TW201728414A - Dustproof ratchet wrench structure (II) capable of preventing the dust or water from entering the ratchet body to make the torque head rotate more smoothly, thereby greatly enhancing the torque value - Google Patents

Abstract

This invention discloses a dustproof ratchet wrench structure (II), at least comprising a ratchet body, a torque head, a detent member, a toggle button, an elastic coupling member set, an abutting member set, a seal ring, a buckling ring member and a cover plate, wherein the buckling ring member is simultaneously assembled in an external ring groove of the cover plate and an internal ring groove of the ratchet body, so that the torque head, the detent member, the toggle button, the elastic coupling member set and the abutting member set can be located between each of a first accommodating part and a second accommodating part of the ratchet body and the inner wall surface of the cover plate, a toggle part of the toggle button can be located at the outer side of a axle hole of the ratchet body, and the seal ring is clamped and assembled between the toggle button and the axle hole of the ratchet body.

Description

Dust ratchet wrench construction (2)

The present invention relates to a dust-proof ratchet wrench structure; in particular, to a relative close contact between a dial button and a shaft hole of a ratchet body, in particular, a dial portion or a shaft that is clamped to a toggle button by a leak stop ring The body is between the outer wall surface of the ratchet wheel or the shaft hole to prevent the sand dust or water stain from entering the gap between the dial button and the shaft hole of the ratchet body to the torsion head which is located in the first and second receiving portions of the ratchet body The tooth portion and the tooth portion of the swaying member have a guiding force to reduce the sway when the torque head rotates, and greatly improve the meshing degree between the tooth portion of the torque head and the tooth portion of the swaying member, thereby making the torque head The rotation is smoother, which in turn greatly increases the torque value.

Please refer to the "Sealed reversible ratchet wrench" patent of U.S. Patent No. 5,921,158, wherein the end of the wrench is provided with a through hole having a plurality of teeth, and a gear having a square head is pivoted on the first side of the head end, and The gear is internally provided with a pawl capable of engaging a plurality of teeth of the through hole, and the second surface of the head end is provided with a direction button, and the gear and the direction button are screwed to the head end through a bolt.

In order to allow the gear to rotate smoothly, a gap is maintained between the through hole of the head end and the outer surface of the gear, and the gap is an important path for dust to enter the inside of the head end from the first side of the head end of the wrench, and the dust passes through When the gap enters between the tooth and the pawl attached to the through hole, the degree of meshing of the wrench during the operation rotation is not good, and the rotation is not smooth, and even This can cause a missing tooth or a lack of torque.

In the patent of U.S. Patent No. 5,921,158, the design for preventing dust from entering the head end from below the head end can be seen. The main purpose is to use a sealing ring having two lips between the head end and the gear. One of the two lips of the seal ring contacts the first face that is horizontal at the head end, and the other lip contacts the shoulder that is horizontal to the gear. This design allows dust to be from the first side of the head end. After entering the lower side of the sealing ring through the gap, if the lip below the sealing ring is taken along the horizontal direction, there is no other design that hinders the entry of dust into the head end, so the dustproof effect is not significantly improved, and there is still room for improvement.

In view of the above, the present inventors actively developed research, and in order to improve the lack of the above-described conventional ratchet wrench structure, the inventors have been engaged in the manufacture of such products for many years of experience, and after long-term efforts and experiments, finally developed and designed the present invention. The dust-proof ratchet wrench construction (2) can benefit all consumers and manufacturers.

The main content of the dust-proof ratchet wrench structure (2) of the present invention is to provide a buckle member that is simultaneously assembled in the outer ring groove of the cover sheet and the inner ring groove of the ratchet body, so that the torsion head and the tilting member , the toggle button, the elastic linkage member group, and the abutting member group can be located between the ratchet body and the cover sheet, and the dialing portion of the toggle button can be located outside the shaft hole of the ratchet body, and the dial button is The clamping group between the shaft hole of the ratchet body is provided with a leakage preventing ring, and the leakage preventing ring is clamped between the dialing portion or the shaft portion of the toggle button to the outer wall surface or the shaft hole of the ratchet body, so that Not only can prevent sand dust or water stain from entering the gap between the toggle button and the shaft hole of the ratchet body to the tooth portion of the torsion head and the tooth portion of the tilting member which are located in the first and second receiving portions of the ratchet body, The torsion head has the guiding force and the shaking degree when rotating, and greatly improves the tooth portion of the torsion head and the tooth portion of the tilting member. In addition to the degree of meshing, at the same time, it can make the torsion head smoother when rotating, without the problem of collapsing teeth, and thus greatly improve the torque value that can withstand the basis of its progress.

