Reversible ratchet handle and multifunctional tool

Abstract

The utility model provides a reversible ratchet handle and a multifunctional tool, the reversible ratchet handle is used for screwing a nut, the reversible ratchet handle comprises a plier handle shell, a reset assembly, a reversing pawl and a fixing assembly, one end of the plier handle shell forms a mounting cavity, the reset assembly is embedded and mounted in the mounting cavity, and one end of the plier handle shell, which is provided with the mounting cavity, extends to form two mounting seats; the two installation seats are symmetrically arranged on the two sides of the end of the clamp handle shell, the fixing assembly is rotatably arranged between the two installation seats, and the reversing pawl is rotatably arranged between the reset assembly and the fixing assembly. The fixing assembly comprises a sleeve arranged on the installation base in a penetrating mode and an insection ratchet wheel connected to the outer portion of the sleeve in a sleeving mode, and the sleeve is in key connection with the insection ratchet wheel. According to the reversible ratchet handle and the multifunctional tool provided by the utility model, the working state of the ratchet handle is switched through the reversing pawl and the clamp handle shell, so that the ratchet handle can respectively realize a one-way ratchet function in two different working states.

Description

Technical Field

[0001] This utility model relates to the field of hardware tool technology, specifically to a reversible ratchet handle and a multi-functional tool. Background Technology

[0002] In the traditional field of hand tools, ratchet wrenches are a common tool widely used in mechanical repair, equipment installation, and tightening and loosening various bolts and nuts. However, most existing ratchet wrenches can only perform a one-way ratchet function, meaning they can only lock and drive in one direction, while sliding freely in the other. This one-way ratchet design has limitations in certain applications. For example, in operations requiring frequent switching of rotation direction, users need to frequently adjust the tool settings, thus reducing work efficiency. Utility Model Content

[0003] This utility model provides a reversible ratchet handle and a multi-functional tool to solve the problem that in the prior art, ratchet handles can only be locked and driven in one direction.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a reversible ratchet handle for turning nuts, comprising a plier handle housing, a reset assembly, a reversing pawl, and a fixing assembly. One end of the plier handle housing has a mounting cavity, the reset assembly is embedded in the mounting cavity, and the end of the plier handle housing with the mounting cavity extends to form two mounting seats, which are symmetrically arranged on both sides of the end of the plier handle housing. The fixing assembly is rotatably disposed between the two mounting seats, and the reversing pawl is rotatably disposed between the reset assembly and the fixing assembly.

[0005] The fixing component includes a sleeve that passes through the mounting base and a toothed ratchet that is sleeved on the outside of the sleeve. The sleeve is keyed to the toothed ratchet, and one end of the sleeve has a first groove that conforms to the outer contour of the nut.

[0006] The reversing pawl has a first working ramp and a second working ramp on the side near the reset assembly. A blocking protrusion is formed between the first working ramp and the second working ramp. The reversing pawl has a first engagement part and a second engagement part for engaging with the toothed ratchet on the side near the toothed ratchet. A lever is also formed on the reversing pawl. The lever passes through a limiting groove opened on the plier handle housing and extends out of the outer surface of the plier handle housing.

[0007] The reset assembly includes a mounting member adapted to the shape of the mounting cavity and a limiting block elastically connected to the mounting member, the limiting block being connected to the side of the mounting member near the reversing pawl;

[0008] When the lever abuts against the end of the limiting groove away from the fixed component, the limiting block abuts against the second working ramp, and the first engaging part engages with the toothed ratchet. When the lever abuts against the end of the limiting groove near the fixed component, the limiting block abuts against the first working ramp, and the second engaging part engages with the toothed ratchet.

[0009] Furthermore, a placement groove is formed at the end of the mounting component away from the clamp handle housing, a spring is installed in the placement groove, and a limit block is installed at the end of the spring away from the placement groove.

[0010] Furthermore, a retaining ring is provided inside the sleeve to fix the relative position of the sleeve and the nut.

