CN203092440U - Control positioning device and ratchet wrench including same - Google Patents

Abstract

A control positioning device and a ratchet wrench comprising the same are provided, the control positioning device comprises a driving part, a driving part with a ratchet, a direction control button and two opposite corresponding brake blocks, each brake block is provided with a pulled through hole from the rear end surface, the pulled through hole penetrates through the inner side end surface of the brake block, a containing hole is arranged below the pulled through hole on the inner side end surface, and a first elastic part is arranged between two opposite containing holes of the two brake blocks; a slot hole is dug in the groove part of the limit button, the direction control button comprises a poking control part and a shaft column body, wherein a second elastic piece penetrates through the outside of the shaft column body and is inserted in the slot hole, and the poking control part is correspondingly inserted in the poked through holes of the plurality of the detent blocks at the front end. The utility model discloses a control positioner can make full use of this space height of putting the slot part of pulling, and gives the latch of pulling the piece and the ratchet of spanner driving piece and reach the joint of maximum area, obtains splendid torsion state from this.

Description

Control positioning device and ratchet wrench including same

technical field

The utility model relates to a control and positioning device, in particular to a control and positioning device for a ratchet wrench and a ratchet wrench comprising the same.

Background technique

As shown in Fig. 11 to Fig. 15, in the structure of the conventional dial-control ratchet wrench 50, a housing part 52 is mainly provided in the driving part 51, and there is a connected catch groove part at the inner rear end of the housing part 52. 53, the rear end of the catch groove 53 communicates with a control button groove 54, and a column hole 55 and a concave hole 56 are dug in the control button groove 54, and a limit steel ball 57 is arranged in the concave hole 56; A driver 60 with a ratchet 61 can be clamped in the accommodating portion 52, and two correspondingly reversed detent blocks 70 are arranged in the detent groove portion 53, and the front faces of these detent blocks 70 are card. The tooth 72 structure can be clamped with the ratchet 61 of the driving member 60, and the upper end surfaces of the detent blocks 70 are provided with a controlled post 71, and an elastic member 73 is installed between the two detent blocks 70; A direction control button 80 can be inserted in the control button groove 54, a dial control part 81 is provided at the front end of the lower side of the direction control button 80, and a positioning column 82 and a limit groove 83 are provided at the rear end thereof. , and the positioning post 82 is inserted into the post hole 55 of the knob groove 54 to form the rotation axis of the direction control knob 80 .

In this way, through the above structure, when the direction control button 80 is deflected to one side, the direction control button 80 can be locked and positioned with the limit steel ball 57 through the limit groove 83, and the dial control part 81 is hooked against its front end. The driven column 71 of the moving block 70 makes the locking tooth 72 of the locking block 70 disengage from the ratchet 61 of the driving part 60, and the pushing block 70 at the other end is pushed toward the front end and the driving part 60 by the pushing of the elastic part 73. Clamping, and then forming a one-way ratcheting state, so the change of the ratcheting direction can be achieved by using the direction control knob 80 to change the direction.

Although the commonly used ratchet dial control design can already achieve the effect of two-way switching, there are indeed many shortcomings in actual use or manufacturing, as follows:

Firstly, in order to prevent the direction control button from disengaging, it is necessary to limit the position by a structure inserted in the groove of the control button, but this structure will increase the difficulty of manufacturing, and then cause cost increase or disadvantages in processing.

Second, due to the rotating action of the direction control button and the structural relationship between the dial control part and the controlled column, the overlapping part of the groove part of the control button and the groove part of the control button must reserve an active space (as shown in Figure 13), so it will cause The setting height of the detent block is greatly compressed, which in turn affects the engagement area with the locking teeth of the driver, so there may be a problem of insufficient torque.

Utility model content

The technical problem to be solved by the utility model is to provide a ratchet wrench control and positioning structure in order to overcome the defects in the use of the dial control structure of the ratchet wrench in the prior art.

The utility model solves the problems of the technologies described above through the following technical solutions:

A control and positioning device, which includes a driving part, a driving part with a ratchet, a direction control button and two oppositely corresponding detent blocks, the driving part is provided with an accommodating part, and the accommodating part The rear end of the inner side is provided with a connected catch groove, and the rear end of the catch groove is provided with a limit button groove. The detent blocks are arranged in the detent groove, and the front faces of the detent blocks have a number of latches, which can engage with the ratchets of the driving member. The characteristics are as follows:

Each of the catch blocks is dug from the rear end face with a dialed through hole, and the dialed through hole penetrates to the inner end face of the brake block, and a receiving hole is arranged below the dialed through hole on the inner end face, and there are two A first elastic member is installed between two opposite accommodating holes of the stop block;

A slot hole is dug in the limit button groove, and the direction control button includes a limit part, a retracted part, a dial control part and a shaft cylinder, wherein a second elastic member is pierced outside the shaft cylinder and Inserted in the slot hole, the dial control part is correspondingly inserted in the dialed through holes of the detent blocks at the front end. The retracted part prevents the direction control knob from overlapping with the set positions of the detent blocks when rotating.

