CN202963257U - Reamer - Google Patents

Abstract

The utility model relates to a reamer (1) which comprises a main body (10), a force transmission component (20), a reamer bit (24) and a junction device (S), wherein the main body (10) comprises a passage part (12) with a through hole (13) and a receiving part (14) for receiving a pipe fitting maintaining element; the force transmission component can move in the through hole in the axial direction; a thread (22) is formed on the periphery of at least one part of the force transmission component; the reamer bit is connected with the force transmission component to perform reaming operation on a pipe fitting; the junction device can be selectively jointed with the force transmission component (20); when the junction device is jointed with the force transmission component, the junction device provides a counter acting force for the force transmission component; and when the junction device is divorced from the force transmission component, the force transmission component can slide in the axial direction. The reamer provided by the utility model can perform reaming operation on the pipe fitting more conveniently and quickly.

Description

Reamer

Technical field

The utility model relates to a kind of reamer.

Background technology

The content of this part only provides the background information relevant to the utility model, and it may not consist of prior art.

In for example refrigeration, power, processing and other fields, when for example the metal thin-wall pipe fitting is pegged graft to two pipe fittings, need and to carry out reaming to the end of one of them pipe fitting.At this moment, usually can use so-called reamer.

Yet although various reamers have been arranged in prior art, these reamer ubiquities operation inconvenience, the problem such as waste time and energy.

Therefore, need to a kind ofly can carry out the reamer of ream operation more conveniently.

The utility model content

A purpose of one or more embodiments of the present utility model is to provide a kind ofly can carry out the reamer of ream operation quickly and easily.

One or more to achieve these goals according to an aspect of the present utility model, provide a kind of reamer, comprising: body, described body comprise the channel part with through hole and the acceptance division that is used for receiving the pipe fitting retaining member; Force transmission member, described force transmission member can be in the through hole of described channel part along the axial direction of described channel part move and at least a portion outer peripheral face of described force transmission member on be provided with screw thread; The reaming head, described reaming head is connected that with described force transmission member pipe fitting is carried out ream operation; And engagement device, described engagement device is constructed to be permeable to optionally engage with described force transmission member, when described engagement device engages with described force transmission member, described engagement device provides reaction force for described force transmission member, when described engagement device and the disengagement of described force transmission member, described force transmission member can endwisely slip along it.

For example, in certain aspects, described engagement device comprises at least one fastener, described fastener is arranged on described body and comprises and the screw thread that is threadedly engaged with of described force transmission member, and wherein, described fastener can move between bonding station and unengaged position, at described bonding station, being threadedly engaged with of the screw thread of described fastener and described force transmission member, at described unengaged position, the screw thread of described fastener and the screw thread of described force transmission member are thrown off.

For example, in certain aspects, described fastener is arranged on described channel part.

For example, in certain aspects, described fastener pivotally is fixed on described channel part.

For example, in certain aspects, described fastener is fixed on described channel part in the position of its approximate mid-section.

For example, in certain aspects, described reamer further comprises the elastic component of described fastener towards described bonding station biasing.

For example, in certain aspects, described elastic component is any in Compress Spring, extension spring, torsionspring.

For example, in some respects described in the described through hole of channel part be the light face.

For example, in certain aspects, described reamer further comprises the elastic component that is arranged between described channel part and described force transmission member, and described elastic component applies elastic force along the direction that deviates from described pipe fitting retaining member towards described force transmission member.

For example, in certain aspects, described reaming head is connected to described force transmission member via feed bar.

For example, in certain aspects, the axial direction of described reaming head is predetermined angle with respect to the axial direction of described force transmission member.

For example, in certain aspects, described reaming head has conical end.

For example, in certain aspects, the screw thread of described force transmission member and the screw thread of described fastener all are configured to trapezoidal thread.

For example, in certain aspects, to be 2 and described 2 fasteners be arranged symmetrically on described channel part with respect to the axial direction of described force transmission member the quantity of described fastener.

For example, in certain aspects, described pipe fitting retaining member is the reaming bar.

For example, in certain aspects, described reamer further comprises be used to the retaining mechanism of locking described reaming bar.

