CN104742054A

CN104742054A - Wrench capable of clamping bolt head

Info

Publication number: CN104742054A
Application number: CN201510182696.9A
Authority: CN
Inventors: 杨珂
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-17
Filing date: 2015-04-17
Publication date: 2015-07-01
Anticipated expiration: 2035-04-17
Also published as: CN104742054B

Abstract

The invention relates to a wrench capable of clamping a bolt head. The wrench comprises a knife handle, a clamping device is arranged at the front end of the knife handle and comprises a groove, two sliding rails and a clamping rod, the groove is formed in the front end of the knife handle and longitudinally extends along the knife handle, the two sliding rails are arranged on two sides of the inner wall of the groove respectively, the clamping rod is arranged on the outer side of the groove, a chamfer is arranged at the front end of the clamping rod, an overhead hook is arranged at the rear end of the clamping rod, a projection projecting towards a magnet is arranged in the middle of the clamping rod, a cylindrical sliding rod is mounted on a circular hole in the projection of the clamping rod, the knife handle is gradually recessed inwards and backwards from the rear half section of the groove to form a hold-down groove, a spring is arranged in the hold-down groove and connected with the knife handle through a fixing column, a clamp groove is formed in the knife handle behind the spring, and the size and the shape of the clamp groove are matched with those of the overhead hook. The wrench has the advantages that the wrench is simple in structure and fine in fastening effect, fasteners are convenient and reliable in installation and detachment, and gaps among the fasteners and fastened objects are omitted when bolts and nuts are installed.

Description

A kind of can the spanner of fishbolt head

Technical field

The present invention relates to hand-operated tools technical field, specifically a kind of can the spanner of fishbolt head.

Background technology

In prior art, when using common wrench demounting bolt or polygonal hook bolt, often because bolt head is capped, or screw thread and institute's securing objects loose contact, cause taking off securing member and become difficult.In order to address this problem, generally adopt the magnetic instrument of band at present, but being with magnetic instrument magnetic limited strength, being difficult to effectively adsorb securing member thus help it to take out.In addition, when securing members such as construction bolt nuts, if having bar or gap between securing member and institute's securing objects, then can not tight a bolt, cause fastening effect bad.

Summary of the invention

Technical problem to be solved by this invention is that solving existing instrument is difficult to effectively adsorb securing member, can not the technical deficiency of effective fishbolt, there is provided a kind of structure simple, can fishbolt head, there is not gap between securing member and institute's securing objects when making securing member mount and dismount convenient and reliable, construction bolt or nut, to tight a bolt, spanner that fastening effect is good.

Technical problem to be solved by this invention realizes by the following technical solutions:

Can the spanner of fishbolt head, comprise handle of a knife, be arranged at the handle at handle of a knife rear portion, be arranged at handle of a knife front end in the middle of keyhole and be positioned at the magnet of keyhole inside; Described handle of a knife front end is provided with clamping device, and described clamping device comprises groove, two slide rails and clamping bar, and described groove is located at handle of a knife front end, extending longitudinally along handle of a knife; The both sides of groove inner wall are located at respectively by two slide rails; Described clamping bar is located at outside groove, clamping bar front end is provided with chamfering, rear end is provided with barb, middle part be provided with to magnet direction protrude raised, circular hole is provided with in projection, described chamfering is the hook-shaped protrusion protruded to handle of a knife central axial direction, and described barb is the hook-shaped protrusion to protruding away from handle of a knife central axial direction; Circular hole in clamping bar projection is provided with columniform slide bar, and slide bar is stuck in the slide rail of corresponding recesses; From the groove second half section, handle of a knife caves inward gradually backward and forms pressure holding groove, be provided with spring in pressure holding groove, spring is located at inside clamping bar, is connected with handle of a knife by fixed leg, be provided with draw-in groove in the handle of a knife at spring rear, the size and shape of draw-in groove and the size and shape of barb match.

