Electric screwdriver with high safety

Abstract

The utility model relates to the technical field of electric screwdrivers, and discloses a high-safety electric screwdriver which comprises a main body cylinder, the bottom side of the main body cylinder is fixedly connected with a connecting column, the top side of the connecting column is fixedly connected with a supporting cylinder, and the front end and the rear end of the supporting cylinder are each provided with a right-angle opening. Two sliding blocks are fixedly connected to the inner wall of the top end of the main body cylinder, sliding assemblies are arranged at the front end and the rear end of the supporting cylinder, side blocks are fixedly connected to the left sides and the right sides of the sliding assemblies, stand columns are slidably connected to the inner walls of the side blocks, and first springs are fixedly connected to the top sides of the side blocks. According to the electric screwdriver, the sliding block can be driven to rotate between the supporting cylinder and the connecting column through the main body cylinder, the situation that a tool suddenly deflects due to counter-acting force generated after a screw is rotated by the electric screwdriver bit due to direct contact, and the hand of an operator is injured is avoided, and then the safety of the electric screwdriver is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric screwdrivers, in particular to an electric screwdriver with high safety. Background Art

[0002] The most secure electric screwdriver is the intelligent electric screwdriver, which significantly improves the safety and accuracy of operation by integrating high-precision sensors and intelligent control systems. Intelligent electric screwdrivers, also known as servo electric screwdrivers or intelligent electric screwdrivers, play a vital role in modern manufacturing. Especially in industries with extremely high requirements for screw tightening quality, such as automobile manufacturing and electronic equipment assembly, intelligent electric screwdrivers ensure that every screw can be tightened correctly, which directly affects the safety and quality of the final product.

[0003] After searching, the Chinese patent document announcement number: CN204171935U discloses an electric screwdriver, including: a motor, a handle housing, a transmission device, and an output shaft. The electric motor and the transmission device are arranged in the handle housing, and the transmission device can drive the output shaft to pivot around a first axis; the electric screwdriver also includes: an operating switch that can control the operation of the motor, the operating switch has at least one operating part for the user to operate, and the arc between the two farthest points of all operating parts in the circumferential direction of the first axis is at least 60 degrees; the utility model is beneficial in that: the structure is ingenious, and the structures that realize various functions are reasonably integrated into a whole, so that the electric screwdriver of the utility model has a variety of functions that are very necessary and practical in electrical operations, avoiding efficiency losses caused by frequent replacement, and it is easy to implement and low in cost, suitable for promotion.

[0004] Regarding the above-mentioned related technologies, the inventor believes that the above patent mentioned in the beneficial effects: "The structure is ingenious, and the structures that realize various functions are reasonably integrated into a whole, so that the electric screwdriver of the utility model has a variety of functions that are very necessary and practical in electrical work, avoiding the efficiency loss caused by frequent replacement, and it is easy to implement and low in cost, suitable for promotion." Although the above patent reduces the frequency of replacement through its own ingenious design, in the specific operation process, after the electric screwdriver head completes the rotation of the screw, the electric screwdriver will generate a reaction force, causing the tool to suddenly deflect, causing damage to the operator's hands. Therefore, in response to the above shortcomings, a high-safety electric screwdriver is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose an electric screwdriver with high safety, aiming to improve the problem in the prior art that the device is directly held, resulting in the electric screwdriver generating a reaction force after the device is completed, causing the tool to suddenly deflect, resulting in damage to the user's hand.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A highly safe electric screwdriver comprises a main body tube, a connecting column is fixedly connected to the bottom side of the main body tube, a supporting tube is fixedly connected to the top side of the connecting column, right-angle openings are provided at both the front and rear ends of the supporting tube, two sliding blocks are fixedly connected to the top inner wall of the main body tube, sliding components are provided at both the front and rear ends of the supporting tube, side blocks are fixedly connected to the left and right sides of the sliding components, columns are slidably connected to the inner walls of the side blocks, a spring is fixedly connected to the top side of the side blocks, side plates are fixedly connected all around the main body tube, a fixing ring is provided on the bottom side of the connecting column, the bottom end of the fixing ring is rotatably connected to an electric screwdriver head, and an electric screwdriver rod is fixedly connected to the bottom side of the electric screwdriver head.

