls under the category of portable power tools.

[0003] Traditional electric screwdrivers typically use screwdriver bits to install or remove screws. However, when installing screws of different sizes, different sizes or shapes of bits are required. Traditional electric screwdrivers usually can only use bits of the same size or replace them with bits of a smaller size range. This makes it difficult to meet different needs when installing screws of different sizes or shapes, thus limiting the functionality of electric screwdrivers. Utility Model Content

[0004] The purpose of this utility model is to provide a handheld motor mounting structure for screw installation. By setting a mounting base, specifically by rotating the locking ring counterclockwise to disengage it from the screw shaft, the mounting base can be released from its fixation. Then, the mounting base can be pulled to remove it. Mounting bases with different sized rotating shafts can be selected according to different needs, making it convenient to install or remove screws of different shapes or sizes. It is suitable for screws with large size differences, enabling the electric screwdriver body to meet multiple needs and enhance its functionality. This solves the problem that traditional electric screwdrivers can usually only use the same size of cutting head or replace the cutting head with a smaller size range, making it difficult to meet different needs when installing screws of different sizes or shapes.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a handheld motor mounting structure for screw installation, comprising an electric screwdriver body, a screw shaft fixedly connected to the bottom of the electric screwdriver body, a protective shell fixedly connected to the bottom of the screw shaft, and further comprising: The replacement mechanism is located at the bottom of the electric screwdriver body. The replacement mechanism includes a mounting base sleeved on the protective shell. A locking ring is slidably connected to the outside of the mounting base. A bearing is sleeved at the bottom of the mounting base, and a rotating shaft is sleeved inside the bearing. The top of the electric screwdriver body is connected to an external power source via a wire. The locking ring has a raised bottom and the mounting base has a raised outer top. The raised parts on the locking ring and the raised parts on the mounting base cooperate to lock and fix the mounting base.

[0006] Furthermore, several positioning protrusions are fixedly connected to the outer side of the protective shell, and a square output shaft is rotatably connected to the center of the bottom of the protective shell. A square groove is opened on the top of the shaft, and the top of the shaft is inserted into the square output shaft through the square groove. Since the square output shaft is inserted into the shaft through the square groove, the shaft can be smoothly driven to rotate. The square output shaft is positioned and installed with the rotating shaft through a square slot, and the bearing is used to facilitate the rotation of the rotating shaft following the square output shaft.

[0007] Furthermore, a limiting protrusion ring is fixedly connected to the outer side of the mounting base, and several positioning grooves are opened on the inner side of the mounting base. The inner side of the mounting base is inserted into the positioning protrusion through the positioning groove, and the positioning protrusion cooperates with the positioning groove to position and install the mounting base. The insertion of the mounting base into the positioning groove and the positioning protrusion makes the mounting base more stable after installation. The limiting protrusion is used to restrict the locking ring, and the limiting protrusion is integrally formed with the mounting base.

[0008] Furthermore, a square groove is provided at the bottom of the rotating shaft, a threaded ring is fixedly connected to the bottom of the rotating shaft, a locking ring is threadedly connected to the outside of the threaded ring, and a screwdriver head is provided at the bottom of the rotating shaft; the locking ring and the threaded ring are used to lock and fix the screwdriver head, and the locking ring is sleeved on the screwdriver head to facilitate the removal and disassembly of the locking ring.

[0009] Furthermore, a convex ring is fixedly connected to the outer side of the screwdriver head, and a square block is fixedly connected to the top of the screwdriver head. The square block is inserted into the rotating shaft through a square groove, and the square block is used to position and install the screwdriver head on the rotating shaft. The convex ring is located at the bottom of the threaded ring, and a locking ring is sleeved on the outer side of the screwdriver head. The locking ring is used to press and fix the convex ring. Since the square block is inserted into the rotating shaft through the square groove, the rotating shaft can smoothly drive the screwdriver head to rotate, thereby performing the bolt installation work.

[0010] This utility model has the following beneficial effects: This utility model features a mounting base. Specifically, by rotating the locking ring counterclockwise to disengage it from the screw shaft, the mounting base can be released from its fixation. Then, the mounting base can be pulled to disassemble it. Mounting bases with different sized rotating shafts can be selected according to different needs, making it convenient to install or remove screws of different shapes or sizes. It is suitable for screws with large size differences, enabling the electric screwdriver body to meet various needs and enhance its functionality.

