A multifunctional and efficient adjustable wrench

Abstract

The present invention proposes a multifunctional and efficient movable wrench. The working end of the wrench includes a wrench body, a movable jaw, a movable block, an adjusting screw, a first cylindrical pin, a second cylindrical pin and a spring. A fixed bevel block is provided above the wrench body, a movable jaw is installed on one side of the fixed bevel block, a hook-shaped clamp block is provided above the movable jaw, and the end of the hook-shaped clamp block has an arc surface. The adjusting screw meshes with the bottom of the movable jaw. A holder is provided on the other side of the fixed bevel block, a movable block is installed in the holder, a spring is provided at the bottom of the movable block, the movable block is movably connected to the holder in combination with the first cylindrical pin, and an R-shaped protrusion is provided on the side of the movable block facing the movable jaw. The wrench can be used for the rotation of various nuts or various columnar parts, and can be reciprocatingly tightened and loosened for hexagonal nuts, etc. It has high working efficiency, a wider range of adaptability, and can effectively protect the nuts from damage.

Description

[Technical field]

[0001] The invention relates to the technical field of wrenches, in particular to a multifunctional and high-efficiency movable wrench. [Background technology]

[0002] The adjustable wrench is abbreviated as a spanner. Its opening width can be adjusted within a certain range. It is a tool used to tighten and loosen nuts and bolts of different specifications. At present, the adjustable wrench uses the fixed jaw plane and the movable jaw plane to work on the nut angle line to directly twist the nut. When working, the traditional adjustable wrench will cause the angle line of the nut to be stressed, which will inevitably cause damage to the nut. In addition, it has poor versatility and low working efficiency. A multifunctional and high-efficiency adjustable wrench is now proposed. [Summary of the invention]

[0003] The purpose of the present invention is to solve the problems in the prior art and to propose a multifunctional and high-efficiency adjustable wrench, which is used for rotating a variety of nuts or various cylindrical parts. It can perform reciprocating tightening and loosening on hexagonal nuts, etc., has high working efficiency, and is also suitable for hook-shaped round nuts and circular or polygonal columns within a certain specification range. It has a wider range of adaptability than traditional adjustable wrenches, and uses the surface contact force of hexagonal nuts to effectively protect the nuts from damage.

[0004] To achieve the above-mentioned purpose, the present invention provides a multifunctional and high-efficiency movable wrench, one end of which is provided with a flat working end and the other end of which is provided with a handle. The working end comprises a wrench body, a movable jaw, a movable block, an adjusting screw, a first cylindrical pin, a second cylindrical pin and a spring. A fixed oblique block is provided above the wrench body, a third mounting groove is provided on one side of the fixed oblique block, the movable jaw is installed in the third mounting groove, a hook-shaped clamp block is provided above the movable jaw, the end of the hook-shaped clamp block has an arc surface, the adjusting screw is installed below the movable jaw through the second cylindrical pin, the adjusting screw is meshed with the rack below the movable jaw for adjusting the position of the movable jaw and the size of the jaw, a clamping seat is provided on the other side of the fixed oblique block, a movable block is installed in the clamping seat, a spring is provided at the bottom of the movable block, the movable block is slidably matched with the clamping seat in combination with the first cylindrical pin, and an R-shaped protrusion is provided on the side of the movable block facing the movable jaw.

[0005] Preferably, the wrench body also includes a first mounting groove and a second mounting groove, the adjusting screw is installed in the first mounting groove through a second cylindrical pin, the first mounting groove is communicated with the third mounting groove, and second pin holes compatible with the second cylindrical pin are opened on both sides of the first mounting groove, the holder has a second mounting groove, the movable block and the spring are arranged in the second mounting groove, and first pin holes compatible with the first cylindrical pin are opened on both sides of the second mounting groove, and both ends of the spring are respectively abutted against the blind hole end face at the bottom of the movable block and the bottom of the second mounting groove.

[0006] Preferably, the movable jaw also includes a slider and a rack, a hook-shaped clamp block bent toward the third mounting groove extends above one end of the slider, a rack meshing with the adjusting screw is provided below the slider, and the inner side of the hook-shaped clamp block has a locking tooth on the end face facing the third mounting groove.

