TW201819115A - Hand tool with dustproof structure capable of preventing oil dirt and dust from penetrating into the first chamber - Google Patents

Abstract

A hand tool having a dustproof structure includes a body, a first chamber is formed in the body, and a ring groove is concavely formed on the inner wall of the first chamber. The first chamber is also provided with a rotating unit, the rotating unit is provided with a second pivot portion corresponding to the ring groove, and a dustproof unit is provided in the ring groove. The dustproof unit has at least two rigid gasket rings, and a soft gasket ring is also sandwiched between the rigid gasket rings, at the same time, a press-fitting member is further included. The press-fitting member is configured to cover the outer side of the dustproof unit, and the dustproof unit can be pressed to make the soft gasket ring oppressed to be radially extended and deformed, and stopped at a position between the outer ring wall of the second pivot portion and the inner ring wall of the ring groove, thereby achieving the purpose of preventing oil dirt and dust from penetrating into the first chamber.

Description

Hand tool with dustproof structure

The present invention relates to a hand tool structure, and more particularly to a hand tool having a dustproof structure.

Referring to FIG. 1 , a general hand tool, such as a ratchet wrench, generally has a body 1 , and one side of the body 1 defines a chamber 2 , and the chamber 2 can accommodate a ratchet The driving unit 3 is composed of a structure, a ratchet block, an elastic abutting member and a dial, and the conventional hand tool further includes a cover 4 which is disposed outside the chamber 2 And the cover plate 4 is provided with a through hole 5 corresponding to the ratchet member of the drive unit 3, and the drive unit 3 is damaged in order to prevent external oil and dust from entering the chamber 2. The conventional hand tool system A shoulder portion 6 is disposed on the inner wall surface of the chamber 2, and a gasket 7 is disposed between the shoulder portion 6 and the cover plate 4, and a ring groove 8 is disposed at an inner edge of the through hole 5, and A seal ring 9 is disposed in the ring groove 8 to block the seal ring 9 between the ratchet member of the drive unit 3 and the inner wall of the ring groove 8.

However, in order to achieve the effect of preventing external oil and dust from entering the chamber 2, the above-mentioned hand tool not only needs to additionally increase the structure of the spacer 7, the ring groove 8 and the sealing ring 9, and the user does not easily The gasket 7 is positioned on the shoulder portion 6, and the sealing ring 9 is not easily fitted into the ring groove 8, which has the disadvantage of being difficult to assemble. In particular, the sealing ring 9 is directly disposed in the ring groove 8, and there is no The pressing action does not ensure that the sealing ring 9 completely blocks the ratchet member of the driving unit 3 and the inner wall of the ring groove 8, and further, if there is manufacturing tolerance between the ring groove 8 and the sealing ring 9, It is easy to cause the sealing ring 9 to fall off and lose the dustproof function. Therefore, after observing the above disadvantages, the inventor of the present invention believes that it is necessary to develop a hand tool which is simple in structure, easy to assemble, and has good dustproof effect. The present invention has been produced.

SUMMARY OF THE INVENTION An object of the present invention is to provide a hand tool having a dustproof structure which has a simple structure, is easy to assemble, and has a good dustproof effect.

In order to achieve the above object, a hand tool having a dustproof structure according to the present invention includes: a body having a first chamber therein, and a second chamber communicating with the first chamber And one side of the body is provided with an opening communicating with the first chamber, and a ring groove is further looped at the intersection of the inner wall of the first chamber and the opening, the ring groove system An inner ring wall and a bottom wall laterally connected between the inner ring wall and the inner wall of the first chamber, and the other side of the body is provided with one of the first chambers communicating with the first chamber a perforation, and a second perforation communicating with the second chamber; and a rotating unit disposed in the first chamber, and the opposite side of the rotating unit is respectively convexly provided with a first pivot portion and a second pivot portion, wherein the first pivot portion is pivotally disposed on the first through hole, so that the rotating unit can rotate relative to the main body with the central axis of the first through hole, and the second pivot portion An inner ring wall is disposed on the inner ring wall, and a first tilting portion is further disposed on the ring side of the rotating unit; And a control unit, which is disposed in the second chamber and has a swaying member, one side of the swaying member is provided with a second swaying portion, and the second swaying portion is attached to the first a swaying portion, and the other side of the swaying member is provided with an abutting surface, and the control unit further has a lever, the lever is disposed on the second through hole, and the lever is provided with a An elastic abutting member, the free end of the elastic abutting member elastically abuts against the abutting surface of the swaying member; and a dustproof unit disposed in the ring groove around the second pivot portion and having at least a second hard gasket ring, and a soft gasket ring is interposed between the hard sheet rings; and a pressing member is disposed at the opening, and the dustproof gasket is pressed toward the bottom wall. The soft gasket ring is radially deformed by the clamping of the hard gasket ring, so that the inner edge of the soft gasket ring is abutted against the outer wall of the second pivot portion, and the The outer edge of the soft gasket ring will abut against the inner ring wall of the annular groove, and the pressing member is more corresponding to the second pivot portion.

