CN209483257U - Packing provision for disengagement - Google Patents

Abstract

The utility model provides a kind of packing provision for disengagement, belongs to technical field of petroleum extraction, and ontology is provided with U-shaped opening and first through hole, and fixture block is connected in U-shaped opening；The side of ontology is provided with the second through-hole, and the first area of screw rod is provided with multiple parallel circumferential grooves, and the second area of screw rod is provided with multiple parallel helicla flutes, and screw rod is additionally provided with rotary needle；Screw rod is inserted into first through hole, in guidance pin the second through-hole of insertion；When driving gear is in the extreme position of first area, guidance pin remains to be plugged in helicla flute；Driving gear is arranged in ontology and engages with circumferential groove, and rotating handles are connect with driving gear；It sells and is inserted into helicla flute when guidance, drive the rotation of sliding tooth wheel by rotation rotating handles, so that rotary needle rotation is moved downward or is rotated and move upwards；It is sold when guidance and is detached from helicla flute, driven the rotation of sliding tooth wheel by rotation rotating handles, move rotary needle upwardly or downwardly.

Description

Packing provision for disengagement

Technical field

The utility model relates to technical field of petroleum extraction more particularly to packing attaching/detaching apparatus.

Background technique

In existing pumping unit, wellhead sealing dress is provided between the oil pipe and oil pumping polish rod being located at pumping well head It sets, prevents pumping unit from gas blowout accident occurs.

Well mouth sealing device includes packing box and multiple packings for being arranged in packing box, and packing box is mounted on well mouth oil pipe Top, oil pumping polish rod may pass through the packing inside packing box；Packing is kept in contact and seals with oil pumping polish rod, and can be to work The oil pumping polish rod made in state realizes dynamic sealing.

However, when packing needs replacing, operating personnel needs packing with auxiliary tools such as screwdrivers from packing box It is taken out in annular space, packing disassembly process is cumbersome, low efficiency and the risk that there is damage packing box.

Utility model content

The utility model provides a kind of packing provision for disengagement, can simplify the disassembly process of packing, promotes tearing open for packing Efficiency is unloaded, and can be avoided the damage to packing box.

To achieve the goals above, the utility model adopts the following technical solution:

Packing provision for disengagement provided by the utility model, including ontology, fixture block, rotating handles, driving and draw gear, screw rod Guide pin；The ontology is provided with U-shaped opening and first through hole through end face and lower end surface thereon, and the fixture block is detachably connected In the U-shaped opening；The side of the ontology is provided with the second through-hole, and second through-hole and the first through hole connect It is logical；The outer peripheral surface of the screw rod is provided with first area and second area, axial direction setting of the first area along the screw rod There are multiple parallel circumferential grooves, the second area is provided with multiple parallel helicla flutes along the axial direction of the screw rod, described Screw rod is provided with rotary needle on the end face of the second area；The screw rod is inserted into the first through hole, the guidance Pin is inserted into second through-hole；When the driving gear is in the extreme position of first area, the guidance pin remains to grafting In the helicla flute；The driving gear is arranged in the ontology, and the driving gear is engaged with the circumferential groove, One end of the rotating handles passes through the ontology and connect with the driving gear；When guidance pin is inserted into the helicla flute It is interior, it drives the sliding tooth wheel to rotate by rotating the rotating handles, the rotary needle rotation is made to move downward or rotate It moves upwards；When guidance pin is detached from the helicla flute, by rotating the rotating handles drive sliding tooth wheel rotation, Move the rotary needle upwardly or downwardly.

Further, the circumferential groove is isosceles trapezoid along its axial cross section.

Further, the spiral angle of the helicla flute is 30 ° to 45 °.

Further, the U-shaped opening include semicircle cambered surface and by the both ends of the semicircle cambered surface extend first peace Dress face and the second mounting surface, first mounting surface are arranged in parallel with second mounting surface；First mounting surface and second Mounting surface is provided with multiple positive stop strips being equidistantly spaced from, the two neighboring institute on the first mounting surface or the second mounting surface It states and forms limiting slot between positive stop strip；Limiting slot positioned at the first mounting surface is opposite with the limiting slot being located on the second mounting surface； The both ends of the fixture block are provided with the limit double wedge with limiting slot cooperation.