[0008] As a further description of the above technical solution:

[0009] The connecting column is fixedly connected with vertical poles on all sides, the external sleeve of the vertical pole is provided with spring 2, the external side of the vertical pole is provided with a pressing component, the pressing component is fixedly connected with connecting rods on all sides, and the far sides of the connecting rods are fixedly connected with handle rings.

[0010] As a further description of the above technical solution:

[0011] The two sliding assemblies each comprise an arc-shaped plate, the outer portions of the two arc-shaped plates are respectively slidably connected to the inner walls at the front and rear ends of the support tube, and a force-bearing block is fixedly connected to the bottom side of the arc-shaped plate.

[0012] As a further description of the above technical solution:

[0013] The adjacent sides of each two side blocks are respectively fixedly connected to the left and right sides of one of the arc-shaped plates, and the outer sides of the two sliding blocks are respectively slidably connected to the inner walls at the front and rear ends of the support tube.

[0014] As a further description of the above technical solution:

[0015] The bottom side of the force bearing block contacts the top side of the sliding block, and the bottom side of the arc plate contacts the top side of the sliding block.

[0016] As a further description of the above technical solution:

[0017] The pressing assembly comprises a plurality of sliding blocks, the interior of the sliding blocks is slidably connected to the exterior of the vertical pole, and a protective tube is fixedly connected to the far side of the plurality of sliding blocks.

[0018] As a further description of the above technical solution:

[0019] The outsides of the plurality of sliding blocks are respectively slidably connected to the inner walls around the connecting column, and the bottom side of the second spring is fixedly connected to the top side of the sliding block.

[0020] As a further description of the above technical solution:

[0021] The inner wall of the protective tube is slidably connected to the outside of the connecting column, a switch is arranged on the top side of the supporting tube, and a circular ring is fixedly connected to the bottom side of the main body tube.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, the main body tube can drive the sliding block to rotate between the supporting tube and the connecting column, so as to avoid direct contact, which may cause the reaction force generated by the electric screwdriver head after the screw is turned, causing the tool to deflect suddenly, thereby causing damage to the operator's hand, thereby improving the safety of the device; at the same time, the column can store elastic potential energy, and then give the arc plate a force in the opposite direction to resist the engaged sliding block, so that the operation can be carried out quickly without power, so that the device can not only improve the overall safety but also improve the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of an electric screwdriver with high safety proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the connecting column structure of a highly safe electric screwdriver proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of a support cylinder of an electric screwdriver with high safety proposed by the utility model;

[0027] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 5 for Figure 1 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Main tube; 2. Connecting column; 3. Support tube; 4. Right-angle opening; 5. Sliding block; 6. Force block; 7. Arc plate; 8. Side block; 9. Vertical column; 10. Spring 1; 11. Side plate; 12. Ring; 13. Fixed ring; 14. Electric screwdriver head; 15. Electric screwdriver rod; 16. Vertical rod; 17. Spring 2; 18. Sliding block; 19. Protective tube; 20. Connecting rod; 21. Handle ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 , Figure 3 and Figure 4 , the utility model provides an embodiment: an electric screwdriver with high safety, including a main body tube 1, which is the core part of the whole tool, used to accommodate and support other components, the bottom side of the main body tube 1 is fixedly connected with a connecting column 2, this connecting column 2 not only plays a connecting role, but also a bridge between the support tube 3 and the main body tube 1, the top side of the connecting column 2 is fixedly connected with the support tube 3, fixedly connected together, used to enhance the overall stability, the front and rear ends of the support tube 3 are provided with right-angle openings 4, used to limit the activity space of the arc plate 7, the top inner wall of the main body tube 1 is fixedly connected with two sliding blocks 5, the sliding blocks 5 are pushed by the main body tube 1 to slide, the front and rear ends of the support tube 3 are provided with sliding components, the two sliding components include arc plates 7, the outer parts of the two arc plates 7 are respectively slidably connected to the front and rear inner walls of the support tube 3;