In the utility model, through the switch of the direction control button in the button limiting groove, the dial control part can go deep into the dialed perforations of the braking blocks that are stuck in the front, and then pull the These detent blocks move toward the rear end of the inner side, and at the same time as the detent blocks move, the detent block at the other end can be pressed against the ratchet at the front end by the elastic member, thereby achieving the ratchet direction. change, and since the dialing portion and the dialed through hole do not occupy the bayonet area of the detent blocks, the maximum area of the bayonet and the ratchet of the driving member can be obtained.

Through the above structure, the direction control button switches the driving member to produce multiple usage modes of forward rotation, reverse rotation and fixed rotation. The dial control part is limited in the dialed through holes of the detent blocks, so that the direction control knob can be prevented from being disengaged, and the direction control knob is supported upward by the second elastic member, so as to achieve the positioning during the dial operation .

Preferably, the first elastic member and/or the second elastic member is a spring.

Preferably, the rear end of each detent block has an extension section, and the dialed through hole is disposed backward on the extension section, and the dial portion of the direction control button is retracted correspondingly. In this way, it can be used in the configuration of smaller wrenches.

The utility model also provides a ratchet wrench, which is characterized in that it includes the above-mentioned control and positioning device, and the driving part is arranged on the ratchet wrench.

The positive progress effect of the utility model is that the control and positioning device of the utility model is designed through the through-type dialed perforation of the detent block and the penetrating and snapping design of the direction control button dial control part, as well as the retractable part structure of the direction control, so that The direction control button will not overlap with the setting position of the detent block during the rotation operation, so that the detent block can fully utilize the space height of the detent groove, and the locking teeth of the detent blocks and the driving member The ratchets of the ratchet reach the maximum area of engagement, thereby obtaining an excellent torque state.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a schematic diagram of an exploded structure of Embodiment 1 of the present utility model.

Fig. 3 is a side view sectional structural schematic diagram of Embodiment 1 of the present utility model.

Fig. 4 is a schematic view 1 of the structure and action of Embodiment 1 of the present utility model.

Fig. 5 is a schematic view 2 of the structure and action of Embodiment 1 of the present invention.

Fig. 6 is a schematic view 3 of the structure and action of Embodiment 1 of the present utility model.

Fig. 7 is a schematic diagram of an exploded structure of Embodiment 2 of the present utility model.

Fig. 8 is a schematic view 1 of the structure and action of Embodiment 2 of the present utility model.

Fig. 9 is a schematic view 2 of the structure and action of Embodiment 2 of the present utility model.

Fig. 10 is a schematic view 3 of the structure and action of Embodiment 2 of the present utility model.

Fig. 11 is a schematic diagram of a three-dimensional structure of the prior art.

Fig. 12 is a schematic diagram of an exploded structure of the prior art.

Fig. 13 is a side view sectional structural schematic diagram of the prior art.

Fig. 14 is a schematic view 1 of the structure and action of the prior art.

Fig. 15 is a schematic view 2 of the structure and action of the prior art.

[reference sign]

(10) Wrench

(11) Drive unit

(12) Accommodating part

(13) Set the catch groove

(14) Limit button groove

(15) slotted hole

(20) drive parts

(21) ratchet

(30) Detent block

(31) dialed perforation

(32) Accommodating hole

(33) snap teeth

(34) The first elastic member

(35) Extension section

(40) Direction control button

(41) Limiting part

(42) Retracted part

(43) Dial Control Department

(44) shaft cylinder

(45) Second elastic member

(50) wrench

(51) Drive unit

(52) Accommodating part

(53) Set the catch groove

(54) Button groove

(55) post hole

(56) concave hole

(57) limit steel ball

(60) drive parts

(61) ratchet

(70) Detent block

(71) Receiving column

(72) snap teeth

(73) Elastic parts

(80) Directional control button

(81) Dial Control Department

(82) positioning column

(83) Limiting groove

Detailed ways

A preferred embodiment is given below, and the utility model is described more clearly and completely in conjunction with the accompanying drawings.

