Lithium battery ratchet wrench with adjustable handheld length

Abstract

The utility model discloses a lithium battery ratchet wrench with adjustable handheld length, which comprises a handle, a wrench main body is movably mounted in the handle, one end of the wrench main body extends to the outside of the handle and is provided with a wrench head, a second motor is mounted on one side of the bottom of the wrench head, and a second rotating shaft is mounted at the output end of the second motor through a coupler. A bearing is arranged at the bottom of the wrench head on one side of the second motor, a driven gear is rotationally installed at the top end of the bearing, a linkage shaft is arranged in the center of the top end of the driven gear, and the top end of the linkage shaft extends out of the wrench head and is provided with a ratchet wheel sleeve. According to the ratchet wrench, the labor intensity of personnel is reduced, the screwing efficiency of the ratchet part is improved, the length of the handheld part of the ratchet wrench can be easily adjusted according to personal preference or operation requirements, so that the comfort of a user holding the ratchet wrench is guaranteed, and the convenience and flexibility of the ratchet wrench in use are improved.

Description

Technical Field

[0001] This utility model relates to the field of manual and power tool technology, specifically a lithium-ion ratchet wrench with adjustable grip length. Background Technology

[0002] Traditional ratchet wrenches are widely used in various industries such as automotive repair and machinery manufacturing due to their high efficiency and labor-saving features. However, traditional ratchet wrenches are mostly designed with a fixed length, which cannot be adjusted according to the user's hand size, workspace limitations, or work requirements. Long-term use may lead to hand fatigue or inconvenience in operation. Therefore, it is particularly important to develop a lithium-ion battery ratchet wrench with an adjustable grip length.

[0003] Referring to CN207495373U, an adjustable length and angle ratchet wrench includes a handle body divided into three sections from left to right: a tool clamping section, an intermediate transition section, and a spindle clamping section. The tool clamping section has a tool head mounting cavity for mounting milling cutters, the spindle clamping section has a spindle mounting cavity, and the intermediate transition section has a cavity with an injection port communicating with the cavity. A flow channel connects the tool head mounting cavity and the cavity. This ratchet wrench allows for easy insertion of the wrench by simply removing the countersunk screw and injecting the material into the cavity through the injection port. High-pressure hydraulic oil can remove the broken end mill remnants from the cutter head mounting cavity, effectively solving the problem of tool holder scrapping and premature failure caused by end mill breakage. This improves the service life and economic efficiency of heat shrink tool holders. As mentioned above, although this ratchet wrench can be used well, it is usually not convenient to drive the ratchet component electrically. It requires manual operation to turn the ratchet wrench, which increases the labor intensity of the personnel and affects the turning efficiency of the ratchet component, often causing trouble for users. Utility Model Content

[0004] The purpose of this invention is to provide a lithium-ion ratchet wrench with adjustable grip length, in order to solve the problem mentioned in the background art that although ratchet wrenches can be used well, they are usually not convenient for electric drive of the ratchet component to rotate. Personnel need to manually rotate the ratchet wrench to turn the ratchet component, which increases the labor intensity of personnel and affects the turning efficiency of the ratchet component.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-grip lithium-ion ratchet wrench, comprising a handle, a wrench body movably mounted inside the handle, one end of the wrench body extending to the outside of the handle and having a wrench head, a second motor mounted on one side of the bottom of the wrench head, a second rotating shaft mounted on the output end of the second motor via a coupling, a drive gear mounted on the top of the second rotating shaft, a bearing located at the bottom of the wrench head on one side of the second motor, a driven gear rotatably mounted on the top of the bearing, the driven gear meshing with the drive gear, a linkage shaft located at the center of the top of the driven gear, the top of the linkage shaft extending to the outside of the wrench head and having a ratchet sleeve, a control panel mounted on one side of the top of the handle, the output end of a microcontroller inside the control panel being electrically connected to the input end of the second motor.

[0006] Preferably, a first motor is installed on the inner wall of one side of the wrench body. The input end of the first motor is electrically connected to the output end of the microcontroller inside the control panel. The first motor is configured to drive the first rotating shaft to rotate.

[0007] Preferably, the output end of the first motor is equipped with a first rotating shaft via a coupling, and the end of the first rotating shaft away from the first motor is provided with a threaded rod. The first rotating shaft is configured so that the first motor can drive the threaded rod to rotate when it is running.

[0008] Preferably, a limiting disc is fixed at the end of the threaded rod away from the first rotating shaft, and a threaded cylinder is threadedly installed on the outer wall of one side of the threaded rod. The limiting disc is used to prevent the threaded cylinder from detaching from the outer wall of the threaded rod.

