CN2317998Y

CN2317998Y - Improved tool joint for loading and unloading fastener

Info

Publication number: CN2317998Y
Application number: CN 97230144
Authority: CN
Inventors: 董见林
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-12
Filing date: 1997-12-12
Publication date: 1999-05-12
Anticipated expiration: 2007-12-12

Abstract

The utility model relates to an improved tool joint for loading and unloading a fastener, which comprises a sleeve barrel section, a driving head, a rotation head and an adjusting nut, A resisting sleeve ring is inserted in the outside wall of the front of a circular hollow sleeve barrel of the sleeve barrel section, a C-shaped ring is respectively inserted in the inside wall of the front and back ends of the sleeve barrel, a bottom cover is screwed on the end of the sleeve barrel, the front end of the driving head is provided with a containing hole for containing a compression spring, the rear side end of the driving head is provided with a screw rod, and a driving end is formed on the end of the screw rod. The rotation head is matched with the sleeve barrel in a rotary mode, the front end of the rotation head is provided with a rotation end, the adjusting nut is screwed on the screw rod of the driving head, and the forward movement of the driving head can be limited. By using the movement of the adjusting nut, the process of the screw connection of screws can be adjusted.

Description

The tool-joint that is used to load and unload securing member of improvement

The utility model relates to a kind of hand-operated tools, refers to a kind of tool-joint that is used to load and unload securing member of improvement especially.

All use a kind of electricity (gas) to start instrument during general quick loading and unloading screw (bolt), and the front end of this hand-held tool is to be connected a joint 10 (as shown in Figure 1), and utilizes the front end of joint 10 to embed screw (bolt) 20 heads and carry out loading and unloading; Yet, when this screw (bolt) 20 is screwed together in working substance (or nut), must lock appropriate depth, make it have a suitable tightness, to avoid screw (bolt) 20 to get loose because of vibration or other factors, and general operation person locks the depth distance of working substance (or nut) at control screw (bolt) 20, be to judge whether to stop to screw togather with the sound visual or that experience or electricity (gas) instrument of starting that screws togather rotates, so this screw (bolt) 20 often have locks tension or too the situation of pine take place, and then take place working substance forced and damage or shortcoming that screw (bolt) 20 gets loose; Again, screwed togather screw (bolt) at 20 o'clock, specially the situation (as: preparation process of doughnut, sealed large-scale groups mould assembling etc. is installed) that screw (bolt) 20 is not screwed and reserve a spacing is also arranged, if utilize electricity (gas) start execution of instrument this when screwing togather operation, because of the rotation of this instrument quite quick, can't control smoothly and reserve a spacing, and increase the difficulty that screws togather operation.

Because after existing loading and unloading screw (bolt) electricity consumption (gas) the instrument front end of starting is connected a joint, therefore the degree of depth that uncontrollable screw (bolt) screws togather, so that produce above-mentioned shortcoming, to the operation that screws togather of existing securing member, remains further necessity of improvement in fact.

The purpose of this utility model is to provide a kind of stroke that screw (bolt) screws togather of setting, to lock appropriate depth and to satisfy the tool-joint that is used to load and unload securing member of the improvement of different sealed tightness demands.

The utility model is for reaching its creation purpose, technological means of being used such as following institute:

A kind of tool-joint that is used to load and unload securing member of improvement, it is to be constituted by sleeve part, driving head, turn head and adjustment nut, wherein: sleeve part, it is that barrel forward end outer side surface in a circular hollow is embedded one and keeps out the collar, the front end interior sidewall surface then is embedded C shape ring, the rear inside wall of sleeve is embedded with C shape ring equally, establishes a bottom in the terminal spiral shell of sleeve again, and the central authorities of this bottom are provided with a circular hole; Described driving head, but its front end is provided with the voltage supply ccontaining containing hole of spring that contracts, and be provided with the drive lugs of a plurality of protrusions in the containing hole outer rim, the rear side end of driving head then extends a screw rod, the terminal driving end that forms of screw rod, this screw rod can run through the circular hole of bottom, and makes driving head can not break away from sleeve by keeping out of C shape ring; Described turn head, it can be mounted in the sleeve front side end, and with sleeve for being rotatably assorted, and make its sleeve that can't come off by keeping out of C shape ring, the front end of this turn head is provided with the turn end that meets the screw head shape, but terminal then be provided with the voltage supply ccontaining containing hole of spring that contracts, be provided with the turn projection of a plurality of protrusions in the containing hole outer rim; Described adjustment nut, its spiral shell are located on the screw rod of driving head, can do one spacing to the reach of driving head.

By above-mentioned structure, it is to utilize the mobile adjustment of adjusting nut, and makes driving head have the spacing effect of reach, and changes the distance of moving behind the turn head, and then can adjust the stroke that screw screws togather.

Now be described in detail as follows for an embodiment and conjunction with figs.:

Fig. 1 starts the joint of instrument and uses schematic diagram for commonly using electricity (gas).

Fig. 2 is a perspective exploded view of the present utility model.

Fig. 3 is an insight structural map of the present utility model.

Fig. 4 is the action schematic diagram (adjust nut do not adjust) of the utility model before to screw closure.

Fig. 5 is the action schematic diagram (adjust nut do not adjust) of the utility model after to screw closure.

Fig. 6 is the action schematic diagram (adjust nut adjustment after) of the utility model before to screw closure.

Fig. 7 is the action schematic diagram (adjust nut adjustment after) of the utility model after to screw closure.

Fig. 8 is the schematic diagram of another turn head of the present utility model.