For example, in certain aspects, described retaining mechanism comprises the first locking device, and described the first locking device comprises the lock-screw that extends through described acceptance division, and the first end of wherein said lock-screw comprises planar portions.

For example, in certain aspects, described lock-screw is that the first end of flat head screw or described lock-screw is conical butt.

For example, in certain aspects, the axial direction of described lock-screw is substantially vertical with the axial direction of described reaming bar.

For example, in certain aspects, the side relative with described lock-screw of described reaming bar is flat surfaces.

For example, in certain aspects, be formed with at least one in the side relative with described lock-screw of described reaming bar and be used for the first recess coordinates with described lock-screw, corresponding for the position of the retaining hole that keeps described pipe fitting in the position of described the first recess and described reaming bar.

For example, in certain aspects, second end opposite with described first end of described lock-screw comprises handle portion.

For example, in certain aspects, be formed with stopper slot on the outer surface of described lock-screw, be provided with the spacer pin that can engage with described stopper slot in described acceptance division.

For example, in certain aspects, described retaining mechanism comprises the second locking device, and described the second locking device and described the first locking device lay respectively at the both sides of described reaming bar.

For example, in certain aspects, described the second locking device comprises spring-loading outstanding element, and described outstanding element is interior side-prominent towards described acceptance division.

For example, in certain aspects, described reaming bar comprise that with side described outstanding elements relative at least one is used for the second recess that coordinates with described outstanding element, be used for keeping the position of retaining hole of described pipe fitting corresponding in the position of described the second recess and described reaming bar.

For example, in certain aspects, described the second locking device is configured to collision bead.

Be according to the advantage of the reamer of one or more embodiments of the present utility model:

according to a kind of embodiment of the present utility model, reamer comprises and is constructed to be permeable to the engagement device that optionally engages with force transmission member, when engagement device engages with force transmission member, engagement device provides reaction force for force transmission member, when engagement device and force transmission member disengagement, force transmission member can endwisely slip along it.In ream operation, when user's downward pressure transferring elements, engagement device can be placed in the position of throwing off with force transmission member, thereby the reaming head that is connected with force transmission member can slide into rapidly the operating position that contacts with the end of pipe fitting.Then, engagement device can be placed in the position that engages with force transmission member, at this moment, when user's rotational force transmitting part, because engagement device can provide reaction force for force transmission member, so be applied to axial downward the rotatablely moving that rotatablely moving on force transmission member is converted to force transmission member and reaming head, thereby the user can carry out ream operation to pipe fitting with less power.After pipe fitting had been carried out ream operation, the user can be placed in engagement device the position of throwing off with force transmission member, force transmission member can be moved to rapidly initial position thus.Due to force transmission member before the reaming head is implemented ream operation and can move rapidly afterwards, so significantly saved the whole reamer operation time used.

according to a kind of embodiment of the present utility model, engagement device can comprise fastener.Be provided with screw thread on the outer peripheral face of force transmission member, be provided with on fastener can and force transmission member on the screw thread that is threadedly engaged with and fastener can move between bonding station and unengaged position.In ream operation, when user's downward pressure transferring elements, the radial component that produces due to the interaction between the screw thread of the screw thread of force transmission member and fastener, fastener is moved to unengaged position, thereby the reaming head that is connected with force transmission member can arrive rapidly the operating position that contacts with the end of pipe fitting.Then, user's rotational force transmitting part, this moment is because fastener is in bonding station, be converted to axial downward the rotatablely moving of force transmission member and reaming head by screw thread pair so be applied to rotatablely moving on force transmission member, thereby the user can carry out ream operation to pipe fitting with less power.After pipe fitting had been carried out ream operation, the user can move to unengaged position with fastener, force transmission member can be moved to rapidly initial position thus.Due to force transmission member before the reaming head is implemented ream operation and can move rapidly afterwards, so significantly saved the whole reamer operation time used.In addition, because the threaded engagement of force transmission member and fastener can play the effect that power is amplified, thus required power when having reduced greatly that the user carries out ream operation, and guaranteed the quality of pipe fitting reaming end.