[0009] Preferably, connecting rods are provided on the outer walls of both sides of the threaded cylinder. The end of the connecting rod away from the threaded cylinder extends to the outside of the wrench body and connects to the inner wall of the handle. By setting the connecting rods, when the threaded cylinder slides on the outer wall of the threaded cylinder, it drives the handle to slide on the outside of the wrench body.

[0010] Preferably, the ratchet sleeve has a ratchet groove inside, which allows the ratchet sleeve to be fitted and installed on the outside of the ratchet component.

[0011] Preferably, a lithium battery is installed at the bottom of the wrench head on the side of the second motor away from the bearing. A charging port is provided at the bottom of the wrench head where the lithium battery is located. The output end of the charging port is electrically connected to the input end of the lithium battery. The charging port is provided to charge the lithium battery.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the adjustable hand grip length lithium battery ratchet wrench not only reduces the labor intensity of personnel and improves the turning efficiency of the ratchet, but also allows the hand grip length of the ratchet wrench to be easily adjusted according to personal preferences or work needs, so as to ensure the comfort of users when holding the ratchet wrench, and improves the convenience and flexibility of ratchet wrench when using it.

[0013] (1) The second motor drives the drive gear to rotate via the second rotating shaft. Since the drive gear and the driven gear mesh with each other, and the diameter of the drive gear is smaller than that of the driven gear, the drive gear drives the driven gear to rotate slowly, and the driven gear drives the ratchet sleeve to rotate synchronously via the linkage shaft. When the ratchet groove is engaged with the outside of the ratchet part, the ratchet sleeve can electrically turn the ratchet part. Compared with the traditional manual turning operation, this reduces the labor intensity of personnel and improves the turning efficiency of the ratchet part.

[0014] (2) The first motor drives the threaded rod to rotate through the first rotating shaft, so that the threaded cylinder slides on the outer wall of the threaded rod, and the threaded cylinder drives the handle to slide on the outside of the wrench body through the connecting rod. This allows the user to easily adjust the length of the ratchet wrench's grip according to personal preference or work requirements, thus ensuring the user's comfort when holding the ratchet wrench.

[0015] (3) The lithium battery is charged by connecting an external charging head through the charging port, so that the lithium battery can power the entire ratchet wrench. This eliminates the need for an external power cord to operate the ratchet wrench, thereby improving the convenience and flexibility of using the ratchet wrench. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a frontal cross-sectional view of the present invention.

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0020] In the diagram: 1. Handle; 2. Wrench body; 3. Wrench head; 4. Ratchet sleeve; 401. Ratchet groove; 5. Control panel; 6. Charging port; 7. Lithium battery; 8. First motor; 9. First shaft; 10. Threaded rod; 11. Connecting rod; 12. Second motor; 13. Second shaft; 14. Drive gear; 15. Bearing; 16. Driven gear; 17. Linkage shaft; 18. Limiting plate; 19. Threaded sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-4 One embodiment of this utility model is a lithium-ion ratchet wrench with adjustable grip length, including a handle 1, a wrench body 2 is movably installed inside the handle 1, a first motor 8 is installed on the inner wall of one side of the wrench body 2, and the input end of the first motor 8 is electrically connected to the output end of the microcontroller inside the control panel 5.

[0023] In use, the first motor 8 is configured to drive the first rotating shaft 9 to rotate;

[0024] The output end of the first motor 8 is equipped with a first rotating shaft 9 via a coupling, and a threaded rod 10 is provided at the end of the first rotating shaft 9 away from the first motor 8.

[0025] In use, the first rotating shaft 9 is set so that the first motor 8 can drive the threaded rod 10 to rotate when it is running;

[0026] A limit plate 18 is fixed at one end of the threaded rod 10 away from the first rotating shaft 9, and a threaded cylinder 19 is threadedly installed on the outer wall of one side of the threaded rod 10.

[0027] During use, the limiting plate 18 is set to prevent the threaded cylinder 19 from disengaging from the outer wall of the threaded rod 10;

[0028] Connecting rods 11 are provided on the outer walls of both sides of the threaded cylinder 19. The end of the connecting rod 11 away from the threaded cylinder 19 extends to the outside of the wrench body 2 and connects to the inner wall of the handle 1.

[0029] In use, by setting the connecting rod 11, when the threaded cylinder 19 slides on the outer wall of the threaded rod 10, the handle 1 will slide on the outside of the wrench body 2.

[0030] One end of the wrench body 2 extends to the outside of the handle 1 and is provided with a wrench head 3. A second motor 12 is installed on one side of the bottom of the wrench head 3. A lithium battery 7 is installed on the bottom of the wrench head 3 on the side of the second motor 12 away from the bearing 15. A charging port 6 is provided at the bottom of the wrench head 3 where the lithium battery 7 is located. The output end of the charging port 6 is electrically connected to the input end of the lithium battery 7.

[0031] During use, the lithium battery 7 can be charged through the charging port 6.