The hand tool with the dustproof structure provided by the present invention only needs to be inserted into the ring groove by the hard gasket ring of the dustproof unit and the soft gasket ring, and then the pressing member is fixed to the opening. At the same time as the assembly of the pressure fitting is completed, the soft gasket ring is deformed to block between the outer wall of the second pivot portion and the inner annular wall of the annular groove, so that the present invention not only It can achieve the purpose of sealing and dustproof, and has the advantages of simple structure and convenient assembly.

2, 3, 4, and 5, which are perspective, exploded, and cross-sectional views of a preferred embodiment of the present invention, showing a hand tool having a dustproof structure, the hand Tool 100 includes:

a body 10 is provided with a first chamber 11 and a second chamber 12 communicating with the first chamber 11, and one side of the body 10 is threaded with the first chamber 11 is connected to one of the openings 13 and is provided with a ring groove 14 at the intersection of the inner wall 111 of the first chamber 11 and the opening 13 . The ring groove 14 has an inner ring wall 141 and is laterally connected thereto. a bottom wall 142 between the inner ring wall 141 and the inner wall 111 of the first chamber 11 , and the body 10 further defines a recess 15 between the opening 13 of the first chamber 11 and the ring groove 14 . And the other side of the body 10 is provided with a first through hole 16 communicating with the first chamber 11 and a second through hole 17 communicating with the second chamber 12, and the first side The inner wall of the perforation 16 is provided with a first groove 161 in a ring.

a rotating unit 20 is disposed in the first chamber 11 , and a second pivot portion 21 and a second pivot portion 22 are respectively protruded from opposite sides of the rotating unit 20 , wherein the first pivot portion The portion 21 is pivotally disposed on the first through hole 16 such that the rotating unit 20 can be pivoted about the central axis of the first through hole 16 and rotate relative to the body 10, and the second pivot portion 22 corresponds to the inner ring wall 141. There is an outer ring wall 221 at the same time, and a first swaying portion 23 is disposed on the periphery of the rotating unit 20.

A control unit 30 is disposed in the second chamber 12 and has a swaying member 31 and a lever 32. One side of the swaying member 31 is provided with a second swaying portion 311. The second swaying portion 311 is engaged with the first swaying portion 23, and the other side of the swaying member 31 is provided with an abutting surface 312, and the lever 32 is inserted into the second through hole 17 The lever 32 is provided with a resilient abutting member 33. The free end of the resilient abutting member 33 is elastically abutted against the abutting surface 312 of the tilting member 31. In this embodiment, the dialing The rod 32 is provided with a receiving hole 321 , and the elastic abutting member 33 has a spring 331 and an abutting pin 332 which are sequentially received in the receiving hole 321 , and the outer peripheral wall of the lever is further looped. A second recess 322 is provided, and the user can swing the clockwise or counterclockwise direction of the lever 32 to cause the elastic abutting member 33 mounted on the receiving hole 321 to move the ratchet of the rotating unit 20 To determine the direction of rotation of the rotating unit 20, in the present embodiment, the rotating unit 20 can be a ratchet head.

A dustproof unit 40 is disposed around the second pivot portion 22 and is disposed in the annular groove 14 and has at least two rigid gasket rings 41 and a soft gasket ring 42. The soft gasket ring 42 is sandwiched between Between the hard gasket rings 41, the height of the hard gasket ring 41 of the dustproof unit 40 and the soft gasket ring 42 is greater than the height of the inner ring wall 141 of the annular groove 14, and the hard gasket The ring 41 can be made of a metal material, and the soft gasket ring 42 can be a rubber material. The dustproof unit 40 further includes a first sealing ring 43. The first sealing ring 43 is looped on the first Between the recess 161 and the first pivot portion 21 of the rotating unit 20, the dustproof unit 40 further includes a second sealing ring 44, and the second sealing ring 44 is disposed on the second recess 322 and the second Between the inner walls of the perforations 17.

a pressing member 50 is disposed at the opening 13 and the dustproof unit 40 is pressed by the opening 13 toward the bottom wall 142 to receive the soft gasket ring 42 from the hard gasket ring 41. The inner edge of the ring of the soft gasket 42 is closely adhered to the outer wall 221 of the second pivot portion 22, and the outer edge of the soft gasket ring 42 is closely attached. In the inner ring wall 141 of the annular groove 14, the pressing member 50 is further provided with a matching hole 51 corresponding to the second pivot portion 22. In the embodiment, the pressing member 50 is a C-shaped buckle, and The outer edge of the pressing member 50 is fitted to the recessed groove 15 such that the upper edge of the pressing member 50 is pressed against the hard spacer ring 41, and the pressing member 50 can be fixed adjacent to the opening 13 .