according to a kind of embodiment of the present utility model, fastener for example pivotally is fixed on the body of reamer, therefore can operate more easily fastener.

according to a kind of embodiment of the present utility model, reamer also comprises the elastic component of fastener towards the bonding station biasing, for example Compress Spring, extension spring or torsionspring.Therefore, when the downward pressure transferring elements, the active force between screw thread pair can overcome the bias force of spring and fastener is moved to unengaged position.And when rotational force transmitting part, elastic component can remain on bonding station with fastener reliably.

according to a kind of embodiment of the present utility model, the through hole in the channel part of reamer body is the light face, can freely axially-movable in this through hole so work as force transmission member.

according to a kind of embodiment of the present utility model, be provided with elastic component between channel part and force transmission member.Thereby after ream operation was completed, when the user moved to unengaged position with fastener, force transmission member can automatically revert to initial position under the effect of the elastic force of this elastic component.

according to a kind of embodiment of the present utility model, the screw thread of force transmission member and fastener all is configured to trapezoidal thread, so the radial component of the active force both can more easily move to unengaged position with fastener.

according to a kind of embodiment of the present utility model, reamer further comprises the retaining mechanism with quick locking reaming bar.More specifically, retaining mechanism comprises the first locking device that is made of lock-screw, and an end of lock-screw comprises planar portions.Therefore, compare with the situation that an end of the lock-screw of prior art is conical portion, when rotating the lock-screw of the utility model embodiment, the number of turns (perhaps only needing the stroke of axial direction still less) that lock-screw only need rotate still less can be locked the reaming bar.

according to a kind of embodiment of the present utility model, the side relative with lock-screw of reaming bar is flat surfaces.The situation that is formed with the cone-shaped groove corresponding with the conical portion of the lock-screw of prior art with the side of reaming bar is compared, when the lock-screw of locking the utility model embodiment and reaming bar, lock-screw the be locked number of turns or the stroke of required rotation of required time or lock-screw that be locked shortened greatly, thereby improved the operating efficiency of reamer.

according to a kind of embodiment of the present utility model, the retaining mechanism of reamer further comprises by spring-loading outstanding element the second locking device of consisting of of collision bead for example.This second locking device is arranged to preferably that to stride across the reaming bar relative with the first locking device.Therefore, can more stably lock the reaming bar.

according to a kind of embodiment of the present utility model, be formed with stopper slot on the outer surface of lock-screw, be provided with the spacer pin that can engage with this stopper slot in the acceptance division of reamer body.When lock-screw is outwards back-outed to the precalculated position, thus the further outwards motion of an end joined restriction lock-screw of spacer pin and stopper slot.Therefore, can prevent effectively that lock-screw from coming off or losing.

By explanation provided herein, other application will become apparent.Should be appreciated that, the particular example of describing in this part and embodiment only are in illustration purpose rather than attempt to limit scope of the present utility model.

Description of drawings

The accompanying drawing that this part is described only for purpose of explanation rather than view limit by any way scope of the present utility model.

Fig. 1 is the assembling stereogram according to the reamer of a kind of embodiment of the utility model.

Fig. 2 is the exploded perspective view according to the reamer of embodiment of the present utility model.

Fig. 3 is the front view according to the reamer of embodiment of the present utility model.

Fig. 4 is the longitudinal sectional view according to the reamer of embodiment of the present utility model, shows fastener and is in bonding station.

Fig. 5 is the longitudinal sectional view according to the reamer of embodiment of the present utility model, shows fastener and is in unengaged position.

Fig. 6 is the partial enlarged drawing of fastener peripheral part shown in Figure 4.

Fig. 7 A is the stereogram according to a direction of the reaming bar of embodiment of the present utility model; Fig. 7 B is the stereogram of another direction of reaming bar; Fig. 7 C is the stereogram that the reaming bar is in open mode.

Fig. 8 is the partial enlarged drawing of reaming bar retaining mechanism shown in Figure 4.

The specific embodiment

Following description is only exemplary in nature rather than attempts to limit the utility model, application and purposes.Should be appreciated that in these accompanying drawings, corresponding reference number indication similar or corresponding parts and feature.

