Ratchet wrench

Abstract

The utility model relates to a ratchet wrench which comprises a body, a first working head, an inserting rod, two adapters and a driving head. The first working head comprises a first seat body and a first ratchet wheel, the first seat body is arranged at one end of the body, and the first ratchet wheel is rotatably arranged on the first seat body with a first rotating shaft as the center. And the insertion rod is separably inserted into the first ratchet wheel along the first rotating shaft to form a co-rotating relationship. The two adapters are detachably assembled to the two opposite sides, protruding out of the first working head, of the inserting rod respectively, and when the inserting rod is not inserted into the first ratchet wheel, the adapters can be inserted into the first ratchet wheel along the first rotating shaft to form a co-rotating relation. The driving head is arranged at the other end of the body and used for being assembled with a to-be-rotated piece.

Description

TECHNICAL FIELD

[0001] The present utility model relates to a wrench, in particular to a ratchet wrench. BACKGROUND

[0002] A ratchet wrench allows a user to rotate a fastener, such as a screw, bolt, nut, etc., by repeatedly moving his hand back and forth in a limited space. The ratchet wrench has a ratchet mechanism as its core component, which allows the fastener to be rotated in a default driving direction but not in the reverse direction, thereby greatly reducing the required operating space and eliminating the need to frequently change the position of the hand for rotation, thus effectively improving work efficiency.

[0003] However, conventional ratchet wrenches typically have a single head with a ratchet mechanism fixed to one end of a handle. The flexibility and deformability of such wrenches are greatly restricted, and the operation mode is not very versatile, making them unsuitable for use in various environments.

[0004] Therefore, it is necessary to provide a novel and improved ratchet wrench to solve the above problems. SUMMARY

[0005] The main purpose of the present utility model is to provide a ratchet wrench that allows a plug rod to be inserted into a first ratchet and used in the form of an L-shaped rod or a T-shaped rod, so that an adapter connected to the plug rod can be inserted into various narrow spaces to drive a fastener to rotate. The adapter can also be directly inserted into the first ratchet for use, providing multiple use modes for users to choose from.

[0006] To achieve the above purpose, the present utility model provides a ratchet wrench, which includes a body, a first working head, a plug rod, two adapters, and a driving head. The first working head includes a first seat and a first ratchet. The first seat is provided at one end of the body, and the first ratchet is rotatably provided at the first seat with a first rotation axis as the center. The plug rod can be detachably inserted into the first ratchet along the first rotation axis to form a rotating relationship. The two adapters are respectively detachably connected to the opposite sides of the plug rod protruding from the first working head, and when the plug rod is not inserted into the first ratchet, each adapter can be inserted into the first ratchet along the first rotation axis to form a rotating relationship. The driving head is provided at the other end of the body for connecting a rotating member.

[0007] Each adapter includes a blocking portion, a body portion, and a head portion. The blocking portion protrudes laterally from one side of the body portion. The blocking portion and the first ratchet interfere with each other in the direction of the first rotation axis. The body portion can be inserted into the first ratchet. The head portion protrudes axially from the opposite side of the body portion relative to the blocking portion.

[0008] The cross-sectional profile of the shank is polygonal.

[0009] Each adapter further comprises a socket extending from a side of the body away from the head toward the head. The shank comprises a shank body and two sets of connectors axially protruding from opposite end faces of the shank body. The sets of connectors are detachably inserted into the socket.

[0010] The head of the first adapter is different in size from the head of the second adapter.

[0011] The first seat body is pivotally disposed on a first set of connecting portions of the main body about a first pivot axis. The first pivot axis is non-intersecting with the first rotation axis.

[0012] The ratchet wrench further comprises a second working head. The second working head comprises a second seat body, a second ratchet, and the driving head. The second seat body is pivotally disposed on a second set of connecting portions of the main body about a second pivot axis. The second pivot axis is transverse to the first pivot axis. The second ratchet is rotatably disposed on the second seat body about a second rotation axis. The second rotation axis is intersecting with the second pivot axis. The driving head is disposed on the second ratchet about the second rotation axis in a same rotation relationship.

[0013] One of the first set of connecting portions and the second set of connecting portions is recessed with a connecting space. The other one of the first set of connecting portions and the second set of connecting portions comprises two flat surfaces. One of the first seat body and the second seat body is pivotally inserted into the connecting space. The other one of the first seat body and the second seat body is pivotally clamped against the two flat surfaces.

