An electric screwdriver with an adjustable tip angle

Abstract

This utility model discloses an electric screwdriver with an adjustable blade angle, including a housing and a rotating mechanism. The housing has a connecting seat fixedly connected to its front side, and an end cap threadedly connected to the front end of the connecting seat. The front side of the end cap has symmetrically distributed arc-shaped strips. The rotating mechanism includes a universal joint, a rotating shaft, and a blade. The universal joint is located inside the end cap, and the rotating shaft is fixedly connected to the universal joint fork at its front end. The blade is inserted into the front end of the rotating shaft, which is located between the two arc-shaped strips. A battery is placed inside the rear side of the housing. A control switch is also included, located on the outer arc surface of the housing. The input end of the control switch is electrically connected to the output end of the battery. The rotating mechanism also includes a motor and a connecting shaft. The motor is placed inside the front side of the housing. This electric screwdriver with an adjustable blade angle allows for adjustment of the blade angle by using a universal joint, facilitating screw driving in narrow spaces.

Description

Technical Field

[0001] This utility model relates to the field of electric screwdriver technology, specifically an electric screwdriver with an adjustable screwdriver tip angle. Background Technology

[0002] An electric screwdriver is a portable power tool that uses electricity to drive a built-in motor to rotate the screwdriver head for tightening or loosening screws. Compared to traditional manual screwdrivers, its core advantages lie in significantly improved efficiency and greatly reduced operator workload, making it particularly suitable for batch operations or long-term tasks. Its applications are extremely wide-ranging, from home DIY and electronics repair to professional fields such as automotive, woodworking, and construction. Electric screwdrivers are indispensable and efficient tools in modern production, maintenance, and daily life, greatly enhancing convenience and productivity.

[0003] However, electric screwdrivers have a battery and motor inside, and the central axis of the screwdriver head coincides with the central axis of the motor, making the electric screwdriver relatively long. When installing screws in narrow areas, the electric screwdriver cannot be inserted due to space limitations, making it inconvenient to use. Therefore, we propose an electric screwdriver with an adjustable screwdriver head angle. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an electric screwdriver with an adjustable blade angle. By setting a universal joint, the blade angle can be adjusted, which is convenient for screwing in narrow positions and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric screwdriver with an adjustable blade angle, comprising a housing and a rotating mechanism; Housing: A connecting seat is fixedly connected to its front side, and an end cap is threaded to the front end of the connecting seat. The front side of the end cap is provided with symmetrically distributed arc-shaped strips. Rotating mechanism: It includes a universal joint, a rotating shaft and a cutting head. The universal joint is located inside the end cover. The universal joint fork at the front end of the universal joint is fixedly connected to the rotating shaft. The cutting head is inserted into the front end of the rotating shaft. The rotating shaft is located between two arc-shaped bars. The angle of the cutting head can be adjusted by setting the universal joint, which is convenient for screwing in narrow positions.

[0006] Furthermore, a battery is placed inside the rear of the casing to provide power.

[0007] Furthermore, it also includes a control switch, which is located on the outer arc surface of the housing. The input end of the control switch is electrically connected to the output end of the battery to control electrical appliances.

[0008] Furthermore, the rotating mechanism also includes a motor and a connecting shaft. The motor is placed inside the front of the housing. The universal joint fork at the rear end of the universal joint is fixedly connected to the connecting shaft. The front end of the motor's output shaft is inserted into the rear end of the connecting shaft. The input end of the motor is electrically connected to the output end of the control switch, thereby driving the rotating shaft to rotate.

[0009] Furthermore, the front side of the housing is fixedly connected with symmetrically distributed arc-shaped plates. The outer arc surface of the arc-shaped plates and the inner arc surface of the arc-shaped strips on the same side form an arc-shaped groove. The front end of the rotating shaft is rotatably connected to a limiting seat. The limiting seat is slidably connected between the two arc-shaped plates. Pins are fixedly connected to both sides of the limiting seat. The pins are slidably connected between the arc-shaped grooves on the same side, thereby driving the rotating shaft to adjust the angle.

[0010] Furthermore, each pin has a threaded knob in the middle, and the inner sides of the two knobs respectively fit against the sides of the arc strip and arc plate away from the central axis of the end cover to fix the limiting seat.