Further, the fixture block is provided with the arcwall face of recess, the recess direction of the arcwall face and the semi arch The recess direction in face is opposite.

Further, the fixture block is provided with knob, and the knob is oppositely arranged with the arcwall face.

Further, the side of the ontology is provided with third through-hole, is provided with rolling bearing in the third through-hole；Institute The one end for stating rotating handles passes through the rolling bearing and connect with the driving gear.

Further, the rotating handles include connecting rod and rocking handle, and the rocking handle is detachably connected with the connecting rod.

Further, internal screw thread is provided in second through-hole；The guidance pin is provided with and second through-hole The external screw thread that internal screw thread matches；The guidance pin is connected to second through-hole by the external screw thread and the internal screw thread It is interior.

Further, the guidance pins position is provided with knob in described external one end.

Compared with prior art, packing provision for disengagement provided by the utility model has the following advantages that；

Packing provision for disengagement provided by the utility model, the outer peripheral surface of screw rod include first area and second area, and first Region is provided with multiple parallel circumferential grooves along the axial direction of screw rod, and second area is provided with multiple parallel along the axial direction of screw rod Helicla flute, screw rod are provided with rotary needle close to the end face of second area；Screw rod is inserted into the first through hole of ontology, wherein screw rod Helicla flute and guidance pin cooperation, selling guidance can be inserted into helicla flute, the circumferential groove of screw rod and intrinsic driving gear Engagement, the driving gear rotating handles external with this is located at are connect, and rotation rotating handles drive driving gear in first area Move up and down, when driving gear to move to the extreme position of first area, guidance pin remain to be inserted in in helicla flute.

When needing to take out the packing in packing box, keep rotary needle opposite with packing, guidance sold in insertion helicla flute, It rotates rotating handles and drives driving wheel rotation, move down screw rod, under the action of guiding pin, screw rod rotate downward Compound motion, and then rotary needle is screwed in packing；It rotates backward rotating handles and removes guidance pin out of helicla flute, screw rod It is moved upwards under the action of driving gear, and then rotary needle can take out packing from packing box.With operation in the prior art Personnel are compared packing from packing box taking-up using screwdriver, can be simplified the disassembly process of packing using the present apparatus, be promoted disk The removal efficiency of root, and can be avoided the damage to packing box.

In addition to the utility model described above solve the technical issues of, constitute technical solution technical characteristic and by Outside beneficial effect brought by the technical characteristic of these technical solutions, packing provision for disengagement provided by the utility model be can solve Other technologies problem, the other technical characteristics and these technical characteristic bring beneficial effects that include in technical solution, will Further details of explanation is made in a specific embodiment.

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 practical to this New embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing be only that a part of the embodiment of the utility model is not paying creation for those of ordinary skill in the art Property labour under the premise of, can also be obtained according to these attached drawings other attached drawings.

Fig. 1 is the structural schematic diagram of packing provision for disengagement provided by the embodiment of the utility model；

Fig. 2 is the top view of packing provision for disengagement provided by the embodiment of the utility model；

Fig. 3 is the structural schematic diagram of fixture block in Fig. 1；

Fig. 4 is the structural schematic diagram of ontology in Fig. 1；

Fig. 5 is the structural schematic diagram of screw rod in Fig. 1；

Fig. 6 is the motion state schematic diagram one provided by the embodiment of the utility model for driving gear, guidance pin and screw rod；

Fig. 7 is the motion state schematic diagram two provided by the embodiment of the utility model for driving gear, guidance pin and screw rod.

Description of symbols:

10- ontology, 11- first through hole,

The second through-hole of 12-, 13- semicircle cambered surface,

The first mounting surface of 14-, the second mounting surface of 15-,

16- positive stop strip, 20- fixture block,

21- arcwall face, 22- limit double wedge,

23- knob, 30- rotating handles,

40- driving gear, 50- screw rod,

The first area 51-, 52- second area,

53- rotary needle, 60- guidance pin,

511- circumferential groove, 521- helicla flute.

Specific embodiment

In order to keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with this reality With the attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, Described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.It is practical new based on this Embodiment in type, those of ordinary skill in the art's all other reality obtained without creative labor Example is applied, the range of the utility model protection is belonged to.

