Convenient multifunctional screwdriver with four-claw rotating shaft ratchet wheel

Abstract

The utility model relates to the field of hardware tools, and discloses a convenient multifunctional screwdriver with a four-claw rotating shaft ratchet wheel, which comprises a multifunctional inner shaft device, four handle shells, a four-claw rotating shaft ratchet wheel mechanism, a screwdriver head and a connecting piece, the four handle shells form a hollow cylinder, connecting pieces are arranged at the shaft ends of the handle shells and connected with the handle shells through threads in a matched mode, internal spring pieces are arranged in the connecting pieces and correspondingly connected with the multifunctional inner shaft device in a matched mode, and a four-claw rotating shaft ratchet mechanism is arranged on the side, away from the handle shells, of each connecting piece. According to the convenient multifunctional screwdriver with the four-claw rotating shaft ratchet wheel, the multifunctional inner shaft device is arranged, various screwdrivers can be effectively stored, the screwdrivers are prevented from falling off due to the fact that the multifunctional inner shaft device is arranged on the convenient multifunctional screwdriver with the four-claw rotating shaft ratchet wheel, and the multifunctional screwdriver with the four-claw rotating shaft ratchet wheel is convenient to use. The practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of hardware tools, specifically a convenient multi-functional screwdriver with a four-jaw swivel ratchet. Background Technology

[0002] The four-jaw swivel ratchet screwdriver is a powerful and practical tool with many significant functions. It uses a high-strength chrome vanadium steel four-jaw swivel that can firmly clamp the screwdriver head from multiple directions. Even with large torque, the screwdriver head is not easily loosened or dislodged, ensuring stable and continuous operation. It is ideal for high-precision work such as electronic product repair and precision instrument assembly. The ratchet mechanism is ingeniously designed; no repeated insertion and removal are required during operation. Simply turning the handle back and forth achieves continuous tightening or loosening. When dealing with a large number of screws, it saves a lot of time and effort. It is also very suitable for automotive repair and maintenance. Moreover, by adjusting the mechanism to switch the ratchet direction, it can operate flexibly in complex environments such as narrow spaces and high-altitude operations.

[0003] However, screwdrivers all have a common problem: the storage of the screwdriver heads. Although they come with various types and sizes of screwdriver heads, such as Phillips, slotted, hex, and star screw heads, they are easy to fall out and difficult to store, which means that screwdriver heads often need to be purchased. To address this, we have proposed a convenient multi-functional screwdriver with a four-jaw swivel ratchet. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a convenient multi-functional screwdriver with a four-jaw swivel ratchet, thus solving the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a convenient multi-functional screwdriver with a four-jaw swivel ratchet, comprising a multi-functional inner shaft device, a handle shell, a four-jaw swivel ratchet mechanism, a cutting head, and a connecting member. The multi-functional inner shaft device has four handle shells arranged in an axially symmetrical ring on its exterior. The four handle shells form a hollow cylinder, and a connecting member is provided at the shaft end of each handle shell. The connecting member is threadedly connected to the handle shell. An internal spring component is provided inside the connecting member to cooperate with the multi-functional inner shaft device. A four-jaw swivel ratchet mechanism is provided on the side of the connecting member away from the handle shell, and a cutting head is provided at the shaft end of the connecting member corresponding to the four-jaw swivel ratchet mechanism. The cutting head is internally connected to the four-jaw swivel ratchet mechanism.

[0008] Preferably, the multifunctional inner shaft device consists of five parts: a shaft, a sliding push block, an external spring, and seven rotating storage cylinders and an intermediate rod arranged in a ring array. The rotating storage cylinders are connected to the intermediate rods, and the side of the intermediate rod opposite to the rotating storage cylinders is connected to the side wall of the sliding push block.

[0009] Preferably, the shaft has a main shaft at the center of its end face, which is fitted with an external spring and the top end of the main shaft is in contact with the surface of the internal spring. The circular sidewall of the main shaft has four guide rails that are symmetrically distributed. The shaft has seven connecting blocks in a ring array at one end of the main shaft and four connecting blocks in a ring array at the outer side of one end of the main shaft.

