Novel round handle ratchet wrench

Abstract

The utility model relates to the technical field of round handle ratchet wrenches, and discloses a novel round handle ratchet wrench which comprises a movable wrench handle, a handle, a tail handle, a lengthening assembly, two threads, a lengthening rod and two arc plates, a ratchet body is rotationally arranged in the head of the handle, a rotary knob is arranged on the periphery of the upper end of the ratchet body in a clamped mode, and the rotary knob is connected with the tail handle in a clamped mode. A rotary knob is fixedly arranged at the upper end of the ratchet wheel body, a circular ring is fixedly arranged at the upper end of the rotary knob, four second sliding blocks are slidably arranged in the circular ring, second springs are connected between the four second sliding blocks and the circular ring, a rotary disc is rotatably arranged at the upper end of the ratchet wheel body, and four second protruding blocks are fixedly arranged on the periphery of the rotary disc. Four second fixing columns are fixedly arranged on the periphery of the upper end of the ratchet wheel body. According to the bolt fixing device, when the bolt is fixed or disassembled in a narrow space, the ratchet wheel can be driven to rotate by rotating the rotary knob, then the bolt is fixed or disassembled, repeated back-and-forth rotation is not needed for fixing, and time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of round - handle ratchet wrenches, in particular to a novel round - handle ratchet wrench. Background Technique

[0002] A ratchet wrench is a manual screw tightening and loosening tool, which includes a snap ring, a ratchet pawl, a spring and a ratchet wheel arranged in cooperation within the head space of the wrench body. The ratchet wheel is composed of a ratchet body and a spacer sleeve. The spacer sleeve is a circular ring with a concave annular groove on its periphery. The spacer sleeve is sleeved on one side of the ratchet body in a matching manner, and the movable wrench handle can conveniently adjust the use angle of the wrench. It has strong applicability, is easy to use and has a low cost.

[0003] In the prior art, although a ratchet wrench can rotate bolts or nuts in relatively narrow or difficult - to - access positions, when in use, it needs to be rotated back and forth many times to fix and disassemble the screw, which is rather troublesome and not conducive to saving time. Therefore, those skilled in the art have provided a novel round - handle ratchet wrench to solve the problems raised in the above - mentioned background technique. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a novel round - handle ratchet wrench is proposed. When in use, when the bolt to be installed or disassembled is located in a corner and it is not easy to turn the handle, the user can hold the handle and drive the ratchet wheel to rotate by rotating the knob, thereby completing the installation or disassembly of the bolt, improving the practicability. In addition, through the extension rod, the length of the handle is increased, which is beneficial to increasing the torque and saving physical strength.

[0005] To achieve the above - mentioned purpose, the utility model provides the following technical solution: A novel round - handle ratchet wrench, including a movable wrench handle, a handle, a tail handle, an extension assembly, two threads, an extension rod and two arc plates. A ratchet body is rotatably arranged inside the head of the handle. A knob is snap - fitted around the upper end of the ratchet body. A circular ring is fixedly arranged at the upper end of the knob. Four second - stage sliders are slidably arranged inside the circular ring. Second - stage springs are connected between each of the four second - stage sliders and the circular ring.

[0006] A turntable is rotatably arranged at the upper end of the ratchet body. Four second - stage convex blocks are fixedly arranged around the turntable. Four second - stage fixed columns are fixedly arranged around the upper end of the ratchet body. A fixed block is fixedly arranged at the upper end of the turntable. Two arc plates are rotatably arranged inside the fixed block through a spring shaft. First - stage convex blocks are fixedly arranged at the upper ends of the two arc plates.

[0007] Furthermore, an extension rod is fixedly arranged at one end of the tail handle close to the handle. A first - stage hexagonal hole is opened at the rear end of the tail handle. Two threads are fixedly arranged at both ends of the extension rod. The extension assembly is arranged inside the extension rod.

[0008] Further, one end of the lengthening component is fixedly provided with a hexagonal column, and a hexagonal hole is formed at the other end of the lengthening component.

[0009] Further, a first fixing column is fixedly provided at the lower end of the ratchet body, and a second hexagonal hole is formed at the lower end of the first fixing column.

[0010] Further, the movable wrench handle is rotatably arranged inside the head of the handle, a first slider is slidably arranged inside the movable wrench handle, and a first spring is connected between the first slider and the movable wrench handle.

[0011] Further, a pawl is movably arranged inside the head of the handle, and the pawl meshes with the ratchet body.

[0012] Further, a first fixing plate and a second fixing plate are fixedly arranged inside the head of the handle, and the first fixing plate and the second fixing plate are respectively arranged on both sides of the pawl.

[0013] The utility model has the following beneficial effects:

[0014] 1. A new type of round handle ratchet wrench proposed by the utility model. When in use, when the bolt to be installed or disassembled is located in a corner and it is not easy to turn the handle, the knob can be rotated to drive the rotary ratchet to rotate, so as to complete the disassembly and installation. In addition, by rotating the two arc plates, aligning the notch of the arc plate with the second slider, the two arc plates are combined together under the drive of the spring shaft, and then the two arc plates are rotated. Through the second fixing column, the arc plates can drive the rotary ratchet to rotate when rotating, increasing its practicability.