The below is with reference to essential structure and the mode of operation of Fig. 1 to Fig. 8 description according to the reamer of the utility model embodiment.

As described in Fig. 1-2, consist essentially of body 10, force transmission member 20 and the reaming that is connected with force transmission member 20 24 according to the reamer 1 of the utility model embodiment.The reaming of reamer 1 24 can coordinate to carry out with reaming bar 40 the reaming bar 40 of ream operation.At this, reaming bar 40 is to treat a kind of example of the pipe fitting retaining member of reaming pipe fitting for maintenance.It should be appreciated by those skilled in the art that the pipe fitting retaining member is not limited to this, but can form other structures.

Body 10 can comprise the channel part 12 with through hole 13 and be used for receiving the particularly acceptance division 14 of reaming bar 40 of pipe fitting retaining member.More specifically, be formed with receive path 15 in acceptance division 14, reaming bar 40 can be received in this receive path 15 and can slide in this receive path 15.

Force transmission member 20 can move by the axial direction along channel part 12 in the through hole 13 of channel part 12.Be provided with screw thread 22 at least a portion outer peripheral face of force transmission member 20.Preferably, the through hole 13 of channel part 12 is the light face, thereby allows to be provided with force transmission member 20 freely-movable therein of screw thread 22.Herein, the implication of light face does not arrange screw thread for the inner surface in this hole, and the inner surface of limiting holes is not smooth, according to the actual configuration of reamer structure, can comprise the structures such as projection, step in this through hole 13 on the contrary.Be provided with handle 28 to facilitate user's operation on the opposite other end of an end with being provided with screw thread 22 of force transmission member 20.

As shown in Fig. 7 A, 7B and 7C, reaming bar 40 comprises the first half part 40-1 and the second half part 40-2.The first half part 40-1 and the second half part 40-2 are limited with a plurality of retaining holes 46 jointly.These retaining holes 46 have different internal diameters with corresponding to the pipe fitting with various outer diameter.The first half part 40-1 and the second half part 40-2 can open (as shown in Fig. 7 C) to put into or to take out corresponding pipe fitting.In example shown in the figure, the first half part 40-1 and the second half part 40-2 can be around the part pivotable shown in Reference numeral 47 with open and closes, but those skilled in the art should understand that the first half part 40-1 and the second half part 40-2 can be designed to independent of one another and can distinct two parts.An end in each retaining hole 46 is provided with conical surface part 46-1.This conical surface part 46-1 defines the shape that the end of pipe fitting will be formed by reaming.

Reaming 24 can for example be connected via feed bar 26 with force transmission member 20, thereby rotatablely moving under the screw of force transmission member 20 can be delivered in reaming 24.In addition, as shown in Figure 4, reaming 24 can have for example conical end 25.Reaming the 24 particularly axial direction of end 25 is predetermined angle with respect to the axial direction of force transmission member 20.The conical end 25 of reaming 24 can with reaming bar 40 in retaining hole 46 and the conical surface part 46-1 on retaining hole 46 coordinate with the end to pipe fitting and carry out ream operation.The structure of reaming 24 is not limited to shown in figure, but can adopt various other structures that provide in prior art.For example, reaming 24 can be directly connected on force transmission member 20, can adopt other to connect structure and be connected to feed bar 26.

According to the further engagement device S of reamer 1 of the utility model embodiment, described engagement device is constructed to be permeable to optionally engage with force transmission member 20.When engagement device S engaged with force transmission member, engagement device provided reaction force for force transmission member, and when engagement device and force transmission member disengagement, force transmission member can endwisely slip along it.

According to a kind of example, engagement device S can comprise fastener 60.Fastener 60 is arranged on body 10 and comprises the screw thread 62 that engages with the screw thread 22 of force transmission member 20.Particularly, fastener 60 can be arranged on the channel part 12 of body 10.Fastener 60 can move between bonding station (as shown in Figure 4) and unengaged position (as shown in Figure 5).At described bonding station, the screw thread 62 of fastener 60 can engage with the screw thread 22 of force transmission member 20, and at described unengaged position, the screw thread 62 of fastener 60 can be thrown off with the screw thread 22 of force transmission member 20.Preferably, the screw thread 22 of force transmission member 20 and the screw thread 62 of fastener 60 all are configured to trapezoidal thread, as shown in Figure 6.Therefore, when force transmission member 20 moves downward, can produce radial component between screw thread 22 and screw thread 62 so that fastener 60 is moved to unengaged position.