Example 1:

First of all, as shown in Figure 1, Figure 2 and Figure 3, the utility model is mainly provided with a housing part 12 on the driving part 11 of the wrench 10, and there is a connected catch groove part 13 at the inner rear end of the housing part 12. , and the rear end of the catch groove portion 13 is also provided with a limit button groove portion 14, and a slot hole 15 is dug in the limit button groove portion 14. Wherein, a driving member 20 with a ratchet 21 can be clamped in the accommodating portion 12, and two correspondingly reversed detent blocks 30 are arranged in the detent groove portion 13, and the front surface of the detent block 30 is a detent 33 structure, which can be engaged with the ratchet 21 of the driving member 20. The stop block 30 is provided with a dialed through hole 31 from the rear end face to the inner end face thereof, and a receiving hole 32 is provided below the dialed through hole 31 of the inner end face. , and a first elastic member 34 is installed between the two opposite accommodating holes 32 of the two locking blocks 30 . Then, the limit button groove 14 can be used to set a direction control button 40, and the direction control button 40 is composed of a limit part 41, a retracted part 42, a dial control part 43 and a shaft cylinder 44, wherein the shaft cylinder The body 44 is pierced with a second elastic member 45 and is inserted into the slot 15 of the limit button groove 14, and the dial control part 43 is respectively inserted in the dialed through holes 31 of the two stop blocks 30 at the front end, so that the direction The control button 40 can be supported upward by the elastic member 45, so as to achieve the positioning during the dial operation, and because the dial control part 43 is limited in the dialed through hole 31 of the detent block 30, the direction control button 40 can be avoided. Disengaged, resulting in an effective limit state.

Next, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, by turning and switching the direction control button 40 in the limit button groove 14, the dial control part 43 can go deep into the detent block that is stuck in the front. 30 through the dialed through hole 31, and then pull the stop block 30 to move to the rear end of the inner side, and when the stop block 30 moves, it can squeeze the ratchet of the stop block 30 at the other end to the front end through its elastic member 34 21 is locked, thereby achieving the change of the ratcheting direction, and its retracted portion 42 prevents the direction control button 40 from overlapping with the setting position of the detent block 30 when it is rotated. In addition, through the supporting positioning design of the elastic member 45 under the direction control button 40, the direction control button 40 can switch and control the driving member 20 to produce various usage modes of forward rotation, reverse rotation and fixation, and because the dial control structure does not Occupying the locking tooth 33 area of the detent block 30 , in this way the locking state of the locking tooth 33 and the ratchet 21 with the largest area can be obtained.

Example 2:

As shown in Fig. 7, Fig. 8, Fig. 9 and Fig. 10, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that an extension section 35 is formed at the rear end of the detent block 30, so that the dialed The perforation 31 can also be arranged at the extension section 35 backwards, and the dial control part 43 of the direction control button 40 can be retracted together, so that it can be applied to the configuration of the wrench 10 with a smaller volume, and then achieve this utility model extended application of the structure.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims (4)

1. A control and positioning device, which includes a driving part, a driving part with a ratchet, a direction control button and two oppositely corresponding detent blocks, the driving part is provided with an accommodating part, and the accommodating part The inner rear end of the part is provided with a connected catch groove part, the rear end of the catch groove part is provided with a limit button groove part, the driving part is set in the accommodating part, and the direction control button is set in the limit button groove In the part, the detent blocks are arranged in the detent groove part, and the front faces of the detent blocks have a number of latches, which can engage with the ratchets of the driving part, and are characterized in that: Each of the catch blocks is dug from the rear end face with a dialed through hole, and the dialed through hole penetrates to the inner end face of the brake block, and a receiving hole is arranged below the dialed through hole on the inner end face, and there are two A first elastic member is installed between two opposite accommodating holes of the stop block; A slot hole is dug in the limit button groove, and the direction control button includes a limit part, a retracted part, a dial control part and a shaft cylinder, wherein a second elastic member is pierced outside the shaft cylinder and Inserted in the slot hole, the dial control part is correspondingly inserted in the dialed through holes of the detent blocks at the front end. 2. The control positioning device according to claim 1, wherein the first elastic member and/or the second elastic member is a spring. 3. The control and positioning device according to claim 1 or 2, wherein the rear end of each stop block has an extension section, the dialed through hole is arranged backward at the extension section, and the direction control button The control part of the dial is retracted correspondingly. 4. A ratchet wrench, characterized in that it comprises the control and positioning device according to any one of claims 1 to 3, and the driving part is arranged on the ratchet wrench.

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