TWI661905B - Ratchet assembly with rollable support structure - Google Patents

Abstract

The invention relates to a ratchet assembly with a rollable support structure, which comprises a casing and a sleeve fixing device. The sleeve fixing device passes through the casing and includes a sleeve positioning member, a rotating member and a reversing support. The sleeve positioning member is disposed in a fixed space of the housing. The sleeve positioning member includes a rotating portion, the rotating member is rotatably passed through the rotating portion, and the reversing support member is provided through the rotating movement. And a spring sleeve, a rolling ball, a spring, and an abutment, the rolling ball is rotatably disposed at one end of the spring sleeve, and the spring is different from the spring circle At one end of the bead, the abutting member extends into an end of the spring sleeve provided with a spring, and is sleeved on the spring, thereby effectively extending the service life of the spring.

Description

Ratchet assembly with rollable support structure

The invention relates to a ratchet assembly, in particular to a ratchet assembly having a rollable support structure.

A ratchet wrench is generally provided inside the ratchet wrench, so that the user can conveniently use it to tighten or loosen positioning members such as a nut. The ratchet wrench of the ratchet wrench has a reversing support, and the reversing support is integrated. It is shaped and formed into a semi-spherical shape at one end, and the reversing support member will continuously abut against the ratchet member and become worn during use.

In order to avoid the loss of the service life of the reversing support due to wear and tear during use, the applicant in China's patent certificate number 1535540 is provided with a rotatable ball at the front end of the reversing support, which can be used with Rotate and slide along the actuating position of the ratchet to increase the service life. However, in the aforementioned patent, one end of the spring directly abuts against the wall surface of the mounting hole of the sleeve positioning member, so that the spring is long. After time use, since the spring directly abuts against the wall surface of the mounting hole of the sleeve positioning member, the spring is prone to be distorted and deformed. Therefore, it is necessary to improve the existing ratchet assembly with a rolling support structure.

In order to solve the existing ratchet assembly with a rollable support structure, in use, the spring directly abuts against the wall surface of the mounting hole of the sleeve positioning member, and the spring is prone to be distorted. The main purpose of the present invention is to provide A ratchet assembly with a rollable support structure. The present invention mainly sets an abutment member on one end of the spring and the wall surface of the installation hole, so that the spring does not directly abut against the wall surface of the installation hole during the rotation, and can be effective. Extend the life of the spring.

A ratchet assembly with a rollable support structure, which is proposed by the present invention to solve the previous technical problems, includes a shell, the shell is hollow, and a fixed space is formed in the shell. Two opposite sides of the shell are respectively provided with an opening. Both openings are in communication with the fixed space; a ratchet member is correspondingly disposed in the fixed space of the casing, and the inner ring peripheral surface of the ratchet member is formed with a surrounding ratchet surface; and a sleeve fixed Device, the sleeve fixing device passes through the shell horizontally and is correspondingly clamped to the ratchet member, and includes a sleeve positioning member, a rotating member, a reversing support member and a pawl block, and the sleeve is positioned The sleeve positioning member includes a rotating portion, and a mounting hole is recessed in a center of a side of the rotating portion, and the rotating member is rotatably inserted through the opening of the casing. At the rotating part, the reversing support member passes through the rotating member and includes an elastic sleeve, a rolling ball, a spring, and an abutting member, and the rolling ball is rotatably disposed at the elastic movement. Sleeve The spring is disposed at an end different from the end where the rolling ball is provided, the abutment is provided with two ends, and one end of the abutment extends into an end of the spring sleeve provided with the spring, and is sleeved In the spring, the other end of the abutting member abuts against the wall surface of the mounting hole of the sleeve positioning member in an arc shape, the pawl block is pivotally mounted on the sleeve positioning member, and is clamped to the reversing support by the inside The rolling ball of the piece is locked on the ratchet tooth surface of the ratchet piece with one end of the pawl block correspondingly.

The aforesaid ratchet assembly with a rollable support structure, wherein the abutting member includes an abutting sleeve and an abutting ball, one end of the spring extends into and abuts the abutting sleeve, and the abutting circle The bead is rotatably disposed on the abutting sleeve, and the abutting ball is rotatably abutting the mounting hole of the sleeve positioning member.