Further, fastener 60 can for example pivotally be fixed on channel part 12, for example is fixed on the protuberance 17 of channel part 12 via pivot 66.Preferably, fastener 60 can be fixed on channel part 12 in the position of its approximate mid-section.At this moment, an end of a side that is positioned at pivot 66 of fastener 60 is provided with screw thread 62, and an end that is positioned at pivot 66 opposite sides of fastener 60 can be used as the press section for user's operation.

Further, reamer 1 also comprises the elastic component 64 of fastener 60 towards the bonding station biasing.Although elastic component shown in figure 64 is with Compress Spring, those skilled in the art should understand that this elastic component 64 also can be configured to be positioned at fastener 60 an end that is provided with screw thread 62 extension spring or be positioned at torsionspring on pivot 66.

Adopt the as above fastener 60 of structure, when not having External Force Acting on fastener 60, fastener 60 is being in bonding station to engage with screw thread 22 on force transmission member 20 under the effect of the elastic force of elastic component 64.When user's pressing force transferring elements 60 do not have the threaded other end (hereinafter yet being referred to as the press section) time, throw off with the screw thread 22 of force transmission member 20 thereby fastener 60 rotates the screw thread 62 of fasteners 60 around pivot 66.When the user depresses handle 28 so that force transmission member 20 is when moving downward, the radial component that the active force between the screw thread 22 of force transmission member 20 and the screw thread 62 of fastener 60 produces will overcome the bias force of elastic component 64 and fastener 60 will be moved to unengaged position to allow force transmission member to move downward.When user's rotary handle 28 during with rotational force transmitting part 20, fastener 60 is in bonding station under the effect of elastic component 64, thereby the screw thread of force transmission member 20 22 is converted to rotatablely moving of force transmission member 20 with screw thread 62 interactions of fastener 60 axial downward the rotatablely moving of force transmission member 20, and the operating physical force with the user amplifies thus.

Although in example shown in the figure, fastener 60 is depicted as the trigger member that is subjected to spring-biased, but it will be appreciated by those skilled in the art that, fastener can be designed to other forms, for example can be designed as the movable part that is subjected to spring-biased that moves along the radial direction of force transmission member 20 and makes in the situation that not engaged with force transmission member by this movable part of external force in the situation that be subject to external force and throw off with force transmission member.In addition, it should be appreciated by those skilled in the art that elastic component 64 can be omitted.The holding member that in this case, other can be set on body 10 is to remain on fastener bonding station and/or unengaged position or to adopt manual mode that fastener is remained on bonding station and/or unengaged position.

Further comprise the elastic component 16 that is arranged between channel part 12 and force transmission member 20, for example Compress Spring according to the reamer 1 of the utility model embodiment.Elastic component 16 can apply elastic force towards force transmission member 20 along the direction that deviates from reaming bar 40.

Although the example shown in figure shows a fastener 60, it should be appreciated by those skilled in the art that reamer 1 can comprise a plurality of fasteners 60.For example, in the situation that reamer 1 comprises 2 fasteners 60, these 2 fasteners 60 can be arranged on channel part 12 symmetrically with respect to the axial direction of force transmission member 20.Certainly, those skilled in the art it is also contemplated that fastener 60 that 3 or 4 are set is with the reliability of the joint between the screw thread of the screw thread that increases fastener 60 and force transmission member.

Can further comprise for the retaining mechanism 30 of locking reaming bar 40 according to the reamer 1 of embodiment of the present utility model.