For a further understanding of the structural features of the present invention, the application of the technical means, and the intended effect, the manner of use of the present invention will be described. It is believed that the present invention may be more deeply and specifically understood as follows:

Please refer to FIG. 6 and FIG. 7 for a schematic diagram of the use of the preferred embodiment of the present invention. When assembling the hand tool, the rotating unit 20 and the control unit 30 are first loaded into the body 10 in sequence. The first chamber 11 and the second chamber 12, and then the hard spacer ring 41 of the dustproof unit 40 and the soft spacer ring 42 are interleaved into the annular groove 14, and then the pressing member 50 is The outer edge is fitted to the recess 15 to be fixed to the opening 13 to complete the assembly of the hand tool 100. The hard spacer ring 41 and the soft spacer ring 42 of the dustproof unit 40 are defined. The height h1 is superimposed, and the inner ring wall 141 of the annular groove 14 defines an accommodating height h2 from the opening 13 toward the bottom wall 142. Therefore, as shown in FIG. 6, the user has not pressed the inner ring. When the fitting 50 is fitted into the recessed groove 14, the superimposed height h1 is greater than the accommodating height h2, so that when the pressing member 50 is fitted to the fitting groove 15, the pressing is performed as shown in FIG. The member 50 will press the dustproof unit 40 toward the bottom wall 142, so that the soft gasket ring 42 is radially deformed by the clamping of the hard gasket ring 41. The inner edge of the ring of the soft gasket 42 is closely adhered to the outer wall 221 of the second pivot portion 22, and the outer edge of the soft gasket ring 42 is closely attached to the annular groove 14. The ring wall 141 can achieve the effect of preventing oil or dust from penetrating into the first chamber 11, thereby making the hand tool 100 having the dustproof structure of the present invention only by the hard pad of the dustproof unit 40. The ring 41 is inserted into the ring groove 14 in a staggered manner, and the outer edge of the pressing member 50 is fitted into the groove 15 to be fixed to the opening 13 to complete the pressure. When the assembly 50 is assembled, the soft spacer ring 42 is deformed to block between the outer ring wall 221 of the second pivot portion 22 and the inner ring wall 141 of the annular groove 14, so that the present invention can not only achieve It is sealed and dustproof, and has the advantages of simple structure and convenient assembly.

Please refer to FIG. 8 and FIG. 9 again, which are partial enlarged views of the first sealing ring and the second sealing ring according to the preferred embodiment of the present invention, wherein, as shown in FIG. 8, the body 10 is The inner wall of the first through hole 16 is further provided with the first groove 161, and the dustproof unit 40 further includes the first sealing ring 43 surrounding the first pivot portion 21 and The ring is disposed in the first groove 161, and the outer periphery of the first sealing ring 43 is in contact with the groove wall of the first groove 161, and the inner circumference of the first sealing ring 43 is in contact with the first groove The ring wall of the pivot portion 21, as shown in FIG. 9, the outer peripheral wall of the lever 32 is fitted with a second groove 322, and the dustproof unit 40 includes the second sealing ring 44. The second sealing ring 44 is located between the second recess 322 and the inner wall of the second through hole 17, and the second sealing ring 44 is looped in the second recess 322 to make the second seal The outer periphery of the ring 44 is in contact with the inner wall of the second through hole 17, and the inner periphery of the second sealing ring 44 is in contact with the groove wall of the second groove 322, thereby being permeable to the first dense The sealing ring 43 is sealed between the first groove 161 and the first pivot portion 21 to prevent external oil or dust from entering the first chamber 11 from the first through hole 16 and through the second sealing ring 44. Blocking between the second recess 322 and the inner wall of the second through hole 17 to prevent external oil or dust from entering the second chamber 12 from the second through hole 17, thereby further improving the dustproofness of the hand tool 100 effect.