[0010] Preferably, the bottom end of the rotating storage cylinder is provided with a first connection hole, which is connected to the first connecting block, and the side wall of the rotating storage cylinder is provided with a second connection hole, which is connected to the end of the intermediate rod shaft, and the top end of the rotating storage cylinder is provided with a placement compartment.

[0011] Preferably, the sliding push block has a mating sliding hole inside, which is slidably connected to the main shaft and the guide slide bar. The cylindrical side wall of the sliding push block has seven connecting blocks three arranged in a ring array, which are matingly connected to the end of the intermediate rod shaft.

[0012] Preferably, the handle shell is a quarter-circular arc plate, and the bottom shaft end of the handle shell is provided with a connecting hole three, which is connected to the connecting block two. The outer side of the shaft end of the handle shell away from the connecting hole three is provided with an external thread, and a set of equally spaced anti-slip strips are provided on the outer side of the handle shell, and the anti-slip strips are aligned with the axial direction of the handle shell.

[0013] Preferably, the connector has an internal thread on one side of the handle housing, and the internal thread is connected to the external thread. A mating block is provided in the center of the internal thread, and an internal spring is provided inside the mating block. The internal spring is in contact with the end face of the spindle.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a convenient multi-functional screwdriver with a four-jaw swivel ratchet, which has the following advantages:

[0016] 1. This convenient multi-functional screwdriver with a four-jaw swivel ratchet greatly improves work efficiency. Its unique multi-functional internal shaft device allows for quick deployment of different screwdriver bits by rotating the storage cylinder, eliminating the need to search for the right bit among many tools like with traditional screwdrivers, saving time on tool changes. The four-jaw swivel ratchet mechanism is easy to operate; when tightening or loosening screws, there is no need for repeated insertion and removal, simply by reciprocating the handle housing for continuous operation. Especially when dealing with a large number of screws, it can significantly shorten working time and improve work efficiency.

[0017] 2. This convenient multi-functional screwdriver with a four-jaw swivel ratchet is easy to carry and use. The hollow cylindrical structure of the handle and shell allows the multi-functional inner shaft to be stored inside when not in use. Its compact size makes it easy to carry. The anti-slip strips on the outside of the handle and shell increase the friction for the operator's grip, improving operational stability. It can be easily operated even with sweaty hands. At the same time, its adjustable ratchet direction allows it to operate flexibly in complex environments such as narrow spaces and high-altitude operations, meeting the needs of different scenarios and providing users with a more convenient user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the convenient multi-functional screwdriver with a four-jaw rotating shaft and ratchet of this utility model;

[0019] Figure 2 This is a partial cross-sectional schematic diagram of the convenient multi-functional screwdriver with a four-jaw rotating shaft and ratchet of this utility model.

[0020] Figure 3 This is a schematic diagram of the multifunctional inner shaft device of this utility model;

[0021] Figure 4 This is a schematic diagram of the shaft component of this utility model;

[0022] Figure 5 This is a schematic diagram of the rotating storage cylinder of this utility model;

[0023] Figure 6 This is a schematic diagram of the sliding push block of this utility model;

[0024] Figure 7 This is a schematic diagram of the handle shell of this utility model;

[0025] Figure 8 This is a schematic diagram of the connector of this utility model.

