CN208773421U - A kind of practical high-torque ratchet wrench - Google Patents

Abstract

The utility model relates to a kind of practical high-torque ratchet wrenchs, and the bell and spigot joint of card chamber and the fastening assembly set on the intracavitary portion of card are fixedly connected with including pull rod, with pull rod；The fastening assembly includes the circumferentially-spaced groove set on the card chamber adjacent inner wall junction, shipping and reselling on another market in groove and it is fixed on the clamp device on respectively shipping and reselling on another market, described one end shipped and resell on another market is flexibly connected with the lower slot bottom of groove, the other end shipped and resell on another market is pierced by groove from the upper cell wall of groove and is hinged with bayonet lock at the end shipped and resell on another market, it is equipped with the junction of bell and spigot joint for the sliding slot for sliding and radially extending of shipping and reselling on another market in described ship and resell on another market, fixed link is extended with to the center of card chamber at the top center of each inner wall of the card chamber, and the free end of each fixed link is fixedly connected to the snap ring passed through for each bayonet lock, and it is fixedly connected between each snap ring；The utility model has the beneficial effects that practical.

Description

A kind of practical high-torque ratchet wrench

Technical field

The utility model relates to the elastic equipment technical field of screw bolt, in particular to a kind of practical large torque ratchet wrench Hand.

Background technique

Ratchet spanner refers to a kind of manual screw tightening tool；It is by the main plum blossom-like sheath of different specification size and from plum blossom What set was connected by way of the negative key of hinged key and positive key occlusion.Since there are two the quincunx logical of specification for a plum-blossom sleeve tool Hole makes it can be used for the elastic of two kinds of specification screws, to expand use scope, saves raw material and work time cost. Movable trigger piece adjusts spanner and uses angle in which can be convenient.This spanner is used for the elastic operation of screw, has strong applicability, makes The characteristics of with convenient and low cost.

Currently, when screw or bolt are adjusted using ratchet spanner certain generation abrasion can be generated, in length After the use of time, when bolt is adjusted by ratchet spanner, it may appear that the phenomenon that skidding, therefore that there are practicabilities is poor Defect.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of practical large torque ratchet wrench Hand, it is intended to solve the problem in above-mentioned background technique.

The technical solution of the utility model is achieved in that a kind of practical high-torque ratchet wrench, including pull rod, special Sign is: including being fixedly connected with the pull rod and with section for the bell and spigot joint of the card chamber of " regular hexagon " and set on described Block the fastening assembly in intracavitary portion；The fastening assembly include the circumferentially-spaced groove set on the card chamber adjacent inner wall junction, Shipping and reselling on another market in groove and it is fixed on the clamp device on respectively shipping and reselling on another market, the lower slot bottom activity of described one end shipped and resell on another market and groove Connection, the other end shipped and resell on another market are pierced by groove from the upper cell wall of groove and are hinged with bayonet lock at the end shipped and resell on another market, ship and resell on another market described It is equipped with the junction of bell and spigot joint and supplies the sliding slot for sliding and radially extending of shipping and reselling on another market, it is equal at the top center of each inner wall of the card chamber It is extended with fixed link to the center of card chamber, and the free end of each fixed link is fixedly connected to the snap ring passed through for each bayonet lock, and It is fixedly connected between each snap ring；The clamp device include with ship and resell on another market the first movable plate being fixedly connected and by first turn round The second movable plate of spring and the first movable plate both sides of the edge hingedly, and each a side of second movable plate far from the first movable plate Edge extends to form the flanging of warp to the bending of the arranged on left and right sides notch of groove；Each sliding slot close to card chamber center one end with The equal length of the distance between snap ring and the bayonet lock.

It is preferred that are as follows: equal longitudinal gap is fixedly connected with several reinforcement blocks between the inner wall of the flanging.

It is preferred that are as follows: the equal longitudinal gap in junction of second movable plate and flanging is equipped with the card that section is " semicircle " Block.

It is preferred that are as follows: reinforced hole is equipped on each fixture block.

It is preferred that are as follows: the upper surface of the bell and spigot joint passes through that the second torsional spring is hinged with can axial-rotation and for bayonet lock The limited block of limit.