Hereafter, the features of the present invention and its achievable efficacy are stated as follows:

In the hand tool 100 with the dustproof structure provided by the present invention, the user only needs to insert the hard spacer ring 41 of the dustproof unit 40 and the soft gasket ring 42 into the annular groove 14, and then press the pressure. The outer edge of the member 50 is fitted to the recess 15 to be fixed to the opening 13 , and the soft gasket ring 42 is deformed to block the second pivot while the assembly of the pressing member 50 is completed. The outer ring wall 221 of the portion 22 is spaced between the inner ring wall 221 of the annular groove 14, so that the present invention can not only achieve the purpose of sealing and dustproof, but also has the advantages of simple structure and convenient assembly.

In summary, the present invention has excellent advancement and practicability in similar products, and at the same time, the technical materials of such structures are frequently investigated at home and abroad, and the same structure is not found in the literature. The invention already has the invention patent requirements, and the application is filed according to law.

However, the above-mentioned ones are merely preferred embodiments of the present invention, and the equivalent structural changes of the present invention and the scope of the claims are intended to be included in the scope of the present invention.

[study]
1‧‧‧ Ontology
2‧‧‧ chamber
3‧‧‧Drive unit
4‧‧‧ Cover
5‧‧‧Perforation
6‧‧‧ Shoulder
7‧‧‧shims
8‧‧‧ Ring groove
9‧‧‧ Sealing ring [present invention]
100‧‧‧Hand tools
10‧‧‧ Ontology
11‧‧‧ first chamber
111‧‧‧ inner wall
12‧‧‧Second chamber
13‧‧‧ openings
14‧‧‧ Ring groove
141‧‧ ‧ inner ring wall
142‧‧‧ bottom wall
15‧‧‧Inlay
16‧‧‧First perforation
161‧‧‧first groove
17‧‧‧Second perforation
20‧‧‧Rotating unit
21‧‧‧ First pivot
22‧‧‧Second pivot
221 ‧‧‧ outer ring wall
23‧‧‧First Ministry of Movement
30‧‧‧Control unit
31‧‧‧掣动
311‧‧‧Second Ministry of Movement
312‧‧‧The top surface
32‧‧‧Pole
321‧‧‧ accommodating holes
322‧‧‧second groove
33‧‧‧Flexible abutting parts
331‧‧‧ Spring
332‧‧‧Remove the pin
40‧‧‧Dust unit
41‧‧‧Rigid gasket ring
42‧‧‧Soft gasket ring
43‧‧‧First seal ring
44‧‧‧Second seal ring
50‧‧‧ Pressing parts
51‧‧‧through holes
H1‧‧‧ superimposed height
H2‧‧‧ accommodating height

Figure 1 is a perspective view of a conventional hand tool. Figure 2 is a perspective view of a preferred embodiment of the present invention. Figure 3 is an exploded view of a preferred embodiment of the present invention. Figure 4 is a cross-sectional view of a preferred embodiment of the present invention. Figure 5 is a cross-sectional view of another preferred embodiment of the present invention. Figure 6 is a schematic view showing the use of the preferred embodiment of the present invention to show the state when the press-fit member is not loaded. Figure 7 is a schematic view showing the use of the preferred embodiment of the present invention to show the state after the press fitting is loaded. Figure 8 is a partial enlarged view of the first seal ring of the preferred embodiment of the present invention. Figure 9 is a partially enlarged view of the second seal ring of the preferred embodiment of the present invention.

Claims (10)