[0011] Furthermore, the outer arc surface at the rear end of the end cap is provided with evenly distributed ribs to facilitate tightening the end cap.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This electric screwdriver with adjustable blade angle has the following advantages: A universal joint is installed between the motor's output shaft and the screwdriver's rotating shaft to achieve transmission at different angles. The limit seat slides between two arc-shaped plates and can be fixed in position by a knob, thus fixing the position of the screwdriver and the rotating shaft as a whole and allowing for screwdriver angle adjustment. This makes it easy to use this electric screwdriver in narrow spaces. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the limiting seat of this utility model.

[0014] In the diagram: 1. Housing, 2. Connecting seat, 3. Control switch, 4. Rotating mechanism, 41. Motor, 42. Connecting shaft, 43. Universal joint, 44. Rotating shaft, 45. Cutting head, 5. End cover, 6. Arc strip, 7. Arc plate, 8. Limit seat, 9. Pin, 10. Knob, 11. Battery, 12. Rib. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-3 This embodiment provides a technical solution: an electric screwdriver with an adjustable blade angle, including a housing 1 and a rotating mechanism 4; Housing 1: A connecting seat 2 is fixedly connected to its front side. An end cap 5 is threaded to the front end of the connecting seat 2. The front side of the end cap 5 is provided with symmetrically distributed arc-shaped strips 6. A battery 11 is placed inside the rear side of the housing 1. The outer arc surface of the rear end of the end cap 5 is provided with evenly distributed ribs 12. Rotating mechanism 4: It includes a universal joint 43, a rotating shaft 44, and a cutter head 45. The universal joint 43 is located inside the end cover 5. The universal joint fork at the front end of the universal joint 43 is fixedly connected to the rotating shaft 44. The cutter head 45 is inserted into the front end of the rotating shaft 44. The rotating shaft 44 is located between two arc-shaped bars 6. In use, the rotating shaft 44 is manually turned to drive the limiting seat 8 to slide between the two arc-shaped plates 7. The pin 9 is slidably connected between the arc-shaped grooves on the left and right sides respectively to prevent the limiting seat 8 from sliding up and down on the outer arc surface of the rotating shaft 44. After the angle is appropriate, the knob 10 is tightened. The opposite inner surfaces of the two knobs 10 are respectively attached to the sides of the arc-shaped bars 6 and the arc-shaped plates 7 away from the central axis of the end cover 5 to fix the position of the limiting seat 8 and realize the fixation of the adjustable angle of the rotating shaft 44. The rotating mechanism 4 also includes a motor 41 and a connecting shaft 42. The motor 41 is placed inside the front side of the housing 1. The universal joint fork at the rear end of the universal joint 43 is fixedly connected to the connecting shaft 42. The front end of the output shaft of the motor 41 is inserted into the rear end of the connecting shaft 42. The input end of the motor 41 is electrically connected to the output end of the control switch 3. After the cutter head 45 is inserted, the front end of the cutter head 45 is inserted into the nut of the corresponding screw. The motor 41 is started by the control switch 3. The output shaft of the motor 41 drives the connecting shaft 42 to rotate. Through the transmission of the universal joint 43, the rotating shaft 44 and the cutter head 45 are rotated as a whole, and the screw is tightened. A symmetrically distributed arc-shaped plate 7 is fixedly connected to the front side of the housing 1. The outer arc surface of the arc-shaped plate 7 and the inner arc surface of the arc-shaped strip 6 on the same side form an arc-shaped groove. The front end of the rotating shaft 44 is rotatably connected to a limiting seat 8. The limiting seat 8 is slidably connected between the two arc-shaped plates 7. Pins 9 are fixedly connected to both sides of the limiting seat 8. The pins 9 are slidably connected between the arc-shaped grooves on the same side. A knob 10 is threadedly connected to the middle of each pin 9. The opposite inner surfaces of the two knobs 10 are respectively in contact with the sides of the arc-shaped strip 6 and the arc-shaped plate 7 away from the central axis of the end cover 5. When assembling this electric screwdriver with adjustable tip angle, first install the arc plate 7 to the left and right ends of the front side of the end cover 5 with bolts. During installation, place the whole consisting of the limit seat 8 and the pin 9 between the two arc plates 7. The pin 9 is located inside the adjacent arc grooves. Then, the connecting shaft 42 is inserted into the front end of the output shaft of the motor 41. Then, screw on the end cover 5. The rotating shaft 44 passes through the gap between the two arc strips 6 and through the through hole in the middle of the limit seat 8. The ribs 12 on the outer arc surface of the end cover 5 increase the friction force, making it easier to tighten the end cover 5. The installation is then complete.

[0017] It also includes a control switch 3, which is located on the outer arc surface of the housing 1, and the input end of the control switch 3 is electrically connected to the output end of the battery 11.