In the embodiments of the present invention description, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length Degree ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", The orientation or positional relationship of the instructions such as "outside", " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on attached drawing institute The orientation or positional relationship shown is merely for convenience of description the utility model embodiment and simplifies description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair The limitation of the utility model.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the utility model embodiment, the meaning of " plurality " is at least two, example Such as two, three etc., unless otherwise specifically defined.

As shown in Figures 1 to 7, packing provision for disengagement provided by the embodiment of the utility model, including ontology 10, fixture block 20, Rotating handles 30, driving gear 40, screw rod 50 and guidance pin 60；Ontology 10 is provided with through the U-shaped of end face thereon and lower end surface Opening and first through hole 11, fixture block 20 are detachably connected in U-shaped opening；The side of ontology 10 is provided with the second through-hole 12, and Second through-hole 12 is connected to first through hole 11；The outer peripheral surface of screw rod 50 is provided with first area 51 and second area 52, the firstth area Domain 51 is provided with multiple parallel circumferential grooves 511 along the axial direction of screw rod 50, and second area 52 is provided with along the axial direction of screw rod 50 Multiple parallel helicla flutes 521, screw rod 50 are provided with rotary needle 53 on the end face of second area 52；The insertion of screw rod 50 first In through-hole 11, guidance pin 60 is inserted into the second through-hole 12；When driving gear 40 is in the extreme position of first area 51, guidance pin 60 remain to be plugged in helicla flute 521；It drives gear 40 to be arranged in ontology 10, and gear 40 is driven to nibble with circumferential groove 511 It closes, one end of rotating handles 30 passes through ontology 10 and connect with driving gear 40；In the guidance insertion helicla flute 521 of pin 60, pass through Rotating rotating handles 30 drives driving gear 40 to rotate, and so that the rotation of rotary needle 53 is moved downward or is rotated and moves upwards；When drawing Guide pin 60 be detached from helicla flute 521, by rotation rotating handles 30 drive driving gear 40 rotate, make rotary needle 53 upwards or to Lower movement.

Specifically, ontology 10 is used to packing provision for disengagement being fixed on oil pumping polish rod, and packing provision for disengagement is located at disk The top of root box；Ontology 10 is formed by muti-piece metal board material splice comprising upper surface, lower end surface and side, upper surface is under End face and lateral surface surround column structure；Ontology 10 is provided with the U-shaped opening through upper surface and lower end surface and on ontology 10 Form medial surface.In the present embodiment, upper surface, lower end surface, lateral surface and the medial surface formation installation driving gear 40 of ontology 10, The cavity of screw rod 50.Ontology 10 is caught in using U-shaped opening from the side of oil pumping polish rod, and fixture block 20 is equipped in U-shaped opening, Ontology 10 is clamped and installed on oil pumping polish rod using fixture block 20.

In addition, ontology 10 is additionally provided with the first through hole 11 through upper surface and lower end surface, first through hole 11 is for installing Screw rod 50；The aperture that first through hole 11 can be set to circular through hole and first through hole 11 is slightly larger than the outer diameter of screw rod 50, makes screw rod 50 can move up and down in first through hole 11 under the driving of driving gear 40.The lateral surface of ontology 10 is provided with the second through-hole 12, the second through-hole 12 is connected to first through hole 11, and the axial direction of the second through-hole 12 can be axially vertical with first through hole 11.

The production of the round steel with wear resistant corrosion resistant can be used in screw rod 50, and the outer peripheral surface of screw rod 50 provided in this embodiment can divide Not Wei first area 51 and second area 52, and first area 51 and second area 52 can continuously be set in the outer peripheral surface of screw rod 50 It sets；Wherein, the axial direction in first area 51 along screw rod 50 is provided with multiple parallel circumferential grooves 511, and circumferential groove 511 with It drives gear 40 to cooperate, can make to drive in the double wedge insertion circumferential groove of gear 40；Along the axial direction of screw rod 50 in second area 52 Multiple parallel helicla flutes 521 are provided with, helicla flute 521 and guidance pin 60 cooperate, make that pin 60 is guided to can be inserted into helicla flute 521 Interior, the upper end of helicla flute 521 extends to the joining place of first area 51 and second area 52, and the other end extends under screw rod 50 End.It is understood that the spiral angle of helicla flute 521 is 30 ° to 45 °, second area 52 can be made to slide along guidance pin 60 suitable Freely.