[0011] Furthermore, the sleeve has an installation groove, and a retaining ring is fitted on the sleeve to fix the relative position of the sleeve and the nut. The two sides of the retaining ring are embedded in the installation groove and extend into the inside of the sleeve.

[0012] Furthermore, a groove is formed on one side of the reversing pawl, which is located between the first engagement part and the second engagement part.

[0013] Furthermore, an extension is rotatably provided at the end of the pliers handle housing away from the mounting base.

[0014] A multi-tool includes the aforementioned reversible ratchet handle, with at least one extension rotatably disposed at the end of the pliers housing away from the mounting base, the extension including a cutting blade and a needle-nose pliers clamp.

[0015] The beneficial effects of this utility model are as follows:

[0016] The present invention provides a reversible ratchet handle and a multi-functional tool, which switches the working state of the ratchet handle by switching the reversible pawl and the pliers housing, so that the ratchet handle can realize the unidirectional ratchet function in two different working states, that is, it can realize locking and driving in two directions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first working state of the reversible ratchet handle;

[0018] Figure 2 This is a schematic diagram of the second working state of the reversible ratchet handle;

[0019] Figure 3 A 3D view of a reversible ratchet handle;

[0020] Figure 4 This is a schematic diagram of the reversing ratchet pawl.

[0021] Figure 5 An exploded view of a reversible ratchet handle;

[0022] Figure 6This is a 3D diagram of a multi-functional tool.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Pliers handle housing; 101. Mounting cavity; 102. Limiting groove; 2. Mounting component; 201. Placement groove; 3. Spring; 4. Limiting block; 5. Mounting base; 6. Sleeve; 7. First slot; 8. Snap ring; 9. Toothed ratchet; 10. Reversing pawl; 1001. First engagement part; 1002. First working ramp; 1003. Second engagement part; 1004. Lever; 1005. Second working ramp; 1006. Slide groove; 1007. Barrier protrusion. Detailed Implementation

[0025] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0026] like Figure 1-5 As shown, this utility model embodiment provides a reversible ratchet handle for turning nuts, including a plier handle housing 1, a reset assembly, a reversing pawl 10, and a fixing assembly. One end of the plier handle housing 1 forms a mounting cavity 101, and the reset assembly is embedded in the mounting cavity 101. The end of the plier handle housing 1 with the mounting cavity 101 extends to form two mounting seats 5, and the two mounting seats 5 are symmetrically arranged on both sides of the end of the plier handle housing 1. The fixing assembly is rotatably disposed between the two mounting seats 5, and the reversing pawl 10 is rotatably disposed between the reset assembly and the fixing assembly.

[0027] The fixing component includes a sleeve 6 that passes through the mounting base 5 and a toothed ratchet 9 that is sleeved on the outside of the sleeve 6. The sleeve 6 and the toothed ratchet 9 are keyed together (in a specific embodiment, the sleeve 6 is provided with a flower-shaped key, and the toothed ratchet 9 is provided with a second groove that matches the shape of the key). One end of the sleeve 6 forms a first groove 7 that adapts to the outer contour of the nut.

[0028] The reversing pawl 10 has a first working ramp 1002 and a second working ramp 1005 formed on the side near the reset assembly. A blocking protrusion 1007 is formed between the first working ramp 1002 and the second working ramp 1005. The reversing pawl 10 has a first engagement portion 1001 and a second engagement portion 1003 for engaging with the toothed ratchet 9 at intervals on the side near the toothed ratchet 9. A lever 1004 is also formed on the reversing pawl 10. The lever 1004 passes through the limiting groove 102 opened on the plier handle housing 1 and extends out of the outer surface of the plier handle housing 1.