By using above-mentioned technical proposal: can be when being adjusted to bolt, automatically by the fastening assembly in the intracavitary setting of card The compactness with bolt cooperation is adjusted, to prevent the phenomenon that having skidded when twisting bolt, and then improves the practical of equipment Property；In more detail: card chamber can be covered when adjusting bolt in the adjustable side of bolt, and slide and respectively ship and resell on another market so that bayonet lock is caught in In each snap ring, so that the adjustable side of each clamp device and bolt is fitted close, and the fastening principle of clamp device are as follows: pass through The second movable plate of first torsional spring and the first movable plate hingedly, can be made between two the second movable plates by the torsion of torsional spring Extruding force clamps each angle of hex bolts, and when wearing, and the extruding force between two the second movable plates can be certainly Row is adjusted to the gap between hex bolts, to avoid the phenomenon that having skidded in twisting, and then improves the reality of equipment The property used；It should be understood that (one), by the purpose that the free end of the second movable plate is set as the flanging of warp be: in card chamber pair When bolt is clamped, the convenience of clamping can be improved, to further increase the practicability of equipment；(secondly), flanging inner wall Between the reinforcement block that is arranged can further improve the structural strength of flanging, to further increase clamping of the clamp device to bolt Power, and then the phenomenon that having skidded in twisting is avoided, then improve the practicability of equipment；(thirdly) and in the second movable plate The second movable plate can be improved to the chucking power of hex bolts with the fixture block of flanging junction setting, and then avoid the appearance in twisting It skids, so that the practicability of equipment is improved, and the reinforced hole being arranged on fixture block, the structural strength of fixture block can be improved；(its four), set The limited block being arranged on connector can limit bayonet lock, to further increase the fixed effect to clamp device, Jin Erti Height then improves the practicability of equipment to the fixed effect of hex bolts.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is specific embodiment of the present invention structural schematic diagram；

Fig. 2 is A in Fig. 1 to schematic diagram；

Fig. 3 is the B-B cross-sectional view in Fig. 1；

Fig. 4 is the portion the C enlarged drawing in Fig. 3；

Fig. 5 is the portion the D enlarged drawing in Fig. 4.

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 creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in fig. 1~fig. 5, the utility model discloses a kind of practical high-torque ratchet wrenchs, including pull rod 1, at this In utility model specific embodiment, including being fixedly connected with the pull rod 1 and with the card chamber 20 that section is " regular hexagon " Bell and spigot joint 2 and the fastening assembly 3 inside the card chamber 20；The fastening assembly 3 includes circumferentially-spaced set on the card The groove 30 of 20 adjacent inner wall junction of chamber, shipping and reselling on another market in groove 30 31 and are fixed on the clamp device respectively shipped and resell on another market on 31 32, described 31 one end of shipping and reselling on another market is flexibly connected with the lower slot bottom of groove 30, this ship and resell on another market 31 the other end from the upper cell wall of groove 30 It is pierced by groove 30 and is hinged with bayonet lock 34 at 31 end of shipping and reselling on another market, 31 be equipped with the junction of bell and spigot joint 2 for turning in described ship and resell on another market Pin 31 slides and the sliding slot 310 that radially extends, prolongs to the center of card chamber 20 at the top center of each inner wall of the card chamber 20 Stretching has fixed link 4, and the free end of each fixed link 4 is fixedly connected to the snap ring 40 passed through for each bayonet lock 34, and each snap ring 40 Between be fixedly connected with；The clamp device 32 includes and the first movable plate 320 that 31 are fixedly connected and by first of shipping and reselling on another market The second movable plate 322 of torsional spring 321 and 320 both sides of the edge of the first movable plate hingedly, and each second movable plate 322 is far from first The one side edge of movable plate 320 extends to form the flanging 3220 of warp to the bending of the arranged on left and right sides notch of groove；Each sliding slot 310 is equal with the length L2 of the bayonet lock 34 close to the distance between one end and the snap ring 40 at 20 center of card chamber L1.

In the utility model specific embodiment, if equal longitudinal gap is fixedly connected between the inner wall of the flanging 3220 Dry reinforcement block 3220a.

In the utility model specific embodiment, the equal longitudinal gap in junction of second movable plate 322 and flanging is set Having section is the fixture block 3221 of " semicircle ".

