CN2551405Y - Ratchet wrench for piping with engaging structure - Google Patents

Abstract

The utility model relates to a ratchet spanner for pipeline with meshing structure, it contains a spanner body, transfer ratchet and elastic braking structure, should transfer the ratchet and hold with the elastic braking structure and establish in the jaw portion that this spanner body one end is the C style of calligraphy, make the operation that the card system was stopped in the cooperation of these two components, and this elastic braking structure comprises a brake block and elastic component, a card portion is established to this brake block one end protrusion, this card portion just can be with this elastic component one end montage, and make the utility model has the advantages of can increase when doing the continuous pulling operation in narrow and small space and should stop the stability when the card system was stopped with the elastic braking structure.

Description

Ratchet wrench for piping with engaging structure

technical field

The utility model provides a ratchet wrench, in particular to an improved structure of a wrench used for pipelines.

Background technique

With the progress and development of the times, the structural form of the wrench varies with the target of use. As shown in Figure 1, the general open-end wrench is used to lock the screw, nut and other screws in the open space, so The opening at one end is ㄇ-shaped, so that the wrench can directly hold the screw. However, if the screw is located in a narrow space, because the jaws on both sides of the opening are thicker, the jaw and the screw are often not connected. Objects on the adjacent sides touch each other. This situation is most obvious when connecting between pipe fittings. Since the space between pipe fittings and pipe fittings is relatively narrow, the structure of the wrench used to lock the pipe fittings has also changed. As shown in Figure 2, the head of one end of the pipe wrench is slightly C-shaped. Because the jaws on both sides of the head are relatively flat and thin, the efficiency of turning the screw is better than that of the traditional open-end wrench. , because when this kind of pipeline uses a wrench to turn the screw, the wrench must be turned by an angle, so that the wrench is separated from the screw, so as to adjust the angle at which the wrench holds the screw, and then the next pulling stroke can be performed, and because The space of the pipeline is narrow, so if the wrench is repeatedly disengaged from the screw and then reinserted, it is often inconvenient to operate, resulting in low efficiency.

Contents of the invention

The main purpose of this utility model is to solve the above problems and provide a ratchet wrench for pipelines. The traditional stability can be more reliable to improve work efficiency and the practicality of the wrench.

The utility model is a ratchet wrench for pipelines with an engaging structure, which includes a wrench body, at least one end of the wrench body has a C-shaped jaw, and a mobilization ratchet is placed in the jaw, wherein: the The mobilization ratchet corresponds to the C-shape of the jaw, and has a ratchet opening, which can cooperate with an elastic braking structure for locking and detent operation. The elastic braking structure is arranged in an accommodation space in the jaw. It is composed of a brake block and an elastic member. One end of the brake block is protruded with a clamping portion, and the clamping portion is assembled with one end of the elastic member to increase the stability of the elastic braking structure in action.

Another structure of the present utility model includes a wrench body and a wrench cover body. One end of the wrench body has an open C-shaped jaw and an accommodating space. An elastic brake structure is set in the space, and it is covered by the wrench cover body, wherein: the mobilization ratchet forms a C-shape corresponding to the jaw, and its outer peripheral surface is provided with ratchet teeth, and the two axial ends are respectively A mobilization end higher than the ratchet is formed so that the mobilization ratchet can be manually driven;

The elastic brake structure is composed of a brake block, an elastic piece and a positioning rod, wherein the brake block is in the shape of a wedge, and a locking tooth is formed on the outer peripheral surface corresponding to the mobilizing ratchet, while the other outer surface is protruded with a a clamping part, the clamping part clamps one end of the elastic member, and the other end of the elastic member forms a circular sleeve hole for the positioning rod to pass through and be positioned in the accommodating space;

Through the composition of the above-mentioned components, the utility model can have the advantages of continuous pulling operation in a narrow space, and at the same time, it can better ensure the stability of the mobilization ratchet when the elastic braking structure is braked.

Description of drawings

Figure 1 is a schematic diagram of the appearance of the first custom creation.

Fig. 2 is a schematic diagram of the appearance of the second conventional creation.

Fig. 3 is a three-dimensional exploded schematic diagram of the utility model.

Fig. 4 is a combined cross-sectional schematic view of the utility model.

Fig. 5 is a schematic diagram of adjusting and dialing the mobilization ratchet of the utility model.

Fig. 6 is a cross-sectional view of the second clamping structure of the present invention.

Fig. 7 is a cross-sectional view of the third clamping structure of the present invention.

Fig. 8 is a cross-sectional view of the fourth clamping structure of the present invention.

Fig. 9 is a cross-sectional view of the fifth clamping structure of the present invention.

Fig. 10 is a cross-sectional view of the sixth locking structure of the present invention.

Fig. 11 is a cross-sectional view of the combination of the first type of brake block, screw plug and elastic member fastened in the present utility model.

