TWM658695U - Ratchet wrench - Google Patents

Abstract

The invention relates to a ratchet wrench, comprising: a rod body, the two ends of which respectively include a working head and a handle, the working head including a chamber; a ratchet member rotatably accommodated in the chamber, having a connecting portion for assembling with a driving member; a latching member accommodated in the chamber; a toggle button inserted in the working head, including a body extending into the chamber and A toggle portion is blocked at the outer side of the working head, and the body includes an insertion hole and a receiving hole; a fixing plate is inserted into the insertion hole, and is provided with a hollow portion and can be elastically connected to the body, which limits the latching member between the fixing plate and the inner surface of the chamber; and an elastic top mechanism is received in the receiving hole and elastically presses against the latching member to make the latching member engage with the ratchet member.

Description

Ratchet wrench

This invention relates to a hand tool, in particular to a ratchet wrench.

Generally, when performing locking operations, hand tools such as ratchet wrenches are used to lock the locking pieces to achieve a labor-saving effect, such as using a socket wrench to loosen/tighten bolts, nuts, etc.; or, according to different driven parts, a driving tool head can be replaceably connected to a socket of the hand tool.

Among them, a general ratchet wrench is provided with a dial that can switch the rotation direction of the driving head, so as to quickly switch the required driving direction. Generally, a ratchet wrench is known to be held and limited by a solid plate inserted in the dial to hold and limit the latch member that engages with the driving head. However, it is known that the solid plate cannot be firmly abutted against the hole wall of the insertion hole of the dial, causing the solid plate to move at will, which has a poor holding effect on the latch member, resulting in poor engagement between the latch member and the driving head, and further affecting the operating performance of the ratchet wrench.

Therefore, it is necessary to provide a novel and advanced ratchet wrench to solve the above-mentioned problems.

The main purpose of this invention is to provide a ratchet wrench that can provide a stable, good and reliable component retention effect, and can further improve the operating performance of the ratchet wrench.

To achieve the above-mentioned purpose, the invention provides a ratchet wrench, comprising: a rod body, the two ends of which respectively include a working head and a handle, the working head including a chamber; a ratchet member rotatably accommodated in the chamber, having a connecting portion for assembling with a driving member; a latching member accommodated in the chamber; a toggle button inserted in the working head, including a The invention relates to a body and a toggle portion which is blocked at the outer side of the working head, wherein the body includes an insertion hole and a receiving hole; a fixing plate which is inserted into the insertion hole and is provided with a hollow portion which can be elastically connected to the body, so that the latching member is restricted between the fixing plate and the inner surface of the chamber; and an elastic top mechanism which is received in the receiving hole and elastically presses against the latching member to make the latching member engage with the ratchet member.

The following is merely an example to illustrate possible implementations of the present invention, but it is not intended to limit the scope of protection for the present invention, so it should be stated in advance.

Please refer to Figures 1 to 8, which show an embodiment of the present invention. The ratchet wrench 1 of the present invention includes a rod 10, a ratchet member 20, a latch member 30, a button 40, a fixing plate 50 and a spring-loaded mechanism 60.

The two ends of the rod body 10 include a working head 11 and a handle 12 respectively. The working head 11 includes a chamber 111. The ratchet member 20 is rotatably accommodated in the chamber 111. The ratchet member 20 has a connecting portion 21 (which can be a male connector or a female connector hole) for assembling with a driving member (such as a sleeve, a connecting rod, a tool head, etc.). The latch member 30 is accommodated in the chamber 111. The latch member 30 includes a plurality of teeth that can limit the one-way rotation of the ratchet member 20. The toggle button 40 is inserted into the working head 11. The toggle button 40 includes a body 41 extending into the chamber 111 and a toggle portion 42 that is locked on the outside of the working head 11. The body 41 includes an insertion hole 411 and a receiving hole 412. The fixing plate 50 is inserted into the insertion hole 411. The fixing plate 50 has a hollow portion 51 and can be elastically clamped to the body 41. The fixing plate 50 blocks the latching member 30 between the fixing plate 50 and the inner surface of the chamber 111. The elastic top mechanism 60 is accommodated in the receiving hole 412 and elastically presses against the latching member 30 so that the latching member 30 and the ratchet member 20 are engaged.

The lever 42 is turned to drive the latch 30 to move and change the engagement direction between the latch 30 and the ratchet 20, thereby switching the direction in which the ratchet 20 can rotate in one direction. In addition, the fixing plate 50 can be stably and elastically engaged with the body 41 without any random change, and can stably and effectively maintain the position of the latch 30, so that the latch 30 and the ratchet 20 have good and reliable engagement, and can further improve the operating performance of the ratchet wrench 1.