[0015] 2. A new type of round handle ratchet wrench proposed by the utility model. When in use, rotate the tail handle to pull out the lengthening rod, and then fix the lengthening rod inside the handle through the thread, which can increase the length of the handle and improve the torque during rotation, making it more labor-saving. In addition, after completely removing the lengthening rod, take out the lengthening component inside the lengthening rod, and the hexagonal column of the lengthening component can be inserted into the second hexagonal hole, which is convenient for disassembling or installing the bolt in the hole, further improving its practicability. Moreover, both the lengthening rod and the lengthening component are stored inside the handle, and there is no need to carry an extra tool bag, which is convenient for carrying. Description of the Drawings

[0016] Figure 1 Isometric schematic diagram of the utility model;

[0017] Figure 2 Explosion schematic diagram of the utility model;

[0018] Figure 3 Cross-sectional schematic diagram of the utility model;

[0019] Figure 4 is an axonometric schematic diagram of the internal structure of the present utility model;

[0020] Figure 5 is an exploded schematic diagram of the present utility model;

[0021] Figure 6 of the present utility model Figure 5 is an enlarged schematic diagram at position A.

[0022] Legend description:

[0023] 1. Knob; 2. Movable wrench handle; 3. Handle; 4. Tail handle; 5. First hexagonal hole; 6. Extension assembly; 7. Thread; 8. Extension rod; 9. First fixing column; 10. Second hexagonal hole; 11. Ratchet body; 12. Pawl; 13. First slider; 14. First spring; 15. First fixing plate; 16. Second fixing plate; 17. First convex block; 18. Turntable; 19. Ring; 20. Second convex block; 21. Arc plate; 22. Fixed block; 23. Second fixing column; 24. Second slider; 25. Second spring. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0025] Referring to Figure 1 、 Figure 4 、 Figure 5 and Figure 6 , an embodiment provided by the present utility model: a new type of round handle ratchet wrench, including a movable wrench handle 2, a handle 3, a tail handle 4, an extension assembly 6, two threads 7, an extension rod 8 and two arc plates 21. A ratchet body 11 is rotatably arranged inside the head of the handle 3. A knob 1 is clamped around the upper end of the ratchet body 11. A ring 19 is fixedly arranged at the upper end of the knob 1. Four second sliders 24 are slidably arranged inside the ring 19. Second springs 25 are connected between the four second sliders 24 and the ring 19. A turntable 18 is rotatably arranged at the upper end of the ratchet body 11. Four second convex blocks 20 are fixedly arranged around the turntable 18. Four second fixing columns 23 are fixedly arranged around the upper end of the ratchet body 11. A fixed block 22 is fixedly arranged at the upper end of the turntable 18. Two arc plates 21 are rotatably arranged inside the fixed block 22 through a spring shaft. First convex blocks 17 are fixedly arranged at the upper ends of the two arc plates 21;

[0026] Specifically, by means of the knob 1, it is beneficial to rotate the ratchet body 11 in a relatively small space where it is inconvenient to rotate the handle 3, completing the installation and disassembly of the bolt, and it is beneficial to act as a screwdriver; rotate the arc plate 21 to align the notches of the two arc plates 21 with the second slider 24, and then the two arc plates 21 are combined driven by the spring shaft, which is beneficial for the user to rotate the arc plate 21 to drive the ratchet body 11; rotate the arc plate 21 to drive the turntable 18 to rotate. When the turntable 18 rotates, it can drive the ratchet body 11 to rotate together through the second convex block 20 and the second fixed column 23. It can rotate a certain angle and will not drive the ratchet body 11 and the knob 1 to rotate, which is convenient for the user to stagger the notch of the arc plate 21 and the second slider 24, and is convenient for re-fixing the two arc plates 21; through the first convex block 17, there is a moving distance between the two arc plates 21, which is convenient for separating the two arc plates 21; after separating the two arc plates 21, press the two arc plates 21 to squeeze the second slider 24 until the second slider 24 pops out again under the push of the second spring 25, thereby fixing the arc plate 21 and keeping the upper end of the ratchet body 11 smooth.

[0027] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in, a first fixed column 9 is fixedly arranged at the lower end of the ratchet. A second hexagonal hole 10 is opened at the lower end of the first fixed column 9. The movable wrench handle 2 is rotatably arranged inside the head of the handle 3. A first slider 13 is slidably arranged inside the movable wrench handle 2. A first spring 14 is connected between the first slider 13 and the movable wrench handle 2. A pawl 12 is movably arranged inside the head of the handle 3. The pawl 12 meshes with the ratchet body 11. A first fixing plate 15 and a second fixing plate 16 are fixedly arranged inside the head of the handle 3. The first fixing plate 15 and the second fixing plate 16 are respectively arranged on both sides of the pawl 12. One end of the tail handle 4 close to the handle 3 is fixedly provided with an extension rod 8. A first hexagonal hole 5 is opened at the rear end of the tail handle 4. Two threads 7 are fixedly arranged at both ends of the extension rod 8. An extension assembly 6 is arranged inside the extension rod 8. One end of the extension assembly 6 is fixedly provided with a hexagonal column, and a hexagonal hole is opened at the other end of the extension assembly 6;