Fig. 12 is a cross-sectional view of the combination of the second type of brake block, screw plug and elastic member clamped in the present invention.

Fig. 13 is a cross-sectional view of the combination of the third type of brake block, screw plug and elastic member clamped in the present invention.

Fig. 14 is a cross-sectional view of the combination of the first push piece and the elastic piece fastened in the utility model.

Fig. 15 is a cross-sectional view of the combination of the second push piece and the elastic piece fastened in the utility model.

Fig. 16 is a cross-sectional view of the combination of the third pushing member and the elastic member clamped in the present utility model.

Fig. 17 is a cross-sectional view of the combination of the fourth pushing member and the elastic member clamped in the present utility model.

Fig. 18 is an exploded view of the second preferred embodiment of the utility model.

Detailed ways

Please refer to Fig. 3 to Fig. 5, the utility model has a ratchet wrench for pipelines with an engaging structure, which includes a wrench body 10, a mobilization ratchet 20 and an elastic braking structure 30, wherein:

The wrench body 10 has a jaw 11 and a handle 12, the jaw 11 is C-shaped and has an opening 13, the inner edge of which can accommodate the transfer ratchet 20, and an annular groove 14 is opened in the jaw The inner wall surface of 11 is suitable for a C-shaped buckle 40 to be clamped therein to locate the mobilization ratchet 20. An accommodating space 15 is suitable for passing through the outer surface of the jaw 11, and is connected with the jaw. 11 is connected to the inner edge, and the accommodating space 15 can just accommodate the elastic braking structure 30 .

The mobilization ratchet 20 is C-shaped corresponding to the jaw 11, and has a ratchet opening 21, the inner edge of which is formed with a sleeve 22 for clamping screw parts, and the outer peripheral surface is provided with ratchets 23 at appropriate places. With an annular groove 24, and the two ends in the axial direction are respectively formed with a transfer end 25 slightly higher than the end of the ratchet 23, so that the transfer ratchet 20 can be manually driven (as shown in Figure 5).

The elastic brake structure 30 is composed of a brake block 31 and an elastic member 32, wherein the brake block 31 is in the shape of a taper, accommodated in the accommodation space 15, and formed corresponding to the outer peripheral surface of the mobilization ratchet 20. There is a locking tooth 311, which can be engaged with the ratchet 23 of the mobilizing ratchet 20, and a locking part 312 is formed on one of its outer surfaces, which can be used to connect one end of the elastic member 32. The brake block 31 is accommodated in the accommodation When placed in the space 15, one end of the clamping part 312 is pushed by the elastic member 32, and fixed by a screw plug 33, and, in order to prevent the brake block 31 from improperly detaching from the accommodating space 15, the accommodating The length of the opening connecting the inner edge of the jaw 11 with the space 15 is less than the length of the side of the brake block 31 near the ratchet.

And again as shown in Figures 11 to 13, the clamping portion 312 of the clamping block 31 can be in a convex shape, or a slit can be opened at the end of the convex clamping portion 312, so that the clamping portion 312 and the One end of the elastic member 32 is sleeved, or the clamping portion 312 is in a lateral concave structure to fasten one end of the elastic member 32; at the same time, in order to prevent the brake block 31 from detaching from the accommodating space 15, the The corresponding end edge of the screw plug 33 also forms a clamping portion 331, and the two ends of the elastic member 32 are simultaneously engaged with the clamping portions 312, 331 of the brake block 31 and the screw plug 33, so that the brake block 30 Positioning is more stable.

Therefore, being composed of the above-mentioned components, the wrench of the present utility model can be conveniently and rapidly operated continuously in a narrow space when the wrench is pulling the screw located in the pipeline space. Break away from the screw, and the mode of operation and use of the wrench of the utility model is to make the sleeve 21 set the screw along the path of the pipeline, and then pull the wrench continuously according to the general operation mode, and because the utility model The ratchet opening 21 of the transfer ratchet 20 will be staggered with the opening 13 of the jaw 11 due to the pulling of the wrench when the screw lock (or screw loosening) operation is completed. The opening 21 is aligned with the opening 13 of the jaw 11 to allow the wrench to disengage the screw.

It should be further explained that, when the C-shaped buckle 40 is arranged at the ring groove 14, positioning members such as glue or pins (not shown in the figure) can also be arranged at the near outer end of the ring groove 14. , used to limit the C-shaped buckle 40, to prevent the C-shaped buckle 40 from rotating with the transfer ratchet 20, which will cause inconvenience when the wrench is detached from the screw.

Furthermore, as shown in Figure 7, the brake block 31 of the present utility model can also be designed as a rod column, and the accommodating space 15 is arranged at the inner wall surface of the depth of the jaw portion 11, and pushes on the The other end of the elastic member 32 at one end of the brake block 31 is designed with a circular sleeve hole 321, after a positioning rod 70 is put through the sleeve hole 321, the elastic member 32 is pivotally arranged in the accommodation space 15 .