A hand tool having a dustproof structure, comprising: a body having a first chamber therein; and a second chamber communicating with the first chamber, and one side of the body is threaded Providing an opening in communication with the first chamber, and a ring groove is disposed at an intersection of the inner wall of the first chamber and the opening, the ring groove has an inner ring wall and is laterally connected thereto a bottom wall between the inner ring wall and the inner wall of the first chamber, and the other side of the body is threaded with a first perforation communicating with the first chamber, and connected to the second chamber a second through hole; a rotating unit is disposed in the first chamber, and a second pivot portion and a second pivot portion are respectively protruded from opposite sides of the rotating unit, wherein the first The pivoting portion is pivotally disposed on the first through hole, and the rotating unit is pivoted with respect to the central axis of the first through hole, and the second pivot portion has an outer ring wall corresponding to the inner ring wall. a rotating portion of the rotating unit is provided with a first tilting portion; a control unit is disposed in the second chamber and has a swaying member and a lever, wherein one side of the swaying member is provided with a second swaying portion, the second swaying portion is engaged with the first swaying portion, and the swaying member is another The side is provided with an abutting top surface, the lever is inserted into the second through hole, and the lever is provided with an elastic abutting member, and the free end of the elastic abutting member is elastically abutted against the tilting member The dustproof unit is disposed around the second pivot portion and is disposed in the annular groove, and has at least two rigid gasket rings and a soft gasket ring, and the soft gasket ring is disposed Between the hard gasket rings; a pressing member disposed at the opening, and the dustproof unit is pressed by the opening toward the bottom wall, so that the soft gasket ring receives the hard gasket The ring is forced to extend radially and deforms, so that the inner edge of the soft gasket ring closely abuts the outer wall of the second pivot portion, and the outer edge of the soft gasket ring is closely attached to the ring The inner wall of the annular groove, and the pressing member is more corresponding to the second pivot portion. The hand tool of the dustproof structure according to the first aspect of the invention, wherein the body is provided with a recess in the opening of the first chamber and the ring of the ring groove, and the outer edge of the pressing member is Engaging in the recessed groove such that the upper edge of the pressing member presses against the hard spacer ring, and the pressing member can be fixed adjacent to the opening. A hand tool having a dustproof structure according to claim 2, wherein the inner ring wall of the ring groove defines a receiving height from the opening toward the bottom wall, and the hard gasket ring of the dustproof unit The superimposed height of the soft shim ring is greater than the accommodating height, and when the pressing member is fitted into the recessed groove, the dustproof unit is pressed toward the bottom wall. The hand tool with a dustproof structure according to any one of the items 1 to 3, wherein the pressing member is a C-shaped buckle, the hard gasket ring is made of a metal material, and the soft gasket The ring is made of rubber. The hand tool of the dustproof structure of claim 1, wherein the body is provided with a first groove on the inner wall of the first perforation, and the dustproof unit further comprises a first sealing ring. The first sealing ring surrounds the first pivot portion and is disposed in the first groove. The outer periphery of the first sealing ring is in contact with the groove wall of the first groove, and the inner circumference of the first sealing ring is Resisting the wall of the first pivot. The hand tool of the dustproof structure of claim 1, wherein the outer peripheral wall of the lever is provided with a second groove in a ring, and the dustproof unit further comprises a second sealing ring. a second sealing ring is located between the second groove and the inner wall of the second perforation, and the second sealing ring is disposed in the second groove, and the outer periphery of the second sealing ring is in contact with the second The inner wall of the perforation, the inner circumference of the second sealing ring is in contact with the groove wall of the second groove. A hand tool having a dustproof structure, comprising: a body, wherein the body is provided with a first chamber, and one side of the body is provided with an opening communicating with the first chamber, and the first The inside of the chamber is provided with a rotating unit, and the rotating unit has a second pivot portion protruding outwardly from the opening, the second pivot portion has an outer ring wall, and the rotating unit is connected with a control unit for control The rotation direction of the rotating unit, and the opening is further provided with a pressing member, the pressing member is provided with a matching hole corresponding to the second pivot portion, and the main feature is: the body is in the first chamber The inner wall is provided with a ring groove corresponding to the second pivot portion, and the ring groove has an inner ring wall disposed opposite to the outer ring wall, and is laterally connected to the inner ring wall and the first chamber a bottom wall of the inner wall; a dustproof unit surrounding the outer wall of the second pivot portion and mounted in the annular groove, and having at least two rigid gasket rings and a soft gasket ring, and the a soft gasket ring is interposed between the hard sheet rings; the pressing member is disposed at the At the mouth, the dustproof unit is pressed by the opening toward the bottom wall, so that the soft gasket ring is radially deformed by the clamping of the hard gasket ring, thereby allowing the soft gasket ring to be inside The edge is closely attached to the outer ring wall of the second pivot portion, and the outer edge of the soft gasket ring is closely attached to the inner ring wall of the annular groove. The hand tool of the dustproof structure according to the seventh aspect of the invention, wherein the body is provided with a groove in the opening of the first chamber and the ring of the ring groove, and the outer edge of the pressing member is Engaging in the recessed groove such that the upper edge of the pressing member presses against the hard spacer ring, and the pressing member can be fixed adjacent to the opening. A hand tool having a dustproof structure according to claim 8, wherein the bottom wall of the ring groove defines an accommodating height from a direction of the opening toward the inner ring wall, and the hard gasket ring of the dustproof unit The superimposed height of the soft shim ring is greater than the accommodating height, and when the pressing member is fitted into the recessed groove, the dustproof unit is pressed toward the inner ring wall. The hand tool with a dustproof structure according to any one of the items 7 to 9, wherein the pressing member is a C-shaped buckle, the hard gasket ring is made of a metal material, and the soft gasket The ring is made of rubber.