"L" shaped inner hexagonal wrench fixed clamping device
By designing an "L"-shaped internal hex wrench fixing clamping device, the problem of unstable connection between the "L"-shaped internal hex wrench and the motor was solved, realizing fast and stable bolt disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA COAL XINJI ENERGY CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-04
AI Technical Summary
In the existing technology, L-shaped hex wrenches lack a structure that is directly connected to the electric motor drive system, resulting in unstable hand grip and low disassembly efficiency.
Design an "L"-shaped hex wrench fixing clamping device, which is adapted to the motor output shaft end by fixing the outer shell and connecting rod, and uses the first fixing bolt and the second fixing bolt to press the "L"-shaped hex wrench to achieve a stable connection with the motor.
This achieves a stable connection between the "L"-shaped hex wrench and the electric motor, improving the stability and efficiency of bolt removal.
Smart Images

Figure CN224587947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt disassembly technology, and in particular to an "L"-shaped internal hexagonal wrench fixing and clamping device. Background Technology
[0002] In the process of removing hex socket head cap screws, an "L"-shaped hex wrench is often used. However, when manually holding an "L"-shaped hex wrench to remove screws, there is a problem of instability in the hand, which makes it easy for the "L"-shaped hex wrench to slip out of the hand during the application of force. In addition, the efficiency of manually removing screws is low. In order to improve the stability and efficiency of screw removal, an electric motor can be used to drive the rotation of the "L"-shaped hex wrench to remove the screws.
[0003] However, in the existing technology, L-shaped hex wrenches lack a structure for direct connection to the motor drive system, making it impossible to directly fix the L-shaped hex wrench to the motor. Therefore, this utility model proposes an L-shaped hex wrench fixing and clamping device to solve the above problems. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes an "L"-shaped hex wrench fixing and clamping device. One end of the "L"-shaped hex wrench can be inserted into a positioning groove and secured by a first fixing bolt and a second fixing bolt. The entire device is adapted to the output shaft of a motor via a connecting rod. The device completes the connection between the "L"-shaped hex wrench and the output shaft of the motor, enabling the motor to drive the "L"-shaped hex wrench to rotate, thus achieving rapid and stable disassembly of hex bolts.
[0005] To achieve the objectives of this utility model, the following technical solution is adopted: An "L"-shaped internal hex wrench fixing and clamping device includes a fixed housing and a connecting rod. One end of the fixed housing is provided with the connecting rod, and the end of the connecting rod is adapted to be installed with the output shaft end of a motor. The connecting rod is provided with a first opening groove. The end of the fixed housing connected to the connecting rod is provided with a second opening groove. The second opening groove is provided with a fixed long groove. The first opening groove, the second opening groove, and the fixed long groove are connected. An adjustable support component is movably provided at one end of the fixed housing opposite to the connecting rod. The adjustable support component is concentrically arranged with the fixed long groove. The top of the fixed housing is provided with a first fixing screw hole and a second fixing screw hole, and a first fixing bolt and a second fixing bolt are respectively threaded into the first fixing screw hole and the second fixing screw hole.
[0006] A further improvement is that the fixed outer shell is cylindrical, the connecting rod is square, and the fixed outer shell and the connecting rod form a T-shaped integrated structure.
[0007] A further improvement is that an observation window is provided on the outer wall of the fixed outer shell, and the observation window is connected to the fixed long slot.
[0008] A further improvement is that the adjustable support assembly includes an adjusting support bolt and a support hole. One end of the fixed housing opposite to the connecting rod is provided with an adjusting screw hole, the adjusting screw hole is provided with an adjusting support bolt, and one end of the adjusting support bolt is provided with a support hole.
[0009] A further improvement is that the cross-section of the fixed long groove is a regular hexagon, the cross-sectional dimensions of the fixed long groove are adapted to the cross-sectional dimensions of the "L"-shaped hexagonal wrench, and the diameter of the supporting circular hole is adapted to the diagonal dimension inside the fixed long groove.
[0010] A further improvement is that the second fixing screw hole is connected to the inside of the observation window.
