CN203665395U

CN203665395U - Bent ratchet wrench

Info

Publication number: CN203665395U
Application number: CN201320765777.8U
Authority: CN
Inventors: 徐峰; 张振平; 杨树学; 千力; 任元杰
Original assignee: SHAANXI DONGFANG AVIATION INSTRUMENT Co Ltd
Current assignee: SHAANXI DONGFANG AVIATION INSTRUMENT Co Ltd
Priority date: 2013-11-19
Filing date: 2013-11-19
Publication date: 2014-06-25
Anticipated expiration: 2023-11-19

Abstract

The utility model discloses a bent ratchet wrench. The bent ratchet wrench comprises a wrench head and a wrench rod. The wrench rod comprises a fixation rod at the front section and a sleeve rod at the rear section. A bending mechanism capable of bending the sleeve rod by 90 degrees at the tail end of the fixation rod is mounted between the fixation rod and the sleeve rod. A two-way ratchet unit is arranged on the wrench head. According to the bent ratchet wrench, when the bent ratchet wrench is used in narrow space, the wrench rod can be bent by 90 degrees to reduce the wrench rotation radius and is restored to the normal linear state after the wrench pre-tightens a target nut, and force is applied to screw the target nut. By means of the two-way ratchet unit, rotation of the wrench can be achieved with the wrench head not leaving the target nut, so that the target nut can be screwed continuously. The bent ratchet wrench can perform operation in narrow space and is convenient to operate and high in work efficiency.

Description

Folding type ratchet spanner

Technical field

The utility model belongs to hand-operated tools, and what relate to is a kind of manual wrench, and what be specifically related to is a kind of manually ratchet spanner.

Background technology

At present, the body length of common manual spanner is all fixed, and must have enough rotary spaces, and in a lot of places, owing to being subject to the spatial limitation of assembly station, this spanner is bad to be made, and even cannot use when use.In addition, common manual spanner can not self turn round, and obtains the clamping orientation of bayonet socket and the target nut of ceaselessly adjusting driving end in the process of the turn of the screw, and operating efficiency is not high.

Summary of the invention

The purpose of this utility model is to overcome the existing above-mentioned defect of existing manual wrench, proposes the ratchet spanner that a kind of wrenching bar can bend.

The technical scheme that realizes above-mentioned purpose is: a kind of folding type ratchet spanner, comprise driving end and wrenching bar, described wrenching bar comprises the fixed bar of leading portion and the loop bar of back segment, a turnover mechanism is installed between fixed bar and loop bar, and this turnover mechanism can make the tail end shape in 90 ° bending of loop bar at fixed bar; On described driving end, two-way ratchet device is housed.

Described turnover mechanism is made up of guide rod, guide block, spring and locking nut, guide block is sleeved on the leading portion of guide rod and can on guide rod, slides, spring housing is contained in the back segment of guide rod, and its one end is pressed on the rear end face of guide block, and the other end is fixed on the afterbody of guide rod by locking nut; The rear end of described fixed bar is provided with guide groove, and guide rod is inserted in guide groove and is hinged by bearing pin and fixed bar, and guide rod can do 90 ° of rotations in guide groove, and described guide block is connected by bearing pin with the leading portion of loop bar.

The utility model is in the time that comparatively narrow space uses, can be first by wrenching bar 90-degree bent, make the contraction in length of wrench body, to reduce the radius of gyration of spanner, until the spanner of bending state by after target nut pretension, again wrenching bar inflection is become to normal linear state, then target nut is tightened in reinforcing; Bidirectional ratchet mechanism can make driving end in the situation that not leaving target nut, realize spanner revolution, constantly target nut is carried out to tightening operation.The utility model can carry out operation at narrow space comparatively, and easy to operate, and operating efficiency is very high.

Brief description of the drawings

Fig. 1 is the side fragmentary, perspective view of an embodiment of the utility model.

Fig. 2 is positive fragmentary, perspective view embodiment illustrated in fig. 1.

Fig. 3 is the schematic diagram of the utility model bending state.