[0011] This utility model incorporates a second locking ring. Specifically, the screwdriver bit is positioned and inserted into the square groove at the bottom of the shaft via a square block at the top. The second locking ring is then fitted onto the outside of the screwdriver bit and threadedly connected to the threaded ring to complete the installation. By removing the second locking ring, the screwdriver bit can be pulled and removed. This method facilitates the replacement of screwdriver bits of different sizes and is suitable for screws of similar dimensions, thus meeting the installation or removal needs of various screws.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view sectional structural diagram of the mounting base of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the protective shell of this utility model; Figure 4 This is a schematic diagram of the internal structure of the mounting base of this utility model; Figure 5 This is a schematic diagram of the bottom structure of the rotating shaft of this utility model; Figure 6 This is a schematic diagram of the overall structure of the screwdriver head of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Electric screwdriver body; 11. Screw shaft; 12. Protective shell; 121. Positioning convex strip; 122. Square output shaft; 2. Replacement mechanism; 21. Mounting base; 211. Limiting convex ring; 212. Bearing; 213. Positioning groove; 22. Locking ring one; 23. Rotating shaft; 231. Square groove one; 232. Square groove two; 233. Threaded ring; 24. Locking ring two; 25. Screwdriver head; 251. Convex ring; 252. Square block. Detailed Implementation

[0016] 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 scope of protection of the present utility model.

[0017] Please see Figures 1-6 As shown, this utility model is a handheld motor mounting structure for screw installation, including an electric screwdriver body 1, a screw shaft 11 fixedly connected to the bottom of the electric screwdriver body 1, a protective shell 12 fixedly connected to the bottom of the screw shaft 11, and further including: Replacement mechanism 2 is located at the bottom of the electric screwdriver body 1. Replacement mechanism 2 includes a mounting base 21 sleeved on the protective shell 12. A locking ring 22 is slidably connected to the outer side of the mounting base 21. A bearing 212 is sleeved at the bottom of the mounting base 21, and a rotating shaft 23 is sleeved on the inner side of the bearing 212. By rotating the locking ring 22 counterclockwise to disengage it from the screw shaft 11, the mounting base 21 can be released from its fixation. Then, the mounting base 21 can be pulled to disassemble it. Mounting bases 21 with different sizes of rotating shafts 23 can be selected according to different needs, which is convenient for installing or removing screws of different shapes or sizes. It is suitable for screws with large size differences, so that the electric screwdriver body 1 can meet a variety of needs and has stronger functionality. The bottom of the inner ring of the locking ring 22 is raised, and the outer top of the mounting base 21 is raised. The protrusions on the locking ring 22 and the protrusions on the mounting base 21 cooperate with each other to lock and fix the mounting base 21.

[0018] Several positioning protrusions 121 are fixedly connected to the outside of the protective shell 12. A square output shaft 122 is rotatably connected to the center of the bottom of the protective shell 12. A square groove 231 is opened on the top of the rotating shaft 23. The top of the rotating shaft 23 is inserted into the square output shaft 122 through the square groove 231. The square output shaft 122 is positioned and installed with the rotating shaft 23 through the square groove 231. The bearing 212 is used to facilitate the rotation of the rotating shaft 23 with the square output shaft 122.

[0019] The mounting base 21 is fixedly connected to a limiting protrusion ring 211 on the outside. Several positioning grooves 213 are provided on the inner side of the mounting base 21. The inner side of the mounting base 21 is inserted into the positioning protrusion 121 through the positioning grooves 213. The positioning protrusion 121 and the positioning grooves 213 cooperate to position and install the mounting base 21. The limiting protrusion ring 211 is used to restrict the locking ring 22. The limiting protrusion ring 211 and the mounting base 21 are integrally set.

[0020] The bottom of the rotating shaft 23 has a square groove 232, and a threaded ring 233 is fixedly connected to the bottom of the rotating shaft 23. A locking ring 24 is threadedly connected to the outside of the threaded ring 233. A screwdriver head 25 is provided at the bottom of the rotating shaft 23. The screwdriver head 25 is positioned and inserted into the square groove 232 at the bottom of the rotating shaft 23 through the square block 252 at the top. Then, the locking ring 24 is put on the outside of the screwdriver head 25 and threadedly connected to the threaded ring 233 to complete the installation. The screwdriver head 25 can be pulled and removed by removing the locking ring 24. This method facilitates the replacement of screwdriver heads 25 of different sizes and is suitable for screws of similar size, thereby meeting the installation or removal needs of various screws.

[0021] A protruding ring 251 is fixedly connected to the outside of the screwdriver head 25, and a square block 252 is fixedly connected to the top of the screwdriver head 25. The square block 252 is inserted into the rotating shaft 23 through the square slot 232. The square block 252 is used to position and install the screwdriver head 25 on the rotating shaft 23.

[0022] The protruding ring 251 is located at the bottom of the threaded ring 233, and the locking ring 24 is sleeved on the outside of the screwdriver head 25. The locking ring 24 is used to press and fix the protruding ring 251.