In the aforementioned ratchet assembly with a rollable support structure, one end of the abutting sleeve is recessed to form a receiving groove, and one end of the spring extends into and abuts the receiving groove of the abutting sleeve. An end of the abutting sleeve different from the receiving groove is concavely formed with an abutting ball groove, and the abutting ball is rotatably provided in the abutting ball groove of the abutting sleeve.

The aforementioned ratchet assembly with a rollable support structure, wherein the abutment member is a cylindrical cylinder, one end of the abutment member is recessed to form a receiving groove, and one end of the spring extends into and abuts the abutment. In the receiving groove of the component, an end of the abutting member different from the receiving groove is convexly formed with an abutting flange, and the abutting flange abuts the mounting hole of the sleeve positioning member.

The aforementioned ratchet assembly with a rollable support structure, wherein the inner side surface of the pawl block is formed into a wavy shape with three concave arc-shaped positioning grooves, and the reversing support member is correspondingly clamped to one of the pawl blocks. Positioning slot.

The improved effect obtained by the technical means of the present invention is that, according to the present invention, through the design of the abutting member, the abutting ball of the abutting member can rotatably abut against the mounting hole of the sleeve positioning member, or The abutting member directly abuts the mounting hole of the sleeve positioning member with the abutting flange, which can reduce one end of the spring directly abutting the mounting hole of the sleeve positioning member, thereby improving the service life of the spring.

10‧‧‧Shell

11‧‧‧ fixed space

12‧‧‧ cover

13‧‧‧ opening

20‧‧‧ Ratchet

21‧‧‧ Ratchet surface

30‧‧‧ Sleeve fixing device

31‧‧‧ sleeve positioning

311‧‧‧Rotating part

312‧‧‧ pivot

313‧‧‧Installation hole

314‧‧‧Receiving slot

315‧‧‧Connector

32‧‧‧rotating parts

321‧‧‧Rotating disk

322‧‧‧Spin column

323‧‧‧Support hole

33‧‧‧ Directional Support

331‧‧‧ spring sleeve

3311‧‧‧Spring slot

3312‧‧‧Capacitor

332‧‧‧rolling ball

333‧‧‧Spring

334‧‧‧Abutment

335‧‧‧ abut sleeve

3351‧‧‧Container

3352‧‧‧ abuts the bead groove

336‧‧‧Abuts the ball

34‧‧‧ Pawl Block

341‧‧‧tooth surface

342‧‧‧Positioning slot

FIG. 1 is an exploded view of a first preferred embodiment of the present invention.

FIG. 2 is an exploded view of a sleeve fixing device according to a first preferred embodiment of the present invention.

FIG. 3 is an exploded view of the rotating member and the reversing support member according to the first preferred embodiment of the present invention.

FIG. 4 is a diagram showing a state of use in which the first preferred embodiment of the present invention is rotated clockwise.

FIG. 5 is a diagram showing a state of use in which the first preferred embodiment of the present invention is rotated counterclockwise.

Fig. 6 is a sectional front view of a second preferred embodiment of the present invention.

In order to understand the technical features and practical effects of the present invention in detail, and can be implemented according to the content of the invention, the preferred embodiment shown in the drawings is further described in detail as follows: A first preferred embodiment of a ratchet assembly with a rollable support structure provided by the present invention is shown in FIGS. 1 and 2. The ratchet assembly includes a housing 10, a ratchet member 20, and a sleeve fixing device 30. Wherein, as shown in FIG. 1, the shell 10 is hollow and a fixed space 11 is formed inside the shell 10. A cover 12 is provided on the top of the shell 10. The front and rear sides of the shell 10 are respectively provided with openings 13. The two openings 13 communicate with the fixed space 11.

As shown in FIGS. 1 and 2, the ratchet member 20 is correspondingly disposed in the fixed space 11 of the casing 10, and an inner ring peripheral surface of the ratchet member 20 is formed with a surrounding ratchet surface 21.

