CN208811969U - A kind of spanner with Telescopic - Google Patents

Abstract

The utility model provides a kind of spanner with Telescopic, including the back handle that there is the front hand grip of opening and be flexibly connected with front hand grip, cavity is offered along its length in the front hand grip, the back handle includes the sliding part being slidably connected with cavity and the fixed part for being set to sliding part both ends, the cavity is equipped with internal screw thread in the end far from opening, the fixed part includes the external screw thread for being set to the one end of back handle far from front hand grip and being threadedly coupled with internal screw thread, the card slot of L shape structure is equipped in the cavity between opening and internal screw thread, the fixed part further includes being set to fixture block of the back handle far from externally threaded one end and card slot clamping, the utility model can be fixed it after pulling out back handle.

Description

A kind of spanner with Telescopic

Technical field

The utility model relates to hardware tool technical fields, and in particular to a kind of spanner with Telescopic.

Background technique

Spanner is a kind of hardware tool for the connectors such as bolt, screw rod to be fastened and unclamped.Spanner usually exists The one or both ends of shank are formed with the opening or sets of holes of grip bolt or nut, and threadingly direction of rotation applies in shank when use External force can twist bolt or nut.But in different construction environments, the spanner of different length, user are generally required Tool is needed to frequently replace, it is inconvenient for use.

In view of the above-mentioned problems, application No. is: a patent of CN201721869554.0 discloses a kind of telescopic spanner, Including front hand grip, fixes sleeve, back handle, handle, front hand grip internal thread hole, the fixing sleeve are provided on the inside of the front hand grip Cylinder side outer ring is provided with fixes sleeve outside threaded holes, is provided with fixes sleeve internal thread hole in the fixes sleeve other side, The handle side is provided with handle outside threaded holes, and the front hand grip internal thread hole and the fixes sleeve outside threaded holes cooperate, The fixes sleeve internal thread hole and the handle outside threaded holes cooperate, and the front hand grip, fixes sleeve are hollowed out in handle and set It is equipped with through-hole, the back handle is arranged in the through-hole, and the back handle other side is fixed in handle, fixes by opening Sleeve and handle threaded screw bore cooperate, and back handle is moved forward and backward in through-hole so that tool stretches.

Then above-mentioned patent document can unscrew fixes sleeve and handle threaded connection place when needing to increase the arm of force will Back handle is extracted, but will cause back handle when exerting a force to back handle so not to the fixation device of back handle after extracting With the relative motion of front hand grip, causes to have a greatly reduced quality to the force effect of fastener, therefore urgently improve.

Summary of the invention

In order to solve the above technical problems, the utility model is designed to provide a kind of spanner with Telescopic, energy It is fixed after pulling out back handle.

To achieve the above object, a kind of spanner with Telescopic of the utility model, including having the remote holder of opening Handle and the back handle being flexibly connected with front hand grip offer cavity, the back handle packet in the front hand grip along its length It includes the sliding part being slidably connected with cavity and is set to the fixed part at sliding part both ends, the cavity is set in the end far from opening There is internal screw thread, the fixed part includes the external screw thread for being set to the one end of back handle far from front hand grip and being threadedly coupled with internal screw thread, The card slot of L shape structure is equipped in the cavity between opening and internal screw thread, the fixed part further includes being set to back handle Fixture block far from externally threaded one end and card slot clamping.

Preferably, the front hand grip and back handle are carved with anti-skid chequer.

Preferably, limited block of the back handle in the extreme position for being equipped with limitation back handle with externally threaded one end.

Preferably, the limited block is detachably connected with back handle.

Preferably, the limited block and back handle Stud connection.

Alternatively, the limited block and back handle rivet.

The utility model compared with prior art, the beneficial effect is that:

Simplify overall structure, only remains front hand grip and back handle, it is lighter to be easy to carry about with one；Without using back handle When, the external screw thread of back handle is threadedly coupled with the internal screw thread of front hand grip, and the sliding part of back handle is entirely located in cavity at this time, is pulled Hand entire length is shorter, and threaded connection fastening is firm, is not easy into water, leakproofness is preferable；It needs using back handle Lengthened moment arm When, only need to rotate back handle and separate external screw thread with internal screw thread can extract sliding part, and sliding part is set close to the end being open There is fixture block, in this way when pulling out motionless back handle, rotation back handle can be clamped with the card slot of L shape structure, realize that positioning is fixed, Exert a force the complete effect that may insure to fastener again at this time, is conducive to efficiently to tighten or loosening fasteners.

Detailed description of the invention

Fig. 1 is a kind of three dimensional structure diagram of the spanner with Telescopic of the utility model；

Fig. 2 is the schematic diagram of card slot in a kind of spanner with Telescopic of the utility model；

Fig. 3 is the side view of back handle in a kind of spanner with Telescopic of the utility model；

Fig. 4 is the three dimensional structure diagram of back handle in a kind of spanner with Telescopic of the utility model.

In figure: 1, being open；2, front hand grip；3, back handle；4, cavity；5, sliding part；6, internal screw thread；7, external screw thread；8, block Slot；9, fixture block.