[0023] One specific application of this embodiment is: In use, first position and insert the screwdriver bit 25 into the square slot 232 at the bottom of the shaft 23 via the square block 252 at the top, and make the convex ring 251 contact the threaded ring 233. Then, put the locking ring 24 on the outside of the screwdriver bit 25 and thread the locking ring 24 to the threaded ring 233, thereby squeezing the convex ring 251 and fixing the screwdriver bit 25. By removing the locking ring 24, the screwdriver bit 25 can be pulled and removed, making it convenient to replace screwdriver bits 25 of different sizes. This method is mainly used for screws of similar size. After the screwdriver bit 25 is installed, the mounting base 21 is inserted into the protective shell 12. The positioning groove 213 will be inserted into the positioning protrusion 121, thereby positioning and installing the mounting base 21. The top of the rotating shaft 23 is inserted into the square output shaft 122 through the square groove 231. Then, the locking ring 22 is pulled upward and threaded into the screw shaft 11. The locking ring 22 will contact and press the top of the mounting base 21, thereby locking and fixing the mounting base 21, completing the installation of the mounting base 21. By rotating the locking ring 22 counterclockwise to disengage from the screw shaft 11, the fixing of the mounting base 21 can be released and it can be disassembled. Thus, mounting bases 21 with different sizes of rotating shafts 23 can be selected according to different needs, which is convenient for installing or disassembling screws of different shapes or sizes. It is suitable for screws with large size differences. After the mounting base 21 is installed, the operator can hold the electric screwdriver body 1, insert the screwdriver head 25 into the screw, and then press the control switch on the electric screwdriver body 1 to control the internal motor drive, thereby driving the square output shaft 122 to rotate. The square output shaft 122 will drive the rotating shaft 23 to rotate together, and the screwdriver head 25 will follow the rotation. The rotating shaft 23 will rotate in the inner ring of the bearing 212. The model of the electric screwdriver body 1 is (SD-H series).

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A handheld motor mounting structure for screw installation, comprising an electric screwdriver body (1), wherein a screw shaft (11) is fixedly connected to the bottom of the electric screwdriver body (1), and a protective shell (12) is fixedly connected to the bottom of the screw shaft (11), characterized in that, Also includes: Replacement mechanism (2), the replacement mechanism (2) is set at the bottom of the electric screwdriver body (1), the replacement mechanism (2) includes a mounting base (21) sleeved on the protective shell (12), a locking ring (22) is slidably connected to the outside of the mounting base (21), a bearing (212) is sleeved at the bottom of the mounting base (21), and a rotating shaft (23) is sleeved on the inside of the bearing (212). The bottom of the inner ring of the locking ring (22) is raised, and the outer side of the top of the mounting base (21) is raised. The raised parts on the locking ring (22) and the raised parts on the mounting base (21) cooperate with each other to lock and fix the mounting base (21).

2. The handheld motor mounting structure for screw mounting according to claim 1, characterized in that, The protective shell (12) has several positioning protrusions (121) fixedly connected to its outer side. A square output shaft (122) is rotatably connected to the center of the bottom of the protective shell (12). A square groove (231) is opened on the top of the rotating shaft (23). The top of the rotating shaft (23) is inserted into the square output shaft (122) through the square groove (231). The square output shaft (122) is positioned and installed with the rotating shaft (23) through the square slot (231), and the bearing (212) is used to facilitate the rotating shaft (23) to rotate with the square output shaft (122).

3. The handheld motor mounting structure for screw mounting according to claim 2, characterized in that, The mounting base (21) is fixedly connected to the outer side of the limiting protrusion ring (211), and the mounting base (21) is provided with a plurality of positioning grooves (213) on the inner side. The inner side of the mounting base (21) is inserted into the positioning protrusion (121) through the positioning groove (213). The positioning protrusion (121) and the positioning groove (213) cooperate to position and install the mounting base (21). The limiting protrusion (211) is used to restrict the locking ring (22), and the limiting protrusion (211) and the mounting base (21) are integrally formed.

4. The handheld motor mounting structure for screw mounting according to claim 3, characterized in that, The bottom of the rotating shaft (23) is provided with a square groove (232), and a threaded ring (233) is fixedly connected to the bottom of the rotating shaft (23). A locking ring (24) is threadedly connected to the outside of the threaded ring (233), and a screwdriver head (25) is provided at the bottom of the rotating shaft (23).

5. The handheld motor mounting structure for screw mounting according to claim 4, characterized in that, A protruding ring (251) is fixedly connected to the outside of the screwdriver head (25), and a square block (252) is fixedly connected to the top of the screwdriver head (25). The square block (252) is inserted into the rotating shaft (23) through the square groove (232). The square block (252) is used to position the screwdriver head (25) on the rotating shaft (23).

6. The handheld motor mounting structure for screw mounting according to claim 5, characterized in that, The convex ring (251) is located at the bottom of the threaded ring (233), and the locking ring (24) is sleeved on the outside of the screwdriver head (25). The locking ring (24) is used to press and fix the convex ring (251).

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