[0032] The output end of the second motor 12 is connected to a second rotating shaft 13 via a coupling. A drive gear 14 is installed at the top of the second rotating shaft 13. A bearing 15 is provided at the bottom of the wrench head 3 on one side of the second motor 12. A driven gear 16 is rotatably installed at the top of the bearing 15. The driven gear 16 meshes with the drive gear 14. A linkage shaft 17 is provided at the center of the top of the driven gear 16. The top of the linkage shaft 17 extends to the outside of the wrench head 3 and is provided with a ratchet sleeve 4. A ratchet groove 401 is provided inside the ratchet sleeve 4.

[0033] In use, the ratchet groove 401 is provided so that the ratchet sleeve 4 can be fitted and installed on the outside of the ratchet component;

[0034] A control panel 5 is installed on one side of the top of the handle 1. The output terminal of the microcontroller inside the control panel 5 is electrically connected to the input terminal of the second motor 12.

[0035] In this embodiment, the lithium battery 7 is first charged by connecting an external charging head and charging cable through the charging port 6. The lithium battery 7 then powers the entire ratchet wrench, allowing it to be operated without an external power cord, thus improving its portability and flexibility. Next, the first motor 8 drives the threaded rod 10 to rotate via the first rotating shaft 9, causing the threaded cylinder 19 to slide along the outer wall of the threaded rod 10. The threaded cylinder 19, via the connecting rod 11, causes the handle 1 to slide along the outside of the wrench body 2, allowing it to be used... Users can easily adjust the length of the ratchet wrench's grip portion according to personal preference or work requirements, making it easy for them to comfortably hold and operate the wrench. Finally, the second motor 12 drives the drive gear 14 to rotate via the second rotating shaft 13, causing the drive gear 14 to drive the driven gear 16 to rotate slowly. The driven gear 16 then drives the ratchet sleeve 4 to rotate synchronously via the linkage shaft 17. When the ratchet groove 401 is engaged with the outside of the ratchet component, the ratchet sleeve 4 can electrically turn the ratchet component, thereby improving the ratchet wrench's turning efficiency and completing the use of the ratchet wrench.

Claims

1. A lithium battery ratchet wrench with adjustable hand length, characterized in that: Includes a handle (1), inside which a wrench body (2) is movably mounted. One end of the wrench body (2) extends to the outside of the handle (1) and has a wrench head (3). A second motor (12) is mounted on one side of the bottom of the wrench head (3). The output end of the second motor (12) is connected to a second rotating shaft (13) via a coupling. A drive gear (14) is mounted on the top of the second rotating shaft (13). A bearing (15) is provided at the bottom of the wrench head (3) on one side of the second motor (12). The bearing (15) has a driven gear (16) rotatably mounted on its top end. The driven gear (16) meshes with the driving gear (14). A linkage shaft (17) is provided at the center of the top end of the driven gear (16). The top end of the linkage shaft (17) extends to the outside of the wrench head (3) and is provided with a ratchet sleeve (4). A control panel (5) is installed on one side of the top end of the handle (1). The output end of the microcontroller inside the control panel (5) is electrically connected to the input end of the second motor (12).

2. The adjustable grip length lithium-ion ratchet wrench according to claim 1, characterized in that: A first motor (8) is installed on the inner wall of one side of the wrench body (2), and the input end of the first motor (8) is electrically connected to the output end of the microcontroller inside the control panel (5).

3. The adjustable length lithium battery ratchet wrench of claim 2, wherein: The output end of the first motor (8) is equipped with a first rotating shaft (9) via a coupling, and the end of the first rotating shaft (9) away from the first motor (8) is provided with a threaded rod (10).

4. The adjustable length lithium battery ratchet wrench of claim 3, wherein: A limiting disk (18) is fixed at one end of the threaded rod (10) away from the first rotating shaft (9), and a threaded cylinder (19) is threadedly installed on the outer wall of one side of the threaded rod (10).

5. The adjustable hand length lithium battery ratchet wrench according to claim 4, characterized in that: Connecting rods (11) are provided on the outer walls of both sides of the threaded cylinder (19). The end of the connecting rod (11) away from the threaded cylinder (19) extends to the outside of the wrench body (2) and connects to the inner wall of the handle (1).

6. The adjustable hand length lithium battery ratchet wrench of claim 1, wherein: The ratchet sleeve (4) has a ratchet groove (401) inside.

7. The adjustable hand length lithium battery ratchet wrench of claim 1, wherein: A lithium battery (7) is installed at the bottom of the wrench head (3) on the side of the second motor (12) away from the bearing (15). A charging port (6) is provided at the bottom of the wrench head (3) at the location of the lithium battery (7). The output end of the charging port (6) is electrically connected to the input end of the lithium battery (7).

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