Fig. 4 is the front schematic view of mechanism of transferring in the utility model.

Fig. 5 is the side schematic view of turnover mechanism.

In figure: 1. driving end, 2. fixed bar, 3. loop bar, 4. guide groove, 5. guide rod, 6. guide block, 7. spring, 8. locking nut, 9,10. bearing pin.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As Figure 1-5, the utility model comprises driving end 1 and wrenching bar, on driving end 1, two-way ratchet device is housed, wrenching bar comprises the fixed bar 2 of leading portion and the loop bar 3 of back segment, a turnover mechanism is installed between fixed bar 2 and loop bar 3, and this turnover mechanism can make the tail end shape in 90 ° bending of loop bar 3 at fixed bar 2.

In more detail, on the rear end face of fixed bar 2, have a perfectly straight guide groove 4.Turnover mechanism is made up of guide rod 5, guide block 6, spring 7 and locking nut 8.Guide block 6 is sleeved on the leading portion of guide rod 5 and can on guide rod 5, slides, and spring 7 is sleeved on the back segment of guide rod 5, and its one end is pressed on the rear end face of guide block 6, and the other end is fixed on the afterbody of guide rod 5 by locking nut 8, as shown in Fig. 4-5.Guide rod 5 is inserted in guide groove 4 also hinged by bearing pin 9 and fixed bar 2, and guide rod 5 can do 90 ° of rotations in guide groove 4.Turnover mechanism integral assembling is in loop bar 3, and guide block 6 is connected by bearing pin 10 with the leading portion of loop bar 3, as shown in Figure 1-2.

When wrenching bar need to be bent, to pull back with the loop bar 3 of fixed bar 2 linear states, after the loop bar 3 that moves just drive guide block 6 to move backward together, when the front end of loop bar 3 and guide block 6 are moved to while departing from fixed bar 2 follower head, loop bar 3 rear ends are upwards lifted, guide rod 5 now can be around the stressed rotation of bearing pin 9 in guide groove 4, in the time that loop bar 3 goes to fixed bar 2 in vertical state, under the effect of spring 7, guide block 6 can be pressed on the outer wall of fixed bar 2 follower head tops by nature, wrenching bar now has just been realized the bending (as shown in Figure 3) of 90 °, spanner after wrenching bar bending can be implemented the rapid pretension to target nut.When after target nut pretension, only loop bar 3 oppositely need be rotated to 90 °, under the effect of spring 5, the front end of loop bar 3 can slide on the follower head of fixed bar 2 automatically, wrenching bar just reverts to original linear state, can implement the afterburning tightening operation to target nut.

The entirety of loop bar 3 can be hollow body, can be also that leading portion is hollow body, and back segment is solid.In the present embodiment, the leading portion of loop bar 3 is hollow body, and back segment is solid.

Claims

1. a folding type ratchet spanner, comprise driving end and wrenching bar, it is characterized in that: described wrenching bar comprises the fixed bar of leading portion and the loop bar of back segment, a turnover mechanism is installed between fixed bar and loop bar, and this turnover mechanism can make the tail end shape in 90 ° bending of loop bar at fixed bar; On described driving end, two-way ratchet device is housed.

2. according to folding type ratchet spanner claimed in claim 1, it is characterized in that: described turnover mechanism is made up of guide rod, guide block, spring and locking nut, guide block is sleeved on the leading portion of guide rod and can on guide rod, slides, spring housing is contained in the back segment of guide rod, its one end is pressed on the rear end face of guide block, and the other end is fixed on the afterbody of guide rod by locking nut; The rear end of described fixed bar is provided with guide groove, and described guide rod is inserted in guide groove and is hinged by bearing pin and fixed bar, and guide rod can do 90 ° of rotations in guide groove, and described guide block is connected by bearing pin with the leading portion of loop bar.

3. according to folding type ratchet spanner claimed in claim 1, it is characterized in that: the entirety of described loop bar is hollow body.

4. according to folding type ratchet spanner claimed in claim 1, it is characterized in that: the leading portion of described loop bar is hollow body, back segment is solid.