Specific embodiment

By the technology contents of the utility model are described in detail, construction feature, are reached purpose and efficacy, reality is hereby enumerated below It applies example and attached drawing is cooperated to be explained in detail.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical The limitation of novel protected range.

The utility model provides a kind of spanner with Telescopic, including having the front hand grip 2 and and front hand grip of opening 1 2 back handles 3 being flexibly connected, offer cavity 4 in the front hand grip 2 along its length, and the back handle 3 includes and cavity 4 sliding parts 5 being slidably connected and the fixed part for being set to 5 both ends of sliding part, the cavity 4 are equipped in the end far from opening 1 Internal screw thread 6, the fixed part include the external screw thread for being set to the one end of back handle 3 far from front hand grip 2 and being threadedly coupled with internal screw thread 6 7, the interior card slot 8 that L shape structure is equipped between opening 1 and internal screw thread 6 of the cavity 4, the fixed part further includes being set to The fixture block 9 that the one end of back handle 3 far from external screw thread 7 and card slot 8 are clamped.

By using above-mentioned technical proposal, simplify overall structure, only remains front hand grip 2 and back handle 3, it is lighter easy In carrying；When without using back handle 3, the external screw thread 7 of back handle 3 is threadedly coupled with the internal screw thread 6 of front hand grip 2, at this time after The sliding part 5 of handle 3 is entirely located in cavity 4, and spanner entire length is shorter, and threaded connection fastening is firm, is not easy into water, close Envelope property is preferable；When needing using 3 Lengthened moment arm of back handle, only need to rotate back handle 3 separates external screw thread 7 with internal screw thread 6 Sliding part 5 is extracted, sliding part 5 is equipped with fixture block 9 in the end close to opening 1, in this way when pulling out motionless back handle 3, rotates defensive position Handle 3 can be clamped with the card slot 8 of L shape structure, realize that positioning is fixed, exert a force the complete work that may insure to fastener again at this time With being conducive to efficiently to tighten or loosening fasteners.

Preferably, the front hand grip 2 and back handle 3 are carved with anti-skid chequer.

By using above-mentioned technical proposal, anti-skid chequer can increase the contact area between hand and front hand grip 2, back handle 3, from And the case where increasing frictional force, preventing rubber sleeve generation.

Preferably, the back handle 3 is equipped with the limit of the extreme position of limitation back handle 3 in one end with external screw thread 7 Block.

By using above-mentioned technical proposal, on the one hand limited block can prevent back handle 3 to be fully screwed into cavity 4 without side Just back-out, on the other hand can be set into consistent with the shape of front hand grip 2, in this way when not using back handle 3, spanner is whole outer It sees complete beautiful.

Preferably, the limited block is detachably connected with back handle 3.

It by using above-mentioned technical proposal, is detachably connected and limited block is individually dismantled, spanner convenient for assembly is simultaneously Maintenance is repaired to its inside.

Preferably, the limited block and 3 Stud connection of back handle.

By using above-mentioned technical proposal, for stud in connection, its one end screws in the part (back handle for having inner bolt hole 3) in, the other end is passed through in the part (limited block) with through-hole, the two fastening parts is made to connect into an entirety, this company The form of connecing is known as Stud connection, belongs to and is detachably connected, and being mainly used for one of connected part, thickness is larger, requires structure tight It gathers, or because dismantling frequently, the occasion that should not be connected by screw bolts.

Alternatively, the limited block and back handle 3 rivet.

By using above-mentioned technical proposal, the advantages of riveting is: connection deformation is small, requires JA(junction ambient) low, has wind to have Water have oil etc. can connection construction, be particularly suitable for thin pieces connection.

In conclusion the preferred embodiment of only the utility model, does not limit the protection scope of the utility model with this, it is all Equivalent changes and modifications made according to the scope of the patent of the utility model and the content of the manual are all what the utility model patent covered Within the scope of.

Claims (6)

1. a kind of spanner with Telescopic, including having the front hand grip being open and the back handle being flexibly connected with front hand grip, It is characterized by: offering cavity in the front hand grip along its length, the back handle includes being slidably connected with cavity Sliding part and the fixed part for being set to sliding part both ends, the cavity are equipped with internal screw thread, the fixation in the end far from opening Portion includes the external screw thread for being set to the one end of back handle far from front hand grip and being threadedly coupled with internal screw thread, in the cavity opening with Between internal screw thread be equipped with L shape structure card slot, the fixed part further include be set to back handle far from externally threaded one end with The fixture block of card slot clamping.

2. a kind of spanner with Telescopic according to claim 1, it is characterised in that: the front hand grip and back handle It is carved with anti-skid chequer.

3. a kind of spanner with Telescopic according to claim 2, it is characterised in that: the back handle is outside having One end of screw thread is equipped with the limited block of the extreme position of limitation back handle.

4. a kind of spanner with Telescopic according to claim 3, it is characterised in that: the limited block and back handle It is detachably connected.

5. a kind of spanner with Telescopic according to claim 4, it is characterised in that: the limited block and back handle Stud connection.

6. a kind of spanner with Telescopic according to claim 4, it is characterised in that: the limited block and back handle Riveting.