[0026] In the diagram: 1. Multifunctional inner shaft device; 2. Handle housing; 3. Four-jaw swivel ratchet mechanism; 4. Cutting head; 5. Connecting part; 6. Internal spring part; 7. Shaft part; 8. Rotary storage cylinder; 9. Intermediate rod; 10. Sliding push block; 11. External spring part; 12. Main shaft; 13. Guide slide; 14. Connecting block one; 15. Connecting block two; 16. Connecting hole one; 17. Connecting hole two; 18. Storage compartment; 19. Mating slide hole; 20. Connecting block three; 21. Connecting hole three; 22. External thread; 23. Anti-slip strip; 24. Internal thread; 25. Mating block. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-8 A convenient multi-functional screwdriver with a four-jaw ratchet shaft includes a multi-functional inner shaft device 1, a handle housing 2, a four-jaw ratchet mechanism 3, a cutting head 4, and a connector 5. The multi-functional inner shaft device 1 has four handle housings 2 arranged in an axially symmetrical ring on its exterior. The four handle housings 2 form a hollow cylinder, and the shaft end of the handle housing 2 is provided with a connector 5. The connector 5 is connected to the handle housing 2 by a threaded engagement. The connector 5 has an internal spring 6 that is connected to the multi-functional inner shaft device 1. The side of the connector 5 away from the handle housing 2 is provided with the four-jaw ratchet mechanism 3, and the shaft end of the connector 5 corresponding to the four-jaw ratchet mechanism 3 is provided with a cutting head 4. The cutting head 4 is connected to the four-jaw ratchet mechanism 3. When the four handle housings 2 are rotated to form the hollow cylinder, the connector 5 separates from the hollow cylinder, and the multi-functional inner shaft device 1 unfolds under the push of the internal spring 6, which is always in a compressed state.

[0029] Furthermore, the multifunctional inner shaft device 1 consists of five parts: a shaft 7, a sliding push block 10, an external spring 11, and seven rotating storage cylinders 8 arranged in a circular array, along with an intermediate rod 9. The rotating storage cylinders 8 and the intermediate rod 9 are connected in cooperation. The side of the intermediate rod 9 facing away from the rotating storage cylinder 8 is connected to the side wall of the sliding push block 10. Each of the seven rotating storage cylinders 8 of the multifunctional inner shaft device 1 is equipped with a different screwdriver head. The external spring 11, which is always in a compressed state, pushes the sliding push block 10 to move axially, and then the intermediate rod 9 pushes the rotating storage cylinder 8 to rotate, thus unfolding the different screwdriver heads for easy access and replacement by the staff.

[0030] Furthermore, the shaft 7 has a main shaft 12 at the center of its end face. The main shaft 12 is fitted with the external spring 11, and the top end of the main shaft 12 is in contact with the internal spring 6. The circular sidewall of the main shaft 12 has four guide rails 13 arranged symmetrically. The shaft 7 has seven connecting blocks 14 arranged in a ring array at one end of the main shaft 12, and four connecting blocks 25 arranged in a ring array on the outer side of one end of the shaft 7 corresponding to the main shaft 12. The guide rails 13 of the shaft 7 play a guiding role to prevent the sliding push block 10 from deflecting, while the connecting blocks 14 and 25 play a connecting role.

[0031] Furthermore, the bottom end of the rotating storage cylinder 8 is provided with a connection hole 16, which is connected to the connecting block 14. The side wall of the rotating storage cylinder 8 is provided with a connection hole 17, which is connected to the shaft end of the intermediate rod 9. The top end of the rotating storage cylinder 8 is provided with a placement compartment 18. The rotating storage cylinder 8 serves the functions of storage and unfolding.

[0032] Furthermore, the sliding push block 10 has a mating sliding hole 19 inside, which is slidably connected to the main shaft 12 and the guide slide 13. The cylindrical side wall of the sliding push block 10 has seven connecting blocks 20 arranged in a ring array, which are matingly connected to the shaft end of the intermediate rod 9. The sliding push block 10 ensures that the rebound force of the external spring 11 is evenly applied to each set of rotating storage cylinders 8 and intermediate rods 9.

[0033] Furthermore, the handle shell 2 is a quarter-circular arc plate, and the bottom shaft end of the handle shell 2 is provided with a connecting hole 3 21, which is connected to the connecting block 2 15. The outer side of the shaft end of the handle shell 2 away from the connecting hole 3 21 is provided with an external thread 22. The outer side of the handle shell 2 is provided with a set of equidistant anti-slip strips 23, and the anti-slip strips 23 are aligned with the axial direction of the handle shell 2. The connecting hole 3 21 of the handle shell 2 serves as a connection, while the anti-slip strips 23 facilitate the increase of friction for the operator to hold the handle and improve operability.