As shown in FIG. 1 to FIG. 3, the sleeve fixing device 30 passes through the casing 10 horizontally and is correspondingly clamped to the ratchet member 20. The sleeve fixing device 30 includes a sleeve positioning member 31, a rotating member 32, and a direction changer. The support member 33 and a pawl block 34 are disposed in the fixing space 11 of the casing 10. The sleeve positioning member 31 includes a rotating portion 311 and a pivot rod 312. The rotating portion 311 is a A cylindrical body having a class shape, a mounting hole 313 is recessed in the center of a side surface of the rotating portion 311, and a semicircular receiving groove 314 extending in the axial direction is formed on the outer circumferential surface of the rotating portion 311. A connecting port 315 is formed between the accommodation groove 314 and the mounting hole 313. The rotating portion 311 is different from the side where the mounting hole 313 is provided. A sleeve positioning portion 316 is axially protruding. The rod 312 is inserted into the receiving groove 314 of the rotating portion 311.

The rotating member 32 passes through the mounting hole 313 of the rotating portion 311, and includes a rotating disk 321 and a rotating column 322. The rotating disk 321 is rotatably abutted against an end surface of the rotating portion 311. 322 is integrally connected to one side of the rotating plate 321. The rotating column 322 is a hollow cylinder. A peripheral surface of the outer ring of the rotating column 322 is provided with a support receiving hole 323 radially.

The reversing support member 33 passes through the support member receiving hole 323 of the rotating member 32 and passes through the connection opening 315 of the rotating portion 311. The reversing support member 33 includes an elastic sleeve 331, a rolling ball 332, A spring 333 and an abutting member 334. The elastic sleeve 331 is a cylindrical cylinder. One end of the elastic sleeve 331 is recessed with a spring groove 3311. The elastic sleeve 331 is different from the spring. One end of the groove 3311 forms a volume Bead groove 3312, the elastic sleeve 331 is provided with a support receiving hole 323 provided at one end of the bead groove 3312 through the rotating post 322, and the rolling ball 332 is rotatably provided on the elastic sleeve In the bead groove 3312 of the cylinder 331, and the rolling ball 332 is shown with only one end protruding, the spring 333 is disposed in the spring groove 3311 of the elastic sleeve 331, and one end of the spring 333 abuts In the elastic sleeve 331, the abutting member 334 extends into the spring groove 3311 of the elastic sleeve 331 and is sleeved on the spring 333. In the first preferred embodiment, the abutting member 334 includes a The abutting sleeve 335 and an abutting ball 336 are cylindrical cylinders. One end of the abutting sleeve 335 is concavely formed with a receiving groove 3351 so that the other end of the spring 333 The abutting sleeve 335 extends into and abuts the receiving groove 3351 of the abutting sleeve 335, and an end of the abutting sleeve 335 different from the receiving groove 3351 is recessed to form a abutting ball groove 3352. The abutting ball groove 3352 of the abutting sleeve 335 is rotatably provided, and the abutting ball 336 assumes a state protruding with only one end, so that the abutting ball 336 Abutting on the mounting hole 313 of the sleeve positioning member 31 in a rotatable manner.

The pawl block 34 is correspondingly disposed in the accommodating slot 314, and is pivotably mounted on the pivoting rod 312. The pawl block 34 is an elongated block, and is formed at the upper and lower ends respectively. A tooth surface 341 corresponding to the ratchet tooth surface 21 of the ratchet member 20, and the inner side surface of the pawl block 34 is formed with a wavy shape with three concave arc-shaped positioning grooves 342. The reversing support member 33 is formed by the The rolling ball 332 elastically corresponds to one of the positioning grooves 342 that are locked in the pawl block 34. The design of the positioning groove 342 can make the inner side of the pawl block 34 and the rolling ball 332 more stable to each other. system.

As shown in FIG. 4, when the present invention is used in operation, the reversing support 33 of the sleeve fixing device 30 abuts on one of the positioning grooves 342 inside the pawl block 34, so that the pawl block 34 pivots and swings, and Make the pawl block 34 engage one of the tooth surfaces 341 on the ratchet surface 21 of the ratchet member 20 correspondingly. Taking clockwise rotation as an example, the upper tooth surface 341 of the ratchet block 34 abuts against the ratchet member 20. The ratchet surface 21, when the sleeve positioning member 31 rotates clockwise, the abutting ball 336 of the abutting member 334 is rotated by the force, and the design of the abutting ball 336 and the abutting sleeve 335 So that one end of the spring 333 does not rotate The contact with the mounting hole 313 of the sleeve positioning member 31 is directly abutted, and the service life of the spring 333 is improved.