[0028] Specifically, through the first hexagonal hole 5 and the second hexagonal hole 10, it is beneficial for the user to install and disassemble the hexagonal bolt. By rotating the movable wrench handle 2, the pawl 12 is driven to deflect, and the rotation direction of the ratchet body 11 can be adjusted. The pawl 12 can be fixed by the first fixing plate 15 and the second fixing plate 16 to prevent it from falling off. By rotating the tail handle 4, the extension rod 8 is driven to rotate, and then the end of the extension rod 8 away from the tail handle 4 is fixed inside the handle 3, which can increase the length of the handle, increase the torque during rotation, and reduce physical exertion. The extension assembly 6 is taken out from the inside of the extension rod 8, and then the hexagonal column of the extension assembly 6 is inserted into the second hexagonal hole 10, which can increase the length of the first fixing column 9 and facilitate the disassembly and installation of the bolt inside the hole.

[0029] Working principle: During the use of the device, when the thread 7 to be disassembled or installed is located in a corner and it is inconvenient to rotate the handle 3, the handle 3 can be held, and then the knob 1 is rotated to drive the ratchet body 11 to rotate, thereby completing the installation and disassembly of the bolt, and it can function as a screwdriver. In addition, the two arc plates 21 can also be rotated so that the notches of the two arc plates 21 are aligned with the four second sliders 24. Driven by the spring shaft, the two arc plates 21 approach each other and merge together. The user can rotate the arc plates 21 to drive the ratchet body 11 to rotate. When the thread 7 to be disassembled is relatively firm, the tail handle 4 can be rotated, the extension rod 8 is pulled out, and then the end of the extension rod 8 close to the knob 1 is fixed inside the handle 3, which can lengthen the length of the handle 3, increase the torque during rotation, and reduce physical exertion. In addition, when the bolt to be disassembled is located inside the hole, the extension assembly 6 can be taken out from the inside of the extension rod 8, and then the hexagonal column of the extension assembly 6 is inserted into the second through hole, and then the hexagonal hole of the extension assembly 6 is aligned with the bolt to be disassembled for disassembly.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A novel round-handle ratchet wrench, comprising a movable trigger (2), a handle (3), a tail handle (4), an extension component (6), two threads (7), an extension rod (8) and two arc plates (21), characterized in that: A ratchet body (11) is rotatably arranged inside the head of the handle (3), a knob (1) is clamped around the upper end of the ratchet body (11), a circular ring (19) is fixedly arranged on the upper end of the knob (1), four No. 2 sliders (24) are slidably arranged inside the circular ring (19), and No. 2 springs (25) are connected between the four No. 2 sliders (24) and the circular ring (19); A rotating disk (18) is rotatably provided at the upper end of the ratchet body (11), four No. 2 protrusions (20) are fixedly provided around the rotating disk (18), four No. 2 fixing columns (23) are fixedly provided around the upper end of the ratchet body (11), a fixing block (22) is fixedly provided at the upper end of the rotating disk (18), two circular arc plates (21) are rotatably provided inside the fixing block (22) via a spring shaft, and a No. 1 protrusion (17) is fixedly provided at the upper ends of the two circular arc plates (21).

2. A new round handle ratchet wrench according to claim 1, characterized in that: An extension rod (8) is fixedly arranged at one end of the tail handle (4) close to the handle (3), a No. 1 hexagonal hole (5) is provided at the rear end of the tail handle (4), two threads (7) are fixedly arranged at the two ends of the extension rod (8), and the extension component (6) is arranged inside the extension rod (8).

3. A new round handle ratchet wrench according to claim 1, characterized in that: A hexagonal column is fixedly arranged at one end of the extension component (6), and a hexagonal hole is opened at the other end of the extension component (6).

4. A new round handle ratchet wrench according to claim 1, characterized in that: A No. 1 fixing column (9) is fixedly provided at the lower end of the ratchet body (11), and a No. 2 hexagonal hole (10) is opened at the lower end of the No. 1 fixing column (9).

5. A new round handle ratchet wrench according to claim 1, characterized in that: The movable trigger (2) is rotatably arranged inside the head of the handle (3), a first slider (13) is slidably arranged inside the movable trigger (2), and a first spring (14) is connected between the first slider (13) and the movable trigger (2).

6. A new round handle ratchet wrench according to claim 1, characterized in that: A ratchet pawl (12) is movably arranged inside the head of the handle (3), and the ratchet pawl (12) is meshed with the ratchet body (11).

7. A new round handle ratchet wrench according to claim 1, characterized in that: A first fixing plate (15) and a second fixing plate (16) are fixedly arranged inside the head of the handle (3), and the first fixing plate (15) and the second fixing plate (16) are respectively arranged on both sides of the pawl (12).

Images