When screw rod 50 is provided with rotary needle 53 on the end face of second area 52, and screw rod rotation moves downward, rotation In the rotatable insertion packing of needle 53, in 50 uplink of screw rod, rotary needle 53 can take out packing from packing box.Drive gear 40 In the cavity of ontology 10, and gear 40 is driven to be arranged close to the position of first through hole 11, drives gear 40 and be located at this Rotating handles 30 outside body 10 connect, and rotation rotating handles 30 can drive driving gear 40 to rotate.

When screw rod 50 is inserted into first through hole 11, driving gear 40 is engaged with the circumferential groove 511 of screw rod 50, rotation rotation Handle 30, driving gear 40 move up and down along first area 51；Pin 60 is guided to be inserted into the second through-hole 12, guidance pin 60 is located at this In one end insertion helicla flute 521 in body 10, under the limitation of guidance pin 60,50 opposing body of screw rod, 10 downward spiral can be made to transport Dynamic or spiral moves upwards；When driving gear 40 to move to extreme position on first area 51, guidance pin 60 remains to insert It connects in helicla flute 521, when preventing screw rod 50 from moving in first through hole 11, the disengaging of helicla flute 521 on second area 52 is drawn The limitation of guide pin 60, and screw rod 50 cannot be made to be rotated.

It is understood that driving gear 40 can slide up and down height greatly in first area 51 in first through hole 11 In the depth of packing box, the height that same second area 52 slips over guidance pin 60 is greater than the depth of packing box, it is ensured that rotation Needle 53 can screw in the bottom of packing box, disposably string and remove packing box for multiple packings in packing box, improve packing Removal efficiency.

Please continue to refer to Fig. 6 and Fig. 7, the process that packing takes out is introduced to using packing provision for disengagement；

When needing to take out the packing in packing box, the pressure cap of packing box is removed, ontology 10 is mounted on disk On oil pumping polish rod above root box, make 53 face packing of rotary needle, screw rod 50 is inserted into first through hole 11, makes to drive gear 40 It is engaged with circumferential groove 511, then by insertion guidance pin 60 in the second through-hole 12, and the one end for guiding pin 60 to be located at ontology 10 is inserted into In helicla flute 521, and it is located on the position a of second area 52；Rotating rotating handles 30 drives driving gear 40 to rotate, and makes to drive Location A of the gear 40 along first area 51 moves to B location, moves downward screw rod 50, and under the action of guiding pin 60, spiral shell The compound motion that bar 50 is rotated down, and then rotary needle 53 is screwed in packing.

When needing to take out rotary needle 53 from packing box, guidance pin 60 is removed out of helicla flute 521, rotates backward rotation Handle 30 drives driving gear 40 to move to A from the B of first area 51, correspondingly, second area 52 is corresponding with guidance pin 60 Position is moved to a point from b point；And then screw rod 50 moves upwards in first through hole 11, will packing of the string in rotary needle 53 from It is taken out in packing box.

Packing provision for disengagement provided in this embodiment simplifies removal process of the packing from packing box, and can pass through rotation Rotating the needle 53 once takes out multiple packings out of packing box, improves the removal efficiency for promoting packing；It also avoids simultaneously to disk The box body of root box damages.

On the basis of the above embodiments, circumferential groove 511 is isosceles trapezoid along its axial cross section.Specifically, circumferential recessed The double wedge of slot 511 and driving gear 40 cooperates, and annular groove is isosceles trapezoid along its axial section, can increase circumferential groove Frictional force between 511 and driving gear 40 makes to drive gear 40 and the transmission of screw rod 50 more stable, promotes transmission efficiency.

In the present embodiment, U-shaped opening include semicircle cambered surface 13 and by the both ends of semicircle cambered surface 13 extend first installation Face 14 and the second mounting surface 15, the first mounting surface 14 are arranged in parallel with the second mounting surface 15；First mounting surface 14 and the second installation Face 15 is provided with multiple positive stop strips 16 being equidistantly spaced from, adjacent two on the first mounting surface 14 or the second mounting surface 15 Limiting slot is formed between a positive stop strip 16；Limiting slot positioned at the first mounting surface 14 and the limiting slot on the second mounting surface 15 Relatively；The both ends of fixture block 20 are provided with the limit double wedge 22 with limiting slot cooperation.