[0007] Preferably, a slider positioning groove for installing the slider is provided below the third mounting groove, the bottom of the slider positioning groove is communicated with the first mounting groove, and the upper portion of the adjusting screw extends into the slider positioning groove and meshes with the rack.

[0008] Preferably, the angle between the center line of the slider positioning groove and the upper end surface of the wrench body is 30 degrees, and the upper end surface of the wrench body is parallel to the axis of the first cylindrical pin.

[0009] Preferably, the fixed bevel block has an inclined surface on one side facing the movable jaw, and the angle between the inclined surface and the upper end surface of the wrench body is 150 degrees.

[0010] Preferably, the R-shaped protrusion includes a first protrusion and a second protrusion arranged in sequence from top to bottom, and the sides of the first protrusion and the second protrusion facing the movable jaw both have arc-shaped surfaces.

[0011] Preferably, the movable block also includes a support column, a slide groove is provided in the support column, the first cylindrical pin passes through the slide groove, the slide groove is arranged along the axial direction of the support column, the axis of the support column is perpendicular to the axis of the first cylindrical pin, and the bottom of the support column has a blind hole.

[0012] Beneficial effects of the present invention:

[0013] 1. It has the function of rotation (similar to a ratchet wrench) to improve work efficiency;

[0014] 2. The R-shaped protrusion of the movable jaw and the arc-shaped protrusion of the movable block (R surface in the figure) are used to clamp the workpiece plane, which changes the traditional adjustable wrench from applying force on the corner line of the workpiece to applying force on the plane, effectively protecting the nut from damage;

[0015] 3. The upper opening of the wrench body has two surfaces at an angle of 150°, which can adapt to the same relative force points of nuts of different specifications;

[0016] 4. The slider positioning groove in the wrench body forms an angle of 30° with the upper surface of the wrench body, so that the relative force points of nuts of different specifications are the same when adjusting the size of the jaws;

[0017] 5. Multifunctional, widely used and highly adaptable.

[0018] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0019] Figure 1 It is an exploded schematic diagram of a multifunctional and high-efficiency movable wrench of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of a multifunctional and high-efficiency movable wrench of the present invention;

[0021] Figure 3 It is a structural schematic diagram of a wrench body of a multifunctional and high-efficiency adjustable wrench of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the movable jaws of a multifunctional and high-efficiency movable wrench of the present invention;

[0023] Figure 5 It is a structural schematic diagram of a movable block of a multifunctional and high-efficiency movable wrench of the present invention;

[0024] Figure 6 It is a schematic diagram of a multifunctional high-efficiency adjustable wrench of the present invention in a state of tightening a hexagonal bolt (female);

[0025] Figure 7 It is a schematic diagram of the rotation state of a multifunctional high-efficiency adjustable wrench of the present invention for tightening a hexagonal bolt (female);

[0026] Figure 8 It is a schematic diagram of the structural state of a multifunctional high-efficiency adjustable wrench of the present invention for tightening a hook-shaped round nut;

[0027] Fig. 9 It is a schematic diagram of a multifunctional high-efficiency adjustable wrench of the present invention in a state of tightening a cylindrical part;

[0028] Fig.10 It is a schematic diagram of a state in which a multifunctional high-efficiency adjustable wrench of the present invention is used to tighten a triangular prism-shaped part;

[0029] Fig.11 The present invention is a schematic diagram of a multifunctional high-efficiency adjustable wrench in a state of tightening a pentagonal columnar part. [Specific implementation method]