In the utility model specific embodiment, reinforced hole 3221a is equipped on each fixture block 3221.

In the utility model specific embodiment, the upper surface of the bell and spigot joint 2 passes through that the second torsional spring 51 is hinged with can Axial-rotation and the limited block 5 for being used to limit to bayonet lock 34.

By using above-mentioned technical proposal: can be when being adjusted to bolt, automatically by the fastening assembly in the intracavitary setting of card The compactness with bolt cooperation is adjusted, to prevent the phenomenon that having skidded when twisting bolt, and then improves the practical of equipment Property；In more detail: card chamber can be covered when adjusting bolt in the adjustable side of bolt, and slide and respectively ship and resell on another market so that bayonet lock is caught in In each snap ring, so that the adjustable side of each clamp device and bolt is fitted close, and the fastening principle of clamp device are as follows: pass through The second movable plate of first torsional spring and the first movable plate hingedly, can be made between two the second movable plates by the torsion of torsional spring Extruding force clamps each angle of hex bolts, and when wearing, and the extruding force between two the second movable plates can be certainly Row is adjusted to the gap between hex bolts, to avoid the phenomenon that having skidded in twisting, and then improves the reality of equipment The property used；It should be understood that (one), by the purpose that the free end of the second movable plate is set as the flanging of warp be: in card chamber pair When bolt is clamped, the convenience of clamping can be improved, to further increase the practicability of equipment；(secondly), flanging inner wall Between the reinforcement block that is arranged can further improve the structural strength of flanging, to further increase clamping of the clamp device to bolt Power, and then the phenomenon that having skidded in twisting is avoided, then improve the practicability of equipment；(thirdly) and in the second movable plate The second movable plate can be improved to the chucking power of hex bolts with the fixture block of flanging junction setting, and then avoid the appearance in twisting It skids, so that the practicability of equipment is improved, and the reinforced hole being arranged on fixture block, the structural strength of fixture block can be improved；(its four), set The limited block being arranged on connector can limit bayonet lock, to further increase the fixed effect to clamp device, Jin Erti Height then improves the practicability of equipment to the fixed effect of hex bolts.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (5)

1. a kind of practical high-torque ratchet wrench, including pull rod, it is characterised in that: including being fixedly connected and having with the pull rod Section is the bell and spigot joint of the card chamber of " regular hexagon " and the fastening assembly set on the intracavitary portion of card；The fastening assembly includes It is circumferentially-spaced respectively ship and resell on another market set on the groove of the card chamber adjacent inner wall junction, shipping and reselling on another market in groove and being fixed on Clamp device, described one end shipped and resell on another market are flexibly connected with the lower slot bottom of groove, which wears from the upper cell wall of groove Groove and it is hinged with bayonet lock at the end shipped and resell on another market out, is equipped with the junction of bell and spigot joint for ship and resell on another market sliding and radial direction in described ship and resell on another market The sliding slot of extension is extended with fixed link, and each fixed link to the center of card chamber at the top center of each inner wall of the card chamber Free end be fixedly connected to the snap ring passed through for each bayonet lock, and be fixedly connected between each snap ring；The clamp device packet Include with ship and resell on another market the first movable plate being fixedly connected and by the first torsional spring and the first movable plate both sides of the edge it is hinged second Movable plate, and each one side edge of second movable plate far from the first movable plate is bent to the arranged on left and right sides notch of groove and extends It is formed with the flanging of warp；Length phase of each sliding slot close to the distance between one end and the snap ring at card chamber center with the bayonet lock Deng.

2. a kind of practical high-torque ratchet wrench according to claim 1, it is characterised in that: between the inner wall of the flanging Equal longitudinal gap is fixedly connected with several reinforcement blocks.

3. a kind of practical high-torque ratchet wrench according to claim 1 or 2, it is characterised in that: second movable plate The fixture block that section is " semicircle " is equipped with the equal longitudinal gap in junction of flanging.

4. a kind of practical high-torque ratchet wrench according to claim 3, it is characterised in that: be equipped with reinforcement on each fixture block Hole.

5. a kind of practical high-torque ratchet wrench according to claim 1 or 2 or 4, it is characterised in that: the bell and spigot joint Upper surface passes through that the second torsional spring is hinged with can axial-rotation and for the limited block that limits to bayonet lock.