[0029] The reset assembly includes a mounting member 2 adapted to the shape of the mounting cavity 101 and a limiting block 4 elastically connected to the mounting member 2 (in a specific embodiment, a placement groove 201 is formed at the end of the mounting member 2 away from the cleaver housing 1, a spring 3 is provided in the placement groove 201, and a limiting block 4 is provided at the end of the spring 3 away from the placement groove 201), and the limiting block 4 is connected to the side of the mounting member 2 near the reversing pawl 10;

[0030] When the lever 1004 abuts against the end of the limiting groove 102 away from the fixing component, the limiting block 4 abuts against the second working ramp 1005, and the first engaging part 1001 engages with the toothed ratchet 9. When the lever 1004 abuts against the end of the limiting groove 102 near the fixing component, the limiting block 4 abuts against the first working ramp 1002, and the second engaging part 1003 engages with the toothed ratchet 9.

[0031] In use, in one working state of the present invention, when the lever 1004 is moved to the end of the limiting groove 102 away from the fixing component, as... Figure 1 As shown, the limiting block 4 abuts against the second working ramp 1005, the first meshing part 1001 meshes with the toothed ratchet 9, and the lever 1004 is restricted to move to the right by the limiting groove 102. The reversing pawl 10 cannot rotate counterclockwise, so the toothed ratchet 9 cannot rotate clockwise. At this time, the nut is inserted into the sleeve 6, and the relative position of the nut and the sleeve 6 is fixed by the snap ring 8. The wrench can be operated to rotate clockwise around the nut to tighten the nut. When the wrench is operated to rotate the nut counterclockwise, since the limiting block 4 is located on the first working ramp 1002, and since the lever 1004 is not restricted to move to the left, the toothed ratchet 9 will rotate counterclockwise, causing the reversing pawl 10 to rotate clockwise. Through the elasticity of the spring 3, the lever 1004 will reset and stop, causing the reversing pawl 10 to rotate clockwise, so that the lever 1004 returns to the starting position. Figure 1 Position; In another operating state of the present invention, when the lever 1004 is moved to the end of the limiting groove 102 near the fixing component, as Figure 2 As shown, the limiting block 4 abuts against the first working ramp 1002, and the second meshing part 1003 engages with the toothed ratchet 9. The lever 1004 is restricted from moving to the left by the limiting groove 102, and the reversing pawl 10 cannot rotate clockwise, preventing the toothed ratchet 9 from rotating counterclockwise. At this time, the nut is inserted into the sleeve 6, and the relative positions of the nut and sleeve 6 are fixed by the retaining spring 8. The wrench can be operated to rotate clockwise around the nut to tighten it. When the wrench is operated to rotate the nut clockwise, since the limiting block 4 is located on the second working ramp 1005, and since the lever 1004 is not restricted from moving to the right, the toothed ratchet 9 will rotate clockwise, causing the reversing pawl 10 to rotate counterclockwise. Through the elasticity of the spring 3, the lever 1004 will reset and stop, causing the reversing pawl 10 to rotate counterclockwise, and the lever 1004 will return to its original position. Figure 1 Location.

[0032] In order to reinforce the positional fixation between the sleeve 6 and the nut, in one embodiment of the present invention, a retaining spring 8 is provided inside the sleeve 6 to fix the relative position of the sleeve 6 and the nut; in another embodiment of the present invention, an installation groove is provided on the sleeve 6, and a retaining spring 8 is sleeved on the sleeve 6 to fix the relative position of the sleeve 6 and the nut, and the two sides of the retaining spring 8 are embedded in the installation groove and extend into the inside of the sleeve 6.

[0033] In order to avoid the reversing pawl 10 from being hit during the rotation of the toothed ratchet 9, thereby affecting the rotation of the toothed ratchet 9, in a preferred embodiment of the present invention, a groove 1006 is formed on one side of the reversing pawl 10, which is disposed between the first engagement portion 1001 and the second engagement portion 1003.

[0034] like Figure 6 As shown, this utility model embodiment also provides a multi-functional tool, including the aforementioned reversible ratchet handle, and at least one extension is rotatably provided at the end of the pliers handle housing 1 away from the mounting base 5, the extension including hardware tools such as cutting blades and needle-nose pliers clamps.

