TWI890553B - Ratchet wrench assembly structure - Google Patents

Abstract

A ratchet wrench assembly structure includes a wrench lever, a ratchet set, a buckle and a control set. The wrench lever includes a rod with a working end and a fixed end. The working end is provided with a tool hole, and the fixed end is provided with a flange and a ring groove. The ratchet set includes a ratchet seat, a ratchet piece and a latch piece. The ratchet seat is arranged on the flange, and the ratchet piece is arranged in the ratchet seat together with the latch piece. The buckle is combined in the ring groove and abuts against the ratchet seat. The ratchet seat is clamped by the buckle and positioned on the fixed end. The control set is movably arranged on the ratchet seat and includes an operation key, a latch and a spring combined in the operation key. The latch is combined with the spring to elastically resist the latch piece, so that the latch piece blocks the ratchet piece.

Description

Ratchet wrench assembly structure

This case relates to hand tools, particularly a ratchet wrench combination structure.

Ratchet wrench assemblies are a common hand tool widely used in mechanical maintenance and assembly work. They are primarily used to tighten or loosen bolts and nuts. The ratchet mechanism provides continuous rotation in one direction, enabling quick and efficient operation.

Furthermore, conventional ratchet wrench assemblies are equipped with a ratchet component. The ratchet component is assembled by a retaining ring that engages between an annular groove in the wrench body and a concave annular groove in the ratchet component. A protruding abutment is provided on the bottom side of the wrench body to support the ratchet component and prevent it from separating from the body. However, the manufacturing process of the aforementioned ratchet wrench assembly is relatively complicated, resulting in inconvenience in assembly.

In light of this, the applicant has conducted intensive research on the aforementioned prior art and, through the application of theoretical knowledge, has endeavored to resolve the aforementioned issues, which has become the goal of the applicant's improvement.

One of the objectives of this application is to provide a ratchet wrench assembly structure to simplify the assembly process and method, thereby increasing assembly convenience.

To achieve the aforementioned objectives, this invention provides a ratchet wrench assembly structure comprising a wrench rod, a ratchet assembly, a retaining ring, and a control assembly. The wrench rod comprises a rod body with a working end and a fixed end. The working end is provided with a tool hole, and the fixed end is provided with a flange and an annular groove at intervals. The ratchet assembly comprises a ratchet seat, a ratchet member, and a latching member. The ratchet seat is seated on the flange, and the ratchet member and the latching member are mounted in the ratchet seat. The retaining ring engages in the annular groove and abuts against the ratchet seat. The ratchet seat is clamped by the retaining ring and positioned on the fixed end. The control assembly is movably mounted on the ratchet seat and comprises an operating key, a latch engaged in the operating key, and a spring. The latch is coupled to a spring to elastically engage the latching member, thereby causing the latching member to engage the ratchet member.

In one embodiment of the present invention, the ratchet wrench assembly structure further includes a T-shaped handle, which is coupled to the rod and houses the ratchet assembly.

In one embodiment of the present invention, the ratchet wrench assembly structure further includes a fixed ring that is latched onto one end of the T-shaped handle. A latching groove is provided between the working end and the fixed end of the rod. The T-shaped handle is secured to the rod by the fixed ring being engaged with the latching groove.

In one embodiment of the present invention, the ratchet wrench assembly structure further includes a cover plate coupled to a T-shaped handle. The T-shaped handle is provided with a slide groove. An opening is formed between the cover plate and the T-shaped handle, exposing the slide groove. One end of the operating button protrudes from the opening and is exposed on the slide groove.

In one embodiment of the present invention, the T-shaped handle has a storage space comprising a first cavity and a second cavity that are connected to each other. The first cavity has a bottom plate and accommodates a ratchet seat, while the second cavity has a slide groove and accommodates a cover plate.

In one embodiment of the present invention, the ratchet seat is provided with an opening. The operating key includes a key portion and a lever portion. The key portion extends into the opening to abut against the ratchet member. The lever portion can rotate left and right along the guide slot under the action of an external force.

In one embodiment of the present invention, a receiving hole is provided on the key portion, and a spring is placed around a pin and inserted into the receiving hole.

In one embodiment of the present invention, the latch has a head and a shaft, and a spring is sleeved over the shaft, with one end of the spring abutting the head and the other end abutting the wall of the receiving hole.

In one embodiment of the present invention, the outer periphery of the ratchet member has a plurality of equally spaced first teeth, and the latch member has a plurality of continuous second teeth on the side facing the ratchet member. The latch member is pushed by a latch pin, causing the second teeth to engage the first teeth.

In one embodiment of the present invention, the ratchet wrench assembly structure further includes a sleeve having a plurality of anti-slip ribs, which is fitted over the working end.

Compared to conventional methods, the wrench rod of the ratchet wrench assembly in this case is provided with a flange and an annular groove. The ratchet assembly is mounted on the flange, and a retaining ring engages in the annular groove to clamp the ratchet seat. This method positions the ratchet assembly on the wrench rod, eliminating the conventional process of providing a concave annular groove and a flange on the inner edge of the ratchet component. This simplifies the assembly process and method, improving assembly convenience.