[0011] The beneficial effects of this utility model are as follows: This utility model uses a fixed outer shell and a connecting rod as the main components to form the main structure of the clamping device. By setting a first opening groove on the connecting rod, and by setting a second opening groove and a fixed long groove on the fixed outer shell, the first opening groove, the second opening groove and the fixed long groove are connected to form a positioning groove, so that one end of the "L"-shaped hex wrench can be inserted into the positioning groove and pressed by the first fixing bolt and the second fixing bolt. The entire device is adapted to the motor output shaft end through the connecting rod. The device completes the connection between the "L"-shaped hex wrench and the motor output shaft end, realizing the use of the motor to drive the "L"-shaped hex wrench to rotate to achieve fast and stable disassembly of hex bolts. Attached Figure Description
[0012] Figure 1 This is a three-dimensional schematic diagram of the first state of the structure of this utility model; Figure 2 This is a three-dimensional schematic diagram of the second state of the structure of this utility model; Figure 3 This is a schematic diagram of the first explosion of the structure of this utility model; Figure 4 This is a schematic diagram of the second explosion of the structure of this utility model.
[0013] The components are: 1. Fixed outer shell; 2. Connecting rod; 3. First opening slot; 4. Second opening slot; 5. Fixed long slot; 6. First fixing screw hole; 7. Second fixing screw hole; 8. First fixing bolt; 9. Second fixing bolt; 10. Observation window; 11. Adjusting support bolt; 12. Support round hole; 13. Adjusting screw hole. Detailed Implementation
[0014] To enhance understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are for illustrative purposes only and do not constitute a limitation on the scope of protection of this utility model.
[0015] Example 1 according to Figure 1-4 As shown in the figure, this embodiment proposes an "L"-shaped internal hex wrench fixing clamping device, including a fixed housing 1 and a connecting rod 2. The fixed housing 1 has a connecting rod 2 at one end, and the end of the connecting rod 2 is adapted to the output shaft end of the motor. The connecting rod 2 has a first opening groove 3. The fixed housing 1 has a second opening groove 4 at the end connected to the connecting rod 2. The second opening groove 4 has a fixed long groove 5 inside. The first opening groove 3, the second opening groove 4, and the fixed long groove 5 are connected. An adjustable support assembly is movably provided at one end of the fixed housing 1 opposite to the connecting rod 2. The adjustable support assembly is concentrically arranged with the fixed long groove 5. The top of the fixed housing 1 has a first fixing screw hole 6 and a second fixing screw hole 7. The first fixing screw hole 6 and the second fixing screw hole 7 are respectively threaded with a first fixing bolt 8 and a second fixing bolt 9.
[0016] When fixing the "L"-shaped hexagonal wrench and connecting it to the output shaft of the motor, the "L"-shaped hexagonal wrench is first inserted into the first opening slot 3, so that one end of the "L"-shaped hexagonal wrench enters the fixed long slot 5 until the bent part is inserted into the second opening slot 4. At this time, the initial positioning is completed. Then, the "L"-shaped hexagonal wrench is pressed and fixed by operating the first fixing bolt 8 and the second fixing bolt 9 respectively. Finally, the entire device together with the "L"-shaped hexagonal wrench is fixed to the output shaft of the motor by connecting the connecting rod 2. The hexagonal bolt can then be disassembled by driving the "L"-shaped hexagonal wrench to rotate through the motor.
[0017] The fixed housing 1 is cylindrical, and the connecting rod 2 is square. The fixed housing 1 and the connecting rod 2 form a T-shaped integrated structure. The square connecting rod 2 is used to connect to the output shaft end of the motor. The integrated fixed housing 1 and connecting rod 2 have the advantage of high structural stability.
[0018] An observation window 10 is provided on the outer wall of the fixed housing 1, and the observation window 10 is connected to the fixed elongated groove 5. By setting the observation window 10, it is possible to observe whether the "L"-shaped internal hex wrench is deformed due to high torque, and to monitor the safety of the device.
[0019] Example 2 according to Figure 1-4As shown in the figure, this embodiment proposes an "L"-shaped internal hex wrench fixing clamping device, including a fixed housing 1 and a connecting rod 2. The fixed housing 1 has a connecting rod 2 at one end, and the end of the connecting rod 2 is adapted to the output shaft end of the motor. The connecting rod 2 has a first opening groove 3. The fixed housing 1 has a second opening groove 4 at the end connected to the connecting rod 2. The second opening groove 4 has a fixed long groove 5 inside. The first opening groove 3, the second opening groove 4, and the fixed long groove 5 are connected. An adjustable support assembly is movably provided at one end of the fixed housing 1 opposite to the connecting rod 2. The adjustable support assembly is concentrically arranged with the fixed long groove 5. The top of the fixed housing 1 has a first fixing screw hole 6 and a second fixing screw hole 7. The first fixing screw hole 6 and the second fixing screw hole 7 are respectively threaded with a first fixing bolt 8 and a second fixing bolt 9.