1‧‧‧ratchet body

10‧‧‧First Housing Department

11‧‧‧Second Accommodation Department

12‧‧‧Axis hole

13‧‧‧Restricted holes

14‧‧‧ positioning recess

15‧‧‧ Inner ring groove

2‧‧‧Torque head

20‧‧‧ teeth

21‧‧‧ ring stop

22‧‧‧ Drive Department

3‧‧‧掣动

30‧‧‧ teeth

31‧‧‧Restricted recess

4‧‧‧Turn button

40‧‧‧Driving Department

41‧‧‧Axis body

42‧‧‧Limited

43‧‧‧Concave recess

44‧‧‧Limited slot

5‧‧‧Flexible linkage set

50‧‧‧Shrap

51‧‧‧ spring cap

52‧‧‧ Spring

6‧‧‧After the top group

60‧‧‧ balls

61‧‧‧ Spring

7‧‧‧ Cover

70‧‧‧through hole

71‧‧‧Outer ring groove

72‧‧‧External ring zone

73‧‧‧ Built-in ring zone

80‧‧‧First abutment

85‧‧‧second abutment

88‧‧‧ leaking ring

9‧‧‧ buckle parts

Figure 1 is a schematic exploded cross-sectional view of the present invention.

Figure 2 is a perspective view of the toggle button of the present invention.

Fig. 3 is a combined sectional view of Fig. 1.

Fig. 4 is a cross-sectional view showing another combination of Fig. 1.

Fig. 5 is an enlarged partial cross-sectional view of Fig. 3.

Figure 6 is an enlarged cross-sectional view showing a partial combination of still another embodiment of the present invention.

Figure 7 is an enlarged cross-sectional view showing a partial combination of another embodiment of the present invention.