Retaining mechanism 30 can comprise the first locking device 30A.The first locking device 30A can comprise the lock-screw 32 of the wall that extends through acceptance division 14.The first end of lock-screw 32 comprises planar portions 33.At this, lock-screw 32 can be conical butt for the first end of flat head screw or lock-screw 32.Second end opposite with first end of lock-screw 32 can comprise handle portion 34.The axial direction of lock-screw 32 can be substantially vertical with the axial direction of reaming bar 40.

Correspondingly, as shown in Fig. 7 B, the side 42 relative with lock-screw 32 of reaming bar 40 is configured to flat surfaces.

The situation that is formed with the corresponding cone-shaped groove of this conical portion with the side that is conical portion and reaming bar, the end of the lock-screw of prior art is compared, when locking with unclamp the lock-screw 32 of the utility model embodiment and during reaming bar 40, due to the planar portions 33 of lock-screw 32 and the flattened side of reaming bar 40, locking and the number of turns or the stroke that unclamp required time or the required rotation of lock-screw are shortened greatly, thereby have improved the operating efficiency of reamer.

Alternately, also can be formed with at least one in the side 42 relative with lock-screw 32 of reaming bar 40 and be used for the recess coordinate with lock-screw 32, the position of described recess can be corresponding with the position of retaining hole 46 in reaming bar 40.In this case, because lock-screw 32 has planar portions 33, compare with the lock-screw with conical portion of above-mentioned prior art, also can reduce to lock and unclamp the required time.

Can also comprise the second locking device 30B according to the retaining mechanism 30 of the utility model embodiment.It is relative with the first locking device 30A that the second locking device 30B can stride across reaming bar 40.Namely, the second locking device 30B and the first locking device 30A can lay respectively at the both sides of reaming bar 40.As shown in Figure 8, the second locking device 30B can comprise spring-loading outstanding element 38, and described outstanding element 38 is interior side-prominent towards acceptance division 14.At this, spring-loading outstanding element 38 can be configured to for example comprise a projecting part and a spring element that is arranged on this projecting part dorsal part.Preferably, the second locking device 38 can be configured to collision bead as known in the art.Correspondingly, the side 44 relative with outstanding element 38 of reaming bar 40 can comprise that at least one is used for and the recess 45 of giving prominence to element 38 and coordinating.The position of the retaining hole 46 in the position of recess 45 and reaming bar 40 is corresponding.

Because the first locking device 30A and the second locking device 30B are separately positioned on the both sides of reaming bar 40, so can more stably lock reaming bar 40.

In addition, can form stopper slot 35 on the outer surface of lock-screw 32, and the spacer pin 36 that can engage with stopper slot 35 can be set in acceptance division 14.When lock-screw 32 is outwards back-outed to the precalculated position, thereby spacer pin 36 can limit with an end joined of stopper slot 35 the further outwards motion of lock-screw 32.Therefore, can prevent effectively that lock-screw 32 from coming off or losing.On the other hand, when lock-screw 32 inwardly is screwed into the precalculated position, thereby spacer pin 36 can limit with another end joined of stopper slot 35 the further inwardly motion of lock-screw 32.Therefore, can effectively prevent from applying excessive power to reaming bar 40.

As follows according to the mode of operation of the reamer 1 of the utility model embodiment.

At first open reaming bar 40 pipe fitting 50 put into the retaining hole 46 of corresponding internal diameter and to be made the end of pipe fitting 50 concordant with the upper surface of reaming bar 40.Then, close reaming bar 40 so that pipe fitting 50 is firmly held in reaming bar 40.

The reaming bar 40 that maintains pipe fitting 50 being inserted in the receive path 15 of acceptance division 14 of reamers 1 and reaming bar 40 is slided into the precalculated position makes the retaining hole 46 that maintains pipe fitting 50 and reaming 24 align.At this moment, spring-loading outstanding element 38 will be engaged in recess 45 on reaming bar 40 1 sides 44 to realize the accurate location of reaming bar 40.Rotational lock screw 32 until the planar portions 33 of lock-screw 32 against the flattened side 42 of reaming bar 40.Realize thus the locking of reaming bar 40.