[0033] The arc plate 7 is restricted by the support tube 3, so that the arc plate 7 can slide vertically, and the bottom side of the arc plate 7 is fixedly connected with a force-bearing block 6. After the force-bearing block 6 is subjected to force, the arc plate 7 is pushed to slide, and the bottom side of the force-bearing block 6 contacts the top side of the sliding block 5. The sliding block 5 pushes the force-bearing block 6 to slide, and the bottom side of the arc plate 7 contacts the top side of the sliding block 5. The left and right sides of the sliding assembly are fixedly connected with side blocks 8, and the adjacent sides of each two side blocks 8 are respectively fixedly connected to the left and right sides of one of the arc plates 7. The side blocks 8 are driven to slide by the sliding of the arc plate 7. The outer sides of the two sliding blocks 5 are respectively slidably connected to the inner walls of the front and rear ends of the support tube 3, and the inner walls of the side blocks 8 are slidably connected with columns 9. The side blocks 8 can slide vertically through the restriction of the columns 9. The top side of the side blocks 8 is fixedly connected with a spring 10, which limits the spring 10 so that the spring 10 can be evenly stressed. The four sides of the main body tube 1 are fixedly connected with side plates 11 for easy gripping by users.

[0034] Reference Figure 1 , Figure 2 and Figure 5A fixing ring 13 is provided on the bottom side of the connecting column 2 to facilitate the installation of the electric screwdriver head 14. The bottom end of the fixing ring 13 is rotatably connected to the electric screwdriver head 14. The bottom side of the electric screwdriver head 14 is fixedly connected to an electric screwdriver rod 15, which is the part for actually tightening or loosening the screws. The connecting column 2 is fixedly connected to a vertical rod 16 all around. A spring 2 17 is sleeved on the outside of the vertical rod 16 to limit the spring 2 17 so that the spring 2 17 can be evenly stressed. A pressing assembly is provided on the outside of the vertical rod 16. The pressing assembly includes a plurality of sliding blocks 18. The outer portions of the plurality of sliding blocks 18 are respectively slidably connected to the inner walls around the connecting column 2. The sliding blocks 18 can be vertically moved by the restriction of the connecting column 2. Straight sliding, through the restriction of the connecting column 2, the sliding block 18 can slide vertically, the bottom side of the spring 17 is fixedly connected to the top side of the sliding block 18, the inner sliding block 18 is connected to the outside of the vertical pole 16, and the far side of the multiple sliding blocks 18 is fixedly connected with a protective tube 19, which drives the sliding block 18 to slide. The inner wall of the protective tube 19 is connected to the outside of the connecting column 2 in a sliding manner. A switch is provided on the top side of the support tube 3, and a circular ring 12 is fixedly connected to the bottom side of the main tube 1 for providing support force to the main tube 1. The pressing component is fixedly connected with connecting rods 20 all around, and the far side of the multiple connecting rods 20 is fixedly connected with a grip ring 21.