The present invention relates to a dust-proof ratchet wrench structure (2). Referring to FIGS. 1 to 5, the present invention mainly includes a ratchet body 1 including at least a concave first receiving portion 10. a second receiving portion 11 connected to the first receiving portion 10, a shaft hole 12 communicating with the wall surface of the second receiving portion 11, and a portion adjacent to the lower portion of the concave first receiving portion 10 a positioning recess 14 and an inner ring groove 15 disposed at a side surface of the positioning recess 14; and the shaft hole 12 is a through hole or a stepped through hole (as shown in FIG. 3) In particular, the stepped shaft hole 12 is for receiving the third abutting member 88 such that the third abutting member 88 is sandwiched against the shaft portion 41 of the dial button 4 to the ratchet body 1 Between the shaft holes 12; a torsion head 2, which is received in the first receiving portion 10 of the ratchet body 1 For the inner movement, the torsion head 2 is at least divided into a tooth portion 20 accommodated in the first receiving portion 10, and a ring portion extending downward from the bottom surface of the tooth portion 20 and located at the through hole 70 of the cover sheet 7. a portion 21 and a quadrangular driving portion 22 projecting downwardly from the bottom surface of the ring-stop portion 21 to the outside of the cover sheet 7; a tilting member 3 coupled to the second receiving portion of the ratchet body 1 The movable member 3 is formed by at least a front end surface thereof having a tooth portion 30 engaged with the tooth portion 20 of the torsion head 2, and a rear end surface thereof formed with a resilient linkage member group 5 for abutting. a restricting recess 31; a toggle button 4 having one end passing through the shaft hole 12 and being accommodated in the second receiving portion 11 of the ratchet body 1 and having the other end located outside the ratchet body 1; The toggle button 4 is at least divided into a dial portion 40 for biasing the force, a shaft portion 41 formed by extending downward from one end of the bottom surface of the dial portion 40, and a suitable portion formed at the shaft portion 41, respectively. a limiting portion 42 and a fixed recess 43; an elastic linking member set 5 disposed between the tilting member 3 and the shaft portion 41 of the toggle button 4, so that the elastic linkage member 5 can The rotation of the shaft portion 41 moves the movement of the tilting member 3; one end of the elastic linkage member 5 is received in the limiting portion 42 of the toggle button 4, and the other end thereof is abutted against the The elastic interlocking member set 5 can be a single spring, a single elastic piece 50, or a combination of the spring cap 51 and the spring 52, or a combination of a ball and a spring. An abutting member set 6 is disposed between the dial button 4 and the second receiving portion 11 , wherein the abutting member set 6 is receivable in the limiting hole 13 of the ratchet body 1 ( That is, the limiting hole 13 is formed from the inner wall of the second receiving portion 11 of the ratchet body 1 toward the direction of the handle body. Within the hole (as in Figures 1 and 3), or the abutting member set 6 is received in the recess 43 of the toggle button 4 (as in Figure 6), such that the abutting member set 6 The end is respectively abutted against the inner wall surface of the limiting hole 13 and the recessed portion 43 of the shaft portion 41 of the toggle button 4, so that the moved toggle button 4 is positioned; and the above-mentioned abutting member group 6 is It can be replaced by a single spring, a single elastic piece, or a combination of a spring cap and a spring, or a combination of a ball 60 and a spring 61; a cover piece 7 is assembled to be sealed at the positioning recess 14 of the ratchet body 1 The cover sheet 7 includes at least one through hole 70 for the ring stop portion 21 of the torsion head 2, and an outer ring groove 71 for the insertion of the buckle ring member 9 at the outer wall surface of the cover piece 7. An outer ring portion 72 for the first abutting member 80 to be placed adjacent to the outer ring groove 71, and a second abutting member 85 for the outer ring portion 72 for the inner side of the cover piece 7 The built-in ring region 73, wherein the outer ring region 72 of the cover sheet 7 refers to an open ring groove, or an L-shaped toroidal region opening outward; and the built-in ring region 73 Means a ring groove with an opening facing inward Or an L-shaped toroidal region that is open to the inside; a first abutting member 80 is disposed at the outer ring region 72 of the cover plate 7 so that the first abutting member 80 can They are respectively sandwiched between the outer ring region 72 of the cover sheet 7 and the inner wall surface of the positioning recess 14 of the ratchet body 1; the first abutting member 80 has its own elastic restoring force or pressure. The material that will produce the amount of deformation is optimal, especially replaced by an oil seal, a gasket, etc.; a second abutting member 85 is disposed at the inner ring portion 73 of the cover sheet 7 so that the first The two abutting members 85 can be respectively sandwiched between the inner ring portion 73 of the cover sheet 7 and the outer wall surface of the ring stopper portion 21 of the torsion head 2; the second abutting member 85 has elasticity itself. The material that will produce the amount of deformation after recovery or compression is the best, especially oil. Sealing, gasketing, etc. are replaced; a leak-proof ring 88 is provided to be clamped against the toggle button 4 to the wall surface of the ratchet body 1, in particular, the leak-stop ring 88 is sandwiched between the ratchets The shaft hole 12 of the main body 1 and the dial portion 40 of the dial button 4 or the shaft portion 41 thereof; the leakage ring 88 described above is a material which has an elastic restoring force or a deformation amount after being pressed. Preferably, in particular, it is replaced by an oil seal, a gasket, etc.; a buckle member 9 is disposed in the outer ring groove 71 of the cover piece 7 and the inner ring groove 15 of the ratchet body 1; Preferably, the buckle member 9 is a C-shaped buckle, an E-shaped buckle, or the like; when assembling, the spring 61 and the ball 60 need to be first placed into the restriction hole 13 of the ratchet body 1 in sequence, and then The shaft portion 41 of the toggle button 4 in which the leak stop ring 88 has been inserted is inserted into the second housing portion 11 from the outside of the ratchet body 1 (ie, the leak stop ring 88 is pinched on the shaft of the toggle button 4). The portion 41 is between the shaft-shaped shaft holes 12 of the ratchet body 1 as shown in FIG. 3, and the limiting portion 42 of the dial button 4 can be located in the second receiving portion 11 and then assembled. The elastic joint at the recess 31 of the movable member 3 The component group 5 can be reinserted into the limiting portion 42 from the first accommodating portion 10 via the second accommodating portion 11 (in other words, the two ends of the elastic linking member group 5 are respectively engaged with the swaying member 3 and the limit In the position portion 42 such that the elastic piece 50 of one portion of the elastic linkage member group 5 straddles the lower side of the shaft hole 12, so that the dial button 4 is not pulled out and is disengaged from the ratchet body 1), in this case, only The tooth portion 20 of the torsion head 2 slightly moves the tooth portion 30 of the damper member 3 in the direction of the restriction hole 13 in a slightly oblique pressing manner, and then moves the guide torque head 2 to the first accommodating portion 10. Therefore, the tooth portion 20 of the torsion head 2 can be surely engaged with the tooth portion 30 of the tilting member 3, and the quadrangular driving portion 22 of the torsion head 2 will protrude from the The outer side of the one portion 10; at this time, the through hole 70 of the cover sheet 7 which has been sleeved with the first abutting member 80, the second abutting member 85 and the buckle member 9 can be directly from the four corners of the torsion head 2 The driving portion 22 is nested until the cover sheet 7 is inserted into the positioning recess 14 of the ratchet body 1, and the buckle member 9 can be simultaneously inserted into the inner ring groove 15 and the cover sheet 7 of the ratchet body 1. At the ringing area 72 (as shown in FIG. 3), in other words, the outer ring region 72 of the cover sheet 7 is interposed between the inner recesses 14 of the ratchet body 1 with the first abutting member 80, and the inner ring of the cover sheet 7 The second abutting member 85 is sandwiched between the ring portion 27 of the torsion head 2 (as shown in FIG. 5), and the assembly thereof is completed. With the above configuration, the present invention is simultaneously embedded by the buckle member 9. The inner ring groove 15 and the cover body 7 of the ratchet body 1 are disposed outside the ring portion 72 so that the cover sheet 7 can be assembled and sealed in the positioning recess 14 of the first receiving portion 10 of the ratchet body 1. The torque head 2, the tilting member 3, the toggle button 4, the elastic linkage member set 5, and the abutting member group 6 can be located between the ratchet body 1 and the cover plate 7, and the dialing portion of the toggle button 4 is provided. 40 can be located outside the shaft hole 12 of the ratchet body 1 And the sliding button 88 is sandwiched between the dial button 4 and the shaft hole 12 of the ratchet body 1, and the leak preventing ring 88 is sandwiched between the dial portion 40 of the dial button 4 or the shaft portion 41. It is between the outer wall surface of the ratchet body 1 or the shaft hole 12, so that it can prevent sand dust or water stain from entering the gap between the dial button 4 and the shaft hole 12 of the ratchet body 1 to the first position already located in the ratchet body 1. The tooth portion 20 of the torsion head 2 and the tooth portion 30 of the tilting member 3 in the two receiving portions 10, 11 are such that the torsion head 2 is guided to reduce the shaking degree when rotating, and the torsion head 2 is greatly improved. In addition to the meshing degree between the tooth portion 20 and the tooth portion 30 of the raking member 3, the torque head 2 can be made smoother when rotated, and there is no problem of chipping, thereby greatly improving the tolerance of the torque head 2 Torque value.