[0030] See also Figures 1 to 5A multifunctional and efficient movable wrench is disclosed, wherein one end of the movable wrench has a flat working end and the other end has a handle 10, wherein the working end comprises a wrench body 1, an movable jaw 2, an movable block 3, an adjusting screw 4, a first cylindrical pin 5, a second cylindrical pin 6 and a spring 7, wherein the wrench body 1 has a fixed oblique block 13 above, a third mounting groove 14 is provided on one side of the fixed oblique block 13, and the movable jaw 2 is installed in the third mounting groove 14, and a hook-shaped clamp block 23 is provided above the movable jaw 2, and the end of the hook-shaped clamp block 23 has a There is an arc surface 232, and the adjusting screw 4 is installed under the movable jaw 2 through the second cylindrical pin 6. The adjusting screw 4 is meshed with the rack 22 under the movable jaw 2 to adjust the position of the movable jaw 2 and the size of the jaw. The other side of the fixed bevel block 13 has a seat 15, and the movable block 3 is installed in the seat 15. The bottom of the movable block 3 is equipped with a spring 7. The movable block 3 is combined with the first cylindrical pin 5 to slide with the seat 15, and the movable block 3 is provided with an R-shaped protrusion on the side facing the movable jaw 2.

[0031] Further, see Figure 3 The wrench body 1 also includes a first mounting groove 11 and a second mounting groove 12. The adjusting screw 4 is installed in the first mounting groove 11 through a second cylindrical pin 6. The first mounting groove 11 is communicated with the third mounting groove 14. Second pin holes 111 adapted to the second cylindrical pin 6 are opened on both sides of the first mounting groove 11. The second mounting groove 12 is provided in the holder 15. The movable block 3 and the spring 7 are arranged in the second mounting groove 12. First pin holes 121 adapted to the first cylindrical pin 5 are opened on both sides of the second mounting groove 12. The two ends of the spring 7 are respectively abutted against the end surface of the blind hole 312 at the bottom of the movable block 3 and the bottom of the second mounting groove 12.

[0032] Further, see Figure 4 The movable jaw 2 also includes a slider 21 and a rack 22. A hook-shaped clamp block 23 bent toward the third mounting groove 14 extends above one end of the slider 21. A rack 22 meshing with the adjusting screw 4 is provided below the slider 21. The inner side of the hook-shaped clamp block 23 facing the end surface of the third mounting groove 14 has a latching tooth 231. By adjusting the screw 4 and the rack 22, the movable jaw 2 is controlled to move to adjust the size of the jaw to adapt to different working conditions. By providing the latching tooth 231 on the hook-shaped clamp block 23, it can be used for the installation and disassembly of cylindrical parts, triangular prism parts, pentagonal prism parts, etc.

[0033] Further, see Figure 2A slider positioning groove 141 for mounting the slider 21 is provided below the third mounting groove 14. The bottom of the slider positioning groove 141 is connected to the first mounting groove 11. The upper portion of the adjusting screw 4 extends into the slider positioning groove 141 and meshes with the rack 22. Specifically, the angle between the center line of the slider positioning groove 141 and the upper end surface of the wrench body 1 is 30 degrees, and the upper end surface of the wrench body 1 is parallel to the axis of the first cylindrical pin 5. The fixed bevel block 13 has an inclined surface on the side facing the movable jaw 2, and the angle between the inclined surface and the upper end surface of the wrench body 1 is 150 degrees, so that the force points of nuts of different specifications remain unchanged.

[0034] Further, see Figure 5 The R-shaped protrusion includes a first protrusion 32 and a second protrusion 33 arranged in sequence from top to bottom, and the first protrusion 32 and the second protrusion 33 have arc-shaped surfaces on the sides facing the movable jaw 2. Specifically, the movable block 3 also includes a support column 31, and a slide groove 311 is provided in the support column 31. The first cylindrical pin 5 passes through the slide groove 311. The slide groove 311 is arranged along the axial direction of the support column 31. The axis of the support column 31 is perpendicular to the axis of the first cylindrical pin 5. The bottom of the support column 31 has a blind hole 312.

[0035] Working process of the present invention:

[0036] See also Figure 6 and Figure 7 , Use 1: Reciprocating tightening of hexagonal bolts (female). Among them, Figure 6 The middle wrench is turned clockwise, and the force point on the R surface effectively protects the nut; Figure 7 The middle wrench rotates counterclockwise and has a reciprocating function, similar to a ratchet wrench. At this time, the movable block automatically moves down under the pressure of the workpiece, and resets under the action of the spring after it is in place.