The effect of described slide bar is fixed in the groove of handle of a knife by clamping bar; Described clamping bar can be retreated with sliding bar and be snapped in draw-in groove by afterbody barb and be fixed on handle of a knife, can rotate, chamfering is opened when chamfering stretches out slide rail around slide bar; After described chamfering is opened, stop pressing clamping bar clamping bar can be made to recover the state of chamfering to inside fastening by spring action.During demounting bolt, first press clamping bar rear end, now chamfering is opened, and keyhole is aimed at bolt head, and front pushing away makes it be adsorbed in inner magnet; Unclamp clamping bar, under the action of the spring, chamfering sets back and clamping bolt head; Now by handle, external force is applied to it, handle is rotated around handle of a knife central axis, just can twist bolt, exert oneself backward simultaneously, it can be taken out from followed closely object; After taking-up, again pressing clamping bar can take off bolt from the present invention.The present invention is by the spring that arranges in the chamfering that arranges on clamping bar, pressure holding groove, the magnet arranging keyhole and arrange in keyhole inside in the middle of handle of a knife front end, can the effective securing member such as fishbolt, to outward winding easily the bolt taking off and skidded by the bolt covered or screw thread, make disassembling section become simple.The draw-in groove matched with barb size shape is provided with in handle of a knife again due to spring rear of the present invention, can barb be stuck in draw-in groove, effectively prevent obstruction and the interference of chamfering during construction bolt, make gapless between bolt head and securing member, can tight a bolt when construction bolt.

Further, the quantity of described clamping device is two, and symmetrical relative to handle of a knife central axis.Its advantage is convenient to firmly, securing member stressed more even, and disassembling section is convenient.

Further, described handle and handle of a knife are hinged by jointed shaft, and the quantity of handle is two, and two handles are symmetrical relative to handle of a knife central axis, and in use procedure, handle and handle of a knife hinged place can rotate around jointed shaft.

Further, the shape of described keyhole and the shape of bolt head that matches with keyhole are regular polygon.

Compared with existing spanner, the present invention has following outstanding advantage and technique effect:

1) can outward winding easily and take off the bolt that bolt head skidded by the bolt covered or screw thread;

2) chamfering of clamping bar front end can be retracted when tighting a bolt, prevent chamfering from hindering operation.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is that the A of Fig. 1 is to schematic diagram;

Fig. 3 is that chamfering of the present invention is opened and handle open mode schematic diagram;

In figure: 1 handle of a knife; 11 slide bars; 12 slide rails; 13 draw-in grooves; 14 keyholes; 2 clamping bars; 21 chamferings; 22 projections; 23 barbs; 31 magnet; 32 fixed legs; 33 springs; 34 jointed shafts; 4 handles; 41 handles one; 42 handles two; 5 bolts; 51 bolt heads.

Detailed description of the invention

The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment and diagram, setting forth the present invention further.

As Figure 1-3, a kind of can the spanner of fishbolt head, comprise handle of a knife 1, be arranged at the handle 4 at handle of a knife rear portion, be arranged at handle of a knife 1 front end in the middle of keyhole 14 and the magnet 31 of keyhole inside, handle 1 comprises handle 1 and handle 2 42, handle of a knife 1 front end is provided with clamping device, described clamping device structure comprises groove, two slide rails 12 and clamping bar 2, described groove is arranged on handle of a knife 1 front end, extending longitudinally along handle of a knife 1, groove inner wall both sides are respectively provided with one slide rail 12, clamping bar 2 is located at outside groove, clamping bar 2 leading portion is provided with chamfering 21, rear end is provided with barb 23, middle part is provided with protrude to magnet direction raised 22, circular hole is provided with in projection 22, described chamfering 21 is the hook-shaped protrusion protruded to handle of a knife central axial direction, described barb 23 is the hook-shaped protrusion to protruding away from handle of a knife central axial direction, circular hole in clamping bar projection is provided with columniform slide bar 11, slide bar is stuck in the slide rail of corresponding recesses, from the groove second half section, handle of a knife caves inward gradually backward and forms pressure holding groove, be provided with spring 33 in pressure holding groove, spring 33 is located at inside clamping bar, is connected with handle of a knife by fixed leg 32, be provided with draw-in groove 13 in the handle of a knife at spring rear, the size and shape of draw-in groove and the size and shape of barb match.

