A pair of pliers screwdriver handle

Abstract

The present invention belongs to the technical field of mechanical tool equipment, and particularly relates to a pliers-type screwdriver handle. It includes two symmetrically arranged pliers handles, a connecting shaft, a compression spring, bevel gears, a rotating shaft, a fixed shaft, and a ratchet control member; the pliers handle is composed of a grip, a connecting part, and a sector plate; the inner side of the sector plate is a tooth surface; the rear end of the fixed shaft is connected to the connecting shaft; the bevel gear is rotatably sleeved on the front end of the fixed shaft, and the bevel gear meshes with the inner tooth surface; an internal ratchet transmission structure is formed, and a screw connection hole is provided at the front end of the rotating shaft. The pliers-type screwdriver handle of the present application has a simple and compact structure. The usage method is similar to that of a traditional hand pliers. The lever structure of the pliers handle is used for labor-saving operation, and the reciprocating motion of the pliers handle is converted into the one-way rotation of the rotating shaft by using the ratchet transmission structure, so as to complete the screw operation. It has the advantages of simple and efficient usage method, time-saving and labor-saving, and small required operation space. The pliers-type screwdriver handle can be adapted to various types of screws and other parts by using a detachable rotating shaft.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical tool equipment, and in particular relates to a pliers-type screwdriver handle. Background Art

[0002] Existing hand-held screwdrivers mainly utilize the lever principle, and rotate the screwdriver spindle by using a handle or a bent rod structure to achieve tightening or disassembly. They mainly include a rod type and an L-shaped (T-shaped) structure. The rod type has a simple structure, is convenient to use and carry, but has a small torque, a slow rotation speed, limited friction between the human hand and the handle, and is prone to cause excessive wear or extrusion to the user's hand skin, resulting in low efficiency. The L-shaped (T-shaped) structure has a larger torque than the rod type structure, but requires a large operating space, and in order to improve the tool strength, it is generally an integral structure and often needs to be used in batches, so it is not convenient. Summary of the Invention

[0003] The purpose of the present invention is to provide a pliers-type screwdriver handle that gives structures such as a lever and a ratchet drive, can achieve continuous and rapid twisting with a simple grasping action, saves time and effort, has a large torque, and can easily achieve that a single tool is applicable to various types of screws by cooperating with replaceable parts.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions.

[0005] A pliers-type screwdriver handle includes two symmetrically arranged pliers handles 1, a connecting shaft 2, a compression spring 3, a bevel gear 4, a rotating shaft 5, a fixed shaft 6, and a ratchet control member 7;

[0006] The pliers handle 1 is composed of a grip 10, a connecting portion 11, and a sector plate 12; a rotating shaft hole is provided on the connecting portion 11, and the connecting shaft 2 is inserted into the rotating shaft hole to connect the two pliers handles; both ends of the compression spring 3 abut against the two grips 10 to make them tend to open; the sector plates 12 on the two pliers handles 1 are arranged opposite to each other, and the inner side of the sector plate 12 is a tooth surface 12a, and the tooth surface 12a is a part of a face gear centered on the connecting shaft 2;

[0007] The rear end of the fixed shaft 6 is connected to the connecting shaft 2, and the front end extends between the two sector plates 12; the bevel gear 4 is rotatably sleeved on the front end of the fixed shaft 6, and the bevel gear 4 meshes with the tooth surface 12a; an installation hole 4a is provided at the front end of the bevel gear 4, and ratchet teeth are provided on the inner wall of the installation hole 4a; the rear end of the rotating shaft 5 is inserted into the installation hole 4a, an installation groove 5a is dug on the outer wall of the rear end of the rotating shaft 5, and the ratchet control member 7 is swingably installed in the installation groove 5a through a short shaft 9. The ratchet control member 7 and the ratchet teeth on the installation hole 4a form an internal ratchet drive structure. To ensure that the ratchet control member 7 can continuously mesh with the ratchet teeth, a torsion spring can be provided between the ratchet control member 7 and the short shaft 9 so that the free end of the ratchet control member 7 can abut against the ratchet teeth.

[0008] A screw connection hole 5b is provided at the front end of the rotating shaft 5.

[0009] For a further optimized or preferred embodiment of the aforementioned pliers-type screwdriver handle, it further includes a positioning shell 8 that can be sleeved outside the two sector plates 12;

[0010] The positioning shell 8 is composed of two sector plates 8a located on the upper and lower sides and an arc plate 8b located at the front ends of the two sector plates 8a;

[0011] The sector plate 8a is provided with a positioning hole 8c that can be sleeved on the connecting shaft 2, and the arc plate 8b is provided with a through hole 8d through which the rotating shaft 5 can be inserted.

