CN209478061U - It is a kind of to use labour-saving T-wrench - Google Patents

Abstract

Labour-saving T-wrench is used the utility model discloses a kind of, including pulling body, bull stick and handle, it is described to pull body, bull stick and handle are arranged successively from top to bottom, the bottom of the bull stick is fixedly connected with the surface of handle, the surface fixing sleeve for pulling body is connected to first bearing, the outer wall fixing sleeve of the first bearing is connected to protecting box, the bottom for pulling body is fixedly connected through protecting box and with the upper surface of driven gear, the driven gear is located at the inside of protecting box, the top and bottom of the protecting box inner wall are flexibly connected with the both ends of shaft respectively, the shaft is located at the right side of driven gear, the surface of shaft has been fixedly attached sprocket, sprocket is engaged with driven gear, the lower surface of protecting box is inlaid with second bearing.The utility model solves most of T-wrench and lacks a kind of effort-saving mechanism by setting driving gear, transmission gear, sprocket and driven gear, so that problem more laborious when rotation T-wrench.

Description

It is a kind of to use labour-saving T-wrench

Technical field

The utility model relates to extracting tool technical fields, specially a kind of to use labour-saving T-wrench.

Background technique

Spanner is a kind of common extracting tool, is to twist bolt, nut or other screw threads using lever principle tightly to hold admittedly The hand tools of part, application is very extensive, and T-wrench is one kind of spanner, it is by the sleeve with hexagonal or 12 corner apertures, hand The attachmentes such as handle and extension bar composition, especially suitable for twist space it is very narrow or recess very deep bolt or nut.

T-wrench common at present is covered sleeve on bolt or nut, and threadingly rotation direction applies outer in shank Power, can twist bolt or nut, but most of T-wrench lacks a kind of effort-saving mechanism so that rotation T-wrench compared with Arduously.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of using labour-saving T-wrench, solves mostly Several T-wrenches lacks a kind of effort-saving mechanism, so that problem more laborious when rotation T-wrench.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions: it is a kind of using labour-saving T-wrench, including Body, bull stick and handle are pulled, body, bull stick and the handle pulled is arranged successively from top to bottom, the bottom of the bull stick and the table of handle Face is fixedly connected, and the surface fixing sleeve for pulling body is connected to first bearing, and the outer wall fixing sleeve of the first bearing is connected to protection Box, the bottom for pulling body are fixedly connected through protecting box and with the upper surface of driven gear, and the driven gear is located at protection The top and bottom of the inside of box, the protecting box inner wall are flexibly connected with the both ends of shaft respectively, and the shaft is located at driven The right side of gear, the surface of the shaft have been fixedly attached sprocket, and the sprocket is engaged with driven gear, the protecting box Lower surface be inlaid with second bearing, the inner wall of the second bearing is fixedly connected with the surface of bull stick, the surface of the bull stick Fixing sleeve is connected to driving gear, and the driving gear is located at the inside of protecting box, and driving gear be located at driven gear just under Side, the bottom movable inlaying of the protecting box inner wall have pin shaft, and the pin shaft is located at the centre of driving gear and sprocket, described The surface fixing sleeve of pin shaft is connected to transmission gear, and the transmission gear is engaged with driving gear and sprocket respectively.

Preferably, the top and bottom of the protecting box inner wall open up fluted, the surface of the shaft and groove Both ends are flexibly connected.

Preferably, the bottom of the protecting box inner wall offers through-hole, the inner wall of the through-hole and the surface activity of pin shaft Connection.

Preferably, the both ends of the handle offer sliding slot, and the internal activity of the sliding slot is connected with motion bar.

Preferably, the motion bar is T-shaped, and the shape of the sliding slot is adapted with the shape of motion bar.

Preferably, the upper surface of the motion bar offers limit hole, and the limit hole is located at the outside of sliding slot, the limit The inside in position hole is connected with spring and limited block respectively, the both ends of the spring respectively with the bottom of through-hole wall and limit The bottom of block is fixedly connected.

(3) beneficial effect

The utility model provide it is a kind of use labour-saving T-wrench, have it is following the utility model has the advantages that

(1), the utility model grasps protection by setting driving gear, transmission gear, sprocket and driven gear Box simultaneously applies external force on handle, and handle drives bar rotation, so that driving gear rotates, driving gear is nibbled with transmission gear It closes, so that transmission gear rotates, transmission gear is engaged with sprocket, so that sprocket rotates, sprocket is engaged with driven gear, So that driven gear rotates, body rotation is pulled in driven gear drive, is twisted to nut or bolt, one circle of driving gear rotation When, driven gear rotates half-turn, and driving gear, transmission gear, sprocket and driven gear mutual cooperation constitute a kind of lever Transmission mechanism has reached labour-saving effect, has solved most of T-shaped and pull so that less power is only needed to can be rotated bull stick Hand lacks a kind of effort-saving mechanism, so that problem more laborious when rotation T-wrench.