[0034] Furthermore, the connector 5 has an internal thread 24 on one side of the handle housing 2, and the internal thread 24 is connected to the external thread 22. The center of the internal thread 24 has a mating block 25, and the mating block 25 has an internal spring 6, which is in contact with the end face of the spindle 12. The mating block 25 of the connector 5 plays an effective connecting role.

[0035] Structural Description:

[0036] Multifunctional inner shaft device 1: It consists of shaft 7, sliding push block 10, external spring 11, seven rotating storage cylinders 8 arranged in a ring array and a middle rod 9. It is surrounded by four handle shells 2. Through the action of internal spring 6 and external spring 11, different screwdriver heads can be unfolded for easy picking and replacement.

[0037] Handle shell 2: It is a quarter-circular arc plate, and four parts are put together to form a hollow cylinder. The connecting hole 3 21 at the bottom shaft end cooperates with the connecting block 2 15. There is an external thread 22 on the outside of the shaft opposite to this end. The outer side is provided with equidistant anti-slip strips 23 for gripping and connecting other parts.

[0038] Four-jaw swivel ratchet mechanism 3: Installed on the side of the connector 5 away from the handle housing 2, it cooperates with the cutter head 4. The four jaws firmly clamp the cutter head 4, and the ratchet mechanism realizes unidirectional or bidirectional rotation, driving the cutter head 4 to tighten or loosen the screw.

[0039] Cutting head 4: It is closely integrated with the four-jaw rotating shaft ratchet mechanism 3, and has multiple types to meet different screw operation needs. It can be quickly changed with the help of the multi-functional inner shaft device 1.

[0040] Connector 5: It is threadedly engaged with the handle housing 2, and has a mating block 25 inside. An internal spring 6 is provided inside the mating block 25 to engage with the multi-functional inner shaft device 1.

[0041] Internal spring 6: Always in a compressed state, it is placed inside the connector 5, with one end in contact with the end face of the main shaft 12. When the handle housing 2 rotates, causing the connector 5 to separate from the hollow cylinder, it works with the external spring 11 to push the multi-functional inner shaft device 1 to unfold.

[0042] Shaft 7: A main shaft 12 is provided at the center of the end face, and four axially symmetrical guide rails 13 are distributed on the circular side wall. Corresponding to one end of the main shaft 12, there are seven connecting blocks 14 arranged in a ring and four connecting blocks 2 15 arranged in an axially symmetrical ring, which serve to support, guide and connect.

[0043] Rotating storage cylinder 8: The bottom connecting hole 16 mates with the connecting block 14, the side connecting hole 2 17 mates with the shaft end of the middle rod 9, and the top has a storage compartment 18 for storing and unfolding different screwdriver heads.

[0044] Intermediate rod 9: One end engages with the connecting hole 17 on the side wall of the rotating storage cylinder 8, and the other end engages with the connecting block 20 on the side wall of the sliding push block 10, transmitting the thrust of the sliding push block 10 and driving the rotating storage cylinder 8 to rotate.

[0045] Sliding push block 10: The internal sliding hole 19 slides with the main shaft 12 and guide slide 13. The cylindrical side wall has seven connecting blocks 20 arranged in a ring and fits with the shaft end of the intermediate rod 9 to ensure that the rebound force of the external spring 11 is uniform.

[0046] External spring 11: Always in a compressed state, it is sleeved on the main shaft 12 and pushes the sliding push block 10 to move axially, thereby unfolding the screwdriver head in the rotating storage cylinder 8.

[0047] Main spindle 12: Located at the center of the end face of shaft 7, it is fitted with the external spring 11 and its top is in contact with the internal spring 6, transmitting the force of the internal and external springs.

[0048] Guide slide 13: It is symmetrically distributed on the circular side wall of the main shaft 12 and slides in conjunction with the sliding hole 19 inside the sliding push block 10 to prevent the sliding push block 10 from deflecting.

[0049] Connecting block 14: It is arranged in a ring array at one end of the shaft 7 corresponding to the main shaft 12, and cooperates with the connecting hole 16 at the bottom of the rotating storage cylinder 8 to connect the shaft 7 and the rotating storage cylinder 8.