[0012] For a further optimized or preferred embodiment of the aforementioned pliers-type screwdriver handle, a rotating shaft connection hole 5c is provided at the rear end of the rotating shaft 5, and the front end of the fixed shaft 6 extends into the rotating shaft connection hole 5c to be rotatably connected to the rotating shaft 5.

[0013] For a further optimized or preferred embodiment of the aforementioned pliers-type screwdriver handle, the rear end of the fixed shaft 6 is connected to the middle of the connecting shaft 2 to form a T-shaped structure;

[0014] The connecting portion 11 is provided with a clearance groove 11a for the fixed shaft to pass through.

[0015] For a further optimized or preferred embodiment of the aforementioned pliers-type screwdriver handle, there are two mounting grooves 5a symmetrically arranged on the outer wall of the rear end of the rotating shaft 5, and there are two ratchet control members 7 respectively installed in the two mounting grooves 5a.

[0016] The beneficial effects are as follows:

[0017] The pliers-type screwdriver handle of the present application has a simple and compact structure. The usage method is similar to that of a traditional pliers. It uses the lever structure of the pliers handle for labor-saving operation, and uses the ratchet drive structure to convert the reciprocating motion of the pliers handle into the one-way rotation of the rotating shaft, thereby completing the screw operation. It has the advantages of simple and efficient usage method, time-saving and labor-saving, and small required operation space. This pliers-type screwdriver handle can use a detachable rotating shaft to adapt to various types of screws and other parts, and has a wide application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the pliers-type screwdriver handle (the housing has been disassembled)

[0019] Figure 2 is an internal schematic diagram of the pliers-type screwdriver handle;

[0020] Figure 3 is a schematic structural diagram of the rotating shaft;

[0021] Figure 4 is a schematic diagram of the shaft connection structure Figure 1 ;

[0022] Figure 5 Schematic diagram of the shaft connection structure Figure 2 。 Detailed implementation manners

[0023] The present invention will be described in detail below in conjunction with specific embodiments.

[0024] A pair of pliers type screwdriver handle of the present application is mainly used to achieve time-saving and labor-saving rapid assembly operations of parts such as screws, and is applied in various fields such as machining, equipment production, construction, and operation maintenance.

[0025] As Figures 1 to 5 shown, the basic structure of the pair of pliers type screwdriver handle of the present application includes two symmetrically arranged plier handles 1, a connecting shaft 2, a compression spring 3, bevel gears 4, a rotating shaft 5, a fixed shaft 6, and a ratchet control member 7;

[0026] The plier handle 1 is composed of a grip 10, a connecting portion 11, and a sector plate 12; a rotating shaft hole is provided on the connecting portion 11, and the connecting shaft 2 is inserted into the rotating shaft hole to connect the two plier handles; both ends of the compression spring 3 abut against the two grips 10 to make them tend to open; the sector plates 12 on the two plier handles 1 are arranged opposite to each other, and the inner side of the sector plate 12 is a tooth surface 12a, and the tooth surface 12a is part of a face gear centered on the connecting shaft 2;

[0027] The rear end of the fixed shaft 6 is connected to the connecting shaft 2, and the front end extends between the two sector plates 12; the bevel gear 4 is rotatably sleeved on the front end of the fixed shaft 6, and the bevel gear 4 meshes with the tooth surface 12a; an installation hole 4a is provided at the front end of the bevel gear 4, and ratchet teeth are provided on the inner wall of the installation hole 4a; the rear end of the rotating shaft 5 is inserted into the installation hole 4a, an installation groove 5a is dug on the outer wall of the rear end of the rotating shaft 5, and the ratchet control member 7 is swingably installed in the installation groove 5a through a short shaft 9, and the ratchet control member 7 and the ratchet teeth on the installation hole 4a form an internal ratchet transmission structure, and a screw connection hole 5b is provided at the front end of the rotating shaft 5.

[0028] For convenient operation and use, it further includes a positioning shell 8 that can be sleeved outside the two sector plates 12;

[0029] The positioning shell 8 is composed of two sector plates 8a located on the upper and lower sides and an arc plate 8b located at the front ends of the two sector plates 8a;

[0030] The sector plate 8a is provided with a positioning hole 8c that can be sleeved on the connecting shaft 2, and the arc plate 8b is provided with a through hole 8d for the rotating shaft 5 to insert.