Please refer to FIG. 6 , which is a further embodiment of the present invention. The main changes are three: one is the spring cap of the elastic linkage member set 5 in the limiting portion 42 of the toggle button 4 . 51 and the spring 52 are accommodated therein, and the other end of the spring cap 51 is just able to abut against the other side of the swinging member 3: the second recessed portion 43 is disposed on the shaft portion 41 of the toggle button 4 The bottom surface of the second receiving portion 11 is disposed at the bottom surface of the second receiving portion 11 so that the balls 60 and the spring 61 of the abutting member group 6 can be sandwiched against the inner wall surface of the limiting hole 13 and The third recessed slot 44 is disposed at a position of the dialing button 4, and the limiting slot 44 is located at the bottom surface of the dialing portion 40 of the toggle button 4, and the limit is The slot 44 has a circular shape and extends downwardly in the middle of the limiting slot 44 to form a shaft portion 41 (ie, the limiting slot 44 is sleeved outside the diameter of the shaft portion 41), so that the leakage ring 88 can Positioned in the limiting slot 44 along the shaft portion 41; when the shaft portion 41 of the toggle button 4 and the elastic linkage member 5 already located at the tilting member 3 of the ratchet body 1 are embedded in each other When the leakage preventing ring 88 is sandwiched between the limiting groove 44 of the bottom surface of the dialing portion 4 of the toggle button 4 to the outer wall surface of the ratchet body 1 (ie, the outer side of the shaft hole 12); as for the above-mentioned ratchet body 1, the torque head 2, the moving parts 3, dial The structure between the relative positions of the movable button 4, the elastic linkage member group 5, the abutting member group 6, the cover sheet 7, the first abutting member 80, the second abutting member 85, the leakage preventing ring 88, and the buckle member 9, It has been described in detail above, so it will not be described here.