[0050] Connecting block 2 15: It is distributed in an axisymmetric ring on the outer side of the main shaft 12 corresponding to the shaft 7, and cooperates with the connecting hole 3 21 at the bottom shaft end of the handle housing 2 to connect the shaft 7 and the handle housing 2.

[0051] Connection hole 16: Located at the bottom end of the rotating storage cylinder 8, it is connected to the connecting block 14 to realize the connection between the rotating storage cylinder 8 and the shaft 7.

[0052] Connection hole 2 17: Located on the side wall of the rotating storage cylinder 8, it is connected to the shaft end of the intermediate rod 9 and is used by the intermediate rod 9 to push the rotating storage cylinder 8 to rotate.

[0053] Storage compartment 18: Located at the top of the rotating storage cylinder 8, it is used to store different types of screwdriver bits.

[0054] Matching sliding hole 19: Inside the sliding push block 10, it is slidably connected with the main shaft 12 and the guide slide 13 to ensure the stability of the movement of the sliding push block 10.

[0055] Connecting block 3 20: It is arranged in a ring array on the cylindrical side wall of the sliding push block 10, and is connected to the shaft end of the intermediate rod 9 to transmit the force of the sliding push block 10.

[0056] Connection hole 3 21: At the bottom shaft end of the handle housing 2, it is connected to the connecting block 2 15 to realize the connection between the handle housing 2 and the shaft 7.

[0057] External thread 22: On the outer side of the shaft end of the handle housing 2 away from the connecting hole 21, it is connected to the internal thread 24 inside the connector 5.

[0058] Anti-slip strips 23: A group of strips are evenly distributed on the outside of the handle shell 2 and are aligned with the axis of the handle shell 2 to increase grip friction and improve operational stability.

[0059] Internal thread 24: Inside the connector 5, it mates with the external thread 22 of the handle housing 2 to connect the handle housing 2 and the connector 5.

[0060] Matching block 25: On the center of the side of the connector 5 corresponding to the handle shell 2, there is an internal spring 6, which serves as a connection and buffer.

[0061] Working Principle: Following the diagram, correctly install this convenient multi-functional screwdriver with a four-jaw ratchet. During operation, first, rotate the hollow cylinder composed of four handle housings 2. Since the connecting hole 21 at the bottom of the handle housing 2 engages with the connecting block 15 on the shaft 7, rotating the handle housing 2 will cause the entire multi-functional inner shaft device 1 to rotate relative to the connecting piece 5. As the handle housing 2 rotates, the connecting piece 5 gradually separates from the hollow cylinder. At this time, the internal spring 6, which is always under compression, loses its constraint, pushing the main shaft 12 of the multi-functional inner shaft device 1 outward. The main shaft 12 engages with the external spring 11, and its four axially symmetrically distributed guide rails 13 on its circular sidewall slide with the matching sliding hole 19 inside the sliding push block 10, preventing the sliding push block 10 from deflecting. The rebound force of the external spring 11 causes the sliding push block 10 to move axially. The seven connecting blocks 20 arranged in a ring array on the cylindrical sidewall of the sliding push block 10 engage with the shaft end of the intermediate rod 9. The intermediate rod 9 is connected to the connecting hole 17 on the side wall of the rotating storage cylinder 8. The movement of the intermediate rod 9 drives the rotating storage cylinder 8 to rotate around the connecting block 14. The connecting block 14 is connected to the connecting hole 16 at the bottom of the rotating storage cylinder 8. The rotating storage cylinder 8 is equipped with different screwdriver heads. During rotation, the different screwdriver heads are unfolded for easy access and replacement by the operator. After selecting the appropriate screwdriver head, it is installed on the four-jaw rotating shaft ratchet mechanism 3. The four-jaw rotating shaft is made of high-strength chromium vanadium steel. The four jaws can firmly hold the screwdriver head 4. During operation, the handle housing 2 is rotated, which drives the four-jaw rotating shaft ratchet mechanism 3 to rotate through the connecting piece 5. The ratchet mechanism consists of a ratchet, a pawl, and a spring. The pawl engages with the ratchet teeth under the action of the spring to achieve unidirectional or bidirectional rotational movement, thereby driving the screwdriver head 4 to tighten or loosen the screw. The user can switch the ratchet direction by adjusting the mechanism to adapt to different operating needs.

