CN201483417U - Direction control structure for ratchet wrench - Google Patents

Abstract

The utility model discloses a ratchet spanner direction control structure. The transmission set includes one main body divided into one head area and one handle area, one holding part, one interval part, one limiting part and one handle area with notch area, and one screw hole and one locating hole in the limiting part to make the driving body and the stopper set between the head area and the cover body and to make the hollow limiting body and the control body sleeve the handle area of the main body successively. The structure drives the transmission group to move in a horizontal seesaw mode through the circumferential rotation of the control body, so that the elastic piece of the transmission group can change the position of the brake body really, and effective switching control is achieved.

Description

Ratchet wrench direction control structure

technical field

The utility model relates to a ratchet wrench, in particular to a direction control structure of the ratchet wrench.

Background technique

Commonly used ratchet wrench structure, please refer to the No. 492379 "Ratchet Wrench Structure" that the applicant previously applied to Taiwan, China and announced the approval. It mainly includes a body, a driving body, a braking body, a transmission body and a control body. The main body can be divided into a head part and a handle part, and an accommodating part and a first section are respectively provided at an appropriate position of the head part, and the accommodating part can be connected with the first section for the driving body and the latch. The moving body is respectively placed in the accommodating part and the first section; the handle part is provided with a groove part, a connecting part and a recessed part at appropriate places, and the two sides of the groove part can be connected with the first section and the connecting part , and the communication part can be connected with the recessed part again, and the appropriate place of the communication part is provided with a shaft part, so that the transmission body can be placed in the groove part, the communication part and the depression part of the handle part, and the transmission body The shaft part can be assembled on the shaft part of the handle part, and the toggle part of the transmission body can be located on the convex column-shaped driving part of the top surface of the brake body; the control body is hollow and can be nested On the handle part of the main body, there is a limiting part on the edge of the control body, so that the rear end of the transmission body can be placed in the limiting part, and the circular rotation of the control body drives the transmission body to move in a horizontal seesaw motion. , so that the toggle part of the transmission body can actually move and change the position of the brake body, so as to achieve effective switching control.

Although the above-mentioned scheme can achieve the originally set purpose, it is highly praised by the industry and general operators. However, in view of the rapid development of technology in the industry and spare no effort, the applicant will continue to study and improve it to make it perfect and practical. ; and recently, after countless updates of experimental tests and summarizing the actual operation and use opinions of consumers, it is found that there are still the following problems that need to be further improved:

1. Since the material of the general braking body is made of powder metallurgy, and the arc-shaped arrangement of teeth on the front surface of the braking body must mesh with the teeth on the peripheral edge of the driving body, in addition, the top surface of the braking body The driving part is a small-diameter cylinder that protrudes upwards. Therefore, it must be sufficient to pull the braking body to move horizontally under a certain force, and it is easy to cause a relative shear force between the transmission body and the braking body. A major problem is that the driving portion on the top surface of the actuator is broken by the shear force.

2. Since the transmission body is made of a thin plate of iron, the tolerance of the toggle part produced by it is often too large due to the fact that the thin plate of iron is not completely horizontal, and it is easy to cause the trigger to fail to be sure. The movement of moving bodies is another problem for it.

3. As mentioned in point 2, since there is a stop part protruding downwards between the two shifting parts of the transmission body, the size of the shifting part and the stop part is relatively reduced, especially, Another problem is that the stop portion of the actuating body that moves back and forth is pressed and bent, causing the stop portion to break.

4. Since the transmission body is made of thin plate iron, and the toggle part of the transmission body is placed on the convex column-shaped driving part on the top surface of the braking body, it is easy to cause the braking body to move slightly overturned (ie The movement speed of the top surface of the braking body is faster than that of the bottom surface, and it is inconsistent), in addition, the rigidity of the transmission body is not enough, it is more likely to cause the braking body to not move to the desired position, which is another major problem .

5. Since the transmission body is moved by the rotation of the control body, and the design of the transmission body or the control body has no fixed position, the control body will change the direction of the transmission body if it is hit slightly. troubled.

Therefore, how to develop a function of precise control of direction switching by turning with one hand is unanimously expected by consumers, and it is also a major issue that manufacturers urgently need to develop and improve.

Utility model content

In order to overcome the above defects, the utility model aims to provide a ratchet wrench direction control structure.