Please refer to FIG. 7 , which is another embodiment of the present invention. The main change is that the toggle button 4 is appropriately provided with a circular limiting slot 44 , and the limiting slot 44 is located on the ring. The shaft portion 41 of the button 4 is such that the leakage preventing ring 88 can be moved up and down along the shaft portion 41 to be positioned in the limiting slot 44; when the shaft portion 41 of the toggle button 4 is already located at the ratchet When the elastic linkage members 5 at the swaying member 3 of the main body 1 are embedded in each other, the leakage preventing ring 88 is clamped to the limiting groove 44 of the shaft portion 41 of the toggle button 4 to the ratchet body 1 Between the shaft holes 12; as for the ratchet body 1, the torsion head 2, the raking member 3, the toggle button 4, and the elastic linkage The structure between the relative positions of the member group 5, the abutting member group 6, the cover sheet 7, the first abutting member 80, the second abutting member 85, the leakage preventing ring 88 and the buckle member 9 has been added in detail in the above contents. Description, so I won't go into details here.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; therefore, the features and spirits described in the scope of the present application are equally varied or modified. Within the scope of the patent application of the present invention.

1‧‧‧ratchet body

10‧‧‧First Housing Department

11‧‧‧Second Accommodation Department

12‧‧‧Axis hole

13‧‧‧Restricted holes

14‧‧‧ positioning recess

15‧‧‧ Inner ring groove

2‧‧‧Torque head

20‧‧‧ teeth

21‧‧‧ ring stop

22‧‧‧ Drive Department

3‧‧‧掣动

30‧‧‧ teeth

31‧‧‧Restricted recess

4‧‧‧Turn button

40‧‧‧Driving Department

41‧‧‧Axis body

42‧‧‧Limited

43‧‧‧Concave recess

5‧‧‧Flexible linkage set

50‧‧‧Shrap

6‧‧‧After the top group

60‧‧‧ balls

61‧‧‧ Spring

7‧‧‧ Cover

70‧‧‧through hole

71‧‧‧Outer ring groove

72‧‧‧External ring zone

73‧‧‧ Built-in ring zone

80‧‧‧First abutment

85‧‧‧second abutment

88‧‧‧ leaking ring

9‧‧‧ buckle parts

Claims (10)