[0031] The positioning shell 8 is used for protection on one hand, preventing impurities from entering the internal ratchet wheel and shaft transmission structure to ensure smooth and stable internal transmission. On the other hand, it is used to form the front-end rotating shaft positioning structure, preventing the rotating shaft from swinging randomly, facilitating the docking of the rotating shaft with the screw, and at the same time ensuring that the operating chamber and the acting force direction are in a straight line, simplifying the operation method.

[0032] During actual implementation, for easy assembly and use and to ensure the coaxiality of the fixed shaft and the rotating shaft, a rotating shaft connection hole 5c is provided at the rear end of the rotating shaft 5, and the front end of the fixed shaft 6 extends into the rotating shaft connection hole 5c to be rotatably connected to the rotating shaft 5.

[0033] As a preferred structural solution, the rear end of the fixed shaft 6 can be connected to the middle of the connecting shaft 2 to form a T-shaped structure; or the two structures can be made into an integral form to form the connecting skeleton of the overall structure, the sharp mountain connection structure, improving the stability of the overall structure, simplifying the assembly process at the same time, and a clearance groove 11a for the fixed shaft to pass through is provided on the connecting part 11. To avoid jamming between the fixed shaft and the connecting part when the two sector plates swing.

[0034] As a preferred structure, in this example, there are two installation grooves 5a symmetrically arranged on the outer wall of the rear end of the rotating shaft 5, and there are two ratchet control parts 7 respectively installed in the two installation grooves 5a. Thus, the symmetry and stability of the overall structure are ensured, and the stable transmission of the ratchet structure is ensured.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A pliers-type screwdriver handle, characterized in that, It includes two symmetrically arranged plier handles (1), a connecting shaft (2), a compression spring (3), bevel gears (4), a rotating shaft (5), a fixed shaft (6), and a ratchet control member (7); The plier handle (1) is composed of a grip (10), a connecting portion (11), and a sector plate (12); a rotating shaft hole is provided on the connecting portion (11), and the connecting shaft (2) is inserted into the rotating shaft hole to connect the two plier handles; both ends of the compression spring (3) abut against the two grips (10) to give it a tendency to open; the sector plates (12) on the two plier handles (1) are arranged opposite to each other, the inner side of the sector plate (12) is a tooth surface (12a), and the tooth surface (12a) is part of a face gear centered on the connecting shaft (2); The rear end of the fixed shaft (6) is connected to the connecting shaft (2), and the front end extends between the two sector plates (12); the bevel gear (4) is rotatably sleeved on the front end of the fixed shaft (6), and the bevel gear (4) meshes with the tooth surface (12a); an installation hole (4a) is provided at the front end of the bevel gear (4), and ratchet teeth are provided on the inner wall of the installation hole (4a); the rear end of the rotating shaft (5) is inserted into the installation hole (4a), an installation groove (5a) is dug on the outer wall of the rear end of the rotating shaft (5), and the ratchet control member (7) is swingably installed in the installation groove (5a) through a short shaft (9), and the ratchet control member (7) and the ratchet teeth on the installation hole (4a) form an internal ratchet transmission structure. A screw connection hole (5b) is provided at the front end of the rotating shaft (5), and a torsion spring is provided between the ratchet control member and the short shaft so that the free end of the ratchet control member can abut against the ratchet teeth.

2. The pliers-type screwdriver handle according to claim 1, characterized in that, It also includes a positioning shell (8) that can be sleeved outside the two sector plates (12); The positioning shell (8) is composed of two sector plates (8a) located on the upper and lower sides and an arc plate (8b) located at the front ends of the two sector plates (8a); The sector plate (8a) is provided with a positioning hole (8c) that can be sleeved on the connecting shaft (2), and the arc plate (8b) is provided with a through hole (8d) through which the rotating shaft (5) can be inserted.

3. The pliers-type screwdriver handle according to claim 1, characterized in that, A rotating shaft connection hole (5c) is provided at the rear end of the rotating shaft (5), and the front end of the fixed shaft (6) extends into the rotating shaft connection hole (5c) to be rotatably connected to the rotating shaft (5).

4. The pliers-type screwdriver handle according to claim 1, wherein, The rear end of the fixed shaft (6) is connected to the middle of the connecting shaft (2) to form a T-shaped structure; A clearance groove (11a) for the fixed shaft to pass through is provided on the connecting portion (11).

5. The pliers-type screwdriver handle according to claim 1, wherein There are two symmetrically arranged installation grooves (5a) on the outer wall of the rear end of the rotating shaft (5), and two ratchet control members (7) are respectively installed in the two installation grooves (5a).

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