(2), for the utility model by setting handle and motion bar, the inner wall for pushing motion bar to make sliding slot squeezes limited block, Limited block squeezes spring and moves downwardly into limit hole, and motion bar continues to move towards the direction of bull stick, so that motion bar is naked It is exposed at the length outside sliding slot to shorten, reduces the volume of T-wrench, convenient for storage.

Detailed description of the invention

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is schematic enlarged-scale view at A in the utility model Fig. 1；

Fig. 3 is schematic enlarged-scale view at B in the utility model Fig. 1.

In figure: 1 pulls body, 2 bull sticks, 3 handles, 4 first bearings, 5 protecting box, 6 driven gears, 7 shafts, 8 sprockets, 9 Two bearings, 10 driving gears, 11 pin shafts, 12 transmission gears, 13 grooves, 14 through-holes, 15 sliding slots, 16 motion bars, 17 limit holes, 18 Spring, 19 limited blocks.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1-3, the utility model provides a kind of technical solution: it is a kind of to use labour-saving T-wrench, including pull Body 1, bull stick 2 and handle 3 are pulled body 1, bull stick 2 and handle 3 and are arranged successively from top to bottom, the bottom of bull stick 2 and the surface of handle 3 It is fixedly connected, the surface fixing sleeve for pulling body 1 is connected to first bearing 4, and the outer wall fixing sleeve of first bearing 4 is connected to protecting box 5, pulls body 1 bottom is fixedly connected through protecting box 5 and with the upper surface of driven gear 6, and driven gear 6 is located at the inside of protecting box 5, is protected The top and bottom of shield 5 inner wall of box open up fluted 13, and the inner wall of groove 13 is flexibly connected with the both ends of shaft 7, and shaft 7 In the right side of driven gear 6, the surface of shaft 7 has been fixedly attached sprocket 8, and shaft 7 plays the role of supporting sprocket 8, tooth Wheel post 8 is engaged with driven gear 6, and the lower surface of protecting box 5 is inlaid with second bearing 9, and first bearing 4 and second bearing 9 cooperate So that protecting box 5 will not rotate when nail spanner rotates, the inner wall of second bearing 9 is fixedly connected with the surface of bull stick 2, is turned The surface fixing sleeve of bar 2 is connected to driving gear 10, and driving gear 10 is located at the inside of protecting box 5, and driving gear 10 be located at from The underface of moving gear 6, the bottom of 5 inner wall of protecting box offer through-hole 14, the inner wall of through-hole 14 and the surface activity of pin shaft 11 Connection, pin shaft 11 are located at the centre of driving gear 10 and sprocket 8, and the surface fixing sleeve of pin shaft 11 is connected to transmission gear 12, pin Axis 11 plays the role of supporting transmission gear 12, and transmission gear 12 is engaged with driving gear 10 and sprocket 8 respectively, driving gear It can be rotated with nutating gear 12 when 10 rotation, transmission gear 12 drives sprocket 8 to rotate, and sprocket 8 can band when rotating Dynamic driven gear 6 rotates, and the both ends of handle 3 offer sliding slot 15, and the internal activity of sliding slot 15 is connected with motion bar 16, activity Bar 16 is T-shaped, and the shape of sliding slot 15 is adapted with the shape of motion bar 16, and the upper surface of motion bar 16 offers limit hole 17, Limit hole 17 is located at the outside of sliding slot 15, and the inside of limit hole 17 is connected with spring 18 and limited block 19, spring 18 respectively Both ends be fixedly connected respectively with the bottom of the bottom of 14 inner wall of through-hole and limited block 19, a part of of motion bar 16 can enter In sliding slot 15, reduce the volume of entire T-wrench, convenient for storage.