The user depresses handle 28 so that force transmission member 20 moves downward, this moment force transmission member 20 the screw thread 62 of screw thread 22 and fastener 60 between the radial component that produces of active force overcome the bias force of elastic component 64 and fastener 60 moved to unengaged position to allow force transmission member to move downward until the reaming that is connected with force transmission member 20 24 contacts the end position of pipe fitting 50.Then, user's rotary handle 28 is with rotational force transmitting part 20, this moment, fastener 60 was in bonding station under the effect of elastic component 64, thereby because the screw thread 22 of force transmission member 20 screw thread 62 with fastener 60 interacts, the rotatablely moving of force transmission member 20 is converted to axially downward rotatablely moving, this axially downward rotatablely moving further be delivered to reaming 24 and make the conical surface part 46-1 of the retaining hole 46 of reaming 24 in the reaming bar 40 carry out roll extrusion to realize ream operation to pipe fitting 50.

After the ream operation of pipe fitting 50 was completed, as shown in Figure 5, the user can press the press section of fastener 60 so that fastener 60 is moved to unengaged position.At this moment, force transmission member 20 will automatically move upward under the effect of the elastic force of elastic component 16 and turn back to initial position.After this, the user can unclamp fastener 60 so that it automatically returns to bonding station.

Then, thus lock-screw 32 unclamps in user's rotating handles section 34.After this, can take out and open reaming bar 40 and complete the pipe fitting 50 of reaming with taking-up.Thus, completed ream operation to pipe fitting 50.

As mentioned above, in the reamer according to the utility model embodiment, because fastener can move between bonding station and unengaged position, so before the reaming head is implemented ream operation and afterwards force transmission member can promptly move, and implements the required whole time of ream operation thereby greatly reduced reamer.On the other hand, because the end of lock-screw has planar portions, so can reduce to lock or unclamp the required time of reaming bar, implement the required whole time of ream operation thereby further reduce reamer.In addition, have the enlarging function of power due to the threaded engagement between fastener and force transmission member, the user only needs less power just can implement ream operation, thereby has reduced user's operation burden.In sum, the reamer according to the utility model embodiment can convenient and swiftly carry out ream operation time saving and energy savingly.

Although described various embodiment of the present utility model in detail at this, but should be appreciated that the utility model is not limited to the specific embodiment of describing in detail and illustrating here, in the situation that do not depart from essence of the present utility model and scope can be realized by those skilled in the art other modification and variant.All these modification and variant all fall in scope of the present utility model.And, all members described here, parts or feature can by on other structures and the member that is equal on function, parts or feature replace.

Claims (27)

1. a reamer (1) comprising:

Body (10), described body (10) comprise have through hole (13) channel part (12) and be used for to receive the acceptance division (14) of pipe fitting retaining member;

Force transmission member (20), described force transmission member (20) can be in the through hole (13) of described channel part (12) along being provided with screw thread (22) at least a portion outer peripheral face of the axial direction motion of described channel part (12) and described force transmission member (20); And

Reaming head (24), described reaming head (24) is connected that with described force transmission member (20) pipe fitting (50) is carried out ream operation;

It is characterized in that: described reamer further comprises: engagement device (S), described engagement device is constructed to be permeable to optionally engage with described force transmission member (20), when described engagement device engages with described force transmission member, described engagement device provides reaction force for described force transmission member, when described engagement device and the disengagement of described force transmission member, described force transmission member can endwisely slip along it.

2. reamer as claimed in claim 1 (1), it is characterized in that: described engagement device (S) comprises at least one fastener (60), described fastener (60) is arranged on described body (10) upward and comprises the screw thread (62) that engages with the screw thread (22) of described force transmission member (20)

Wherein, described fastener (60) can move between bonding station and unengaged position, at described bonding station, the screw thread (62) of described fastener (60) engages with the screw thread (22) of described force transmission member (20), at described unengaged position, the screw thread (62) of described fastener (60) is thrown off with the screw thread (22) of described force transmission member (20).

3. reamer as claimed in claim 2, it is characterized in that: described fastener (60) is arranged on described channel part (12).

4. reamer as claimed in claim 3, it is characterized in that: described fastener (60) pivotally is fixed on described channel part (12).