In the present embodiment, the shape of keyhole 14 is polygon; Clamping device is provided with two, and symmetrical relative to handle of a knife 1 central axis; Described handle 4 is undertaken hinged with handle of a knife 1 by jointed shaft 34, symmetrical relative to handle of a knife 1 central axis, and in use procedure, handle 4 and handle of a knife 1 hinged place can rotate around jointed shaft 34.

Described clamping bar 2 can be slided to retreat and snapped in draw-in groove 13 by afterbody barb 23 with slide bar 11 and be fixed on handle of a knife 1, can rotate, chamfering 21 is opened when chamfering 21 stretches out groove around the slide bar 11 playing fixation; After described chamfering 21 is opened, stop pressing clamping bar 2 clamping bar 2 can be made to recover the state of chamfering 21 to inside fastening by spring 33 effect.

The method of demounting bolt:

First press clamping bar 2 rear end, as shown in Figure 3, Leading end chamfer 21 is opened, keyhole 14 is aimed at nut 51, front pushing away makes it be adsorbed in inner magnet 31; Unclamp clamping bar 2, under the effect of spring 33, chamfering 21 sets back and clamping bolt head 51; Open handle 1, handle 2 42 to being 150 ° with handle of a knife central axis keyhole direction, and apply external force to it, handle 4 is rotated around handle of a knife 2 central axis, just can twist bolt 5, while, exerts oneself backward, it can be taken out from followed closely object; After taking-up, again pressing clamping bar 2 can take off bolt 5 from the present invention.

The method of construction bolt:

Pressing clamping bar 2 rear end also pulls back, and makes it slide backward along slide rail 12 with slide bar 11, until the chamfering 21 of clamping bar 2 is retracted in the draw-in groove 13 on handle of a knife 1, unclamps clamping bar 2 and makes it clamp under spring 33 with the effect of draw-in groove 13; Bolt head 51 is aimed at keyhole 14 and is adsorbed in after on magnet 31 wherein; Open handle 4 and external force is applied to it, handle 4 is rotated around handle of a knife 2 central axis, can construction bolt 5.

More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims

1. can the spanner of fishbolt head, it is characterized in that: comprise handle of a knife, be arranged at the handle at handle of a knife rear portion, be arranged at handle of a knife front end in the middle of keyhole and be positioned at the magnet of keyhole inside; Described handle of a knife front end is provided with clamping device, and described clamping device comprises groove, two slide rails and clamping bar, and described groove is located at handle of a knife front end, extending longitudinally along handle of a knife; The both sides of groove inner wall are located at respectively by two slide rails; Described clamping bar is located at outside groove, clamping bar front end is provided with chamfering, rear end is provided with barb, middle part be provided with to magnet direction protrude raised, circular hole is provided with in projection, described chamfering is the hook-shaped protrusion protruded to handle of a knife central axial direction, and described barb is the hook-shaped protrusion to protruding away from handle of a knife central axial direction; Circular hole in clamping bar projection is provided with columniform slide bar, and slide bar is stuck in the slide rail of corresponding recesses; From the groove second half section, handle of a knife caves inward gradually backward and forms pressure holding groove, be provided with spring in pressure holding groove, spring is located at inside clamping bar, is connected with handle of a knife by fixed leg, be provided with draw-in groove in the handle of a knife at spring rear, the size and shape of draw-in groove and the size and shape of barb match.

2. according to claim 1 a kind of can the spanner of fishbolt head, it is characterized in that, the shape of described keyhole and the shape of bolt head matched with keyhole are regular polygon.

3. according to claim 1 a kind of can the spanner of fishbolt head, it is characterized in that, the quantity of described clamping device is two, and two clamping devices are symmetrical relative to handle of a knife central axis.

4. a kind of according to any one of claim 1-3 can the spanner of fishbolt head, and it is characterized in that, described handle and handle of a knife are hinged by jointed shaft.

5. according to claim 4 a kind of can the spanner of fishbolt head, it is characterized in that, the quantity of handle is two, and two handles are symmetrical relative to handle of a knife central axis.