In order to achieve the above object, the utility model ratchet wrench direction control structure, which includes: a driving body, the outer peripheral edge is provided with a tooth portion, and the driving body forms a polygonal driving portion towards the outer end, and a radial direction is provided on the driving portion. Hole for the ball to be placed in the radial hole; the brake body, the front end surface is provided with a tooth portion, and the tooth portion is engaged with the tooth portion of the driving body; the control body is placed on the handle area of the body, And there is a recessed wrenching part formed on its inner side for accommodating the end of the transmission part of the transmission group; the cover body is provided with at least a through hole, and the cover body is assembled on the head area and the handle area of the body , and one end of the driving body passes through the through hole and protrudes outside it; the body is divided into a head area and a handle area, the head area is formed with an accommodating part, an interval part and a recessed area is formed on the handle area, and Shaft holes and positioning holes are respectively provided in the recessed area, the driving body and the braking body are assembled between the accommodation part, the interval part and the cover body of the head area, and the control body is sleeved on the handle area of the body; A transmission group is set between the recessed area of the handle body area and the cover body, and the transmission group is formed by an elastic elastic member arranged in the cutaway groove of the transmission member, and the two ends of the transmission group are linked to the control body respectively. On one side of the pulling part and the trigger body, and at the end of the transmission part of the transmission group, there is an abutting part facing downwards. The abutting part set on the transmission group is limited by the abutment of the resisting part with an elastic recovery shape bit.

In the above structure, the two ends of the transmission group formed by the elastic elastic part set in the slot of the rigid transmission part are respectively placed in the pulling part of the control body and in the slot of the braking body, and the rigidity of the transmission group The end of the transmission part is provided with an abutting part downwards, so that the resisting part with an elastic recovery shape can be abutted against the abutting part; in this way, it not only prevents the braking body from being damaged due to shear force due to movement The phenomenon of use can make the transmission group really drive the brake body to move horizontally to the predetermined position, and at the same time, it can also provide the position of the control body after rotation without being easily bumped and change its direction, thereby achieving direction positioning and single operation. The switching maneuverability of the precise control direction of the hand rotation is its progressive function.

Description of drawings

Fig. 1 is a three-dimensional exploded schematic view of the utility model.

Fig. 2 is a partially combined sectional state diagram of Fig. 1 .

FIG. 3 is a partially assembled cross-sectional state diagram after switching directions in FIG. 2 .

FIG. 4 is another partial composite cross-sectional state view of FIG. 3 .

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

The utility model relates to a ratchet wrench direction control structure, please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, which includes a body 1, which can be divided into a head area 10 and a handle body area 11, wherein the head An accommodating portion 101, an interval portion 102, and a limiting portion 103 are respectively formed at appropriate places in the area 10, and the limiting portion 103 is located on the side of the accommodating portion 101, and an accommodating portion is formed between the two limiting portions 103 101 communicated with the interval portion 102, for the driving body 2 and the braking body 3 to be placed in the accommodation portion 101 and the interval portion 102 respectively; or respectively arranged in the head area 10 or the handle area 11), and a screw hole 104 is provided on the top surface of the limiting part 103, so that the cover body 7 can be assembled by using the bolt 8 to pass through the positioning hole 70 of the cover body 7 It is fixed on the body 1, and the driving body 2, the braking body 3 and the transmission group 4 can be arranged between the cover body 7 and the body 1; in addition, the handle area 11 can be used for the hollow limiter 5 and the control The body 6 can be sleeved on the handle area 11 of the body 1 in sequence, so that the two ends of the transmission group 4 that have been located between the recessed area 112 of the handle area 11 and the cover body 7 can be placed on the control body 6 respectively. In the pulling part 60 and in the notch 33 of the trigger body 3, moreover, a protruding spacer 113 with a shaft hole 114 and a limit hole 115 are formed at an appropriate place in the recessed area 112, so that the transmission group 4 The shaft portion 402 can be accommodated in the shaft hole 114 to rotate, and can make the spring 16 and the resisting member 15 accommodated in the limiting hole 115 just be able to abut against the abutting portion 403 of the transmission group 4, thereby achieving It is used for the positioning of the transmission group 4 after rotation; and the above-mentioned resisting member 15 can be a ball, a rod body with a round end, etc., which is the best;