[0020] The adjustable support assembly includes an adjusting support bolt 11 and a support hole 12. An adjusting screw hole 13 is provided at one end of the fixed housing 1 opposite to the connecting rod 2. The adjusting support bolt 11 is located inside the adjusting screw hole 13, and the supporting hole 12 is located at one end of the adjusting support bolt 11. The fixed elongated groove 5 has a regular hexagonal cross-section, and its cross-sectional dimensions are adapted to the cross-sectional dimensions of an "L"-shaped hexagonal wrench. The diameter of the support hole 12 is adapted to the diagonal dimension inside the fixed elongated groove 5. This invention improves the flexibility of the device by providing an adjusting screw hole 13 at one end of the fixed housing 1 opposite to the connecting rod 2, and by rotating the support bolt 11 so that its tail extends different lengths inside the observation window 10, allowing the support hole 12 at one end to fix one end of an "L"-shaped hexagonal wrench of different lengths.
[0021] The second fixing screw hole 7 is connected to the inside of the observation window 10. This setting facilitates the use of the second fixing bolt 9 to stably press the "L"-shaped hex wrench. The "L"-shaped hex wrench is not only positioned by the pressing force of the first fixing bolt 8 at the first fixing bolt 8, but also by the positioning of the fixing groove 5, which helps to improve the positioning stability.
[0022] This utility model uses a fixed outer shell 1 and a connecting rod 2 as the main components to form the main structure of the clamping device. A first opening groove 3 is provided on the connecting rod 2, and a second opening groove 4 and a fixed long groove 5 are provided on the fixed outer shell 1. The first opening groove 3, the second opening groove 4, and the fixed long groove 5 are connected to form a positioning groove, so that one end of the "L"-shaped hex wrench can be inserted into the positioning groove and pressed by the first fixing bolt 8 and the second fixing bolt 9. The entire device is adapted to the motor output shaft end through the connecting rod 2. The device completes the connection between the "L"-shaped hex wrench and the motor output shaft end, realizing the use of the motor to drive the "L"-shaped hex wrench to rotate to achieve quick and stable disassembly of hex bolts.
[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An "L"-shaped internal hexagonal wrench fixing and clamping device, characterized in that: The device includes a fixed housing (1) and a connecting rod (2). One end of the fixed housing (1) is provided with the connecting rod (2). The end of the connecting rod (2) is adapted to be installed with the output shaft end of the motor. The connecting rod (2) is provided with a first opening groove (3). The end of the fixed housing (1) connected to the connecting rod (2) is provided with a second opening groove (4). The second opening groove (4) is provided with a fixed long groove (5). The first opening groove (3), the second opening groove (4) and the fixed long groove (5) are connected. One end of the fixed housing (1) opposite to the connecting rod (2) is movably provided with an adjustable support component. The adjustable support component is concentrically arranged with the fixed long groove (5). The top of the fixed housing (1) is provided with a first fixing screw hole (6) and a second fixing screw hole (7), and a first fixing bolt (8) and a second fixing bolt (9) are respectively threaded into the first fixing screw hole (6) and the second fixing screw hole (7).
2. The "L"-shaped internal hexagonal wrench fixing and clamping device according to claim 1, characterized in that: The fixed outer shell (1) is cylindrical, and the connecting rod (2) is square. The fixed outer shell (1) and the connecting rod (2) form a T-shaped integrated structure.
3. The "L"-shaped internal hexagonal wrench fixing and clamping device according to claim 1, characterized in that: The fixed outer shell (1) has an observation window (10) on its outer wall, and the observation window (10) is connected to the fixed long groove (5).
4. The "L"-shaped internal hexagonal wrench fixing and clamping device according to claim 1, characterized in that: The adjustable support assembly includes an adjusting support bolt (11) and a support round hole (12). One end of the fixed outer shell (1) opposite to the connecting rod (2) is provided with an adjusting screw hole (13). The adjusting screw hole (13) is provided with an adjusting support bolt (11), and one end of the adjusting support bolt (11) is provided with a support round hole (12).
5. The "L"-shaped internal hexagonal wrench fixing and clamping device according to claim 4, characterized in that: The fixed long groove (5) has a regular hexagonal cross-section. The cross-sectional dimensions of the fixed long groove (5) are adapted to the cross-sectional dimensions of the "L"-shaped internal hexagonal wrench. The diameter of the supporting circular hole (12) is adapted to the internal diagonal dimensions of the fixed long groove (5).
6. The "L"-shaped internal hexagonal wrench fixing and clamping device according to claim 1, characterized in that: The second fixing screw hole (7) is connected to the inside of the observation window (10).