1: Ratchet wrench assembly structure

10: Wrench

11: Shaft

110: Tool hole

111: Workstation

112: Fixed end

113: flange

114: Ring Groove

115: Buckle slot

20: Ratchet assembly

21: Ratchet seat

210:Through hole

211: Slotting

212: Opening

22: Ratchet

221: First tooth

23: Latch

231: Second tooth

30: Buckle

40: Control group

41: Operation keys

410: Volume

411:Key part

412: Pull

42: Latch

421: Head

422: Shaft

43: Spring

50: Sleeve

51: Anti-slip ribs

60: T-shaped grip

600: Storage space

61: Chute

62: First chamber

621: Baseboard

63: Second chamber

70: Cover plate

700: Opening

80: Fixed ring

Figure 1 is a schematic diagram of the three-dimensional appearance of the ratchet wrench assembly structure in this case.

Figures 2 and 3 are exploded views of the ratchet wrench assembly structure from two sides.

Figures 4 and 5 are exploded views of the ratchet assembly and control assembly from two sides of this case.

Figure 6 is a cross-sectional view of the ratchet wrench assembly structure of this case.

Figures 7 and 8 are partial enlarged views of the ratchet wrench assembly structure from two sides.

The detailed description and technical content of this case are provided below with accompanying drawings. However, the attached drawings are provided for reference and explanation only and are not intended to limit this case.

Please refer to Figures 1 to 3, which are schematic three-dimensional external views and exploded three-dimensional views from two sides of the ratchet wrench assembly structure of this invention, respectively. The ratchet wrench assembly structure 1 of this invention includes a wrench rod 10, a ratchet assembly 20, a retaining ring 30, and a control assembly 40. The ratchet assembly 20 is positioned on the wrench rod 10 via the retaining ring 30. The control assembly 40 is mounted on the ratchet assembly 20. The control assembly 40 moves under the action of an external force and compresses the ratchet assembly 20. As a result, the wrench rod 10 can be rotated in a predetermined direction to tighten or loosen a nut or bolt. A more detailed description of the ratchet wrench assembly structure 1 is provided below.

The wrench rod 10 includes a rod body 11. The rod body 11 has a working end 111 and a fixed end 112. The working end 111 is provided with a tool hole 110. The fixed end 112 is provided with a flange 113 and an annular groove 114.

The ratchet assembly 20 includes a ratchet base 21, a ratchet member 22, and a latch member 23. The ratchet base 21 is mounted on the flange of the wrench rod 10, and the ratchet member 22 and the latch member 23 are mounted in the ratchet base 21.

Furthermore, the retaining ring 30 engages within the annular groove 114 and abuts against the ratchet base 21. The ratchet base 21 is positioned on the fixed end 112 by the retaining ring 30. Furthermore, the control assembly 40 is movably mounted on the ratchet base 21 to operate the ratchet assembly 20, causing it to rotate in a predetermined direction.

In this embodiment, the ratchet wrench assembly structure 1 further includes a sleeve 50. The sleeve 50 has a plurality of anti-slip ribs 51 and fits over the working end 111. The sleeve 50 is configured to be gripped by a user and moved to a working position.

The ratchet wrench assembly structure 1 further includes a T-shaped handle 60 and a cover 70 coupled to the T-shaped handle 60. The T-shaped handle 60 is coupled to the rod 11 and houses the ratchet assembly 20. Furthermore, the T-shaped handle 60 is provided with a slot 61. An opening 700 is formed between the cover 70 and the T-shaped handle 60, exposing the slot 61.

The ratchet wrench assembly structure 1 further includes a fixing ring 80 that is latched onto one end of the T-shaped handle 60. The rod 11 is provided with a latching groove 115 between the working end 111 and the fixing end 112. The T-shaped handle 60 is secured to the rod 11 by the fixing ring 80 being engaged with the latching groove 115.

Specifically, the T-shaped handle 60 has a receiving space 600 comprising a first cavity 62 and a second cavity 63 that are interconnected. The first cavity 62 has a bottom plate 621 and accommodates the ratchet seat 21. The second cavity 63 has a slide groove 61 and accommodates the cover plate 70.

Please refer to Figures 4 and 5, which are exploded perspective views of the ratchet assembly and control assembly of this embodiment from two sides. The ratchet assembly 20 of this embodiment includes a ratchet base 21, a ratchet member 22, and a latching member 23. The ratchet base 21 is provided with a through-hole 210 and a slot 211 communicating with the through-hole 210. The ratchet member 22 is positioned in the through-hole 210. The latching member 23 is disposed in the slot 211 and is located on one side of the ratchet member 22. Furthermore, the outer periphery of the ratchet member 22 has a plurality of equally spaced first teeth 221. The latching member 23 has a plurality of continuous second teeth 231 on the side facing the ratchet member 22.

Furthermore, the control assembly 40 includes an operating button 41 and a latch 42 and a spring 43 coupled to the operating button 41. The latch 42 is coupled to the spring 43 to elastically bias the latch 23, thereby causing the latch 23 to engage the ratchet 22.