The outer periphery of the driving body 2 is provided with a tooth portion 20, so that the tooth portion 30 of the braking body 3 can be engaged with it; A radial hole 210 and an axial hole 211 are respectively provided, and the radial hole 210 and the axial hole 211 are connected, so that the push rod 25 and the spring 26 can be accommodated in the axial hole 211 and the ball 22 can be placed. In the radial hole 210, whether the ball 22 will protrude outside the driving part 21 is determined by the position change of the groove that has been arranged on the push rod 25 after moving, as a sleeve (not shown) whether It is locked with the driving part 21; and the above-mentioned axial hole 211 can be designed to pass through the driving body 2, or not to penetrate the driving body 2;

The arc-shaped front end surface of the braking body 3 is provided with a tooth portion 30, and arc-shaped abutment portions 31, 32 are formed on both sides thereof, and a longitudinal slot 33 is provided in the middle of the rear end surface, so that the transmission One end of the elastic member 41 of the group 4 can be placed in the slot 33; and the above-mentioned braking body 3 can be replaced by two independent pieces with teeth 30 at one end (commonly known as left and right pieces);

The transmission group 4 can be divided into a rigid transmission part 40 and an elastic part 41 with elastic recovery force. Wherein, the front edge of the rigid transmission part 40 is provided with a side U-shaped sectional groove 401 inwardly, and at its appropriate position A protruding shaft portion 402 is provided downward, and a downwardly disposed abutment portion 403 is formed at the end thereof, so that the notch 410 at one end of the elastic member 41 can be assembled on the cut groove 401, and the side of the notch 410 The protruding foot 411 on the side is against the effect of the cut groove 401, so that the elastic member 41 will not directly form a phenomenon of falling away from the transmission member 40; There is a limit rod 405 protruding upwards, so that the limit rod 405 can be used as one end of the cover body 7 to abut against the top. At the same time, it can also be used as the limit rod 405 to force the limit rod 405 by the up and down seesaw movement of the front and rear ends. The top surface of the top surface can be pushed against the top inner surface 50 of the hollow shape limiter 5, and as the rocking usefulness of the front and rear ends of the limit transmission group 4 up and down distance;

The limiting body 5 is hollow, and it is provided with a planar top inner surface 50, so that it can be placed on the handle area 11 of the body 1, and the top inner surface 50 can be used as one end of the pressing cover body 7 and the transmission The limit rod 405 of group 4 is used; in addition, the limit body 5 is provided with an outwardly extending semi-open outer flange 51, so that it can be used as a sleeve for the control body 6;

The control body 6 can be placed on the limit body 5, and a concave pulling part 60 is formed on the inner side thereof, so as to accommodate the end of the transmission part 41 of the transmission group 4;

The cover body 7 is provided with a positioning hole 70 and a through hole 71 for accommodating the bolt 8 and the driving body 2 respectively;

When holding the rubber handle 9 with one hand and turning the control body 6, the eccentric rotation of the wrenching part 60 already positioned at the control body 6 will drive the rigid transmission part of the transmission group 4 already positioned in the depressed wrenching part 60. 40 moves horizontally around its shaft 402, and will drive the elastic member 41 assembled in the front end slot 401 of the rigid transmission member 40 to move in the opposite direction, and will be inserted into the braking body by one end of the elastic member 41. 3, and the tooth portion 30 of the driving body 3 is engaged with the tooth portion 20 of the driving body 2. Therefore, when the transmission member 40 is moved by the eccentricity of the pulling portion 60 of the control body 6, then Due to the effect of the rigid material of the transmission member 40, the end of the abutment portion 403 of the transmission member 40 will move downward, and the bottom edge of the abutment portion 403 will be forced to compress the resisting member 15 downwards and is already located in the limiting hole 115. The inner spring 16 is contracted until the bottom edge of the abutting part 403 crosses the resisting part 15, and then the resisting part 15 will be pushed up and pressed against the other side of the abutting part 403 by the rebound force of the spring 16 ( As shown in Figure 4), in this way, the positioning operation characteristic that the position of the control body 6 after the rotation can not be easily bumped and just change its directionality can be provided;

Simultaneously, the other end of the transmission member 40 moves in the opposite direction with the same force, and will forcefully move the elastic member 41 that has been assembled on the sectional groove 401 to move accordingly, causing the elastic member 41 to move due to the strong pulling force. Bending then forces the detent body 3 to start moving upwards, in other words, the tooth top of the tooth portion 30 of the detent body 3 will be forced to move toward the tooth top along the tooth root of the tooth portion 20 of the driving body 2, so that The braking body 3 will move back slightly and be in a more curved state until the braking body 3 is moved upwards to a predetermined position (as shown in Figure 2 ) by being pulled by the elastic member 41, so as to prevent the The brake body 3 is damaged due to shear force due to movement and cannot be used, and the transmission group 4 can drive the brake body 3 to move horizontally to the predetermined position, and then achieve direction positioning and one-handed rotation. manipulative.