[0014] When the first rotation axis and the second pivot axis are parallel to each other, the first working head does not exceed the second working head in an extension direction of the second pivot axis.

[0015] The cross-sectional profile of the plug and the cross-sectional profile of the body are both polygonal; the head dimensions of the two adapters are different; the first base is pivotally mounted on a first joint of the body about a first pivot axis, and the first rotation axis and the first pivot axis are not intersecting; the ratchet wrench further includes a second working head, which includes a second base, a second ratchet, and a drive head. The second base is pivotally mounted on a second joint of the body about a second pivot axis, which is transverse to the first pivot axis. The second ratchet is rotatably mounted on the second base about a second rotation axis, which is intersecting the second pivot axis. The drive head is pivotally mounted on the second base about a second rotation axis. The second rotating shaft is centered on the second ratchet and rotates in the same direction; one of the first and second connecting parts is recessed with a connecting space, and the outer contour of the other includes two flat surfaces; one of the first and second seats can be oscillatingly inserted into the connecting space, and the other can be oscillatingly clamped against the two flat surfaces; when the first rotating shaft and the second oscillating shaft are parallel to each other, the first working head does not extend beyond the second working head in the extension direction of the second oscillating shaft; in the direction of the first rotating shaft, the length of the body is greater than the length of the head; the size of each connecting part corresponds to the size of the head of the adapter it is connected to; the size of the drive head is different from the head size of the two adapters.

[0016] The beneficial effects of this utility model are as follows: The ratchet wrench of this utility model allows the insert rod to be inserted into the first ratchet and used in the form of an L-bar or a T-bar. The adapter connected to the insert rod can be inserted into various narrow spaces to drive the fastener to rotate. The adapter can also be directly inserted into the first ratchet for use, providing multiple usage modes for users to choose from. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0018] Figure 2 for Figure 1 The exploded diagram.

[0019] Figure 3 for Figure 1 A schematic diagram showing the interference between the stop of the adapter and the first ratchet.

[0020] Figure 4 This is a perspective view of an adapter inserted into a first ratchet according to an embodiment of the present invention.

[0021] Figure 5 This is a perspective view of the main body, the first working head, and the second working head according to an embodiment of the present invention.

[0022] Figure 6 for Figure 5 The exploded diagram.

[0023] Figure 7 This is a schematic diagram of the first working head swinging relative to the body in one embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram showing the second working head swinging relative to the main body according to an embodiment of the present invention.

[0025] Figure 9 and Figure 10 This is a different usage of one embodiment of the present utility model.

[0026] 1: Ontology

[0027] 11: First group connection

[0028] 111: Assembly Space

[0029] 12: Second group connection

[0030] 121: Flat surface

[0031] 2: First working head

[0032] 21: First Seat

[0033] 22: First ratchet

[0034] 3: Second working head

[0035] 31: Second body

[0036] 32: Second ratchet

[0037] 33: Drive Head

[0038] 4: Insert rod

[0039] 41: Shaft

[0040] 42: Connector

[0041] 5: Adapter

[0042] 51: Block

[0043] 52: Body

[0044] 53: Head

[0045] 54: Socket

[0046] 61: First rotation axis

[0047] 62: Second Rotation Axis

[0048] 63: First swing axis

[0049] 64: Second swing axis Detailed Implementation

[0050] The following embodiments are only used to illustrate the possible implementation manners of the utility model, and are not used to limit the scope of the utility model which is intended to be protected. The term "one" or "at least one" is not used to limit the quantity. According to the requirement, it can also be "a plurality of". The change in quantity is also the range intended to be protected. It is stated in advance.

[0051] Please refer to Figures 1 to 10 which shows an embodiment of the utility model. The ratchet wrench of the utility model comprises a body 1, a first working head 2, a plug rod 4, two adapter heads 5 and a driving head 33.

[0052] The first working head 2 comprises a first seat body 21 and a first ratchet wheel 22. The first seat body 21 is arranged at one end of the body 1. The first ratchet wheel 22 is rotatably arranged at the first seat body 21 with a first rotating shaft 61 as the center. The plug rod 4 is detachably inserted into the first ratchet wheel 22 along the first rotating shaft 61 to form the same rotating relationship. The two adapter heads 5 are respectively detachably connected to the opposite two sides of the plug rod 4 protruding from the first working head 2. Each of the two adapter heads 5 is connected to the member to be rotated. When the plug rod 4 is not inserted into the first ratchet wheel 22, each of the adapter heads 5 can be inserted into the first ratchet wheel 22 along the first rotating shaft 61 to form the same rotating relationship, so as to provide more variable operation modes. The driving head 33 is arranged at the other end of the body 1 to connect the member to be rotated.