When in use, motion bar 16 is extracted out from sliding slot 15, the inner wall of sliding slot 15 squeezes limited block 19, limited block 19 with Motion bar 16 away from bull stick 2 direction move, when limited block 19 reach sliding slot 15 in narrower region when, sliding slot 15 it is interior Wall squeeze limited block 19 so that limited block 19 along the inner wall of limit hole 17 move downward squeeze spring 18, limited block 19 with When motion bar 16 continues to move to 15 outside of sliding slot to the direction far from bull stick 2, tension force effect of the limited block 19 in spring 18 Lower recovery limits motion bar 16, will pull 1 set of body on bolt or nut, grasp protecting box 5 simultaneously to initial position Threadingly rotation direction applies external force on the handle 3, and handle 3 drives bull stick 2 to rotate, so that driving gear 10 rotates, driving tooth Wheel 10 is engaged with transmission gear 12, so that transmission gear 12 rotates, transmission gear 12 drives pin shaft 11 to rotate in through-hole 14, is passed Moving gear 12 is engaged with sprocket 8, so that sprocket 8 rotates, sprocket 8 drives inner rotation of the shaft 7 in groove 13, gear Column 8 is engaged with driven gear 6, so that driven gear 6 rotates, the rotation of body 1 is pulled in the drive of driven gear 6, can twist bolt or spiral shell Mother is cooperated by first bearing 4 and second bearing 9 so that protecting box 5 will not when nail spanner rotates when grasping protecting box 5 It rotates, driving gear 10 drives driven gear 6 to rotate by transmission gear 12 and sprocket 8, the rotation of driving gear 10 one When circle, driven gear 6 rotates half-turn, and driving gear 10, transmission gear 12, sprocket 8 and the mutual cooperation of driven gear 6 constitute A kind of laborsaving lever transmission mechanism can be calculated the power that the mechanism has saved half according to lever principle.

It can to sum up obtain, the utility model passes through setting driving gear 10, transmission gear 12, sprocket 8 and driven gear 6, It solves most of T-wrench and lacks a kind of effort-saving mechanism, so that problem more laborious when rotation T-wrench.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of use labour-saving T-wrench, including pulls body (1), bull stick (2) and handle (3), described to pull body (1), bull stick (2) It is arranged successively from top to bottom with handle (3), the bottom of the bull stick (2) is fixedly connected with the surface of handle (3), and feature exists In: the surface fixing sleeve for pulling body (1) is connected to first bearing (4), and the outer wall fixing sleeve of the first bearing (4) is connected to protection Box (5), the bottom for pulling body (1) is fixedly connected through protecting box (5) and with the upper surface of driven gear (6), described driven Gear (6) is located at the inside of protecting box (5), and the top and bottom of protecting box (5) inner wall are living with the both ends of shaft (7) respectively Dynamic connection, the shaft (7) are located at the right side of driven gear (6), and the surface of the shaft (7) has been fixedly attached sprocket (8), The sprocket (8) is engaged with driven gear (6), and the lower surface of the protecting box (5) is inlaid with second bearing (9), and described The inner wall of two bearings (9) is fixedly connected with the surface of bull stick (2), and the surface fixing sleeve of the bull stick (2) is connected to driving gear (10), the driving gear (10) is located at the inside of protecting box (5), and driving gear (10) be located at driven gear (6) just under Side, the bottom movable inlaying of protecting box (5) inner wall have pin shaft (11), and the pin shaft (11) is located at driving gear (10) and tooth The surface fixing sleeve of the centre of wheel post (8), the pin shaft (11) is connected to transmission gear (12), the transmission gear (12) respectively with Driving gear (10) and sprocket (8) engagement.

2. a kind of use labour-saving T-wrench according to claim 1, it is characterised in that: protecting box (5) inner wall Top and bottom open up fluted (13), the inner wall of the groove (13) is flexibly connected with the both ends of shaft (7).

3. a kind of use labour-saving T-wrench according to claim 1, it is characterised in that: protecting box (5) inner wall Bottom offer through-hole (14), the inner wall of the through-hole (14) is connect with the surface activity of pin shaft (11).

4. a kind of use labour-saving T-wrench according to claim 1, it is characterised in that: the both ends of the handle (3) It offers sliding slot (15), the internal activity of the sliding slot (15) is connected with motion bar (16).

5. a kind of use labour-saving T-wrench according to claim 4, it is characterised in that: the motion bar (16) is in T The shape of type, the sliding slot (15) is adapted with the shape of motion bar (16).

6. it is according to claim 4 it is a kind of use labour-saving T-wrench, it is characterised in that: the motion bar (16) it is upper Surface offers limit hole (17), and the limit hole (17) is located at the outside of sliding slot (15), the inner part of the limit hole (17) Be not connected with spring (18) and limited block (19), the both ends of the spring (18) respectively with the bottom of through-hole (14) inner wall and The bottom of limited block (19) is fixedly connected.