5. reamer as claimed in claim 4, it is characterized in that: described fastener (60) is fixed on described channel part (12) in the position of its approximate mid-section.

6. reamer as claimed in claim 2 is characterized in that: described reamer further comprises the elastic component (64) of described fastener (60) towards described bonding station biasing.

7. reamer as claimed in claim 6 is characterized in that: any in Compress Spring, extension spring, torsionspring of described elastic component (64).

8. reamer as claimed in claim 1, it is characterized in that: the described through hole (13) of described channel part (12) is the light face.

9. reamer as claimed in claim 1, it is characterized in that: described reamer further comprises the elastic component (16) that is arranged between described channel part (12) and described force transmission member (20), and described elastic component (16) applies elastic force along the direction that deviates from described pipe fitting retaining member towards described force transmission member (20).

10. reamer as claimed in claim 1, it is characterized in that: described reaming head (24) is connected to described force transmission member (20) via feed bar (26).

11. reamer as claimed in claim 1 is characterized in that: the axial direction of described reaming head (24) is predetermined angle with respect to the axial direction of described force transmission member (20).

12. reamer as claimed in claim 1 is characterized in that: described reaming head (24) has conical end (25).

13. reamer as claimed in claim 2 is characterized in that: the screw thread (22) of described force transmission member (20) and the screw thread (62) of described fastener (60) all are configured to trapezoidal thread.

14. reamer as claimed in claim 2 is characterized in that: to be 2 and described 2 fasteners (60) be arranged on described channel part (12) with respect to the axial direction of described force transmission member (20) quantity of described fastener (60) symmetrically.

15. reamer as described in any one in claim 1-14 is characterized in that: described pipe fitting retaining member is reaming bar (40).

16. reamer as claimed in claim 15 is characterized in that: described reamer further comprises be used to the retaining mechanism (30) of locking described reaming bar (40).

17. reamer as claimed in claim 16, it is characterized in that: described retaining mechanism (30) comprises the first locking device (30A), described the first locking device (30A) comprises the lock-screw (32) that extends through described acceptance division (14), and the first end of wherein said lock-screw (32) comprises planar portions (33).

18. reamer as claimed in claim 17 is characterized in that: described lock-screw (32) is conical butt for the first end of flat head screw or described lock-screw (32).

19. reamer as claimed in claim 17 is characterized in that: the axial direction of described lock-screw (32) is substantially vertical with the axial direction of described reaming bar (40).

20. reamer as claimed in claim 19 is characterized in that: the side (42) relative with described lock-screw (32) of described reaming bar (40) is flat surfaces.

21. reamer as claimed in claim 19, it is characterized in that: be formed with at least one in the side (42) relative with described lock-screw (32) of described reaming bar (40) and be used for the first recess coordinates with described lock-screw (32), corresponding for the position of the retaining hole (46) that keeps described pipe fitting (50) in the position of described the first recess and described reaming bar (40).

22. reamer as claimed in claim 17 is characterized in that: second end opposite with described first end of described lock-screw (32) comprises handle portion (34).

23. reamer as claimed in claim 17 is characterized in that: be formed with stopper slot (35) on the outer surface of described lock-screw (32), be provided with the spacer pin (36) that can engage with described stopper slot (35) in described acceptance division (14).

24. reamer as claimed in claim 16, it is characterized in that: described retaining mechanism (30) comprises the second locking device (30B), and described the second locking device (30B) and described the first locking device (30A) lay respectively at the both sides of described reaming bar (40).

25. reamer as claimed in claim 24 is characterized in that: described the second locking device (30B) comprises spring-loading outstanding element (38), and described outstanding element (38) is interior side-prominent towards described acceptance division (14).

26. reamer as claimed in claim 25, it is characterized in that: the side (44) relative with described outstanding element (38) of described reaming bar (40) comprises that at least one is used for the second recess (45) that coordinates with described outstanding element (38), is used for keeping the position of retaining hole (46) of described pipe fitting (50) corresponding in the position of described the second recess (45) and described reaming bar (40).

27. reamer as claimed in claim 24 is characterized in that: described the second locking device (38) is configured to collision bead.

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