As shown in FIG. 5, the reversing support member 33 is rotated through the rotating member 32 to be closer to the lower portion of the pawl block 34, so that the tooth surface 341 at the lower end of the pawl block 34 abuts against the ratchet of the ratchet member 20. The tooth surface 21 can fix the sleeve positioning member 31 in a counterclockwise direction to generate a clamping force.

According to the present invention, the design of the abutting member 334 makes the abutting ball 336 of the abutting member 334 rotatably abut against the mounting hole 313 of the sleeve positioning member 31, which can reduce one end of the spring 333 to directly abut against The mounting hole 312 of the sleeve positioning member 31 further improves the service life of the spring 333.

As shown in FIG. 6, the second preferred embodiment of the present invention has a structural design that is substantially the same as the first preferred embodiment described above. The difference in this embodiment is that the abutting member 334A is cylindrical. One end of the abutting member 334A is recessed to form a receiving groove 3341A, so that the other end of the spring 333 extends into and abuts the receiving groove 3341A of the abutting member 334A. The abutting member 334A is different from One end of the receiving groove 3341A is convexly formed with an abutting flange 3342A, and the abutting flange 3342A has a semi-spherical shape. The abutting flange 3342A abuts the mounting hole 313 of the sleeve positioning member 31. The operation process and effect of the second preferred embodiment of the present invention are the same as those of the first preferred embodiment, and details are not described herein again.

Claims (5)

A ratchet assembly with a rollable support structure includes a shell, the shell is hollow, and a fixed space is formed in the shell. Two opposite sides of the shell are respectively provided with openings, and the two openings are connected to the fixed space. A ratchet member, which is correspondingly disposed in a fixed space of the housing, and an inner ring peripheral surface of the ratchet member is formed with a surrounding ratchet surface; and a sleeve fixing device, the sleeve fixing device is horizontal The casing is grounded and correspondingly clamped to the ratchet member, and includes a sleeve positioning member, a rotating member, a reversing support member and a pawl block. The sleeve positioning member is disposed in a fixed space of the casing. And one end protrudes from the opening of the casing, the sleeve positioning member includes a rotating part, a mounting hole is recessed in the center of one side of the rotating part, the rotating part is rotatably penetrated through the rotating part, and the direction is changed The support member passes through the rotating member and includes a spring sleeve, a rolling ball, a spring, and an abutting member. The rolling ball is rotatably disposed at one end of the spring sleeve, and the spring is provided. Different from One end of the rolling ball, the abutting member is provided with two ends, one end of the abutting member extends into one end of the spring sleeve provided with a spring, and is sleeved on the spring, and the other end of the abutting member The pawl block abuts on the wall surface of the mounting hole of the sleeve positioning member in an arc shape, the pawl block is pivotally mounted on the sleeve positioning member, and is locked to the rolling ball of the reversing support member with the inside, and the pawl One end of the block is correspondingly locked on the ratchet tooth surface of the ratchet member. The ratchet assembly with a rollable support structure according to claim 1, wherein the abutting member includes an abutting sleeve and an abutting ball, and one end of the spring extends into and abuts the abutting sleeve. The abutting ball is rotatably disposed on the abutting sleeve, and the abutting ball is rotatably abutting on the mounting hole of the sleeve positioning member. The ratchet assembly with a rollable support structure according to claim 2, wherein one end of the abutting sleeve is recessed to form a receiving groove, and one end of the spring extends into and abuts the receiving groove of the abutting sleeve. An end of the abutting sleeve different from the receiving groove is concavely formed with an abutting ball groove, and the abutting ball is rotatably provided in the abutting ball groove of the abutting sleeve. The ratchet assembly with a rollable support structure according to claim 1, wherein the abutting member is a cylindrical cylinder, one end of the abutting member is recessed to form a receiving groove, and one end of the spring extends into and abuts An abutting flange is formed on an end of the abutting member which is different from the abutting groove, and the abutting flange abuts the mounting hole of the sleeve positioning member. The ratchet assembly with a rollable support structure according to any one of claims 1 to 4, wherein the inner side of the pawl block is formed into a wavy shape with three concave arc-shaped positioning grooves, and the reversing support member is Corresponding to one of the positioning grooves of the pawl block.