[0053] In addition, when the plug rod 4 is inserted into the first ratchet wheel 22, two use modes of the user are provided, but not limited to. Mode one: like using an L-shaped rod, the adapter head 5 is inserted into the space to engage the member to be rotated through the plug rod 4. Then, the user holds the body 1 to drive the plug rod 4 to rotate through the first ratchet wheel 22. Mode two: like using a T-shaped rod, the driving head 33 engages the member to be rotated. The user holds the plug rod 4 to drive the body 1 to rotate.

[0054] More specifically, each of the adapter heads 5 comprises a blocking part 51, a body part 52 and a head part 53. The blocking part 51 protrudes laterally on one side of the body part 52. The blocking part 51 and the first ratchet wheel 22 interfere with each other in the direction of the first rotating shaft 61 to have the anti-disengagement effect. The body part 52 can be inserted into the first ratchet wheel 22. The head part 53 protrudes axially on the side opposite to the blocking part 51 of the body part 52 to connect the member to be rotated. In the direction of the first rotating shaft 61, the length of the body part 52 is greater than the length of the head part 53, so as to have sufficient structural strength to combine with the first ratchet wheel 22.

[0055] Preferably, the head 53 of the adapter 5 has a size different from that of the head 53 of the adapter 5, and the size of the driving head 33 is different from that of the head 53 of the adapter 5, so that more diverse shapes and sizes can be provided for users to choose according to their needs.

[0056] More specifically, each adapter 5 further includes a socket 54 extending from a side of the body 52 away from the head 53 toward the head 53. The insertion rod 4 includes a rod body 41 and two sets of connectors 42 axially protruding from opposite end surfaces of the rod body 41. The connectors 42 are detachably inserted into the socket 54, allowing users to quickly assemble or disassemble the insertion rod 4 and the adapter 5 through plug-in and plug-out.

[0057] Preferably, the size of each connector 42 corresponds to the size of the head 53 of the adapter 5 to which it is connected, so that users can quickly identify the assembly, and each connector 42 can even be directly connected to the rotating member.

[0058] Preferably, the cross-sectional profile of the insertion rod 4 and the cross-sectional profile of the body 52 are both polygonal, facilitating structural cooperation with other tools (such as a wrench) for rotation.

[0059] In this embodiment, the first seat 21 is pivotally arranged on a first set of connecting portions 11 of the body 1 about a first pivot axis 63, and the first pivot axis 63 and the first rotation axis 61 are arranged non-intersectingly. Moreover, the ratchet wrench further includes a second working head 3 including a second seat 31, a second ratchet 32, and the driving head 33. The second seat 31 is pivotally arranged on a second set of connecting portions 12 of the body 1 about a second pivot axis 64, and the second pivot axis 64 is transverse to the first pivot axis 63. The second ratchet 32 is rotatably arranged on the second seat 31 about a second rotation axis 62, and the second rotation axis 62 and the second pivot axis 64 are arranged intersectingly. The driving head 33 is arranged on the second ratchet 32 about the second rotation axis 62 in a same rotation relationship.

[0060] As can be seen from the above, the pivot regions of the first working head 2 and the second working head 3 are completely different in direction, allowing various different pivot angles to be applied, and in combination with the different rotation directions of the first ratchet 22 and the second ratchet 32, more use combinations can be further generated, and can be fully applied to various different environments.

[0061] Preferably, one of the first set of connecting portions 11 and the second set of connecting portions 12 is recessed with a set of connecting spaces 111, and the other has an outer contour including two flat surfaces 121. One of the first seat body 21 and the second seat body 31 is swingably inserted into the set of connecting spaces 111, and the other is swingably clamped against the two flat surfaces 121. The first set of connecting portions 11 and the second set of connecting portions 12 are connected to the first seat body 21 and the second seat body 31 respectively by a concave-convex different structure. In addition to facilitating the assembler to quickly identify the difference, the body 1 can also maintain a certain structural strength.