[0037] See also Figure 8 , 9 , 10, 11, can be used to screw hook-shaped round nuts, screw cylindrical parts, screw triangular prism parts, screw pentagonal prism parts, etc., among which, refer to Figure 8 When the hook-shaped round nut is screwed, the movable block automatically moves down due to the pressure of the workpiece. The wrench has multiple functions, wide applications and strong adaptability.

[0038] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A multifunctional and efficient adjustable wrench, having a flat working end at one end and a handle (10) at the other end, characterized in that: The working end comprises a wrench body (1), a movable jaw (2), a movable block (3), an adjusting screw (4), a first cylindrical pin (5), a second cylindrical pin (6) and a spring (7); a fixed bevel block (13) is provided above the wrench body (1); a third mounting groove (14) is provided on one side of the fixed bevel block (13); the movable jaw (2) is mounted in the third mounting groove (14); a hook-shaped clamp block (23) is provided above the movable jaw (2); the end of the hook-shaped clamp block (23) has an arc surface (232); the adjusting screw (4) is mounted below the movable jaw (2) through the second cylindrical pin (6); the adjusting screw (4) is meshed with a rack (22) below the movable jaw (2); the other side of the fixed bevel block (13) has a holder (15); the movable block (3) is mounted in the holder (15) The bottom of the movable block (3) is provided with a spring (7). The movable block (3) is slidably matched with the clamping seat (15) in combination with the first cylindrical pin (5). The movable block (3) is provided with an R-shaped protrusion on the side facing the movable jaw (2). The movable jaw (2) further comprises a slider (21) and a rack (22). A hook-shaped clamp block (23) is extended above one end of the slider (21) and is bent toward the third mounting groove (14). A rack (22) meshing with the adjusting screw (4) is provided below the slider (21). The end surface of the inner side of the hook-shaped clamp block (23) facing the third mounting groove (14) has a clamping tooth (231). The R-shaped protrusion comprises a first protrusion (32) and a second protrusion (33) arranged in sequence from top to bottom. The first protrusion (32) and the second protrusion (33) have arc-shaped surfaces on the side faces facing the movable jaw (2).

2. A multifunctional and high-efficiency adjustable wrench as claimed in claim 1, characterized in that: The wrench body (1) further comprises a first mounting groove (11) and a second mounting groove (12); the adjusting screw (4) is mounted in the first mounting groove (11) via a second cylindrical pin (6); the first mounting groove (11) is communicated with a third mounting groove (14); second pin holes (111) adapted to the second cylindrical pin (6) are provided on both sides of the first mounting groove (11); the second mounting groove (12) is provided in the holder (15); the movable block (3) and the spring (7) are arranged in the second mounting groove (12); first pin holes (121) adapted to the first cylindrical pin (5) are provided on both sides of the second mounting groove (12); and two ends of the spring (7) are respectively abutted against end surfaces of a blind hole (312) at the bottom of the movable block (3) and the bottom of the second mounting groove (12).

3. A multifunctional and efficient adjustable wrench as claimed in claim 1, characterized in that: A slider positioning groove (141) for mounting the slider (21) is provided below the third mounting groove (14); the bottom of the slider positioning groove (141) is connected to the first mounting groove (11); the upper portion of the adjusting screw (4) extends into the slider positioning groove (141) and meshes with the rack (22).

4. A multifunctional and efficient adjustable wrench as claimed in claim 3, characterized in that: The included angle between the center line of the slider positioning groove (141) and the upper end surface of the wrench body (1) is 30 degrees, and the upper end surface of the wrench body (1) is parallel to the axis of the first cylindrical pin (5).

5. A multifunctional and high-efficiency adjustable wrench as claimed in claim 4, characterized in that: The fixed bevel block (13) has an inclined surface on one side facing the movable jaw (2), and the angle between the inclined surface and the upper end surface of the wrench body (1) is 150 degrees.

6. A multifunctional and efficient adjustable wrench as claimed in claim 1, characterized in that: The movable block (3) further comprises a support column (31), a slide groove (311) being provided in the support column (31), the first cylindrical pin (5) passing through the slide groove (311), the slide groove (311) being arranged along the axial direction of the support column (31), the axis of the support column (31) being perpendicular to the axis of the first cylindrical pin (5), and a blind hole (312) being provided at the bottom of the support column (31).

Images