Claims (10)

1. A ratchet wrench direction control structure, comprising: The driving body has a tooth portion on the outer periphery, and the driving body forms a polygonal driving part toward the outer end, and a radial hole is provided on the driving part for the ball to be placed in the radial hole; The braking body has a tooth portion on the front end surface, and the tooth portion is engaged with the tooth portion of the driving body; The control body is placed on the handle area of the main body, and a concave-shaped pulling part is formed on the inner side for the end of the transmission part of the transmission group to be accommodated; The cover has at least a through hole, the cover is assembled on the head area and the handle area of the body, and one end of the driving body protrudes outside it through the through hole; The main body is divided into a head area and a handle body area. The head area is formed with an accommodating part, an interval part, and a recessed area is formed on the handle area, and a shaft hole and a positioning hole are respectively provided in the recessed area. The driving body, the catch The moving body is assembled between the accommodation part, the interval part and the cover of the head area, and the control body is sleeved on the handle area of the body; it is characterized in that: A transmission group is assembled between the recessed area of the handle body area and the cover body, and the transmission group is formed by an elastic elastic member arranged in the cutaway groove of the transmission member, and the two ends of the transmission group are respectively linked to the control The pulling part of the body and the side of the braking body, and the end of the transmission part of the transmission group is provided with an abutment part downward, and the abutment part arranged on the transmission group is abutted by the resisting part with an elastic recovery shape. limit. 2. The direction control structure of the ratchet wrench according to claim 1, characterized in that: the body is provided with a limiting portion, and the limiting portion extends from the head area to the handle body area to support the cover assembly and fix it in the head area of the body And the handle body area, the driving body, the braking body and the transmission group are sandwiched between the cover body and the body. 3. The direction control structure of the ratchet wrench according to claim 1, characterized in that: the body is provided with a limiting part, and the limiting part is arranged in the area of the handle body, and the supporting cover is assembled and fixed on the head area of the body and In the handle body area, the driving body, the braking body and the transmission group are sandwiched between the cover body and the body. 4. The direction control structure of the ratchet wrench according to claim 1, characterized in that: the body is provided with a limiting part, and the limiting part is arranged in the head area to support the cover body to assemble and fix the head area and the handle of the body In the body area, the driving body, the braking body and the transmission group are sandwiched between the cover body and the body. 5. The direction control structure of the ratchet wrench according to claim 2, 3 or 4, characterized in that: the recessed area of the handle area of the body is respectively formed with a limited hole and a raised spacer with a shaft hole, The spring and the resisting piece accommodated in the limiting hole abut against the abutting portion of the transmission group, and the protruding spacer with the shaft hole is accommodated in the shaft hole by the shaft portion of the transmission group. 6. The direction control structure of the ratchet wrench according to claim 5, characterized in that: a hollow limiter is sleeved on the handle area of the body, and a planar top inner surface is arranged in the limiter, One end of the cover body or the limiting rod of the transmission group is pressed on the inner surface of the top; the limiting body is provided with an outwardly extending outer flange to be sleeved by the control body. 7. The direction control structure of the ratchet wrench according to claim 5, wherein the resisting member is a ball or a rod with a round end. 8. The direction control structure of the ratchet wrench according to claim 6, characterized in that: the cover is provided with a positioning hole, and the positioning hole is set relative to the screw hole on the limit part of the body, and the bolt passes through the cover The positioning hole of the body is screwed into the screw hole, and the cover body is assembled and fixed on the head area and the handle body area of the body. 9. The direction control structure of the ratchet wrench according to claim 6, characterized in that: one end of the transmission group is linked to one side of the braking body. There is a gap in the middle of the rear end surface of the braking body, and one end of the transmission group is inserted The two sides of the braking body form arc-shaped abutment parts, and a tooth part is formed on the front end surface between the two abutment parts, and the tooth part engages with the tooth part of the driving body. 10. The direction control structure of the ratchet wrench according to claim 9, characterized in that: the driving body is provided with an axial hole, and the axial hole and the radial hole are connected, and the push rod and the spring are accommodated in the axial direction. The hole and the ball are placed in the radial hole.

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