[0062] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A convenient multi-functional screwdriver with a four-jaw swivel ratchet, comprising a multi-functional inner shaft device (1), a handle housing (2), a four-jaw swivel ratchet mechanism (3), a cutting head (4), and a connecting piece (5), characterized in that: The multifunctional inner shaft device (1) has four handle shells (2) arranged in an axially symmetrical ring on the outside. The four handle shells (2) form a hollow cylinder. The shaft end of the handle shell (2) is provided with a connector (5). The connector (5) is connected to the handle shell (2) by a threaded connection. The connector (5) is provided with an internal spring (6) that is connected to the multifunctional inner shaft device (1). The side of the connector (5) away from the handle shell (2) is provided with a four-jaw rotating shaft ratchet mechanism (3). The shaft end of the connector (5) corresponding to the four-jaw rotating shaft ratchet mechanism (3) is provided with a cutter head (4). The cutter head (4) is connected to the four-jaw rotating shaft ratchet mechanism (3).

2. The convenient multi-functional screwdriver with a four-jaw swivel ratchet as described in claim 1, characterized in that: The multifunctional inner shaft device (1) consists of five parts: a shaft (7), a sliding push block (10), an external spring (11), and seven rotating storage cylinders (8) arranged in a ring array and an intermediate rod (9). The rotating storage cylinders (8) and the intermediate rod (9) are connected in cooperation, and the side of the intermediate rod (9) away from the rotating storage cylinders (8) is connected in cooperation with the side wall of the sliding push block (10).

3. The convenient multi-functional screwdriver with a four-jaw swivel ratchet as described in claim 2, characterized in that: The shaft (7) has a main shaft (12) at the center of its end face. The main shaft (12) is fitted with the external spring (11) and the top end of the main shaft (12) is in contact with the surface of the internal spring (6). The circular sidewall of the main shaft (12) has four guide slides (13) arranged in an axisymmetric manner. The shaft (7) has seven connecting blocks (14) arranged in a ring array at one end of the main shaft (12) and four connecting blocks (25) arranged in an axisymmetric ring array on the outer side of one end of the shaft (7) corresponding to the main shaft (12).

4. The convenient multi-functional screwdriver with a four-jaw swivel ratchet as described in claim 2, characterized in that: The bottom end of the rotating storage cylinder (8) is provided with a connection hole 1 (16), which is connected to the connection block 1 (14). The side wall of the rotating storage cylinder (8) is provided with a connection hole 2 (17), which is connected to the shaft end of the intermediate rod (9). The top end of the rotating storage cylinder (8) is provided with a storage compartment (18).

5. The convenient multi-functional screwdriver with a four-jaw swivel ratchet according to claim 2, characterized in that: The sliding push block (10) has a mating sliding hole (19) inside. The mating sliding hole (19) is slidably connected to the main shaft (12) and the guide slide (13). The cylindrical side wall of the sliding push block (10) has seven connecting blocks (20) arranged in a ring array. The connecting blocks (20) are slidably connected to the shaft end of the intermediate rod (9).

6. The convenient multi-functional screwdriver with a four-jaw swivel ratchet according to claim 1, characterized in that: The handle shell (2) is a quarter-circular arc plate, and the bottom shaft end of the handle shell (2) is provided with a connecting hole three (21), which is connected to the connecting block two (15). The outer side of the shaft end of the handle shell (2) away from the connecting hole three (21) is provided with an external thread (22). The outer side of the handle shell (2) is provided with a set of anti-slip strips (23) evenly distributed, and the anti-slip strips (23) are aligned with the axial direction of the handle shell (2).

7. The convenient multi-functional screwdriver with a four-jaw swivel ratchet as described in claim 1, characterized in that: The connector (5) has an internal thread (24) on one side of the handle housing (2), and the internal thread (24) is connected to the external thread (22). The internal thread (24) has a mating block (25) in the center, and the mating block (25) has an internal spring (6) inside, and the internal spring (6) is in contact with the end face of the spindle (12).

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