In detail, the fixing piece 50 extends radially to more than half the thickness of the latch 30, which can increase the effect of stabilizing the latch 30. The hollow portion 51 includes a cutout 511, one end of which is open to one side of the fixing piece 50, which helps the spring-on effect of the fixing piece 50. More specifically, the fixing piece 50 is generally Ω-shaped, and the fixing piece 50 further includes a U-shaped clip body 52 and two clamping blocks 53 connected to the two ends of the U-shaped clip body 52. The U-shaped clip body 52 passes through the insertion hole 411 and springs against the hole wall of the insertion hole 411. The two clamping blocks 53 are blocked on one side of the body 41, which can be very stably and reliably configured. The two clamping blocks 53 may be planarly abutted against one side of the body 41 , or the two clamping blocks 53 may be gradually contracted toward the insertion hole 411 and partially inserted into the insertion hole 411 , both of which may enhance the stability and fixing effect of the fixing plate 50 .

In this embodiment, the U-shaped clip body 52 includes a bent section 521 and two legs 522 respectively connected between the two ends of the bent section 521 and the two clamping blocks 53. A thinned portion 523 is formed between each leg 522 and the bent section 521 to facilitate the elastic deformation of the fixing plate 50. The hollow portion 51 further includes an open end 54, and the hollow portion 51 gradually expands toward the open end 54, so that the fixing plate 50 is allowed to have a greater degree of elastic deformation, which can ensure that the fixing plate 50 is reliably elastically supported on the body 41. The hollowed portion 51 further includes a closed end 55, and the closed end 55 includes an enlarged slot 551, which also helps the elastic deformation ability of the fixing piece 50. Preferably, the fixing piece 50 is gradually thinned from the closed end 55 toward the open end 54, and there is a gap G between the portion of the fixing piece 50 close to the open end 54 and the hole wall of the insertion hole 411, so that the portion of the fixing piece 50 close to the latch 30 abuts against the hole wall of the insertion hole 411, providing a stronger effect of limiting the latch 30.

1: ratchet wrench 10: rod 11: working head 111: chamber 12: handle 20: ratchet 21: assembly 30: latch 40: toggle 41: body 411: socket 412: receiving hole 42: toggle part 50: fixing plate 51: hollowing part 511: slot 52: U-shaped clamp 521: bending section 522: foot section 523: thinning section 53: block 54: open end 55: closed end 551: enlarged slot 60: spring top mechanism G: gap

Figure 1 is a three-dimensional diagram of an embodiment of the present invention. Figure 2 is a partial exploded diagram of an embodiment of the present invention. Figure 3 is another partial exploded diagram of an embodiment of the present invention. Figure 4 is a first partial cross-sectional diagram of an embodiment of the present invention. Figure 5 is a second partial cross-sectional diagram of an embodiment of the present invention. Figure 6 is a third partial cross-sectional diagram of an embodiment of the present invention. Figures 7 to 8 are schematic diagrams of the coordination of a dial and a fixing plate of an embodiment of the present invention.

11: Working head

20: Ratchet

21: Assembly and connection part

30: latch

41: Body

50:Fixed piece

60: Pop-up mechanism

Claims (10)

A ratchet wrench comprises: A rod body, whose two ends respectively include a working head and a handle, the working head includes a chamber; A ratchet member, rotatably accommodated in the chamber, having a connecting portion for assembling with a driving member; A latching member, accommodated in the chamber; A toggle button, inserted in the working head, including a body extending into the chamber and a toggle portion latched on the outside of the working head, the body including an insertion hole and a receiving hole; A fixing plate, inserted in the insertion hole, provided with a hollow portion and elastically latched on the body, which restricts the latching member between the fixing plate and the inner surface of the chamber; and A spring-loaded mechanism is accommodated in the receiving hole and elastically presses against the latching member to make the latching member engage with the ratchet member. A ratchet wrench as described in claim 1, wherein the fixing plate extends radially to more than half the thickness of the latch. A ratchet wrench as described in claim 1, wherein the hollow portion includes a slot, one end of which is open to one side of the fixing plate. A ratchet wrench as described in claim 3, wherein the fixing plate is generally Ω-shaped. A ratchet wrench as described in claim 3, wherein the fixing plate includes a U-shaped body and two clamps connected to the two ends of the U-shaped body, the U-shaped body passes through the insertion hole and bounces against the hole wall of the insertion hole, and the two clamps are blocked on one side of the body. A ratchet wrench as described in claim 5, wherein the U-shaped clamping body includes a bent section and two leg sections respectively connected to two ends of the bent section and between the two clamping blocks, and a thinned portion is formed between each leg section and the bent section. A ratchet wrench as described in any one of claims 1 to 6, wherein the hollow portion includes an open end and the hollow portion gradually expands toward the open end. A ratchet wrench as described in claim 7, wherein the hollow portion further includes a closed end, and the closed end includes an enlarged slot hole. A ratchet wrench as described in claim 8, wherein the fixing plate gradually becomes thinner from the closed end toward the open end. A ratchet wrench as described in claim 7, wherein there is a gap between the portion of the fixing plate close to the open end and the wall of the hole of the socket.

Images