[0035] Working principle: we use the electronic components inside the support tube 3 to drive the electric screwdriver head 14 to rotate, thereby driving the electric screwdriver rod 15 to tighten or loosen the screw, and then hold the side plate 11. After the electric screwdriver head 14 has completed turning the screw, the electric screwdriver will generate a reaction force to cause the main tube 1 to rotate on the outside of the connecting column 2, so that the main tube 1 can drive the sliding block 5 to rotate between the supporting tube 3 and the connecting column 2, avoiding direct contact, resulting in the reaction force generated after the electric screwdriver head 14 has completed turning the screw, causing the tool to suddenly deflect, causing damage to the operator's hand, thereby improving the safety of the device. At the same time, the main tube 1 can drive the sliding block 5 to press against the bottom side of the force-bearing block 6, and the sliding block 5 is driven by the main tube 1 to squeeze the force-bearing block 6. After squeezing to a suitable position, the main tube 1 is rotated to drive the sliding block 5 to rotate clockwise, so that the sliding block 5 can be engaged with the inner wall of the right-angle opening 4, and the force-bearing block 6 is pushed by the force to form an arc. At the same time as the plate 7, the curved plate 7 will also drive the side block 8 to slide on the outside of the column 9 and squeeze the column 9, so that the column 9 can store elastic potential energy, and then give the curved plate 7 a force in the opposite direction to resist the engaged sliding block 5, so that no power is required and it can work quickly, so that the device can not only improve the overall safety but also improve the flexibility of the device, and when the electric screw rod 15 is working, facing different working scenes, by holding the protective tube 19 to drive the connecting rod 20 to slide, thereby driving the protective tube 19 to slide on the outside of the connecting column 2, so that the protective tube 19 can block the sparks generated by friction during work to avoid splashing to the hands, thereby further improving the safety of the device, and the protective tube 19 will also drive the sliding block 18 to slide on the outside of the column 16 and squeeze the spring 2 17, so that the spring 2 17 can store elastic potential energy, so as to provide a reset force for the protective tube 19, thereby further improving the scope of application of the device.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly safe electric screwdriver, comprising a main body tube (1), characterized in that: The bottom side of the main body tube (1) is fixedly connected with a connecting column (2), the top side of the connecting column (2) is fixedly connected with a supporting tube (3), the front and rear ends of the supporting tube (3) are both provided with right-angle openings (4), the top inner wall of the main body tube (1) is fixedly connected with two sliding blocks (5), the front and rear ends of the supporting tube (3) are both provided with sliding components, the left and right sides of the sliding components are both fixedly connected with side blocks (8), the inner wall of the side block (8) is slidably connected with a column (9), the top side of the side block (8) is fixedly connected with a spring 1 (10), the four sides of the main body tube (1) are fixedly connected with side plates (11), the bottom side of the connecting column (2) is provided with a fixing ring (13), the bottom end of the fixing ring (13) is rotatably connected with an electric screwdriver head (14), and the bottom side of the electric screwdriver head (14) is fixedly connected with an electric screwdriver rod (15).

2. The electric screwdriver with high safety according to claim 1, characterized in that: The connecting column (2) is fixedly connected to a vertical pole (16) on all sides, a spring (17) is sleeved on the outside of the vertical pole (16), a pressing assembly is arranged on the outside of the vertical pole (16), and the pressing assembly is fixedly connected to a connecting rod (20) on all sides, and a handle ring (21) is fixedly connected to the far side of a plurality of connecting rods (20).

3. The electric screwdriver with high safety according to claim 1, characterized in that: The two sliding assemblies each comprise an arc-shaped plate (7), the outer portions of the two arc-shaped plates (7) being respectively slidably connected to the inner walls at the front and rear ends of the support tube (3), and the bottom side of the arc-shaped plate (7) being fixedly connected to a force-bearing block (6).

4. The electric screwdriver with high safety according to claim 3, characterized in that: The adjacent sides of each of the two side blocks (8) are respectively fixedly connected to the left and right sides of one of the arc-shaped plates (7), and the exteriors of the two sliding blocks (5) are respectively slidably connected to the inner walls at the front and rear ends of the support tube (3).

5. The electric screwdriver with high safety according to claim 3, characterized in that: The bottom side of the force-bearing block (6) contacts the top side of the sliding block (5), and the bottom side of the arc-shaped plate (7) contacts the top side of the sliding block (5).

6. The electric screwdriver with high safety according to claim 2, characterized in that: The pressing assembly comprises a plurality of sliding blocks (18), the interior of the sliding blocks (18) being slidably connected to the exterior of the vertical rod (16), and a protective tube (19) being fixedly connected to the far side of the plurality of sliding blocks (18).

7. The electric screwdriver with high safety according to claim 6, characterized in that: The outsides of the plurality of sliding blocks (18) are respectively slidably connected to the inner walls around the connecting column (2), and the bottom side of the second spring (17) is fixedly connected to the top side of the sliding block (18).

8. The electric screwdriver with high safety according to claim 6, characterized in that: The inner wall of the protective tube (19) is slidably connected to the outside of the connecting column (2), a switch is provided on the top side of the supporting tube (3), and a circular ring (12) is fixedly connected to the bottom side of the main body tube (1).

Images