A dust-proof ratchet wrench structure (2), comprising at least: a ratchet body, comprising a first concave portion having a concave shape, a second receiving portion communicating with the first receiving portion, and a communication a shaft hole to the second receiving portion, and a positioning recess adjacent to the first receiving portion; a torsion head configured to be placed in the first receiving portion of the ratchet body, and The device is at least divided into a tooth portion disposed in the first receiving portion and a driving portion protruding downwardly to the outer side of the ratchet body; a tilting member is disposed in the second receiving portion of the ratchet body In the internal movement, the front end surface of the turret is formed with a tooth portion that is engaged with the tooth portion of the torsion head; a toggle button has one end passing through the shaft hole and being received in the second accommodating portion of the ratchet body Movable, and the other end is located outside the ratchet body; the toggle button is at least divided into a toggle portion for biasing, a shaft portion extending downward from one end of the dial portion, and a limiting portion and a recessed portion respectively formed at the shaft portion; an elastic linking member set Between the agitating member and the shaft portion of the toggle button, so that the elastic linkage member can move the tilting member to move along with the rotation of the shaft portion; a cover plate is disposed between the second receiving chamber; a cover sheet is disposed at the positioning recess of the ratchet body, and the cover sheet is provided with a driving portion for the torque head to pass through a through hole; a leak-proof ring disposed between the dial button and the outer wall surface of the ratchet; and the above-mentioned configuration, when the cover sheet is assembled and sealed at the first receiving portion of the ratchet body When the recess is in place, the torque head, the tilting member, the toggle button, the elastic linkage member set, and the top can be abutted. The set of parts can be located between the ratchet body and the cover sheet, and the stop ring is pressed against the dial button to the wall surface of the ratchet body, thereby ensuring the toggle portion or the shaft body of the toggle button There is no gap between the outer wall surface and the shaft hole of the ratchet body, and it has the function of preventing dust and rotation from being guided and not easily swaying or disintegrating, thereby greatly increasing the torque value. According to the dust-proof ratchet wrench structure (2) of claim 1, wherein the toggle button is provided with a circular limiting groove, and the limiting groove is arranged at the shaft portion of the toggle button, so as to The leak-stop ring can be moved up and down along the shaft body to be positioned in the limit groove, so that when the shaft portion of the toggle button is assembled at the ratchet body, the leak-stop ring can be clamped The limit groove of the shaft portion of the button is between the shaft holes of the ratchet body. According to the dust ratchet wrench structure (2) of claim 1, wherein the dial button is provided with a circular limiting slot, and the limiting slot is located at the bottom surface of the dialing portion of the toggle button, and the limit is The bit groove has a circular shape and extends downward in the middle of the limiting groove to form a shaft body portion (ie, the limiting groove sleeve is disposed outside the diameter of the shaft body portion), so that the leakage preventing ring can be along the shaft body portion. The sleeve is positioned in the limiting slot, so that when the shaft portion of the toggle button is assembled on the ratchet body, the leakage preventing ring is clamped between the limiting groove of the toggle button to the outer wall surface of the ratchet . According to the dust ratchet wrench structure (2) of claim 1, 2 or 3, wherein one end of the elastic linkage member is placed in the limit portion of the toggle button, and the other end is abutted against The limiting recess of the rear end edge of the damper member. The dust-proof ratchet wrench structure (2) according to the fourth aspect of the patent application, wherein the elastic linkage member is a single spring or a single elastic piece. The dust-proof ratchet wrench structure (2) according to the fourth aspect of the patent application, wherein the elastic linkage member is a combination of a spring cap and a spring. According to the dust-proof ratchet wrench structure (2) of claim 4, the inner wall of the second receiving portion of the ratchet body is formed with a limiting hole toward the handle body, so that the abutting member group can be accommodated therein. The inside of the hole is restrained, and the two ends of the abutting member are respectively abutted against the inner wall surface of the limiting hole and the concave portion of the shaft portion of the toggle button. According to the dust-proof ratchet wrench structure (2) of claim 4, wherein the abutting member is received in the fixed recess of the toggle button, and the two ends thereof are respectively abutted against the dial button. a recessed portion and a limiting hole at a bottom surface of the second receiving portion. According to the dust ratchet wrench structure (2) of claim 7, wherein the outer ring surface of the cover sheet is provided with an outer ring groove, and the positioning of the ratchet body relative to the outer ring groove of the cover sheet An inner ring groove is formed on the inner wall surface of the recess for the buckle member to be disposed in the outer ring groove of the cover sheet and the inner ring recess of the ratchet body. According to the dust-proof ratchet wrench structure (2) of claim 8, wherein the outer ring surface of the cover sheet is provided with an outer ring groove, and the positioning of the ratchet body relative to the outer ring groove of the cover sheet An inner ring groove is formed on the inner wall surface of the recess for the buckle member to be disposed in the outer ring groove of the cover sheet and the inner ring recess of the ratchet body.