[0018] The working principle of the electric screwdriver with adjustable tip angle provided by this utility model is as follows: When assembling this electric screwdriver with adjustable tip angle, first install the arc plate 7 to the left and right ends of the front side of the end cover 5 with bolts. During installation, place the whole consisting of the limiting seat 8 and the pin 9 between the two arc plates 7. The pin 9 is located in the adjacent arc grooves. Then, the connecting shaft 42 is inserted into the front end of the output shaft of the motor 41. Then, screw on the end cover 5. The rotating shaft 44 passes through the gap between the two arc strips 6 and through the through hole in the middle of the limiting seat 8. The ribs 12 on the outer arc surface of the end cover 5 increase the friction force, making it easier to tighten the end cover 5 and complete the installation. In use, manually rotate the shaft 44 to move the limit seat 8 between the two arc plates 7. The pin 9 is slidably connected between the arc grooves on the left and right sides to prevent the limit seat 8 from sliding up and down on the outer arc surface of the shaft 44. After the angle is appropriate, tighten the knob 10. The inner sides of the two knobs 10 are respectively attached to the sides of the arc strip 6 and the arc plate 7 away from the central axis of the end cover 5 to fix the position of the limit seat 8 and fix the angle adjustment of the shaft 44. After inserting the cutting head 45, the front end of the cutting head 45 is inserted into the nut of the corresponding screw. The motor 41 is started by controlling the switch 3. The output shaft of the motor 41 drives the connecting shaft 42 to rotate. Through the transmission of the universal joint 43, the rotating shaft 44 and the cutting head 45 are rotated as a whole, and the screw is tightened.

[0019] It is worth noting that the motor 41 disclosed in the above embodiments can be freely configured according to the actual application scenario, and the control switch 3 is provided with a switch button corresponding to the motor 41 for controlling its switching operation.

[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electric screwdriver with an adjustable tip angle, characterized in that: Includes a housing (1) and a rotating mechanism (4); The housing (1) has a connecting seat (2) fixedly connected to its front side. The front end of the connecting seat (2) is threadedly connected to an end cap (5). The front side of the end cap (5) is provided with arc-shaped strips (6) symmetrically distributed on the left and right sides. Rotating mechanism (4): It includes a universal joint (43), a rotating shaft (44) and a cutter head (45). The universal joint (43) is located inside the end cover (5). The universal joint fork at the front end of the universal joint (43) is fixedly connected to the rotating shaft (44). The front end of the rotating shaft (44) is inserted with the cutter head (45). The rotating shaft (44) is located between two arc-shaped bars (6).

2. The electric screwdriver with adjustable tip angle according to claim 1, characterized in that: The battery (11) is placed inside the rear side of the housing (1).

3. The electric screwdriver with adjustable tip angle according to claim 2, characterized in that: It also includes a control switch (3), which is disposed on the outer arc surface of the housing (1), and the input end of the control switch (3) is electrically connected to the output end of the battery (11).

4. An electric screwdriver with an adjustable tip angle according to claim 3, characterized in that: The rotating mechanism (4) also includes a motor (41) and a connecting shaft (42). The motor (41) is placed inside the front side of the housing (1). The universal joint fork at the rear end of the universal joint (43) is fixedly connected to the connecting shaft (42). The front end of the output shaft of the motor (41) is inserted into the rear end of the connecting shaft (42). The input end of the motor (41) is electrically connected to the output end of the control switch (3).

5. An electric screwdriver with an adjustable tip angle according to claim 1, characterized in that: The front side of the housing (1) is fixedly connected to an arc plate (7) symmetrically distributed on the left and right. The outer arc surface of the arc plate (7) and the inner arc surface of the arc strip (6) on the same side on the left and right form an arc groove. The front end of the rotating shaft (44) is rotatably connected to a limiting seat (8). The limiting seat (8) is slidably connected between the two arc plates (7). Pins (9) are fixedly connected on both the left and right sides of the limiting seat (8). The pins (9) are slidably connected between the arc grooves on the same side on the left and right.

6. An electric screwdriver with an adjustable tip angle according to claim 5, characterized in that: The pin (9) is threaded with a knob (10) in the middle. The inner sides of the two knobs (10) are respectively attached to the sides of the arc strip (6) and the arc plate (7) away from the central axis of the end cover (5).

7. An electric screwdriver with an adjustable tip angle according to claim 1, characterized in that: The outer arc surface of the end cap (5) is provided with evenly distributed ribs (12).

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