Next, as shown in Fig. 6 and Fig. 8, the inner wall surface of the accommodating space 15 of the wrench body 10 is suitable, and an accommodating hole 16 can be formed in addition, and the accommodating hole 16 is connected with the accommodating space 15. A pusher 81 and an elastic body 84 can be provided on the inner edge, so that the pusher 81 is pushed against by the elastic body 84 , and one end of the pusher 81 protrudes outward to abut against and position the brake block 31 .

Or, as shown in Fig. 9 and Fig. 10, the jaw 11 can also be provided with a toggle block 82 or a toggle lever 83 on it, and the toggle block 82 or toggle lever 83 can be connected with the push piece. 81 for interlocking cooperation, so as to drive the brake block 31 to change different clamping directions, and in order to prevent the brake block 31 from leaving the accommodating space 15, the length of the brake block 31 on the side of the locking teeth 311, must be greater than the length of the ratchet opening 21 of the mobilization ratchet 20, or, as shown in Figures 14 to 17, a clamping portion 811 is formed on the end face of the push member 81 corresponding to the elastic body 84, so that it is connected to one end of the elastic body 84 card cover.

In addition, as shown in FIG. 18 , another preferred embodiment of the utility model is that the jaw 11 of the wrench body 10 and the brake block 31 and the elastic member 32 set in the accommodating space 15 are fixed by a positioning rod 70 . After pivoting, utilize a wrench cover body 17 to cover again.

In summary, the utility model pipeline ratchet wrench is indeed a very practical and progressive design.

Claims (9)

1. pipeline ratchet spanners with engaging structure, it comprises a wrench body, and at least one end of this wrench body has a jaw portion that is the C font, and ccontaining one transfers ratchet in this jaw portion, it is characterized in that:

This transfers ratchet to C font that should jaw portion, and has a ratchet opening, the running of making the blocking stopper with a resilient structure cooperates, this resilient structure is located in the accommodation space in this jaw portion, form by a brake block and elastic component, this brake block one end is convexly equipped with holding division, this holding division and the one end winding of this elastic component.

2. the pipeline ratchet spanners with engaging structure according to claim 1 is characterized in that, this accommodation space is sealing or outwards runs through form is located at this jaw portion side.

3. the pipeline ratchet spanners with engaging structure according to claim 1 and 2, it is characterized in that a plug screw spiral shell is located at the end of the accommodation space that outwards runs through, and, this plug screw is convexly equipped with another holding division to end face that should elastic component, and this this elastic component of holding division buckle is end in addition.

4. the pipeline ratchet spanners with engaging structure according to claim 1, it is characterized in that, this holding division is convex, offer a profile groove that makes this holding division and elastic component one end socket at the holding division end that is convex, perhaps, this holding division is the indent structure of side direction, an end of this elastic component of snapping.

5. the pipeline ratchet spanners with engaging structure according to claim 1, it is characterized in that, this accommodation space is formed on the wall of this jaw portion inner edge depths, this wall is arranged with a containing hole in addition, this brake block, elastic component and a yoke frame are set respectively, be located in the brake block at this accommodation space place, the length of its latch one side is transferred the length of its ratchet opening of ratchet greater than this.

6. the pipeline ratchet spanners with engaging structure according to claim 5 is characterized in that it also comprises a slide block, and this slide block ecto-entad is placed on this containing hole place, and simultaneously, this yoke frame and elastic component are located in this slide block place.

7. the pipeline ratchet spanners with engaging structure according to claim 5 is characterized in that, this yoke frame is to forming holding division, this elastic component one end of this holding division buckle by elastomeric end face.

8. pipeline ratchet spanners with engaging structure, it comprises a wrench body and spanner lid, this wrench body one end has an open C font jaw portion and an accommodation space, in this jaw portion, can transfer ratchet for ccontaining one, one resilient structure then is set in the accommodation space, and solid by this spanner cover cap, it is characterized in that:

This transfer ratchet forms C font that should jaw portion, and its outer peripheral face is equipped with ratchet, and axial two ends are formed with the transfer end that is higher than ratchet respectively;

This resilient structure is made up of a brake block, elastic component and backstay, wherein, brake block is the contract font, it is formed with latch to the outer peripheral face that should transfer ratchet, another lateral surface then convexes with holding division, this backstay of confession that this elastic component one end of this holding division cutting ferrule, the in addition end of this elastic component then form a circle shape covers and is positioned trepanning in this accommodation space.

9. the pipeline ratchet spanners with engaging structure according to claim 8 is characterized in that, the opening length of adjacent this jaw portion inner edge of this accommodation space is less than the length of this brake block by ratchet one side.

Images