[0035] In summary, this reversible ratchet handle and multi-functional tool allows the ratchet handle to switch its working state through the reversible pawl 10 and the pliers handle housing 1, enabling the ratchet handle to perform unidirectional ratchet functions in two different working states, that is, to achieve locking and driving in two directions.

[0036] The embodiments described above merely illustrate the implementation of this utility model, and should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A reversible ratchet handle for turning a nut, characterized in that The utility model provides a kind of reversing pawl and fixed assembly, and the utility model includes pincer handle shell (1), reset component, reversing pawl (10) and fixed assembly, one end of pincer handle shell (1) is formed with installation cavity (101), reset component is embedded in installation in installation cavity (101), the end of pincer handle shell (1) formed with installation cavity (101) extends and is formed with two mounting seats (5), and two mounting seats (5) are symmetrically arranged in the both sides of the end of pincer handle shell (1), fixed assembly is rotatably arranged between two mounting seats (5), reversing pawl (10) is rotatably arranged between reset component and fixed assembly; Fixed assembly includes sleeve (6) being arranged on mounting seat (5) and ratchet (9) being sleeved on the outside of sleeve (6), sleeve (6) is connected with ratchet (9) key, one end of sleeve (6) is formed with the first clamping groove (7) being adapted to the outer contour of nut; The side of reversing pawl (10) close to reset component is formed with first working slope (1002) and second working slope (1005), and the first working slope (1002) and the second working slope (1005) are formed with blocking protrusion (1007) between them, the side of reversing pawl (10) close to ratchet (9) is provided with first engaging part (1001) and second engaging part (1003) for engaging with ratchet (9) at intervals, and the reversing pawl (10) is also formed with a push rod (1004), the push rod (1004) extends out of the outer surface of the pincer handle shell (1) through the limiting slot (102) opened on the pincer handle shell (1); Reset component includes mounting piece (2) being adapted to the shape of installation cavity (101) and limiting block (4) being elastically connected with mounting piece (2), limiting block (4) is connected on the side of mounting piece (2) close to reversing pawl (10); When the end of the push rod (1004) and the limiting slot (102) away from the fixed assembly abuts, the limiting block (4) abuts with the second working slope (1005), the first engaging part (1001) engages with the ratchet (9), when the end of the push rod (1004) and the limiting slot (102) close to the fixed assembly abuts, the limiting block (4) abuts with the first working slope (1002), the second engaging part (1003) engages with the ratchet (9).

2. A reversible ratchet handle according to claim 1, characterised in that, The end of the mounting piece (2) away from the pincer handle shell (1) is formed with a placing slot (201), and the spring (3) is arranged in the placing slot (201), and the end of the spring (3) away from the placing slot (201) is provided with the limiting block (4).

3. A reversible ratchet handle according to claim 1, wherein, The sleeve (6) is provided with a clamping spring (8) for fixing the relative position of the sleeve (6) and the nut.

4. A reversible ratchet handle according to claim 1, wherein, The sleeve (6) is provided with a mounting slot, and the sleeve (6) is sleeved with a clamping spring (8) for fixing the relative position of the sleeve (6) and the nut, and the clamping spring (8) is embedded into the mounting slot on both sides and extends into the inside of the sleeve (6).

5. The reversible ratchet handle of claim 1, wherein, The side of the reversing pawl (10) is formed with a sliding groove (1006) arranged between the first engaging part (1001) and the second engaging part (1003).

6. The reversible ratchet handle of claim 1, wherein, The sleeve (6) is provided with a key in the shape of a flower, and the ratchet (9) is provided with a second clamping groove matched with the shape of the key.

7. A multi-function tool characterized by, The reversible ratchet handle according to any one of claims 1-6, wherein the handle housing (1) is rotatably provided with at least one extension at the end away from the mounting base (5), the extension comprising a cutting blade and a pair of needle-nose pliers.

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