Specifically, ontology 10 is provided with the U-shaped opening through upper surface and lower end surface and forms inside in the present embodiment Face, medial surface include semicircle cambered surface 13 and the first mounting surface 14 and the second mounting surface 15, the first mounting surface 14 and the second mounting surface 15 are arranged in parallel, the first mounting surface 14 and the second mounting surface 15 and the two sides for being located at semicircle cambered surface 13, the first mounting surface 14 It is tangent with semicircle cambered surface 13 respectively with the second mounting surface 15.

It has been evenly arranged in the first mounting surface 14 and the second mounting surface 15 along the direction of its edge direction to semicircle cambered surface 13 Multiple positive stop strips 16 form limiting slot, the length direction of limiting slot and the axis of first through hole 11 between two neighboring positive stop strip 16 To consistent；And it is opposite with the limiting slot being located on the second mounting surface 15 to be located at the limiting slot on the first mounting surface 14.

The both ends of fixture block 20 are provided with the limit double wedge 22 with limiting slot cooperation, and fixture block 20 is installed using limit double wedge 22 In U-shaped opening, fixture block 20 is adjusted in the installation site of U-shaped opening, ontology 10 can be clamped and installed on oil pumping polish rod.

To further enhance fixture block 20 to the clamping effect of oil pumping polish rod, in the present embodiment, fixture block 20 is provided with recess The recess direction of arcwall face 21, arcwall face 21 is opposite with the recess direction of semicircle cambered surface 13；It is understood that arcwall face 21 can Cooperate with the outer peripheral surface of oil pumping polish rod to be held, the tightness between fixture block 20 and oil pumping polish rod can be enhanced.

For convenience of fixture block 20 is mounted on ontology 10 or disassembles fixture block 20 from ontology 10, fixture block 20 is provided with Knob 23, knob 23 are oppositely arranged with arcwall face 21,23 arc-shaped shapes of shaking hands, and are provided on knob 23 anti-skidding convenient for grasping Line grasps convenient for operating personnel.

In the present embodiment, the side of ontology 10 is provided with third through-hole, is provided with rolling bearing in third through-hole；Rotate handle One end of hand 30 passes through rolling bearing and connect with driving gear 40.Specifically, the side of ontology 10 is provided with third through-hole, rotation Handle hand 30 is inserted into ontology 10 by third through-hole and is connect with the driving gear 40 in ontology 10；It is installed in third through-hole There is rolling bearing, rotating handles 30 are passed through out of rolling bearing；When rotating rotating handles 30, rotating handles 30 and this can be reduced Frictional force between body 10 keeps the rotation of rotating handles 30 more smooth.

Further, rotating handles 30 include connecting rod and rocking handle in the present embodiment, and rocking handle is detachably connected with connecting rod, Rocking handle is located at the outside of ontology 10, and one end of connecting rod is connect with rocking handle, and the other end passes through rolling bearing and driving gear 40 connects It connects, one end of the close rocking handle of connecting rod can be provided with the first spliced eye, rocking handle may be provided with sleeve joint hole, and in sleeve joint hole Offered on side wall with the first spliced eye cooperation the second spliced eye, rocking handle is socketed in connecting rod, make the first spliced eye with Second spliced eye is plugged with grafting pin in the first spliced eye and the second spliced eye to just, realizes connecting rod and rocking handle Detachable installation.

When the present apparatus is in non-working condition, rocking handle can be disassembled from connecting rod, make to drive gear 40 and connecting rod It keeps connection status and clamps to be mounted on ontology 10, reduce the occupied space of the present apparatus, it, will when the present apparatus is in running order Rocking handle is connected in connecting rod.

In the present embodiment, internal screw thread is provided in the second through-hole 12；Guidance pin 60 is provided with the interior spiral shell with the second through-hole 12 The external screw thread that line matches；Guidance pin 60 is connected in the second through-hole 12 by external screw thread and internal screw thread.