Specifically, the ratchet base 21 is provided with an opening 212. Furthermore, the operating key 41 includes a key portion 411 and a pull portion 412. The key portion 411 extends into the opening 212 to abut against the ratchet member 22. In this embodiment, the key portion 411 is provided with a receiving hole 410. The spring 43 is sheathed around the latch 42 and inserted into the receiving hole 410.

Please also refer to Figures 6 to 8, which are cross-sectional views and partial enlarged views of the ratchet wrench assembly structure of this invention. The ratchet wrench assembly structure 1 of this invention comprises a wrench rod 10, a ratchet assembly 20, a retaining ring 30, a control assembly 40, and the T-shaped handle 60. The wrench rod 10 has a body 11 with a flange 113 and an annular groove 114 at its fixed end 112. The ratchet assembly 20 is mounted on the flange 113, and the retaining ring 30 engages in the annular groove 114 and abuts against the ratchet seat 21, thereby securing the ratchet assembly 20 to the wrench rod 10. Furthermore, the body 11 has a tool hole 110 at its working end 111 for engaging and rotating a bolt or nut.

The control assembly 40 includes an operating button 41, a latch 42, and a spring 43. One end of the operating button 41 protrudes from the opening and is exposed on the slide 61. Specifically, the operating button 41 includes a lever 412. Under an external force, the lever 412 can rotate left and right along the slide 61 of the T-shaped handle 60. Furthermore, the latch 42 has a head 421 and a shaft 422. The spring 43 is positioned around the shaft 422, with one end of the spring 43 abutting the head 421 and the other end abutting the wall of the receiving hole 410.

As shown in Figure 8 , the outer periphery of the ratchet member 22 has a plurality of equally spaced first teeth 221. The latching member 23 has a plurality of continuous second teeth 231 on the side facing the ratchet member 22. The latching member 23 is pushed against by the latch 42, causing the second teeth 231 to engage the first teeth 221, enabling the ratchet wrench assembly structure 1 to tighten and loosen nuts or bolts.

The above description is merely a preferred embodiment of this case and is not intended to define the scope of the patent. Other equivalent variations that utilize the spirit of the patent should also fall within the scope of the patent.

1: Ratchet wrench assembly structure

10: Wrench

11: Shaft

110: Tool hole

20: Ratchet assembly

30: Buckle

40: Control group

412: Pull

50: Sleeve

51: Anti-slip ribs

60: T-shaped grip

61: Chute

62: First chamber

63: Second chamber

70: Cover plate

700: Opening

80: Fixed ring

Claims (8)

A ratchet wrench assembly structure comprises: a wrench rod including a rod body having a working end and a fixed end, the working end being provided with a tool hole, and the fixed end being provided with a flange and an annular groove at intervals; a ratchet assembly including a ratchet seat, a ratchet member, and a latching member, the ratchet seat being disposed on the flange, the ratchet member and the latching member being disposed in the ratchet seat; a retaining ring engaged in the annular groove and abutting against the ratchet seat, the ratchet seat being clamped by the retaining ring and positioned on the fixed end; A control assembly is movably disposed on the ratchet seat, comprising an operating key and a pin and a spring coupled to the operating key, wherein the pin is coupled to the spring to elastically resist the latching member, thereby causing the latching member to engage the ratchet member; a T-shaped handle is coupled to the rod body and accommodates the ratchet assembly; and a fixing ring is buckled at one end of the T-shaped handle, wherein the rod body is provided with a buckle groove between the working end and the fixed end, and the T-shaped handle is fixed to the rod body by being embedded in the buckle groove through the fixing ring. The ratchet wrench assembly structure as described in claim 1 further includes a cover plate coupled to the T-shaped handle, the T-shaped handle being provided with a slide groove, an opening being formed between the cover plate and the T-shaped handle and exposing the slide groove, and one end of the operating key protruding from the opening and exposed on the slide groove. As described in claim 2, the ratchet wrench assembly structure, wherein the T-shaped handle has a accommodating space, including a first cavity and a second cavity connected to each other, the first cavity has a bottom plate and accommodates the ratchet seat, and the second cavity has the slide groove and accommodates the cover plate. As described in claim 2, the ratchet wrench assembly structure, wherein the ratchet seat is provided with an opening, the operating key includes a key portion and a lever portion, the key portion extends into the opening to abut against the ratchet component, and the lever portion can rotate left and right along the slide groove under the action of an external force. The ratchet wrench assembly structure as described in claim 4, wherein the key portion is provided with a receiving hole, and the spring is sleeved on the pin and penetrates the receiving hole. As described in claim 5, the ratchet wrench assembly structure, wherein the pin has a head and a shaft, the spring is sleeved outside the shaft, and one end of the spring abuts the head and the other end abuts the wall of the receiving hole. A ratchet wrench assembly structure as described in claim 2, wherein the outer periphery of the ratchet member has a plurality of equidistantly arranged first teeth, and the latch member has a plurality of continuous second teeth on the side facing the ratchet member, and the latch member is pushed by the pin, thereby causing the second teeth to latch the first teeth. The ratchet wrench assembly structure as described in claim 1 further includes a sleeve having a plurality of anti-slip ribs, which is fitted onto the outside of the working end.