[0062] When the first rotating shaft 61 and the second swing shaft 64 are parallel to each other, the first working head 2 does not exceed the second working head 3 in the extension direction of the second swing shaft 64, and the user has more choices for application through the structural differences in different thicknesses and different sizes.

Claims

1. A ratchet wrench characterized by: The utility model relates to a multi-rotary tool, comprising: a body; a first working head, comprising a first seat and a first ratchet wheel, the first seat is arranged at one end of the body, the first ratchet wheel is rotatably arranged in the first seat with a first rotation axis as the center; a plug rod, which is detachably inserted into the first ratchet wheel along the first rotation axis to form the same rotating relationship; two adapters, which are respectively detachably connected to the opposite sides of the plug rod protruding from the first working head, and when the plug rod is not inserted into the first ratchet wheel, each adapter can be inserted into the first ratchet wheel along the first rotation axis to form the same rotating relationship; and a driving head arranged at the other end of the body for connecting a rotating member.

2. The ratchet wrench of claim 1 wherein: Each adapter comprises a blocking part, a body part and a head part, the blocking part protrudes laterally from one side of the body part, the blocking part and the first ratchet wheel interfere with each other in the direction of the first rotation axis, the body part can be inserted into the first ratchet wheel, and the head part protrudes axially from the side of the body part opposite to the blocking part.

3. The ratchet wrench of claim 2 wherein: The cross-sectional profile of the plug rod and the cross-sectional profile of the body part are both polygonal.

4. The ratchet wrench of claim 2 wherein: Each adapter further comprises an insertion hole extending from the side of the body part away from the head part towards the direction of the head part, the plug rod comprises a rod body and two connecting heads, the two connecting heads protrude axially from the opposite end faces of the rod body, and the connecting heads are detachably inserted into the insertion hole.

5. The ratchet wrench of claim 2 wherein: The head parts of the two adapters are different in size.

6. The ratchet wrench of any one of claims 1 to 5, wherein: The first seat is swingably arranged in a first connecting part of the body with a first swing axis as the axis, and the first rotation axis and the first swing axis are arranged in a non-intersecting manner.

7. The ratchet wrench of claim 6 wherein: Further comprising a second working head, the second working head comprises a second seat, a second ratchet wheel and the driving head, the second seat is swingably arranged in a second connecting part of the body with a second swing axis as the axis, the second swing axis is transverse to the first swing axis, the second ratchet wheel is rotatably arranged in the second seat with a second rotation axis as the center, the second rotation axis and the second swing axis are arranged in an intersecting manner, and the driving head is arranged in the second ratchet wheel with the second rotation axis as the center to form the same rotating relationship.

8. The ratchet wrench of claim 7 wherein: One of the first connecting part and the second connecting part is recessed with a connecting space, and the outer profile of the other comprises two flat surfaces, one of the first seat and the second seat is swingably inserted into the connecting space, and the other is swingably clamped against the two flat surfaces.

9. The ratchet wrench of claim 7 wherein: When the first rotation axis and the second swing axis are parallel to each other, the first working head does not exceed the second working head in the extension direction of the second swing axis.

10. The ratchet wrench of claim 4 wherein: The cross-sectional profile of the shank and the body is polygonal; the head of the adapter is different in size; the first seat is pivotally arranged on a first set of connecting portions of the body about a first pivot axis, the first pivot axis and the first pivot axis are not intersected; the ratchet wrench further comprises a second working head, the second working head comprises a second seat, a second ratchet and the driving head, the second seat is pivotally arranged on a second set of connecting portions of the body about a second pivot axis, the second pivot axis is transverse to the first pivot axis, the second ratchet is rotatably arranged on the second seat about a second rotation axis, the second rotation axis and the second pivot axis are intersected, the driving head is arranged on the second ratchet about the second rotation axis and is in the same rotation relationship; one of the first set of connecting portions and the second set of connecting portions is concave and the other is convex, one of the first seat and the second seat is pivotally connected to the connecting space, and the other is pivotally connected to the two flat surfaces; when the first rotation axis and the second pivot axis are parallel to each other, the first working head does not exceed the second working head in the extension direction of the second pivot axis; in the direction of the first rotation axis, the length of the body is greater than the length of the head; the size of each adapter corresponds to the size of the head of the adapter; the size of the driving head is different from the size of the head of the adapter.

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