Specifically, guidance pin 60 is mounted in the second through-hole 12, internal screw thread, guidance pin can be provided in the second through-hole 12 60 be straight pin, guides and is provided with the external screw thread matched with the internal screw thread of the second through-hole 12 on the side of pin 60, guides pin 60 It is connected in the second through-hole 12 by internal screw thread and external screw thread, guidance pin 60, which is located at one end in ontology 10, can be inserted into helicla flute In 521.

It is mounted in the second through-hole 12 for convenience of guidance pin 60, one end that guidance pin 60 is located at outside ontology 10 is provided with rotation Guidance pin 60 can be mounted in the second through-hole 12 by button by turning knob.It is understood that guidance pin 60 is located at ontology 10 Outer one end is also provided with rotating handle, pin 60 will be guided to be mounted in the second through-hole 12 using rotating handle.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims (10)

1. a kind of packing provision for disengagement, which is characterized in that including ontology, fixture block, rotating handles, driving gear, screw rod and guidance Pin；

The ontology is provided with U-shaped opening and first through hole through end face and lower end surface thereon, and the fixture block is detachably connected In the U-shaped opening；

The side of the ontology is provided with the second through-hole, and second through-hole is connected to the first through hole；

The outer peripheral surface of the screw rod is provided with first area and second area, axial direction setting of the first area along the screw rod There are multiple parallel circumferential grooves, the second area is provided with multiple parallel helicla flutes along the axial direction of the screw rod, described Screw rod is provided with rotary needle on the end face of the second area；

The screw rod is inserted into the first through hole, and the guidance pin is inserted into second through-hole；The driving gear is in When the extreme position of first area, the guidance pin remains to be plugged in the helicla flute；

The driving gear is arranged in the ontology, and the driving gear is engaged with the circumferential groove, the rotation handle One end of hand passes through the ontology and connect with the driving gear；

In the guidance pin insertion helicla flute, drives the sliding tooth wheel to rotate by rotating the rotating handles, make The rotary needle rotation, which is moved downward or rotated, to be moved upwards；

When the guidance pin disengaging helicla flute, drives the sliding tooth wheel to rotate by rotating the rotating handles, make institute Rotary needle is stated upwardly or downwardly to move.

2. packing provision for disengagement according to claim 1, which is characterized in that the circumferential groove along its axial cross section be etc. Waist is trapezoidal.

3. packing provision for disengagement according to claim 1, which is characterized in that the spiral angle of the helicla flute be 30 ° extremely 45°。

4. packing provision for disengagement according to claim 1, which is characterized in that the U-shaped opening include semicircle cambered surface and by The first mounting surface and the second mounting surface that the both ends of the semicircle cambered surface are extended, first mounting surface and second installation Face is arranged in parallel；

First mounting surface and the second mounting surface are provided with multiple positive stop strips being equidistantly spaced from, in the first mounting surface or Limiting slot is formed between the two neighboring positive stop strip on second mounting surface；

Limiting slot positioned at the first mounting surface is opposite with the limiting slot being located on the second mounting surface；

The both ends of the fixture block are provided with the limit double wedge with limiting slot cooperation.

5. packing provision for disengagement according to claim 4, which is characterized in that the fixture block is provided with the arcwall face of recess, The recess direction of the arcwall face is opposite with the recess direction of the semicircle cambered surface.

6. packing provision for disengagement according to claim 5, which is characterized in that the fixture block is provided with knob, the knob It is oppositely arranged with the arcwall face.

7. packing provision for disengagement according to claim 1, which is characterized in that it is logical that the side of the ontology is provided with third Hole is provided with rolling bearing in the third through-hole；

One end of the rotating handles passes through the rolling bearing and connect with the driving gear.

8. packing provision for disengagement according to claim 7, which is characterized in that the rotating handles include connecting rod and shake Handle, the rocking handle are detachably connected with the connecting rod.

9. packing provision for disengagement according to claim 1, which is characterized in that be provided with internal screw thread in second through-hole；

The guidance pin is provided with the external screw thread matched with the internal screw thread of second through-hole；

The guidance pin is connected in second through-hole by the external screw thread and the internal screw thread.

10. packing provision for disengagement according to claim 9, which is characterized in that the guidance pins position is external in described One end is provided with knob.