Please consult Fig. 2,3 earlier, the utility model is by sleeve part 30, driving head 40, turn 50 and adjust nut 60 and constitute, wherein:

Sleeve part 30, it is that sleeve 31 front end outer side surfaces in a circular hollow are embedded one and keep out the collar 32, the front end interior sidewall surface then is provided with an annular groove 33 and can be embedded for C shape ring 34, the rear inside wall of sleeve 31 is corresponding to be provided with an annular groove 35 and also can to supply C shape ring 36 be embedded, establish a bottom 37 in the terminal spiral shell of sleeve 31 again, the central authorities of this bottom 37 are provided with a circular hole 38.

Driving head 40, but its front end is provided with the voltage supply ccontaining containing hole 42 of spring 41 that contracts, and be provided with the drive lugs 43 of a plurality of protrusions in containing hole 42 outer rims, and the rear side end of driving head 40 then extends a screw rod 44, and screw rod 44 is terminal to be formed one and can be connected electricity (gas) and start the driving end 45 of instrument front end; The screw rod 44 of this driving head 40 can run through the circular hole 38 of sleeve part 30 bottoms 37, and makes driving head 40 can not break away from sleeve 31 by keeping out of C shape ring 36.

Turn 50, it just can be mounted in sleeve 31 front side end, and can be in its inner rotation, and make its sleeve 31 that can't come off by keeping out of C shape ring 34, and the front end of turn 50 is provided with the turn end 51 that matches with screw 20 nose shapes, but terminal then be provided with the voltage supply ccontaining containing hole 52 of spring 41 that contracts, and be provided with the turn projection 53 of some protrusions in containing hole 52 outer rims.

Adjust nut 60, it is that spiral shell is located on the screw rod 44 of driving head 40, and can carry out spacing to the reach of driving head 40.

Please consult Fig. 4 simultaneously, 5,6, when using the utility model desire that screw 20 is screwed together in working substance 70 (as shown in Figure 4), it is the front end of the instrument of earlier the driving end 45 linking electricity (gas) of driving head 40 being started, the application of force is with driving head 40 roof pressure forward again, be locked on the most inboard of screw rod 44 owing to adjust nut 60, driving head 40 can't be moved forward and 30 reaches of interlock sleeve part, when sleeve part 30 reaches, the resistance of turn 50 coping screw 20 and it is contracted backward move, make the turn projection 53 of turn 50 and the drive lugs 43 mutual clips of driving head 40, this driving head 40 can by the electricity (gas) start instrument transmission and make its rotation, and and then drive turn 50 rotation, it is locked screw 20 in the working substance 70, that treats sleeve part 30 keeps out the collar 32 when conflicting to working substance 70 (as shown in Figure 5), even sleeve part 30, driving head 40 can't move forward, but still continue to make turn 50 rotation, this turn 50 also continues reach because of the roof pressure of compression spring 41 makes turn 50, after turn projection 53 and drive lugs 43 break away from, turn 50 just stops operating, also stop screw 20 is screwed togather operation, this moment screw 20 to be locked on working substance 70 be to be the state of reserving a spacing; In addition, to adjust nut 60 transfers when moving (as shown in Figure 6) backward, because adjusting between nut 60 and the bottom 37 is to have an extendable room, the spacing that can move forward when driving head 40 is exerted pressure forward makes 30 reaches of moving sleeve portion again, and continues the above-mentioned operation that screws togather, that treats sleeve part 30 keeps out the collar 32 when conflicting to working substance 70 (as shown in Figure 7), this turn 50 is because the roof pressures of compression spring 41, makes after turn projection 53 and drive lugs 43 break away from, and turn 50 just stops operating; In view of the above, transfer the reason of moving backward because of adjusting nut 60, make driving head 40 have the space of a reach, the distance of moving after the turn 50 is reduced, and then screw 20 more is packed on the working substance 70, and the degree of packing can have it and set the effect that screw 20 screws togather stroke by adjusting the distance decision of adjusting nut 60 front and back.

(seeing also Fig. 8) in addition, related screw 20 heads of the utility model are to be hexagonal shape, it is a preferred embodiment of the present utility model, for making the utility model be applicable to a greater variety of screws (bolt) head (as: square head bolts head, cross flute profile screw terminal, flat recess shape screw terminal, hex bolts or the like), it can be established with the screw chimeric with desire (bolt) shape that head is identical at the front end of turn 50.

From the above and embodiment shown in the drawings as can be known, the utility model mainly is to utilize the mobile adjustment of adjusting nut 60, and make driving head 40 have the effect of reach, make the distance reduction that moves after the turn 50, can adjust the stroke that screw 20 screws togather, like this, technological means that the utility model used and structure thereof really can reach its intended purposes, and have the practicality of raising product and the effect of progressive, and it is really unprecedented, so meet the utility model patent important document.

Claims

A kind of tool-joint that is used to load and unload securing member of improvement is characterized in that, is to constitute by sleeve part, driving head, turn head and adjustment nut, wherein:

Sleeve part, it is that barrel forward end outer side surface in a circular hollow is embedded one and keeps out the collar, and the front end interior sidewall surface then is embedded C shape ring, and the rear inside wall of sleeve is embedded with C shape ring equally, establish a bottom in the terminal spiral shell of sleeve again, the central authorities of this bottom are provided with a circular hole;

Described driving head, but its front end is provided with the voltage supply ccontaining containing hole of spring that contracts, and be provided with the drive lugs of a plurality of protrusions in the containing hole outer rim, and the rear side end of driving head then extends a screw rod, the terminal driving end that forms of screw rod, and this screw rod can run through the circular hole of bottom;

Described turn head, it can be mounted in the sleeve front side end, and with sleeve for being rotatably assorted, the front end of this turn head is provided with the turn end that meets the screw head shape, but terminal then be provided with the voltage supply ccontaining containing hole of spring that contracts, be provided with the turn projection of a plurality of protrusions in the containing hole outer rim;

Described adjustment nut, its spiral shell is located on the screw rod of driving head.